3000306

3023520

3023525

3000306

4.1R

1.3R.1R

1

1

1.1L

1.3R

3

1

4

1.2L

1

1.1R

2

1

3

1965

1995

1963 1960

1960

1960 563

564

174

175

175

176

A

A

B

B

C

C

D

D

E

E

F

F

G

G

H

H

I

I

J

J

10 10

9 9

8 8

7 7

6 6

5 5

4 4

3 3

2 2

1 1

Unit Number 174 ROD VCU: 

0 500

Feet

Past Harvest

(Year Origin)

Unsuitable Soils

Riparian Management

Area

Slope > 72%

Other Ownership

Old Growth Habitat LUD

Recreation River LUD

Scenic River LUD

State Highway

National Forest System Road - Open

National Forest System Road - Stored

Non-National Forest 

System Road

Proposed Reconstructed Road

Proposed System Road 

(reopened Decommissioned)

Proposed Temporary Road 

(reopened Decommissioned)

Proposed System Road

Proposed Temporary

Road

Old Growth

Helicopter

Shovel or Cable

Partial Cut

Young Growth

Systematic Strip Thin

Uniform Crown Thin

Class 1 Stream

Class 2 Stream

Class 3 Stream

Class 4 Stream

Lake

100’ Contour

Eagle Nest Buffer

Legacy

Visual Buffer

Deferred (within

Original Unit

Reconnaissance

Area)

583

RR

SR

R:\projects_2010\BigThorneEIS\maps\Unitcards\ROD.mxd 3 June 2013

Appendix 1 - Unit Cards - 399 Appendix 1
Unit 

Number: 175

Alternatives: ROD Total Unit 

Acres: 4.0

Prescription: Clearcut

VCU 

Number: 583

Yarding System:

Helicopter

Net Harvest

Volume 

(MBF): 109

LUD: Modified Landscape

Summary of Concerns, Responses, BMPs and Mitigation

SILVICULTURE: Existing Condition: This unit has old-growth stand structure with over-mature timber. The 

overstory consists primarily of western hemlock along with Alaska-cedar and Sitka spruce. Many dead western 

hemlock are also present throughout the unit. Western redcedar occurs in isolated patches. Physical defects and 

stem decay were rated high. Mistletoe is moderate and windthrow risk is moderate. All adjacent past harvest areas 

have regeneration at least 5 feet tall, meeting NFMA requirements for no longer being considered openings.

Silvicultural Prescription: Even-age Management

This stand is mature with high levels of decay and defect resulting in a situation where stand growth is being offset 

by decay. Even-aged clear cutting is being prescribed to preclude or minimize the risk of windthrow post harvest, 

promote natural regeneration by opening up the canopy and minimize defect and disease in the future stand to the 

maximum extent possible.

The legacy standard and guide applies in this VCU. The potential opening is less than 20 acres. No legacy set-aside 

is required.

TIMBER/YARDING: Helicopter yarding to NFS road 3000306. 

ENGINEERING/ROADS: Unit is accessed by reconstruction of NFS road 3000306, totaling 1,700 feet. This road is 

also used to access Units 563, 174 and 176. See road card for information on NFS road.

BOTANY: No Concerns

INVASIVE SPECIES: No Concerns

FISHERIES: Streams are tributaries to Ratz Harbor

All streams in unit: Class: IV Flagging: G/W C- Type: HC or MM 

Buffer (RMA): none Buffer (RAW): no review needed Protection: Category C

GEOLOGY/KARST: No Concerns

HERITAGE RESOURCES: This unit was investigated per the third amended interagency Programmatic Agreement 

(PA) for historic properties. As specified by the PA, any potential adverse effect on historic properties (if any) was 

mitigated and portions of the Area of Potential Effect will be monitored by a qualified heritage specialist during 

and/or after actual ground disturbance.

SCENERY: No Concerns

RECREATION: No concerns, but note that the two polygons of the unit are on opposite sides of and border a finger 

of the Thorne River inventoried roadless area.

SOILS/WETLANDS: Slopes range from 35 to 65%. Approximately 18 acres were excluded due to colluvial 

activity, steep wet slopes, and active and historic landslides. Forested wetlands occupy about 40% of the unit (R10 

BMP 12.5 and National Core BMPs AqEco-2 and AqEco-4). In the remainder of the unit, a minimum of partial 

suspension would meet soil and wetland resource concerns (R10 BMPS 12.5, 13.5, and 13.9 and National Core 

BMPs Plan-2, AqEco-2, AqEco-4, Veg-1, Veg-2, and Veg-5).

WILDLIFE: Unit includes average snow deer winter range (entire unit), all of which is also deep snow marten 

habitat/deer winter range. Legacy standard and guideline applies in this VCU, however there are no requirements for 

this unit because it is less than 20 acres.

400 - Big Thorne Project Record of Decision Appendix 1
3000306

3023525

3023520

3000306

4.1R

1.3R.1R

4

3

1

1.1L

1.3R

1

1

4

1.2L

1

1.1R

2

1

3

1965

1965

1995

1963

177

563

174

175

175

176

178

A

A

B

B

C

C

D

D

E

E

F

F

G

G

H

H

I

I

J

J

10 10

9 9

8 8

7 7

6 6

5 5

4 4

3 3

2 2

1 1

Unit Number 175 ROD VCU: 

0 500

Feet

Past Harvest

(Year Origin)

Unsuitable Soils

Riparian Management

Area

Slope > 72%

Other Ownership

Old Growth Habitat LUD

Recreation River LUD

Scenic River LUD

State Highway

National Forest System Road - Open

National Forest System Road - Stored

Non-National Forest 

System Road

Proposed Reconstructed Road

Proposed System Road 

(reopened Decommissioned)

Proposed Temporary Road 

(reopened Decommissioned)

Proposed System Road

Proposed Temporary

Road

Old Growth

Helicopter

Shovel or Cable

Partial Cut

Young Growth

Systematic Strip Thin

Uniform Crown Thin

Class 1 Stream

Class 2 Stream

Class 3 Stream

Class 4 Stream

Lake

100’ Contour

Eagle Nest Buffer

Legacy

Visual Buffer

Deferred (within

Original Unit

Reconnaissance

Area)

583

RR

SR

R:\projects_2010\BigThorneEIS\maps\Unitcards\ROD.mxd 3 June 2013

Appendix 1 - Unit Cards - 401 Appendix 1
Unit 

Number: 176

Alternatives: ROD Total Unit 

Acres: 5.9

Prescription: Clearcut

VCU 

Number: 583

Yarding System: 

Helicopter

Net Harvest

Volume 

(MBF): 162

LUD: Modified Landscape

Summary of Concerns, Responses, BMPs and Mitigation

SILVICULTURE: Existing Condition: This unit has old-growth stand structure with over-mature timber. The 

overstory consists primarily of western hemlock along with a fairly equal mix of Alaska-cedar and Sitka spruce. 

Stem rot is the main damage agent affecting tree health and volume. The overall average defect is moderate with 

some areas having higher ratings. Windthrow risk is moderate. All adjacent even-aged stands have regenerated. 

There are no adjacent openings.

Silvicultural Prescription: Even-age Management

This stand is mature with heavy stem decay and defect resulting in a situation where stand growth is being offset by 

decay. Even-aged clear cutting is being prescribed to preclude or minimize the risk of windthrow post harvest, 

promote natural regeneration by opening up the canopy and minimize defect and disease in the future stand to the 

maximum extent possible. The potential harvest opening is less than 20 acres due to removals for non-merchantable 

timber. No legacy acreage is required. 

TIMBER/YARDING: Helicopter yarding to NFS road 3000306.

ENGINEERING/ROADS: Unit is accessed by reconstruction of NFS road 3000306, totaling 1,700 feet. This road is 

also used to access Units 563, 174 and 175. See road card for information on NFS road.

BOTANY: No Concerns

INVASIVE SPECIES: No Concerns

FISHERIES: Streams are tributaries to Ratz Harbor

All streams in unit: Class: IV Flagging: G/W C- Type: HC or MM 

Buffer (RMA): none Buffer (RAW): no review needed Protection: Category C

GEOLOGY/KARST: 

HERITAGE RESOURCES: 

SCENERY: 

RECREATION: 

SOILS/WETLANDS: In the current unit, slopes range from 10 to 30%. Forested wetlands occupy about 40% of the 

unit (R10 BMP 12.5 and National Core BMPs AqEco-2 and AqEco-4). A minimum of partial suspension would 

meet soil and wetland resource concerns (R10 BMPS 12.5, 13.5, and 13.9 and National Core BMPs Plan-2, AqEco2, AqEco-4, Veg-1, Veg-2, and Veg-5).

WILDLIFE: Legacy VCU however no legacy required due to partial harvest and opening size less than 20 acres.

402 - Big Thorne Project Record of Decision Appendix 1
3000306

3000000

3000306

1.1L

2.1R

2

4.1R

3

2

4

1

1.1R

1

3

1965

1990

1965

1995

1963

563

564

174

175

176

178

A

A

B

B

C

C

D

D

E

E

F

F

G

G

H

H

I

I

J

J

10 10

9 9

8 8

7 7

6 6

5 5

4 4

3 3

2 2

1 1

Unit Number 176 ROD VCU: 

0 500

Feet

Past Harvest

(Year Origin)

Unsuitable Soils

Riparian Management

Area

Slope > 72%

Other Ownership

Old Growth Habitat LUD

Recreation River LUD

Scenic River LUD

State Highway

National Forest System Road - Open

National Forest System Road - Stored

Non-National Forest 

System Road

Proposed Reconstructed Road

Proposed System Road 

(reopened Decommissioned)

Proposed Temporary Road 

(reopened Decommissioned)

Proposed System Road

Proposed Temporary

Road

Old Growth

Helicopter

Shovel or Cable

Partial Cut

Young Growth

Systematic Strip Thin

Uniform Crown Thin

Class 1 Stream

Class 2 Stream

Class 3 Stream

Class 4 Stream

Lake

100’ Contour

Eagle Nest Buffer

Legacy

Visual Buffer

Deferred (within

Original Unit

Reconnaissance

Area)

583

RR

SR

R:\projects_2010\BigThorneEIS\maps\Unitcards\ROD.mxd 3 June 2013

Appendix 1 - Unit Cards - 403 Appendix 1
Unit 

Number: 177

Alternatives: ROD Total Unit 

Acres: 58.6

Prescription: 50% Removal

VCU 

Number: 583

Yarding System:

Helicopter

Net Harvest

Volume 

(MBF): 781

LUD: Modified Landscape, 

Timber Production

Summary of Concerns, Responses, BMPs and Mitigation

SILVICULTURE: Existing Condition: Unit 177 has old-growth stand structure. Overstory is western hemlock, 

Sitka spruce and Alaska-cedar with some scattered western redcedar. The stand is high defect due to heavy stem 

decay and poor stem form. Mistletoe is light and windthrow risk is moderate. All adjacent past harvest areas have 

regeneration at least 5 feet tall, meeting NFMA requirements for no longer being considered openings.

A Tongass Wide Young Growth Study site (POW Ratz Experiment #4) is to the southeast of this unit. Protection of 

this site is required. Contact the Forest Science Lab in Juneau for additional information.

Silvicultural Prescription: Uneven-age Management Single Tree Selection

Maintain at least 50 percent of the setting pretreatment basal area, based on standing live tree total for the unit, 

uncut. Review the marking guides in the harvest prescription for this unit to obtain basal area by species allowances 

and other specific instructions. Review the introduction to the unit cards for general guidance. This system is not 

optimum for promoting timber production but is being prescribed due to the visibility of the unit. No Legacy acres 

required under uneven-aged management.

TIMBER/YARDING: Helicopter yarding to the proposed temporary road accessing Unit 557.

ENGINEERING/ROADS: This unit utilizes the proposed temporary road of 2,800 feet constructed into Unit 557 as 

displayed on the unit card for Unit 557. This entire road will be constructed over decommissioned road bed. Unit is 

accessed by reconstruction of NFS road 3023500 for 200 feet; and reconstruction of NFS road 3023530 for 4,800 

feet. See road cards for information on NFS roads.

BOTANY: No Concerns

INVASIVE SPECIES: No Concerns

FISHERIES: Streams are tributaries to Ratz Creek

Stream#: 1 Class: III, IV Flagging: O/W, G/W C- Type: HCM, HCO Concerns: none

Buffer (RMA): Class III for HCM- to the top of side-slope break. Class IV for HCO- none

Alternatives: ROD Buffer (RAW): no review needed Protection: Category B and C

Stream#: 2 Class: III, IV Flagging: O/W, G/W C- Type: HCD, HCO 

Concerns: blowdown, active erosion, mobile particles and bedrock side-slopes

Buffer (RMA): Class III for HCD- to the top of the side-slope break Class IV for HCO- none

Alternatives: ROD Buffer (RAW): no review needed Protection: Category B and C

Stream#: 3 Class: III, IV Flagging: O/W, G/W C- Type: HCD, HCO 

Concerns: blowdown, active erosion, mobile particles and bedrock side-slopes

Buffer (RMA): Class III for HCD- to the top of the side-slope break. Class IV for HCO- none 

Alternatives: ROD Buffer (RAW): no review needed Protection: Category B and C

Stream#: 3.1R Class: III, IV Flagging: O/W, G/W C- Type: HCD, HCO 

Concerns: blowdown, active erosion, mobile particles and bedrock side-slopes

Buffer (RMA): Class III for HCD- to the top of the side-slope break. Class IV for HCO- none.

Alternatives: ROD Buffer (RAW): no review needed. Protection: Category B 

Stream#: 3.3R Class: III, IV Flagging: O/W, G/W C- Type: HCM, HCO 

Concerns: blowdown, active erosion, mobile particles and bedrock side-slopes

Buffer (RMA): Class III for HCM- to the top of the side-slope break Class IV for HCO- none 

Alternatives: ROD Buffer (RAW): no review needed Protection: Category B and C

All other streams in unit: Class: IV Flagging: G/W C- Type: HC or MM 

Buffer (RMA): none Buffer (RAW): no review needed Protection: Category C

404 - Big Thorne Project Record of Decision Appendix 1
GEOLOGY/KARST: No Concerns

HERITAGE RESOURCES: This unit was investigated per the third amended interagency Programmatic Agreement 

(PA) for historic properties. As specified by the PA, any potential adverse effect on historic properties (if any) was 

mitigated and portions of the Area of Potential Effect will be monitored by a qualified heritage specialist during 

and/or after actual ground disturbance.

SCENERY: No Concerns

RECREATION: No Concerns, but unit borders the Thorne River roadless area on its northern border.

SOILS/WETLANDS: Slopes range from 30 to 90%. The majority of the slopes average 55 to 70%. About 4 acres 

slopes greater than 72% is suitable for harvest with full suspension. Approximately 9 acres were excluded due to 

high landslide potential, colluvial activity, steep slopes, and unstable drainages. Small areas of forested wetlands 

were identified in the middle of the unit (R10 BMP 12.5 and National Core BMPs AqEco-2 and AqEco-4). In the 

remainder of the unit, a minimum of full suspension would meet soil and wetland resource concerns (R10 BMPS 

12.5, 13.5, and 13.9 and National Core BMPs Plan-2, AqEco-2, AqEco-4, Veg-1, Veg-2, and Veg-5).

WILDLIFE: Unit includes average snow deer winter range (entire unit). Legacy standard and guideline applies in 

this VCU. No Legacy acres required because adequate structure retained in unit under uneven-aged harvest 

prescription (i.e., no openings larger than 20 acres).

Appendix 1 - Unit Cards - 405 Appendix 1
3023530

2

3023530

.1L

3

2

4

5

7

3.3R

1

3 1. R.1L 3.2R

4

6

2

9

2

1.1R.1R

2

3

5

3. 1

R

2

1

1

1.1R

1963

1995

177

557

558

A

A

B

B

C

C

D

D

E

E

F

F

G

G

H

H

I

I

J

J

10 10

9 9

8 8

7 7

6 6

5 5

4 4

3 3

2 2

1 1

Unit Number 177 ROD VCU: 

0 500

Feet

Past Harvest

(Year Origin)

Unsuitable Soils

Riparian Management

Area

Slope > 72%

Other Ownership

Old Growth Habitat LUD

Recreation River LUD

Scenic River LUD

State Highway

National Forest System Road - Open

National Forest System Road - Stored

Non-National Forest 

System Road

Proposed Reconstructed Road

Proposed System Road 

(reopened Decommissioned)

Proposed Temporary Road 

(reopened Decommissioned)

Proposed System Road

Proposed Temporary

Road

Old Growth

Helicopter

Shovel or Cable

Partial Cut

Young Growth

Systematic Strip Thin

Uniform Crown Thin

Class 1 Stream

Class 2 Stream

Class 3 Stream

Class 4 Stream

Lake

100’ Contour

Eagle Nest Buffer

Legacy

Visual Buffer

Deferred (within

Original Unit

Reconnaissance

Area)

583

RR

SR

R:\projects_2010\BigThorneEIS\maps\Unitcards\ROD.mxd 3 June 2013

406 - Big Thorne Project Record of Decision Appendix 1
Unit 

Number: 178

Alternatives: ROD Total Unit 

Acres: 26.7

Prescription: Clearcut

VCU 

Number: 583

Yarding System:

Cable, Helicopter

Net Harvest

Volume 

(MBF): 401

LUD: Modified Landscape

Summary of Concerns, Responses, BMPs and Mitigation

SILVICULTURE: Existing Condition: This unit has old-growth stand structure with a western hemlock overstory. 

Sitka spruce, western redcedar and Alaska-cedar are intermixed in the overstory. The dominant damage agents are 

heart rot, stem decay and patches of stem deformity (pistol butts). Alaska-cedar are generally poor quality and overmature with high defect. Mistletoe is light and windthrow risk is moderate. All adjacent past harvest areas have 

regeneration at least 5 feet tall, meeting NFMA requirements for no longer being considered openings.

Silvicultural Prescription: Even-age Management

This stand is mature with moderate to high levels of decay and defect resulting in a situation where stand growth is 

being offset by decay. Even-aged clear cutting is being prescribed to preclude or minimize the risk of windthrow 

post-harvest, promote natural regeneration by opening up the canopy and minimize defect and disease in the future 

stand to the maximum extent possible.

The legacy standard and guide applies in this VCU. This requires that approximately 13 acres of productive old 

growth representative of the overall composition of the planned harvest area be maintained. Legacy was placed to 

coincide with deferred IRA areas and along the stream, building off of and providing RAW to the RMA. 

TIMBER/YARDING: Cable and helicopter yarding to the proposed temporary road.

ENGINEERING/ROADS: Unit is accessed by a proposed temporary road of 1,600 feet. Approximately 1,200 feet 

of this road will be constructed over decommissioned road bed.

BOTANY: No Concerns

INVASIVE SPECIES: No Concerns

FISHERIES: Streams are tributaries to Ratz Creek.

Stream#: 1 Class: III Flagging: O/W C- Type: HCD Concerns: Blowdown

Buffer (RMA): Class III for HCD- to the top of the side-slope break. 

Alternatives: ROD Buffer (RAW): no review needed Protection: Category B

Stream#: 2 Class: II, III Flagging: B/W, O/W C- Type: HCL, HCM 

Concerns: Blowdown and active erosion

Buffer (RMA): Class II for HCL- greater of 100 feet or to the top of the side-slope break Class III for HCM- to the 

top of the side-slope break

Alternatives: ROD Buffer (RAW): no review needed Protection: Category A and B

Stream#: 2.1R Class: II Flagging: B/W C- Type: HCO Concerns: Blowdown and active erosion

Buffer (RMA): Class II for HCO- greater of 100 feet or to the top of the side-slope break

Alternatives: ROD Buffer (RAW): no review needed Protection: Category A 

All other streams in unit: Class: IV Flagging: G/W C- Type: HC 

Buffer (RMA): none Buffer (RAW): no review needed. Protection: Category C

Temporary roads for Unit 178: One Class III stream crossing. If any additional stream crossings are found, 

crossings structures and locations will be approved by USFS, in consultation with fisheries biologist or hydrologist, 

prior to construction (BMP 14.17). During construction of temporary roads, implement BMPs 12.17, 13.10, 13.11, 

13.6, 14.3, and 14.5.

GEOLOGY/KARST: No Concerns

HERITAGE RESOURCES: This unit was investigated per the third amended interagency Programmatic Agreement 

(PA) for historic properties. As specified by the PA, any potential adverse effect on historic properties (if any) was 

mitigated and portions of the Area of Potential Effect will be monitored by a qualified heritage specialist during 

and/or after actual ground disturbance.

SCENERY: No Concerns

Appendix 1 - Unit Cards - 407 Appendix 1
RECREATION: No Concerns, but unit abuts the Thorne River inventoried roadless area on the south.

SOILS/WETLANDS: Slopes range from 30 to 65%. Intermittent forested wetlands are found in the unit (R10 BMP 

12.5 and National Core BMPs AqEco-2 and AqEco-4). The soils and wetlands are suitable for a minimum of partial 

suspension cable yarding, and helicopter yarding should follow R10 BMPs 12.5, 13.2 and 13.9 and National Core 

BMPs Plan-2, Veg-2, Veg-5, and Veg-6. 

The proposed temporary road does not cross any wetland. Provide adequate cross drainage, remove drainage 

structures, and close road after harvest. Follow R10 BMPs12.5 and 14.9 and National Core BMPs AqEco-2, AqEco4, Road-2, and Road-7.

WILDLIFE: Unit includes average snow deer winter range (entire unit), some of which is also deep snow marten 

habitat/deer winter range (northern 1/2 of unit). Legacy standard and guideline applies in this VCU, however there 

are no requirements for this unit because it is less than 20 acres.

408 - Big Thorne Project Record of Decision Appendix 1
3026000

3000000

1.1L

2.1R 1. L

4

4.1R

2.2L

TRIB

1.2 R

1.1R

1.3R

2

2

2.1R

1

1965

1990

1965

1989

1995

179

564

175

176

178

A

A

B

B

C

C

D

D

E

E

F

F

G

G

H

H

I

I

J

J

10 10

9 9

8 8

7 7

6 6

5 5

4 4

3 3

2 2

1 1

Unit Number 178 ROD VCU: 

0 500

Feet

Past Harvest

(Year Origin)

Unsuitable Soils

Riparian Management

Area

Slope > 72%

Other Ownership

Old Growth Habitat LUD

Recreation River LUD

Scenic River LUD

State Highway

National Forest System Road - Open

National Forest System Road - Stored

Non-National Forest 

System Road

Proposed Reconstructed Road

Proposed System Road 

(reopened Decommissioned)

Proposed Temporary Road 

(reopened Decommissioned)

Proposed System Road

Proposed Temporary

Road

Old Growth

Helicopter

Shovel or Cable

Partial Cut

Young Growth

Systematic Strip Thin

Uniform Crown Thin

Class 1 Stream

Class 2 Stream

Class 3 Stream

Class 4 Stream

Lake

100’ Contour

Eagle Nest Buffer

Legacy

Visual Buffer

Deferred (within

Original Unit

Reconnaissance

Area)

583

RR

SR

R:\projects_2010\BigThorneEIS\maps\Unitcards\ROD.mxd 3 June 2013

Appendix 1 - Unit Cards - 409 Appendix 1
Unit 

Number: 179

Alternatives: ROD Total Unit 

Acres: 6.1

Prescription: Clearcut

VCU 

Number: 583

Yarding System:

Helicopter

Net Harvest

Volume 

(MBF): 190

LUD: Timber Production

Summary of Concerns, Responses, BMPs and Mitigation

SILVICULTURE: Existing Condition: Unit 179 has old-growth stand structure with a western hemlock overstory 

with Sitka spruce, western redcedar and Alaska-cedar intermixed. The dominant damage agents are heart rot, stem 

decay and patches of stem deformity (pistol butts). Alaska-cedar is generally poor quality and over-mature with high 

defect. Mistletoe is light and windthrow risk is moderate. All adjacent past harvest areas have regeneration at least 5 

feet tall, meeting NFMA requirements for no longer being considered openings.

Silvicultural Prescription: Even-age Management

This stand is mature with moderate levels of decay and defect resulting in a situation where stand growth is being 

offset by decay. Even-aged clear cutting is being prescribed to preclude or minimize the risk of windthrow post 

harvest, promote natural regeneration by opening up the canopy and minimize defect and disease in the future stand 

to the maximum extent possible.

The legacy standard and guide applies in this VCU. The potential opening is less than 20 acres. No legacy set-aside 

is required.

TIMBER/YARDING: Helicopter yarding to the proposed temporary road accessing Unit 178.

ENGINEERING/ROADS: This unit is utilizing the proposed temporary road of 1,600 feet accessing Unit 178. 

Approximately 1,200 feet of this road will be constructed over decommissioned road bed.

BOTANY: No Concerns

INVASIVE SPECIES: No Concerns

FISHERIES: Streams are tributaries to Ratz Creek

Stream#: 1 Class: III Flagging: O/W C- Type: HCM Concerns: none

Buffer (RMA): Class III for HCM- to the top of the side-slope break

Alternatives: ROD Buffer (RAW): no review needed Protection: Category B

Stream#: 1.3 Class: III Flagging: O/W C- Type: HCM Concerns: none

Buffer (RMA): Class III for HCM- to the top of the side-slope break 

Alternatives: ROD Buffer (RAW): no review needed Protection: Category B

All other streams in unit: Class: IV Flagging: G/W C- Type: HC or MM

Buffer (RMA): none Buffer (RAW): no review needed Protection: Category C

GEOLOGY/KARST: No Concerns

HERITAGE RESOURCES: This unit was investigated per the third amended interagency Programmatic Agreement 

(PA) for historic properties. As specified by the PA, any potential adverse effect on historic properties (if any) was 

mitigated and portions of the Area of Potential Effect will be monitored by a qualified heritage specialist during 

and/or after actual ground disturbance.

SCENERY: No Concerns

RECREATION: No Concerns, but unit abuts the Thorne River inventoried roadless area on the south.

SOILS/WETLANDS: Slopes range from 50 to 105%. All slopes greater than 72% are excluded from harvest. 

Approximately 6 acres were excluded due to colluvial activity, extremely steep slopes, and active and historic 

landslides. In the remainder of the unit, a minimum of partial suspension would meet soil and wetland resource 

concerns (R10 BMPS 12.5, 13.5, and 13.9 and National Core BMPs Plan-2, AqEco-2, AqEco-4, Veg-1, Veg-2, and 

Veg-5). No wetlands were identified.

WILDLIFE: Unit includes average snow deer winter range (entire unit). Legacy standard and guideline applies in 

this VCU, however there are no requirements for this unit because it is less than 20 acres.

410 - Big Thorne Project Record of Decision Appendix 1
3026000

3000000

2.1R 1. L

2.2L

1

TRIB

1.2 R

1.1R

2.1L

1.3R

2

2

2.1R

2

1

1965

1989

1989 1965

1995

179

180

178

A

A

B

B

C

C

D

D

E

E

F

F

G

G

H

H

I

I

J

J

10 10

9 9

8 8

7 7

6 6

5 5

4 4

3 3

2 2

1 1

Unit Number 179 ROD VCU: 

0 500

Feet

Past Harvest

(Year Origin)

Unsuitable Soils

Riparian Management

Area

Slope > 72%

Other Ownership

Old Growth Habitat LUD

Recreation River LUD

Scenic River LUD

State Highway

National Forest System Road - Open

National Forest System Road - Stored

Non-National Forest 

System Road

Proposed Reconstructed Road

Proposed System Road 

(reopened Decommissioned)

Proposed Temporary Road 

(reopened Decommissioned)

Proposed System Road

Proposed Temporary

Road

Old Growth

Helicopter

Shovel or Cable

Partial Cut

Young Growth

Systematic Strip Thin

Uniform Crown Thin

Class 1 Stream

Class 2 Stream

Class 3 Stream

Class 4 Stream

Lake

100’ Contour

Eagle Nest Buffer

Legacy

Visual Buffer

Deferred (within

Original Unit

Reconnaissance

Area)

583

RR

SR

R:\projects_2010\BigThorneEIS\maps\Unitcards\ROD.mxd 3 June 2013

Appendix 1 - Unit Cards - 411 Appendix 1
Unit 

Number: 180

Alternatives: ROD Total Unit 

Acres: 5.9

Prescription: Clearcut

VCU 

Number: 583

Yarding System:

Cable

Net Harvest

Volume 

(MBF): 120

LUD: Modified Landscape,

Timber Production

Summary of Concerns, Responses, BMPs and Mitigation

SILVICULTURE: Existing Condition: Unit 180 has old-growth stand structure with western hemlock, Sitka spruce, 

western redcedar and Alaska-cedar common in the overstory. The dominant defects are stem decay and stem 

deformity (pistol butts). Lower bole damage is common. Mistletoe is light and windthrow risk is moderate. All 

adjacent past harvest areas have regeneration at least 5 feet tall, meeting NFMA requirements for no longer being 

considered openings.

Silvicultural Prescription: Even-age Management - Clearcut

This stand is partially within the moderate SIO foreground area; however, this area only covers approximately 1 acre 

and is therefore not a concern. The rest of the unit has a low SIO. This stand is mature with moderate levels of decay 

and defect resulting in a situation where stand growth is being offset by decay. Even-aged clear cutting is being 

prescribed to preclude or minimize the risk of windthrow post-harvest, promote natural regeneration by opening up 

the canopy and minimize defect and disease in the future stand to the maximum extent possible.

The legacy standard and guide applies in this VCU. The potential opening is less than 20 acres. No legacy set-aside 

is required.

TIMBER/YARDING: Cable yarding to NFS road 3000000.

ENGINEERING/ROADS: No proposed road construction or reconstruction.

BOTANY: No Concerns

INVASIVE SPECIES: An orange hawkweed infestation is known along the NFS road 3000000. Monitoring is 

recommended to ensure that the infestation does not spread as a result of this project. 

FISHERIES: Streams are tributaries to Ratz Creek

Stream#: 1 Class: II, IV Flagging: B/W, G/W C- Type: HCO Concerns: none

Buffer (RMA): Class II for HCO- greater of 100 feet or the side-slope break. Class IV for HCO- none

Alternatives: ROD Buffer (RAW): no review needed Protection: Category A and C

Stream#: 2 Class: II, IV Flagging: B/W, G/W C- Type: MMO, HCO Concerns: none

Buffer (RMA): Class II for MMO- greater of 120 feet, flood plain, riparian vegetation or soils, or riparian 

associated with wetland fens. Class IV for HCO- none

Alternatives: ROD Buffer (RAW): no review needed Protection: Category A and C

Stream#: 2.1L Class: II, IV Flagging: B/W, G/W C- Type: HCO Concerns: none

Buffer (RMA): Class II for HCO- greater of 100 feet or the side-slope break Class IV for HCO- none

Alternatives: ROD Buffer (RAW): no review needed Protection: Category A and C

All other streams in unit: Class: IV Flagging: G/W C- Type: HC or MM 

Buffer (RMA): none Buffer (RAW): no review needed Protection: Category C

GEOLOGY/KARST: No Concerns

HERITAGE RESOURCES: This unit was investigated per the third amended interagency Programmatic Agreement 

(PA) for historic properties. As specified by the PA, any potential adverse effect on historic properties (if any) was 

mitigated and portions of the Area of Potential Effect will be monitored by a qualified heritage specialist during 

and/or after actual ground disturbance.

SCENERY: Unit is only 6 acres in size, but does occur along NFS Road 3000000. It consists mostly of Low SIO 

but includes 1 acre of Moderate SIO as well. Views are partially screened by riparian buffers which overlap road. 

Moderate SIO with Intermediate VAC have a typical opening size allowed by the Forest Plan of 15 to 40 acres. No 

concerns.

RECREATION: No Concerns; however, yarding activities will need to coordinate with recreational and other use of 

the mainline NFS Road 3000000.

SOILS/WETLANDS: Slopes range from 50 to 85%. All slopes greater than 72% are excluded from harvest. 

412 - Big Thorne Project Record of Decision Appendix 1
Approximately 14 acres were excluded due to colluvial activity, extremely steep slopes, and active and historic 

landslides. In the remainder of the unit, a minimum of partial suspension would meet soil and wetland resource 

concerns (R10 BMPS 12.5, 13.5, and 13.9 and National Core BMPs Plan-2, AqEco-2, AqEco-4, Veg-1, Veg-2, and 

Veg-5). No wetlands were identified.

WILDLIFE: Unit includes average snow deer winter range (entire unit), all of which is also deep snow marten 

habitat/deer winter range. Legacy standard and guideline applies in this VCU, however there are no requirements for 

this unit because it is less than 20 acres.

Appendix 1 - Unit Cards - 413 Appendix 1
3026000

3000000

1.3R

1.5R

14R. 1R

1

1.2 R

1.1R

2.1L

1.3R

1.4R

2

1

1990

1991

1991

1989

1989

1989

179

180

181

178

A

A

B

B

C

C

D

D

E

E

F

F

G

G

H

H

I

I

J

J

10 10

9 9

8 8

7 7

6 6

5 5

4 4

3 3

2 2

1 1

Unit Number 180 ROD VCU: 

0 500

Feet

Past Harvest

(Year Origin)

Unsuitable Soils

Riparian Management

Area

Slope > 72%

Other Ownership

Old Growth Habitat LUD

Recreation River LUD

Scenic River LUD

State Highway

National Forest System Road - Open

National Forest System Road - Stored

Non-National Forest 

System Road

Proposed Reconstructed Road

Proposed System Road 

(reopened Decommissioned)

Proposed Temporary Road 

(reopened Decommissioned)

Proposed System Road

Proposed Temporary

Road

Old Growth

Helicopter

Shovel or Cable

Partial Cut

Young Growth

Systematic Strip Thin

Uniform Crown Thin

Class 1 Stream

Class 2 Stream

Class 3 Stream

Class 4 Stream

Lake

100’ Contour

Eagle Nest Buffer

Legacy

Visual Buffer

Deferred (within

Original Unit

Reconnaissance

Area)

583

RR

SR

R:\projects_2010\BigThorneEIS\maps\Unitcards\ROD.mxd 3 June 2013

414 - Big Thorne Project Record of Decision Appendix 1
Unit 

Number: 181

Alternatives: ROD Total Unit 

Acres: 5.8

Prescription: 25% Removal

VCU 

Number: 583

Yarding System:

Helicopter

Net Harvest

Volume 

(MBF): 39

LUD: Modified Landscape

Summary of Concerns, Responses, BMPs and Mitigation

SILVICULTURE: Existing Condition: Unit 181 has old-growth stand structure with significant recent windthrow. 

The overstory consists of western hemlock, Sitka spruce and Alaska-cedar. Distribution is patchy due to windthrow. 

The dominant defect agent is weather related breakage. Light mistletoe infection is throughout. There are standing 

Sitka spruce and salvable Alaska- cedar in the unit that would carry logging costs. Windthrow risk is high. All 

adjacent past harvest areas have regeneration at least 5 feet tall, meeting NFMA requirements for no longer being 

considered openings.

Silvicultural Prescription: Uneven-age Management Single Tree Selection 

Maintain at least 75 percent of the setting pretreatment basal area, based on standing live tree total for the unit, 

uncut. Review the marking guides in the harvest prescription for this unit to obtain basal area by species allowances 

and other specific instructions. Review the introduction to the unit cards for general guidance. This system is not 

optimum for promoting timber production but is being prescribed due to the proximity of the unit to Little Lake and 

windthrow risk.

The legacy standard and guide applies in this VCU. Units 181 and 182 combine to form a potential opening of 65 

acres. This requires that approximately 19 acres of productive old growth representative of the overall composition 

of the planned harvest area be maintained within the combined 181/182 potential opening. Legacy required for the 

adjacent 182 opening is planned to coincide with unsuitable soil areas in unit 181. 

TIMBER/YARDING: Helicopter yarding on NFS road 3026000.

ENGINEERING/ROADS: No proposed road construction or reconstruction.

BOTANY: No Concerns

INVASIVE SPECIES: No Concerns

FISHERIES: Streams are tributaries to Little Lake

Stream#: 1.3R Class: II, IV Flagging: B/W, G/W C- Type: HCO Concerns: blowdown

Buffer (RMA): Class II for HCO- greater of 100 feet or to the top of the side-slope break. Class IV for HCO- none

Alternatives: ROD Buffer (RAW): no review needed Protection: Category A and C

Stream#: 1.5R Class: II, IV Flagging: B/W, G/W C- Type: HCO 

Concerns: blowdown and active erosion

Buffer (RMA): Class II for HCO- greater of 100 feet or to the top of the side-slope break Class IV for HCO- none 

Alternatives: ROD Buffer (RAW): no review needed Protection: Category A and C

Stream#: A1 Class: III Flagging: O/W C- Type: HCM Concerns: none 

Buffer (RMA): Class III for HCM- to the top of the side-slope break.

Alternatives: ROD Buffer (RAW): no review needed Protection: Category B 

Stream#: Lake-A1 (Little Lake) Class: I Flagging: B/W C- Type: L Concerns: none 

Buffer (RMA): Class I for Lake-1- greater of 100 horizontal feet or to the extent of the flood plain, riparian 

vegetation or soils, riparian associated wetland fens, or one site-potential tree height.

Alternatives: ROD Buffer (RAW): no review needed Protection: Category A

All other streams in unit: Class: IV Flagging: G/W C- Type: HC or MM 

Buffer (RMA): none Buffer (RAW): no review needed Protection: Category C

GEOLOGY/KARST: No Concerns

HERITAGE RESOURCES: This unit was investigated per the third amended interagency Programmatic Agreement 

(PA) for historic properties. As specified by the PA, any potential adverse effect on historic properties (if any) was 

mitigated and portions of the Area of Potential Effect will be monitored by a qualified heritage specialist during 

and/or after actual ground disturbance.

Appendix 1 - Unit Cards - 415 Appendix 1
SCENERY: Unit contains 6 acres of Low SIO. Even with Low VAC, typical unit openings allowed by the Forest 

Plan are 15 to 40 acres. No concerns.

RECREATION: No Concerns.

SOILS/WETLANDS: Slopes range from 55 to 100%. All slopes greater than 72% are excluded from harvest. 

Approximately 43 acres were excluded due to colluvial activity, extremely steep slopes, and active and historic 

landslides. In the remainder of the unit, a minimum of partial suspension would meet soil and wetland resource 

concerns (R10 BMPS 12.5, 13.5, and 13.9 and National Core BMPs Plan-2, AqEco-2, AqEco-4, Veg-1, Veg-2, and 

Veg-5). No wetlands were identified.

WILDLIFE: Unit includes average snow deer winter range (entire unit), some of which is also deep snow marten 

habitat/deer winter range (southern 1/2 of unit). Eagles and loons observed at Little Lake. Legacy standard and 

guideline applies in this VCU, however there are no requirements for this unit because it is less than 20 acres.

416 - Big Thorne Project Record of Decision Appendix 1
3026000

3000000

3026000

3026000

1

2

3

2

1 3. R

1.5R

14R.1R

1.4R

4

1990

1992

1990

1991

1991

1989

1989

1990

180

181

182

A

A

B

B

C

C

D

D

E

E

F

F

G

G

H

H

I

I

J

J

10 10

9 9

8 8

7 7

6 6

5 5

4 4

3 3

2 2

1 1

Unit Number 181 ROD VCU: 

0 500

Feet

Past Harvest

(Year Origin)

Unsuitable Soils

Riparian Management

Area

Slope > 72%

Other Ownership

Old Growth Habitat LUD

Recreation River LUD

Scenic River LUD

State Highway

National Forest System Road - Open

National Forest System Road - Stored

Non-National Forest 

System Road

Proposed Reconstructed Road

Proposed System Road 

(reopened Decommissioned)

Proposed Temporary Road 

(reopened Decommissioned)

Proposed System Road

Proposed Temporary

Road

Old Growth

Helicopter

Shovel or Cable

Partial Cut

Young Growth

Systematic Strip Thin

Uniform Crown Thin

Class 1 Stream

Class 2 Stream

Class 3 Stream

Class 4 Stream

Lake

100’ Contour

Eagle Nest Buffer

Legacy

Visual Buffer

Deferred (within

Original Unit

Reconnaissance

Area)

583

RR

SR

R:\projects_2010\BigThorneEIS\maps\Unitcards\ROD.mxd 3 June 2013

Appendix 1 - Unit Cards - 417 Appendix 1
Unit 

Number: 182

Alternatives: ROD Total Unit 

Acres: 33.8

Prescription: Clearcut

VCU 

Number: 583

Yarding System:

Cable, Shovel, Helictopter

Net Harvest

Volume 

(MBF): 697

LUD: Modified Landscape

Summary of Concerns, Responses, BMPs and Mitigation

SILVICULTURE: Existing Condition: Unit 182 has old-growth stand structure comprised of western hemlock, 

Sitka spruce and Alaska-cedar. The dominant defect is stem decay with an overall average defect rating of moderate. 

Windthrow risk is high. The unit rated low for mistletoe. All adjacent past harvest areas have regeneration at least 5 

feet tall, meeting NFMA requirements for no longer being considered openings.

Silvicultural Prescription: Even-age Management – Clearcut 

This stand is mature with moderate stem decay and defect resulting in a situation where stand growth is being offset 

by decay. Even-aged clear cutting is being prescribed to preclude or minimize the risk of windthrow post-harvest, 

promote natural regeneration by opening up the canopy and minimize defect and disease in the future stand to the 

maximum extent possible.

The legacy standard and guide applies in this VCU. Units 181 and 182 combine to form a potential opening of 65 

acres. This requires that approximately 19 acres of productive old growth representative of the overall composition 

of the planned harvest area be maintained within the combined 181/182 potential opening. Legacy required for the 

unit 182 opening is planned to coincide with unsuitable soil areas in unit 181.

TIMBER/YARDING: Shovel and cable yarding to the proposed temporary roads and NFS road 3026000.

ENGINEERING/ROADS: Unit is accessed by two proposed temporary roads, totaling 2,800 feet. Approximately 

1,500 feet of this road will be constructed over decommissioned road bed.

BOTANY: No Concerns

INVASIVE SPECIES: No Concerns

FISHERIES: Streams are tributaries to Ratz Creek

Stream#: 1.1L Class: II, III Flagging: B/W, O/W C- Type: MMS, HCM Concerns: none known

Buffer (RMA): Class II for MMS- greater of 120 feet, flood plain, riparian vegetation or soils, or riparian associated 

wetland fens. Class III for HCM- to the top of the side-slope break.

Alternatives: ROD5 Buffer (RAW): no review needed Protection: Category A and B

All other streams in unit: Class: IV Flagging: G/W C- Type: HC or MM 

Buffer (RMA): none Buffer (RAW): no review needed Protection: Category C

Temporary roads for Unit 182: One Class IV stream crossing. If any additional stream crossings are found, 

crossings structures and locations will be approved by USFS, in consultation with fisheries biologist or hydrologist, 

prior to construction (BMP 14.17). During construction of temporary roads, implement BMPs 12.17, 13.10, 13.11, 

13.6, 14.3, and 14.5.

GEOLOGY/KARST: No Concerns

HERITAGE RESOURCES: This unit was investigated per the third amended interagency Programmatic Agreement 

(PA) for historic properties. As specified by the PA, any potential adverse effect on historic properties (if any) was 

mitigated and portions of the Area of Potential Effect will be monitored by a qualified heritage specialist during 

and/or after actual ground disturbance.

SCENERY: No Concerns.

RECREATION: No Concerns.

SOILS/WETLANDS: Slopes range from 40 to 65%. Intermittent forested wetlands are found throughout the unit 

(R10 BMP 12.5 and National Core BMPs AqEco-2 and AqEco-4). The soils and wetlands are suitable for a 

minimum of partial suspension cable yarding, helicopter yarding, or shovel yarding and should follow R10 BMPs 

12.5, 13.2 and 13.9 and National Core BMPs Plan-2, Veg-2, Veg-4, Veg-5, and Veg-6. Follow shovel yarding 

guidelines outlined in the introductions to unit cards (R10 BMP 13.9 and National Core Veg-4).

The proposed temporary roads traverse about 2 acres of forested wetland. Wetland avoidance is not feasible due to 

existing road locations and slopes. Provide adequate cross drainage, remove drainage structures, and close road 

418 - Big Thorne Project Record of Decision Appendix 1
after harvest. Follow R10 BMPs12.5 and 14.9 and National Core BMPs AqEco-2, AqEco-4, Road-2, and Road-7.

WILDLIFE: Unit includes average snow deer winter range (northern and southern ends of unit). Legacy standard 

and guideline applies in this VCU; positioning of Legacy acres protects some deer winter range.

Appendix 1 - Unit Cards - 419 Appendix 1
3026000

3026000

3026000

.5R

14R.1R

1.3R

1.3R

3

2

1.1L. 2L

1.4R

1.2R.2R

1.1L .1L

1

1.2R.1R

.2R

1

4

1.1L

1989

1990

1992

1990

1991

1990

181

182

183

A

A

B

B

C

C

D

D

E

E

F

F

G

G

H

H

I

I

J

J

10 10

9 9

8 8

7 7

6 6

5 5

4 4

3 3

2 2

1 1

Unit Number 182 ROD VCU: 

0 500

Feet

Past Harvest

(Year Origin)

Unsuitable Soils

Riparian Management

Area

Slope > 72%

Other Ownership

Old Growth Habitat LUD

Recreation River LUD

Scenic River LUD

State Highway

National Forest System Road - Open

National Forest System Road - Stored

Non-National Forest 

System Road

Proposed Reconstructed Road

Proposed System Road 

(reopened Decommissioned)

Proposed Temporary Road 

(reopened Decommissioned)

Proposed System Road

Proposed Temporary

Road

Old Growth

Helicopter

Shovel or Cable

Partial Cut

Young Growth

Systematic Strip Thin

Uniform Crown Thin

Class 1 Stream

Class 2 Stream

Class 3 Stream

Class 4 Stream

Lake

100’ Contour

Eagle Nest Buffer

Legacy

Visual Buffer

Deferred (within

Original Unit

Reconnaissance

Area)

583

RR

SR

R:\projects_2010\BigThorneEIS\maps\Unitcards\ROD.mxd 3 June 2013

420 - Big Thorne Project Record of Decision Appendix 1
Unit 

Number: 183

Alternatives: ROD Total Unit 

Acres: 27.8

Prescription: Clearcut and 25% 

Removal

VCU 

Number: 583

Yarding System:

Shovel, Helicopter

Net Harvest

Volume 

(MBF): 574

LUD: Modified Landscape

Summary of Concerns, Responses, BMPs and Mitigation

SILVICULTURE: Existing Condition: This unit has old-growth stand structure with overstory species composition 

consisting of a mix between western hemlock, Alaska-cedar and mountain hemlock. The dominant defects are stem 

decay and weather breakage. The overall average defect rating is high. In general there are mixed values in overmature timber of overall low quality. Mistletoe is light. Windthrow risk is high. All adjacent past harvest areas have 

regeneration at least 5 feet tall, meeting NFMA requirements for no longer being considered openings.

Silvicultural Prescription: Even-age Management (Settings as shown on unit card maps) 

This stand is mature with moderate levels of decay and defect resulting in a situation where stand growth is being 

offset by decay. Even-aged clear cutting is being prescribed to preclude or minimize the risk of windthrow postharvest, promote natural regeneration by opening up the canopy and minimize defect and disease in the future stand 

to the maximum extent possible.

The legacy standard and guide applies in this VCU. Units 183 and 184 combine to form a potential opening of 111 

acres. This requires that approximately 33 acres of productive old growth representative of the overall composition 

of the planned harvest area be maintained within the combined 183 and 184 potential opening. Legacy is planned to 

coincide with areas of unsuitable soils. Units 183 and 184 have a combined mapped legacy of approximately 46 

acres. 

Silvicultural Prescription: Uneven-age Management Single Tree Selection (Settings as shown on unit card maps)

Maintain at least 75 percent of the setting pretreatment basal area, based on standing live tree total for the unit, 

uncut. Review the marking guides in the harvest prescription for this unit to obtain basal area by species allowances 

and other specific instructions. Review the introduction to the unit cards for general guidance. This system is not 

optimum for promoting timber production but is being prescribed to mitigate economic, wildlife and watershed 

concerns.

TIMBER/YARDING: Shovel and helicopter yarding to NFS road 3026000.

ENGINEERING/ROADS: No proposed road construction or reconstruction.

BOTANY: No Concerns

INVASIVE SPECIES: No Concerns

FISHERIES: Streams are tributaries to Ratz Creek

Stream#: 1.1R Class: II, III Flagging: B/W, O/W C- Type: HCM, HCL, AFH, HCD 

Concerns: blowdown and active erosion

Buffer (RMA): Class II for HCM- greater of 100 feet or to the top of the side-slope break. Class III for HCL, 

HCM, and HCD- to the top of the side-slope break. Class III for AFH- greater of 140 feet or active portion of the 

alluvial fan.

Alternatives: ROD Buffer (RAW): Buffer (RAW): no review needed Protection: Category A and B

Stream#: 1.1R.1L Class: III Flagging: O/W C- Type: HCO 

Concerns: blowdown and active erosion

Buffer (RMA): Class III for HCO- to the top of the side-slope break

Alternatives: ROD Buffer (RAW): no review needed Protection: Category B

Stream#: 1.2R Class: II, III Flagging: B/W, O/W C- Type: HCL 

Concerns: blowdown and active erosion

Buffer (RMA): Class II for HCL- greater of 100 feet or to the top of the side-slope break. Class III for HCL- to the 

top of the side-slope break.

Alternatives: ROD Buffer (RAW): no review needed Protection: Category A and B

Stream#: 1.2R.1R Class: II, IV Flagging: B/W, G/W C- Type: HCO

Appendix 1 - Unit Cards - 421 Appendix 1
Concerns: blowdown, active erosion, very steep side-lopes, very shallow soils, and exposed bedrock.

Buffer (RMA): Class II for HCO- greater of 100 feet or to the top of the side-slope break. Class IV for HCO- none 

Alternatives: ROD Buffer (RAW): no review needed Protection: Category A and C

Stream#: 1.2R.2R Class: III Flagging: O/W, G/W C- Type: HCL, AFH, HCD 

Concerns: blowdown, active erosion, very steep side-lopes, very shallow soils, and exposed bedrock.

Buffer (RMA): Class III for HCL and HCD- to the top of the side-slope break. Class III for AFH- greater of 140 

feet or active portion of the alluvial fan.

Alternatives: ROD Buffer (RAW): review required on east side Protection: Category B

Stream#: 1.2R.1L Class: III Flagging: O/W C- Type: HCD Concerns: none

Buffer (RMA): Class III for HCD- to the top of the side-slope break. 

Alternatives: ROD Buffer (RAW): no review needed Protection: Category B

Stream#: 1.3R Class: III Flagging: O/W C- Type: HCO

Concerns: blowdown, active erosion, very steep side-lopes, very shallow soils, and exposed bedrock. 

Buffer (RMA): Class III for HCO- to the top of the side-slope break.

Alternatives: ROD Buffer (RAW): review required on east side Protection: Category B

All other streams in unit: Class: IV Flagging: G/W C- Type: HC or MM 

Buffer (RMA): none Buffer (RAW): no review needed Protection: Category C

GEOLOGY/KARST: No Concerns

HERITAGE RESOURCES: This unit was investigated per the third amended interagency Programmatic Agreement 

(PA) for historic properties. As specified by the PA, any potential adverse effect on historic properties (if any) was 

mitigated and portions of the Area of Potential Effect will be monitored by a qualified heritage specialist during 

and/or after actual ground disturbance.

SCENERY: No Concerns.

RECREATION: The northern portions of the unit are within about 150 ft of the Ratz inventoried roadless area.

SOILS/WETLANDS: Slopes range from 10 to greater than 120%. Approximately 5 acres of slopes greater than 

72% are suitable for harvest with full suspension. About 24 acres were excluded from harvest due to very high 

landslide potential, colluvial activity, steep slopes, and unstable drainages. Small areas of forested wetlands were 

identified (R10 BMP 12.5 and National Core BMPs AqEco-2 and AqEco-4). In the remainder of the unit, the soils 

wetlands are suitable for a minimum of partial suspension cable yarding, helicopter yarding, or shovel yarding and 

should follow R10 BMPs 12.5, 13.2 and 13.9 and National Core BMPs Plan-2, Veg-2, Veg-4, Veg-5, and Veg-6. 

Follow shovel yarding guidelines outlined in the introductions to unit cards (R10 BMP 13.9 and National Core Veg4).

WILDLIFE: Unit includes average snow deer winter range (northern 1/2 of unit). Legacy standard and guideline 

applies in this VCU, see silviculture section. 

Old-growth Reserve (OGR) Boundary

OGR acres added along northern boundary of VCU to the north of unit.

422 - Big Thorne Project Record of Decision Appendix 1
3026000

3026100

1.1L.1L

1.1L.2L

1 4. R

1.5R 1.4R

1.2R 2. R.2R

1.2R.1L.1L

1.1R.1L.1L

1.2R.5L

1.2R.1R

1.3R

1.1R

1.1R.1L

1.2R.2 R

1.2R.2R.1R

1.1R

1

1.2R.2R

1.2R

1.2R.1L

1.1L

1989

1989

1990

184

183

A

A

B

B

C

C

D

D

E

E

F

F

G

G

H

H

I

I

J

J

10 10

9 9

8 8

7 7

6 6

5 5

4 4

3 3

2 2

1 1

Unit Number 183 ROD VCU: 

0 500

Feet

Past Harvest

(Year Origin)

Unsuitable Soils

Riparian Management

Area

Slope > 72%

Other Ownership

Old Growth Habitat LUD

Recreation River LUD

Scenic River LUD

State Highway

National Forest System Road - Open

National Forest System Road - Stored

Non-National Forest 

System Road

Proposed Reconstructed Road

Proposed System Road 

(reopened Decommissioned)

Proposed Temporary Road 

(reopened Decommissioned)

Proposed System Road

Proposed Temporary

Road

Old Growth

Helicopter

Shovel or Cable

Partial Cut

Young Growth

Systematic Strip Thin

Uniform Crown Thin

Class 1 Stream

Class 2 Stream

Class 3 Stream

Class 4 Stream

Lake

100’ Contour

Eagle Nest Buffer

Legacy

Visual Buffer

Deferred (within

Original Unit

Reconnaissance

Area)

583

RR

SR

R:\projects_2010\BigThorneEIS\maps\Unitcards\ROD.mxd 3 June 2013

Appendix 1 - Unit Cards - 423 Appendix 1
Unit 

Number: 184

Alternatives: ROD Total Unit 

Acres: 36.6

Prescription: Clearcut and 25% 

Removal 

VCU 

Number: 583

Yarding System:

Cable, Helicopter

Net Harvest

Volume 

(MBF): 1003

LUD: Modified Landscape

Summary of Concerns, Responses, BMPs and Mitigation

SILVICULTURE: Existing Condition: This unit has old-growth stand structure with overstory species composition 

consisting of a mix between western hemlock, Alaska-cedar and mountain hemlock. The dominant defects are stem 

decay and weather breakage. The overall average defect rating is moderate. Mistletoe is light. Windthrow risk is 

high. All adjacent past harvest areas have regeneration at least 5 feet tall, meeting NFMA requirements for no longer 

being considered openings.

Silvicultural Prescription: Even-age Management (Cable settings)

This stand is mature with moderate levels of decay and defect resulting in a situation where stand growth is being 

offset by decay. Even-aged clear cutting is being prescribed to preclude or minimize the risk of windthrow postharvest, promote natural regeneration by opening up the canopy and minimize defect and disease in the future stand 

to the maximum extent possible.

The legacy standard and guide applies in this VCU. Units 183 and 184 combine to form a potential opening of 111 

acres. This requires that approximately 33 acres of productive old growth representative of the overall composition 

of the planned harvest area be maintained within the combined 183 and 184 potential opening. Legacy is planned to 

coincide with areas of unsuitable soils. Units 183 and 184 have a combined mapped legacy of approximately 46 

acres. 

Silvicultural Prescription: Uneven-age Management Single Tree Selection (Helicopter settings)

Maintain at least 75 percent of the setting pretreatment basal area, based on standing live tree total for the unit, 

uncut. Review the marking guides in the harvest prescription for this unit to obtain basal area by species allowances 

and other specific instructions. Review the introduction to the unit cards for general guidance. This system is not 

optimum for promoting timber production but is being prescribed to mitigate economic, wildlife and watershed 

concerns.

TIMBER/YARDING: Cable and helicopter yarding to NFS road 3026100.

ENGINEERING/ROADS: Unit is accessed by reconstruction of NFS road 3026100, totaling 1,800 feet. See road 

card for information on NFS road.

BOTANY: No Concerns

INVASIVE SPECIES: No Concerns

FISHERIES: Streams are tributaries to Ratz Creek

Stream#: 1.1R Class: III Flagging: O/W C- Type: HCM Concerns: blowdown and active erosion

Buffer (RMA): Class III for HCM- to the top of the side-slope break

Alternatives: ROD Buffer (RAW): no review needed Protection: Category B

All other streams in unit: Class: IV Flagging: G/W C- Type: HC or MM 

Buffer (RMA): none Buffer (RAW): no review needed. Protection: Category C

GEOLOGY/KARST: No Concerns

HERITAGE RESOURCES: This unit was investigated per the third amended interagency Programmatic Agreement 

(PA) for historic properties. As specified by the PA, any potential adverse effect on historic properties (if any) was 

mitigated and portions of the Area of Potential Effect will be monitored by a qualified heritage specialist during 

and/or after actual ground disturbance.

SCENERY: No Concerns.

RECREATION: No Concerns.

SOILS/WETLANDS: Slopes range from 10 to greater than 120%. All slopes greater than 72% are excluded from 

harvest. About 24 acres were excluded from harvest due to very high landslide potential, colluvial activity, steep 

slopes, and unstable drainages. Small areas of forested wetlands were identified (R10 BMP 12.5 and National Core 

BMPs AqEco-2 and AqEco-4). In the remainder of the unit, the soils wetlands are suitable for a minimum of partial 

suspension cable yarding, helicopter yarding, or shovel yarding and should follow R10 BMPs 12.5, 13.2 and 13.9 

424 - Big Thorne Project Record of Decision Appendix 1
and National Core BMPs Plan-2, Veg-2, Veg-4, Veg-5, and Veg-6. Follow shovel yarding guidelines outlined in the 

introductions to unit cards (R10 BMP 13.9 and National Core Veg-4).

WILDLIFE: Unit includes average snow deer winter range (entire unit except southern edge). Legacy standard and 

guideline applies in this VCU, see silviculture section. 

Old-growth Reserve (OGR) Boundary

OGR acres added along northern boundary of VCU to the north of unit.

Appendix 1 - Unit Cards - 425 Appendix 1
3026100

3026000

3026100

1.2R 2. R.2R

1.1R.1L.1L

1.2R.5L

1.2R.1R

1.1R

1.2R.1L

1.1R.1L

1.2R.2 R

2

1

1.2R.2R.1R

1.1R

1.2R.2R

1.2R

1989

1989

1993

1964

184 183

A

A

B

B

C

C

D

D

E

E

F

F

G

G

H

H

I

I

J

J

10 10

9 9

8 8

7 7

6 6

5 5

4 4

3 3

2 2

1 1

Unit Number 184 ROD VCU: 

0 500

Feet

Past Harvest

(Year Origin)

Unsuitable Soils

Riparian Management

Area

Slope > 72%

Other Ownership

Old Growth Habitat LUD

Recreation River LUD

Scenic River LUD

State Highway

National Forest System Road - Open

National Forest System Road - Stored

Non-National Forest 

System Road

Proposed Reconstructed Road

Proposed System Road 

(reopened Decommissioned)

Proposed Temporary Road 

(reopened Decommissioned)

Proposed System Road

Proposed Temporary

Road

Old Growth

Helicopter

Shovel or Cable

Partial Cut

Young Growth

Systematic Strip Thin

Uniform Crown Thin

Class 1 Stream

Class 2 Stream

Class 3 Stream

Class 4 Stream

Lake

100’ Contour

Eagle Nest Buffer

Legacy

Visual Buffer

Deferred (within

Original Unit

Reconnaissance

Area)

583

RR

SR

R:\projects_2010\BigThorneEIS\maps\Unitcards\ROD.mxd 3 June 2013

426 - Big Thorne Project Record of Decision Appendix 1
Unit 

Number: 185

Alternatives: ROD Total Unit 

Acres: 20.4

Prescription: Clearcut

VCU 

Number: 583

Yarding System:

Cable, Shovel, Helicopter

Net Harvest

Volume 

(MBF): 333

LUD: Modified Landscape

Summary of Concerns, Responses, BMPs and Mitigation

SILVICULTURE: Existing Condition: This unit has old-growth stand structure. The overstory consists primarily of 

western hemlock, mountain hemlock, Sitka spruce and western redcedar. The dominant defects are stem form and 

stem decay. Mistletoe is light. Windthrow risk is moderate. All adjacent past harvest areas have regeneration at 

least 5 feet tall, meeting NFMA requirements for no longer being considered openings.

Silvicultural Prescription: Even-age Management – Clearcut 

This stand is mature with moderate stem decay and defect resulting in a situation where stand growth is being offset 

by decay. Even-aged clear cutting is being prescribed to preclude or minimize the risk of windthrow post harvest, 

promote natural regeneration by opening up the canopy and minimize defect and disease in the future stand to the 

maximum extent possible.

The legacy standard and guide applies in this VCU. This requires that approximately 9 acres of productive old 

growth representative of the overall composition of the planned harvest area be maintained. Legacy is planned to 

coincide with areas with soils concerns. Total mapped legacy is approximately 10 acres. 

TIMBER/YARDING: Shovel and cable yarding to proposed NFS road 3025550.

ENGINEERING/ROADS: Unit is accessed by proposed NFS road 3025550, totaling 2,300 feet. See road card for 

information on NFS road.

BOTANY: No Concerns

INVASIVE SPECIES: No Concerns

FISHERIES: Streams are tributaries to Ratz Creek

Stream#: 1.1R Class: III, IV Flagging: O/W, G/W C- Type: HCD, HCO 

Concerns: blowdown and active erosion

Buffer (RMA): Class III for HCD- to the top of the side-slope break. Class IV for HCO- none 

Alternatives: ROD Buffer (RAW): no review needed Protection: Category B and C

All other streams in unit: Class: IV Flagging: G/W C- Type: HC or MM 

Buffer (RMA): none Buffer (RAW): no review needed Protection: Category C

GEOLOGY/KARST: No Concerns

HERITAGE RESOURCES: This unit was investigated per the third amended interagency Programmatic Agreement 

(PA) for historic properties. As specified by the PA, any potential adverse effect on historic properties (if any) was 

mitigated and portions of the Area of Potential Effect will be monitored by a qualified heritage specialist during 

and/or after actual ground disturbance.

SCENERY: No Concerns.

RECREATION: No Concerns, but the Ratz inventoried roadless area is within about 250 ft of the northwest border.

SOILS/WETLANDS: Slopes range from 35 to greater than 72%. About 1⁄2 of an acre of slopes greater than 72% is 

suitable for harvest with partial suspension. Approximately 8 acres were excluded due to colluvial activity, active 

landslides, and steep slopes. No wetlands were identified. In the remainder of the unit, the soils and wetlands are 

suitable for a minimum of partial suspension cable yarding and helicopter yarding and should follow R10 BMPs 

12.5, 13.2 and 13.9 and National Core BMPs Plan-2, Veg-2, Veg-5, and Veg-6.

WILDLIFE: Unit includes average snow deer winter range (entire unit except western edge). Legacy standard and 

guideline applies in this VCU.

Old-growth Reserve (OGR) Boundary

OGR acres added along northern boundary of VCU to the north of unit.

Appendix 1 - Unit Cards - 427 Appendix 1
3025000

3026100

3025500

3025500

3025550

1.2L

1.3L

1.1L

1.4L

1.2R

1.1R

1

1994

1994

1993

1964

2006 1994

184

185

186

A

A

B

B

C

C

D

D

E

E

F

F

G

G

H

H

I

I

J

J

10 10

9 9

8 8

7 7

6 6

5 5

4 4

3 3

2 2

1 1

Unit Number 185 ROD VCU: 

0 500

Feet

Past Harvest

(Year Origin)

Unsuitable Soils

Riparian Management

Area

Slope > 72%

Other Ownership

Old Growth Habitat LUD

Recreation River LUD

Scenic River LUD

State Highway

National Forest System Road - Open

National Forest System Road - Stored

Non-National Forest 

System Road

Proposed Reconstructed Road

Proposed System Road 

(reopened Decommissioned)

Proposed Temporary Road 

(reopened Decommissioned)

Proposed System Road

Proposed Temporary

Road

Old Growth

Helicopter

Shovel or Cable

Partial Cut

Young Growth

Systematic Strip Thin

Uniform Crown Thin

Class 1 Stream

Class 2 Stream

Class 3 Stream

Class 4 Stream

Lake

100’ Contour

Eagle Nest Buffer

Legacy

Visual Buffer

Deferred (within

Original Unit

Reconnaissance

Area)

583

RR

SR

R:\projects_2010\BigThorneEIS\maps\Unitcards\ROD.mxd 3 June 2013

428 - Big Thorne Project Record of Decision Appendix 1
Unit 

Number: 186

Alternatives: ROD Total Unit 

Acres: 7.5

Prescription: Clearcut

 

VCU 

Number: 583

Yarding System:

Cable

Net Harvest

Volume 

(MBF): 175

LUD: Modified Landscape

Summary of Concerns, Responses, BMPs and Mitigation

SILVICULTURE: Existing Condition: This old growth structured unit consists of western hemlock and scattered 

Sitka spruce with mountain hemlock and Alaska-cedar in the southwest. The average defect rating is light to 

moderate. Windthrow risk is high. All adjacent past harvest areas have regeneration at least 5 feet tall, meeting 

NFMA requirements for no longer being considered openings.

Silvicultural Prescription: Even-age Management - Clearcut

This stand is mature with moderate levels of decay and defect resulting in a situation where stand growth is being 

offset by decay. Even-aged clear cutting is being prescribed to preclude or minimize the risk of windthrow postharvest, promote natural regeneration by opening up the canopy, and minimize defect and disease in the future stand 

to the maximum extent possible.

The legacy standard and guide applies in this VCU. Units 186 and 460 combine to form a potential opening of 24 

acres. This requires that approximately 7 acres of productive old growth representative of the overall composition of 

the planned harvest area be maintained within the combined 186 and 460 potential opening. Legacy was planned to 

coincide with areas of lower value timber and unsuitable soils. Units 186 and 460 have a combined mapped legacy 

of approximately 8 acres. No legacy set-aside is required in these Alternatives. 

TIMBER/YARDING: Cable yarding to NFS road 3025500.

ENGINEERING/ROADS: No proposed road construction or reconstruction.

BOTANY: No Concerns

INVASIVE SPECIES: No Concerns

FISHERIES: Streams are tributaries to Ratz Harbor

All streams in unit: Class: IV Flagging: G/W C- Type: HC or MM

Buffer (RMA): none Buffer (RAW): no review needed Protection: Category C

GEOLOGY/KARST: No Concerns

HERITAGE RESOURCES: This unit was investigated per the third amended interagency Programmatic Agreement 

(PA) for historic properties. As specified by the PA, any potential adverse effect on historic properties (if any) was 

mitigated and portions of the Area of Potential Effect will be monitored by a qualified heritage specialist during 

and/or after actual ground disturbance.

SCENERY: No Concerns.

RECREATION: No Concerns.

SOILS/WETLANDS: Slopes are gentle throughout the existing unit. Slopes greater than 72% were identified and 

excluded from harvest consideration. No wetlands were identified. The soils and wetlands are suitable with a 

minimum of partial suspension cable yarding or shovel yarding and should follow R10 BMPs 12.5, 13.2 and 13.9 

and National Core BMPs Plan-2, Veg-2, Veg-4, Veg-5, and Veg-6. Follow shovel yarding guidelines outlined in the 

introductions to unit cards (R10 BMP 13.9 and National Core Veg-4).

WILDLIFE: Unit includes average snow deer winter range (entire unit). Legacy standard and guideline applies in 

this VCU, see silviculture section.

Old-growth Reserve (OGR) Boundary

OGR acres added along northern boundary of VCU so OGR acres adjacent to unit to the north.

Appendix 1 - Unit Cards - 429 Appendix 1
3025520

3025000

3025500

3025550

1.2L

2

1.3L

1.1L

1.4L

1.2R

1.1R

1

1.1R

1

1994

1994

1964

2006

1994

185

186

A

A

B

B

C

C

D

D

E

E

F

F

G

G

H

H

I

I

J

J

10 10

9 9

8 8

7 7

6 6

5 5

4 4

3 3

2 2

1 1

Unit Number 186 ROD VCU: 

0 500

Feet

Past Harvest

(Year Origin)

Unsuitable Soils

Riparian Management

Area

Slope > 72%

Other Ownership

Old Growth Habitat LUD

Recreation River LUD

Scenic River LUD

State Highway

National Forest System Road - Open

National Forest System Road - Stored

Non-National Forest 

System Road

Proposed Reconstructed Road

Proposed System Road 

(reopened Decommissioned)

Proposed Temporary Road 

(reopened Decommissioned)

Proposed System Road

Proposed Temporary

Road

Old Growth

Helicopter

Shovel or Cable

Partial Cut

Young Growth

Systematic Strip Thin

Uniform Crown Thin

Class 1 Stream

Class 2 Stream

Class 3 Stream

Class 4 Stream

Lake

100’ Contour

Eagle Nest Buffer

Legacy

Visual Buffer

Deferred (within

Original Unit

Reconnaissance

Area)

583

RR

SR

R:\projects_2010\BigThorneEIS\maps\Unitcards\ROD.mxd 3 June 2013

430 - Big Thorne Project Record of Decision Appendix 1
Unit 

Number: 187

Alternatives: ROD Total Unit 

Acres: 3.2

Prescription: Clearcut

VCU 

Number: 581, 583

Yarding System:

Cable, Helicopter

Net Harvest

Volume 

(MBF): 92

LUD: Modified Landscape

Summary of Concerns, Responses, BMPs and Mitigation

SILVICULTURE: Existing Condition: This unit has old-growth stand structure with mature timber exhibiting static 

growth. The overstory consists of Alaska-cedar and western hemlock along with scattered Sitka spruce. The 

dominant damage is mainly crook and sweep. The overall defect rating for the entire unit is moderate. Smaller 

diameter Alaska-cedar dominates the entire unit. Mistletoe is light. Windthrow risk is high. All adjacent past 

harvest areas have regeneration at least 5 feet tall, meeting NFMA requirements for no longer being considered 

openings.

Silvicultural Prescription: Even-age Management - Clearcut

This stand is mature with moderate levels of decay and defect resulting in a situation where stand growth is being 

offset by decay. Even-aged clear cutting is being prescribed to preclude or minimize the risk of windthrow postharvest, promote natural regeneration by opening up the canopy, and minimize defect and disease in the future stand 

to the maximum extent possible.

The legacy standard and guide applies in these VCU's; however, the potential opening is less than 20 acres. No 

legacy set-aside is required.

TIMBER/YARDING: Cable yarding to the proposed temporary road.

ENGINEERING/ROADS: Unit is accessed by a proposed temporary road of 600 feet.

BOTANY: No Concerns

INVASIVE SPECIES: No Concerns

FISHERIES: No streams found in unit at time of survey. If streams found during implementations a fish biologist 

would be notified and appropriate protections would be applied. 

Temporary roads for Unit 187: No known stream crossings. If any stream crossings are found, crossings structures 

and locations will be approved by USFS, in consultation with fisheries biologist or hydrologist, prior to construction 

(BMP 14.17). During construction of temporary roads, implement BMPs 12.17, 13.10, 13.11, 13.6, 14.3, and 14.5.

GEOLOGY/KARST: No Concerns

HERITAGE RESOURCES: This unit was investigated per the third amended interagency Programmatic Agreement 

(PA) for historic properties. As specified by the PA, any potential adverse effect on historic properties (if any) was 

mitigated and portions of the Area of Potential Effect will be monitored by a qualified heritage specialist during 

and/or after actual ground disturbance.

SCENERY: No Concerns.

RECREATION: No Concerns.

SOILS/WETLANDS: Slopes range from 40 to 100%. All slopes greater than 72% are excluded from harvest. 

Approximately 1 acre was excluded due to steep slopes, high landslide potential, and colluvial activity. The 

remainder of the unit, the soils and wetlands are suitable for a minimum of partial suspension cable yarding, and 

helicopter yarding should follow R10 BMPs 12.5, 13.2 and 13.9 and National Core BMPs Plan-2, Veg-2, Veg-5, 

and Veg-6. Intermittent patches of forested wetland are located on the gentle slopes (R10 BMP 12.5 and National 

Core BMPs AqEco-2 and AqEco-4).

The proposed temporary road does not cross any wetland. Provide adequate cross drainage, remove drainage 

structures, and close road after harvest. Follow R10 BMPs12.5 and 14.9 and National Core BMPs AqEco-2, AqEco4, Road-2, and Road-7.

WILDLIFE: Unit includes average snow deer winter range (southern 1/2 of unit). Legacy standard and guideline 

applies in this VCU, however there are no requirements for this unit because it is less than 20 acres.

Appendix 1 - Unit Cards - 431 Appendix 1
3000000

3026000

20

1

2

21

3

1

1971

1990

1971 1992

1972

187

189

A

A

B

B

C

C

D

D

E

E

F

F

G

G

H

H

I

I

J

J

10 10

9 9

8 8

7 7

6 6

5 5

4 4

3 3

2 2

1 1

Unit Number 187 ROD VCU: 

0 500

Feet

Past Harvest

(Year Origin)

Unsuitable Soils

Riparian Management

Area

Slope > 72%

Other Ownership

Old Growth Habitat LUD

Recreation River LUD

Scenic River LUD

State Highway

National Forest System Road - Open

National Forest System Road - Stored

Non-National Forest 

System Road

Proposed Reconstructed Road

Proposed System Road 

(reopened Decommissioned)

Proposed Temporary Road 

(reopened Decommissioned)

Proposed System Road

Proposed Temporary

Road

Old Growth

Helicopter

Shovel or Cable

Partial Cut

Young Growth

Systematic Strip Thin

Uniform Crown Thin

Class 1 Stream

Class 2 Stream

Class 3 Stream

Class 4 Stream

Lake

100’ Contour

Eagle Nest Buffer

Legacy

Visual Buffer

Deferred (within

Original Unit

Reconnaissance

Area)

581,583

RR

SR

R:\projects_2010\BigThorneEIS\maps\Unitcards\ROD.mxd 3 June 2013

432 - Big Thorne Project Record of Decision Appendix 1
Unit 

Number: 189 

Alternatives: ROD Total Unit 

Acres: 28.8 

Prescription: Clearcut and 25% 

Removal 

VCU 

Number: 581

Yarding System:

Helicopter

Net Harvest

Volume 

(MBF): 597

LUD: Modified Landscape, 

Timber Production

Summary of Concerns, Responses, BMPs and Mitigation

SILVICULTURE: Existing Condition: Unit 189 is old growth consisting primarily of western hemlock as the 

dominant species along with Sitka spruce as a secondary component. Alaska-cedar is present in lesser amounts 

more so at the highest elevations. The average defect rating is considered to be moderate. Mistletoe is light. 

Windthrow risk is high. All adjacent past harvest areas have regeneration at least 5 feet tall, meeting NFMA 

requirements for no longer being considered openings.

Silvicultural Prescription: Even-age Management - Clearcut (Settings as shown on the unit card maps) 

This stand is mature with moderate stem decay and defect resulting in a situation where stand growth is being offset 

by decay. Even-aged clear cutting is being prescribed to preclude or minimize the risk of windthrow post harvest, 

promote natural regeneration by opening up the canopy and minimize defect and disease in the future stand to the 

maximum extent possible.

The legacy standard and guide applies in this VCU. This requires that approximately 36 acres of productive old 

growth representative of the overall composition of the planned harvest area be maintained. Legacy is planned to 

coincide with areas of unsuitable soils. Total mapped legacy is approximately 89 acres due entirely to soil concerns. 

 

Silvicultural Prescription: Uneven-age Management Single Tree Selection (Settings as shown on the unit card maps) 

Maintain at least 75 percent of the setting pretreatment basal area, based on standing live tree total for the unit, 

uncut. Review the marking guides in the harvest prescription for this unit to obtain basal area by species allowances 

and other specific instructions. Review the introduction to the unit cards for general guidance. The uneven-aged 

single tree selection regeneration method is being prescribed for parts of this unit to reduce windthrow risk along 

class III streams and to protect soil resources. The system is not optimum for timber production. 

TIMBER/YARDING: Helicopter yarding to proposed temporary road accessing Unit 187 and NFS road 3000000.

ENGINEERING/ROADS: This unit is utilizing landings on the proposed temporary road of 600 feet accessing Unit 

187. See Unit 187 unit card for details.

BOTANY: No Concerns

INVASIVE SPECIES: No Concerns

FISHERIES: Streams are tributaries to Luck Creek

Stream#: 1 Class: III, IV Flagging: O/W, G/W C- Type: HCM, HCD 

Concerns: blowdown and active erosion

Buffer (RMA): Class III for HCM- to the top of the side-slope break. Class IV for HCD- none

Alternatives: ROD Buffer (RAW): no review needed Protection: Category B and C

Stream#: 2 Class: III, IV Flagging: O/W, G/W C- Type: HCM, HCO 

Concerns: blowdown and active erosion

Buffer (RMA): Class III for HCM- to the top of the side-slope break. Class IV for HCO- none 

Alternatives: ROD Buffer (RAW): no review needed Protection: Category B and C

Stream#: 3 Class: III Flagging: O/W C- Type: HCM Concerns: blowdown and active erosion

Buffer (RMA): Class III for HCM- to the top of the side-slope break. 

Alternatives: ROD Buffer (RAW): no review needed Protection: Category B

Stream#: 1.1L.4L/15 Class: III, IV Flagging: O/W, G/W C- Type: HCM, HCO 

Concerns: active erosion and unstable banks

Buffer (RMA): Class III for HCM- to the top of the side-slope break. Class IV for HCO- none

Alternatives: ROD Buffer (RAW): no review needed Protection: Category B and C

Appendix 1 - Unit Cards - 433 Appendix 1
Stream#: 1.1L.7L/18 Class: III, IV Flagging: O/W, G/W C- Type: HCM, HCD

Concerns: active erosion and unstable banks

Buffer (RMA): Class III for HCM- to the top of the side-slope break. Class IV for HCD- none

Alternatives: ROD Buffer (RAW): no review needed Protection: Category B and C

All other streams in unit: Class: IV Flagging: G/W C- Type: HC or MM 

Buffer (RMA): none Buffer (RAW): no review needed Protection: Category C

GEOLOGY/KARST: No Concerns

HERITAGE RESOURCES: This unit was investigated per the third amended interagency Programmatic Agreement 

(PA) for historic properties. As specified by the PA, any potential adverse effect on historic properties (if any) was 

mitigated and portions of the Area of Potential Effect will be monitored by a qualified heritage specialist during 

and/or after actual ground disturbance.

SCENERY: No Concerns.

RECREATION: Most of the northeast border of unit borders the Ratz inventoried roadless area.

SOILS/WETLANDS: Slopes range from 30 to 105%. All slopes greater than 72% are excluded from harvest. 

Approximately 81 acres were excluded due to steep slopes, hollow topography, active and historic landslides, and 

colluvial activity. The remainder of the unit, a minimum of full suspension would meet soil and wetland resource 

concerns (R10 BMPS 12.5, 13.5, and 13.9 and National Core BMPs Plan-2, AqEco-2, AqEco-4, Veg-1, Veg-2, and 

Veg-5). No wetlands were identified in the unit.

WILDLIFE: Unit includes average snow deer winter range (southern 1/2 of unit). Legacy standard and guideline 

applies in this VCU.

434 - Big Thorne Project Record of Decision Appendix 1
3000000

3000305

3000330

1.1L.2L

1.1L.4L

3

1.1L.1R

1.1L.5L

1.1L.2

1

L

.AL

1.1L7L

1

1.1L

1

1.1L.7L

1

1.1L.6L.1R

2

2 1

15

1.1L.5L

1. 1L. 6 L

16

1.1L

1.1L.8L

21.1L

1.1L.3L

1.1L.4L.1L

1. AL

17.1L

18

1.1L.1 L

21

17

20

19

1 1.1L.1L.2R .1L.1L.1L

1.AL.1L

1.1L.7L

2006

1969

1971

1970

1995 1995

1969

1973 1971

1972

189

581

582

187

A

A

B

B

C

C

D

D

E

E

F

F

G

G

H

H

I

I

J

J

10 10

9 9

8 8

7 7

6 6

5 5

4 4

3 3

2 2

1 1

Unit Number 189 ROD VCU: 

0 500

Feet

Past Harvest

(Year Origin)

Unsuitable Soils

Riparian Management

Area

Slope > 72%

Other Ownership

Old Growth Habitat LUD

Recreation River LUD

Scenic River LUD

State Highway

National Forest System Road - Open

National Forest System Road - Stored

Non-National Forest 

System Road

Proposed Reconstructed Road

Proposed System Road 

(reopened Decommissioned)

Proposed Temporary Road 

(reopened Decommissioned)

Proposed System Road

Proposed Temporary

Road

Old Growth

Helicopter

Shovel or Cable

Partial Cut

Young Growth

Systematic Strip Thin

Uniform Crown Thin

Class 1 Stream

Class 2 Stream

Class 3 Stream

Class 4 Stream

Lake

100’ Contour

Eagle Nest Buffer

Legacy

Visual Buffer

Deferred (within

Original Unit

Reconnaissance

Area)

581

RR

SR

R:\projects_2010\BigThorneEIS\maps\Unitcards\ROD.mxd 3 June 2013

Appendix 1 - Unit Cards - 435 Appendix 1
Unit 

Number: 190

Alternatives: ROD Total Unit 

Acres: 22.7

Prescription: Clearcut

VCU 

Number: 581

Yarding System:

Cable, Helicopter

Net Harvest

Volume 

(MBF): 742

LUD: Modified Landscape

Summary of Concerns, Responses, BMPs and Mitigation

SILVICULTURE: Existing Condition: Unit 190 is old-growth with the overstory consisting of western hemlock 

with variable amounts of Sitka spruce, western redcedar and Alaska-cedar. Stem decay is the primary damage. 

Mistletoe is light. Windthrow risk is high. An even-age harvest with origin in 2000 is along the northern edge of 

these units, this past harvest marginally meets green-up requirements (14 acres). A two-aged clearcut with origin in 

2006 is adjacent to the southwest boundary (56 acres). There has been heavy blowdown in this unit since harvest. 

This blowdown has continued across the boundary into unit 190. A partial cut timber harvest was conducted in the 

setting along the northwestern corner of this unit in 2010. No modifications to the size of unit 190 are needed to 

meet NFMA requirements for opening size. The combined acreage of these past harvest openings with the planned 

acreage of this harvest will not exceed 100 acres.

Silvicultural Prescription: Even-age Management – Clearcut 

This stand is mature with moderate to high stem decay and defect resulting in a situation where stand growth is 

being offset by decay. Even-aged clear cutting is being prescribed to preclude or minimize the risk of windthrow 

post-harvest, promote natural regeneration by opening up the canopy and minimize defect and disease in the future 

stand to the maximum extent possible.

The legacy standard and guide applies in this VCU. This requires that approximately 10 acres of productive old 

growth representative of the overall composition of the planned harvest area be maintained. Legacy is planned to 

coincide with areas that were unsuitable for harvest due to karst concerns and RMA's. Total mapped legacy is 

approximately 12 acres. 

TIMBER/YARDING: Cable settings yard to the proposed temporary road and NFS road 3030110. Helicopter 

settings yard to NFS road 3030110.

ENGINEERING/ROADS: Unit is accessed by a proposed temporary road totaling 2,100 feet. Approximately 500 

feet of this road will be constructed over decommissioned road bed.

BOTANY: No Concerns

INVASIVE SPECIES: No Concerns

FISHERIES: Streams are tributaries to Luck Lake

Stream#: LR1 Class: III, IV Flagging: O/W, G/W C- Type: HCM, HCO Concerns: none

Buffer (RMA): Class III for HCM- to the top of the side-slope break. Class IV for HCO- none 

Alternatives: ROD Buffer (RAW): no review needed Protection: Category B and C

Stream#: 1 Class: III Flagging: O/W C- Type: HCD, HCM Concerns: none

Buffer (RMA): Class III for HCM- to the top of the side-slope break. 

Alternatives: ROD Buffer (RAW): no review needed Protection: Category B

All other streams in unit: Class: IV Flagging: G/W C- Type: HC or MM 

Buffer (RMA): none Buffer (RAW): no review needed Protection: Category C

Temporary roads for Unit 190: No known stream crossings. If any stream crossings are found, crossings structures 

and locations will be approved by USFS, in consultation with fisheries biologist or hydrologist, prior to construction 

(BMP 14.17). During construction of temporary roads implement BMPs 12.17, 13.10, 13.11, 13.16, 14.3, and 14.5.

GEOLOGY/KARST: No Concerns

HERITAGE RESOURCES: This unit was investigated per the third amended interagency Programmatic Agreement 

(PA) for historic properties. As specified by the PA, any potential adverse effect on historic properties (if any) was 

mitigated and portions of the Area of Potential Effect will be monitored by a qualified heritage specialist during 

and/or after actual ground disturbance.

SCENERY: No Concerns.

RECREATION: No Concerns.

436 - Big Thorne Project Record of Decision Appendix 1
SOILS/WETLANDS: Slopes range from gentle to 75%. About 5 acres of slopes greater than 72% are suitable for 

harvest with partial suspension. No wetlands were identified. The soils and wetlands are suitable for a minimum of 

partial suspension cable yarding and helicopter yarding and should follow R10 BMPs 12.5, 13.2 and 13.9 and 

National Core BMPs Plan-2, Veg-2, Veg-5, and Veg-6. 

The proposed temporary road does not cross any wetland. Provide adequate cross drainage, remove drainage 

structures, and close road after harvest. Follow R10 BMPs12.5 and 14.9 and National Core BMPs AqEco-2, AqEco4, Road-2, and Road-7.

WILDLIFE: Unit includes average snow deer winter range (entire unit except southern edge). Legacy standard and 

guideline applies in this VCU, see silviculture section.

Appendix 1 - Unit Cards - 437 Appendix 1
3030110

3030110

1. 2L 1.2L

1

LR1

1

2004

1993

1969

1969

2006

1996 1993

1969

2006

2010

190

A

A

B

B

C

C

D

D

E

E

F

F

G

G

H

H

I

I

J

J

10 10

9 9

8 8

7 7

6 6

5 5

4 4

3 3

2 2

1 1

Unit Number 190 ROD VCU: 

0 500

Feet

Past Harvest

(Year Origin)

Unsuitable Soils

Riparian Management

Area

Slope > 72%

Other Ownership

Old Growth Habitat LUD

Recreation River LUD

Scenic River LUD

State Highway

National Forest System Road - Open

National Forest System Road - Stored

Non-National Forest 

System Road

Proposed Reconstructed Road

Proposed System Road 

(reopened Decommissioned)

Proposed Temporary Road 

(reopened Decommissioned)

Proposed System Road

Proposed Temporary

Road

Old Growth

Helicopter

Shovel or Cable

Partial Cut

Young Growth

Systematic Strip Thin

Uniform Crown Thin

Class 1 Stream

Class 2 Stream

Class 3 Stream

Class 4 Stream

Lake

100’ Contour

Eagle Nest Buffer

Legacy

Visual Buffer

Deferred (within

Original Unit

Reconnaissance

Area)

581

RR

SR

R:\projects_2010\BigThorneEIS\maps\Unitcards\ROD.mxd 3 June 2013

438 - Big Thorne Project Record of Decision Appendix 1
Unit 

Number: 191

Alternatives: ROD Total Unit 

Acres: 13.4

Prescription: Clearcut

 

VCU 

Number: 581

Yarding System:

Cable, Shovel

Net Harvest

Volume 

(MBF): 262

LUD: Modified Landscape

Summary of Concerns, Responses, BMPs and Mitigation

SILVICULTURE: Existing Condition: This unit has old growth structure consisting primarily of western hemlock. 

Sitka spruce and western redcedar are present, but as secondary components. Most of the stand has experienced 

heavy windthrow. This windthrow has created two distinct cohorts consisting of old growth western hemlock and 

Sitka spruce over young intermediate Sitka spruce and western hemlock. In the old growth western hemlock, heart 

rot and stem decay are high, while mistletoe is moderate. Defect and damages are also high in the oldest Sitka 

spruce. The western redcedar has moderate defect. Windthrow risk is high. All adjacent past harvest areas have 

regeneration at least 5 feet tall, meeting NFMA requirements for no longer being considered openings.

Silvicultural Prescription: Even-age Management - Clearcut

This unit is adjacent to the Coffman Cove Loop road and due to the combination of moderate SIO and foreground 

distance zone, requires minimal visibility of harvest openings from this road. In order to meet this requirement a 

screen of trees is being prescribed to be maintained to block the harvest area from view. Utilize younger spruce and 

hemlock to obtain the screen. Avoid leaving large defective trees adjacent to the road. This stand has a mature 

overstory with high levels of decay and defect resulting in a situation where stand growth is being offset by decay. 

Even-aged clear cutting is being prescribed to preclude or minimize the risk of windthrow post-harvest, promote 

natural regeneration by opening up the canopy, and minimize defect and disease in the future stand to the maximum 

extent possible.

The legacy standard and guide applies in this VCU. Units 191, 192, 193, 469 and 470 combine to form a potential 

opening of 224 acres. This requires that approximately 67 acres of productive old growth representative of the 

overall composition of the planned harvest area be maintained within the combined 191, 192,193, 469 and 470

potential opening. Legacy was placed to divide the combined opening, avoid sensitive plants, provide RAW and 

coincide with steep slopes, unsuitable soils and lower value timber. These units have a combined mapped legacy of 

approximately 74 acres. The majority of the legacy is within units 469 and 470. 

TIMBER/YARDING: Cable settings yard to the proposed temporary road. Shovel settings yard to the proposed 

temporary road and NFS road 3030000.

ENGINEERING/ROADS: Unit is accessed by a proposed temporary road of 1,000 feet.

BOTANY: No Concerns

INVASIVE SPECIES: No Concerns

FISHERIES: Streams are tributaries to Eagle Creek

Stream#: 7 Class: III Flagging: O/W C- Type: HCM Concerns: exposed bedrock

Buffer (RMA): Class III for HCM- to the top of the side-slope break.

Alternatives: ROD Buffer (RAW): no review needed Protection: Category B 

Stream#: 4 Class: II, III Flagging: B/W, O/W C- Type: HCM, HCD 

Concerns: blowdown, active erosion, steep side-slopes with loose soils and exposed bedrock, bedload storage.

Buffer (RMA): Class II for HCM- greater of 100 feet or to the top of the side-slope break. Class III for HCM and 

HCD- to the top of the side-slope break.

Alternatives: ROD Buffer (RAW): no review needed Protection: Category A and B

Stream#: 4.1L Class: II, III Flagging: B/W, O/W C- Type: HCL Concerns: blowdown

Buffer (RMA): Class II for HCL- greater of 100 feet or to the top of the side-slope break. Class III for HCL- to the 

top of the side-slope break

Alternatives: ROD Buffer (RAW): review required on south side Protection: Category A and B

All other streams in unit: Class: IV Flagging: G/W C- Type: HC or MM 

Buffer (RMA): none Buffer (RAW): no review needed Protection: Category C 

Appendix 1 - Unit Cards - 439 Appendix 1
Temporary roads for Unit 191: Two Class IV stream crossings. If any additional stream crossings are found, 

crossings structures and locations will be approved by USFS, in consultation with fisheries biologist or hydrologist, 

prior to construction (BMP 14.17). During construction of temporary roads implement BMPs 12.17, 13.10, 13.11, 

13.16, 14.3, and 14.5.

GEOLOGY/KARST: No Concerns

HERITAGE RESOURCES: This unit was investigated per the third amended interagency Programmatic Agreement 

(PA) for historic properties. As specified by the PA, any potential adverse effect on historic properties (if any) was 

mitigated and portions of the Area of Potential Effect will be monitored by a qualified heritage specialist during 

and/or after actual ground disturbance.

SCENERY: Most of the unit has a Moderate SIO and unit is along the 3030000 Road. A visual buffer is prescribed 

along the road to screen most views into unit. This screen will be designed for windfirmness. See Silviculture 

section. With the screen, VAC is expected to be Intermediate and 15 to 40 acre openings are considered typical by 

the Forest Plan.

RECREATION: No Concerns.

SOILS/WETLANDS: Slopes range from 30 to 50%. Forested wetlands are found on slopes less than 40% in the 

unit (R10 BMP 12.5 and National Core BMPs AqEco-2 and AqEco-4). The soils and wetlands are suitable for a 

minimum of partial suspension cable yarding and should follow R10 BMPs 12.5, 13.2 and 13.9 and National Core 

BMPs Plan-2, Veg-2, Veg-5, and Veg-6. 

The proposed temporary road does not cross any wetland. Provide adequate cross drainage, remove drainage 

structures, and close road after harvest. Follow R10 BMPs12.5 and 14.9 and National Core BMPs AqEco-2, AqEco4, Road-2, and Road-7.

WILDLIFE: Unit includes average snow deer winter range (entire unit), all of which is also deep snow marten 

habitat/deer winter range. Legacy standard and guideline applies in this VCU, see silviculture section.

440 - Big Thorne Project Record of Decision Appendix 1
3030000

3030202

3030200

3030100

3030105

2

4.2R

1.1R.7L

7

4.1 R

1.1R.7L.1L

7.1L

4.3R

7.1L.1L

.1R.8R

4.1L

4

4.3AR

1.1R.7L.1L

7.1L

3

1.1R.7L.3L

1.1R

7.1L.2R

1.1R

6

5

1.1R.7L.2R

7

4

4.1R.1 R

4

2005

1969

1989

1969

1974

470

572

191

192

469

A

A

B

B

C

C

D

D

E

E

F

F

G

G

H

H

I

I

J

J

10 10

9 9

8 8

7 7

6 6

5 5

4 4

3 3

2 2

1 1

Unit Number 191 ROD VCU: 

0 500

Feet

Past Harvest

(Year Origin)

Unsuitable Soils

Riparian Management

Area

Slope > 72%

Other Ownership

Old Growth Habitat LUD

Recreation River LUD

Scenic River LUD

State Highway

National Forest System Road - Open

National Forest System Road - Stored

Non-National Forest 

System Road

Proposed Reconstructed Road

Proposed System Road 

(reopened Decommissioned)

Proposed Temporary Road 

(reopened Decommissioned)

Proposed System Road

Proposed Temporary

Road

Old Growth

Helicopter

Shovel or Cable

Partial Cut

Young Growth

Systematic Strip Thin

Uniform Crown Thin

Class 1 Stream

Class 2 Stream

Class 3 Stream

Class 4 Stream

Lake

100’ Contour

Eagle Nest Buffer

Legacy

Visual Buffer

Deferred (within

Original Unit

Reconnaissance

Area)

581

RR

SR

R:\projects_2010\BigThorneEIS\maps\Unitcards\ROD.mxd 3 June 2013

Appendix 1 - Unit Cards - 441 Appendix 1
Unit 

Number: 192

Alternatives: ROD Total Unit 

Acres: 21.0

Prescription: Clearcut

 

VCU 

Number: 581

Yarding System:

Cable, Shovel

Net Harvest

Volume 

(MBF): 441

LUD: Modified Landscape

Summary of Concerns, Responses, BMPs and Mitigation

SILVICULTURE: Existing Condition: This unit has old-growth stand structure. The stand is mostly western 

hemlock with scattered western redcedar. Defect and damages are moderate for most species, but high in the larger 

western hemlock. The incidence of mistletoe is light to moderate. Little past windthrow is found within the stand, 

however exposure and timber type combine to increase risk. Moderate risk is estimated. All adjacent past harvest 

areas have regeneration at least 5 feet tall, meeting NFMA requirements for no longer being considered openings.

Silvicultural Prescription: Even-age Management - Clearcut

This stand is mature with moderate to high stem decay and defect resulting in a situation where stand growth is 

being offset by decay. Even-aged clear cutting is being prescribed to preclude or minimize the risk of windthrow 

post-harvest, promote natural regeneration by opening up the canopy and minimize defect and disease in the future 

stand to the maximum extent possible.

The legacy standard and guide applies in this VCU. Units 191, 192, 193, 469 and 470 combine to form a potential 

opening of 224 acres. This requires that approximately 67 acres of productive old growth representative of the 

overall composition of the planned harvest area be maintained within the combined 191, 192,193, 469 and 470 

potential opening. Legacy was placed to divide the combined opening, avoid sensitive plants, provide RAW and 

coincide with steep slopes, unsuitable soils and reduce visual impacts. These units have a combined mapped legacy 

of approximately 74 acres. The majority of the legacy is within units 469 and 470. 

TIMBER/YARDING: Shovel and cable yarding to NFS road 3030000.

ENGINEERING/ROADS: No proposed road construction or reconstruction.

BOTANY: One population of lesser round-leaved orchid, with seven plants, and one population of lance-leaf 

grapefern, with three plants, have been incorporated into the proposed legacy for this unit. The lance-leaf grape fern 

population is partially within the indirect effects area for the unit.

INVASIVE SPECIES: No Concerns

FISHERIES: Streams are tributaries to Eagle Creek

Stream#: 7 Class: I, II, III Flagging: B/W, O/W C- Type: FPL, MMS, HCM 

Concerns: heavy braiding with exposed roots; steep side-slopes, shallow soils, bedrock

Buffer (RMA): Class I- greater of 130 feet (FPL) and 120 feet (MMS) or flood plain, riparian vegetation or soils, or 

riparian associated wetland fens. Class I and II for HCM- greater of 100 feet or to the top of the side-slope break. 

Class III for HCM- to the top of the side-slope break.

Alternatives: ROD Buffer (RAW): review required for southwest exposure Protection: Category A and B

Stream#: 7.1L Class: I, II, IV Flagging: B/W, G/W C- Type: MMO, HCO Concerns: none

Buffer (RMA): Class I and II for MMO- greater of 120 feet, flood plain, riparian vegetation or soils, or riparian 

associated wetland fens. Class IV for HCO- none

Alternatives: ROD Buffer (RAW): no review needed Protection: Category A and C

Stream#: 8 Class: I, II Flagging: B/W C- Type: FPL, HCO Concerns: blowdown

Buffer (RMA): Class I for FPL- greater of 130 feet, flood plain, riparian vegetation or soils, or riparian associated 

wetland fens. Class I and II for HCO- greater of 100 feet or to the top of the side-slope break.

Alternatives: ROD Buffer (RAW): no review required Protection: Category A

Stream#: Lake-A1 (Luck Lake) Class: 1 Flagging: B/W C- Type: L Concerns: none 

Buffer (RMA): Class I for Lake-1- greater of 100 horizontal feet or to the extent of the flood plain, riparian 

vegetation or soils, riparian associated wetland fens, or one site-potential tree height.

Alternatives: ROD Buffer (RAW): no review needed Protection: Category A

All other streams in unit: Class: IV Flagging: G/W C- Type: HC or MM 

442 - Big Thorne Project Record of Decision Appendix 1
Buffer (RMA): none Buffer (RAW): no review needed Protection: Category C

GEOLOGY/KARST: No Concerns

HERITAGE RESOURCES: This unit was investigated per the third amended interagency Programmatic Agreement 

(PA) for historic properties. As specified by the PA, any potential adverse effect on historic properties (if any) was 

mitigated and portions of the Area of Potential Effect will be monitored by a qualified heritage specialist during 

and/or after actual ground disturbance.

SCENERY: The unit is along the 3030000 road and is Moderate SIO. Some screening occurs due to trees along the 

road, but much of the unit is visible. However, the unit is long and relatively narrow and it is not all visible at the 

same time. The unit is mostly screened from view from Luck Lake. Typical opening size given in the Forest Plan 

for Moderate SIO with Intermediate VAC is 15 to 40 acres.

RECREATION: No Concerns.

SOILS/WETLANDS: Slopes range from 15 to 35%. Forested wetlands are dominant throughout the unit (R10 

BMP 12.5 and National Core BMPs AqEco-2 and AqEco-4). The soils and wetlands are suitable with a minimum of 

partial suspension cable yarding or shovel yarding and should follow R10 BMPs 12.5, 13.2 and 13.9 and National 

Core BMPs Plan-2, Veg-2, Veg-4, Veg-5, and Veg-6. Follow shovel yarding guidelines outlined in the introductions 

to unit cards (R10 BMP 13.9 and National Core Veg-4).

WILDLIFE: Unit includes average snow deer winter range (entire unit), all of which is also deep snow marten 

habitat/deer winter range. Legacy standard and guideline applies in this VCU; see silviculture section.

Appendix 1 - Unit Cards - 443 Appendix 1
3030200

3030105

3030000

3030202

3030100

10.1R.2L

10.1R.1L

10

7.1L

1

7

6

4.3R

8

10

2.2R

10.2R

4.3AR

2.1R 10

7.1L.1L

10.1R.2L

10.2R.1L

7.1L

7.1L.2R

10.2R

5

10.2R.2L

10.1R.2L.1L

10.1R

7

4

9

4.2R

10.1R

7

1974

2005

1989

1969

1989

1969

1969

194

572

571

191

192

193

A

A

B

B

C

C

D

D

E

E

F

F

G

G

H

H

I

I

J

J

10 10

9 9

8 8

7 7

6 6

5 5

4 4

3 3

2 2

1 1

Unit Number 192 ROD VCU: 

0 500

Feet

Past Harvest

(Year Origin)

Unsuitable Soils

Riparian Management

Area

Slope > 72%

Other Ownership

Old Growth Habitat LUD

Recreation River LUD

Scenic River LUD

State Highway

National Forest System Road - Open

National Forest System Road - Stored

Non-National Forest 

System Road

Proposed Reconstructed Road

Proposed System Road 

(reopened Decommissioned)

Proposed Temporary Road 

(reopened Decommissioned)

Proposed System Road

Proposed Temporary

Road

Old Growth

Helicopter

Shovel or Cable

Partial Cut

Young Growth

Systematic Strip Thin

Uniform Crown Thin

Class 1 Stream

Class 2 Stream

Class 3 Stream

Class 4 Stream

Lake

100’ Contour

Eagle Nest Buffer

Legacy

Visual Buffer

Deferred (within

Original Unit

Reconnaissance

Area)

581

RR

SR

R:\projects_2010\BigThorneEIS\maps\Unitcards\ROD.mxd 3 June 2013

444 - Big Thorne Project Record of Decision Appendix 1
Unit 

Number: 193

Alternatives: ROD Total Unit 

Acres: 8.0

Prescription: Clearcut

 

VCU 

Number: 581

Yarding System:

Cable

Net Harvest

Volume 

(MBF): 276

LUD: Modified Landscape

Summary of Concerns, Responses, BMPs and Mitigation

SILVICULTURE: Existing Condition: Unit 193 has old-growth stand structure with overstory species consisting of 

western hemlock, Sitka spruce and western redcedar. The average defect for the unit is light to moderate with stem 

decay as the dominant defect. Overall this unit has mature timber that is high volume, high quality and relatively 

healthy. Growth is static. Mistletoe is light. Windthrow risk is high. All adjacent past harvest areas have 

regeneration at least 5 feet tall, meeting NFMA requirements for no longer being considered openings.

Silvicultural Objective/Desired Condition: The desired condition for this stand is a highly productive, healthy, 

windfirm stand grown for timber management that retains residual trees as needed to meet standards and guides or 

other objectives.

Silvicultural Prescription: Even-age Management - Clearcut

Due to this unit being in a moderate SIO and foreground distance zone, harvest opening of 5 to 10 acres are allowed. 

The unit is currently slightly less than this as designed. This stand is mature with low to moderate levels of decay 

and defect resulting in a situation where stand growth is being offset by decay. Even-aged clear cutting is being 

prescribed to preclude or minimize the risk of windthrow post-harvest, promote natural regeneration by opening up 

the canopy and minimize defect and disease in the future stand to the maximum extent possible.

The legacy standard and guide applies in this VCU. Units 191, 192, 193, 469 and 470 combine to form a potential 

opening of 224 acres. This requires that approximately 67 acres of productive old growth representative of the 

overall composition of the planned harvest area be maintained within the combined 191, 192,193, 469 and 470 

potential opening. Legacy was placed to divide the combined opening, avoid sensitive plants, provide RAW and 

coincide with steep slopes, unsuitable soils and lower value timber. These units have a combined mapped legacy of 

approximately 74 acres. The majority of the legacy is within units 469 and 470. 

TIMBER/YARDING: Cable yarding to NFS road 3030000.

ENGINEERING/ROADS: No proposed road construction or reconstruction.

BOTANY: No Concerns

INVASIVE SPECIES: No Concerns

FISHERIES: Streams are tributaries to Eagle Creek

Stream#: 8 Class: I, II Flagging: B/W C- Type: FPL, HCO Concerns: blowdown

Buffer (RMA): Class I for FPL- greater of 130 feet, flood plain, riparian vegetation or soils, or riparian associated 

wetland fens. Class I and II for HCO- greater of 100 feet or to the top of the side-slope break.

Alternatives: ROD Buffer (RAW): no review needed Protection: Category A

Stream#: 9 Class: I, IV Flagging: B/W, G/W C- Type: MMO Concerns: none

Buffer (RMA): Class I for MMO- greater of 120 feet, flood plain, riparian vegetation or soils, or riparian associated 

wetland fens. Class IV for HCO- none

Alternatives: ROD Buffer (RAW): no review needed Protection: Category A and C

Stream#: 10 Class: I Flagging: B/W C- Type: FPM, AFM, MMS, HCL Concerns: blowdown

Buffer (RMA): Class I for AFM- greater of 140 feet or active portion of alluvial fan. Class I- greater of 130 feet 

(FPM) or 120 feet (MMS), flood plain, riparian vegetation or soils, or riparian associated wetland fens. Class I for 

HCL- greater of 100 feet or to the top of the side-slope break.

Alternatives: ROD Buffer (RAW): no review needed Protection: Category A 

Stream#: 10.1R Class: I, II, III Flagging: B/W, O/W C- Type: FPS, HCM Concerns: blowdown

Buffer (RMA): Class I for FPS- greater of 130 feet or flood plain, riparian vegetation or soils, or riparian associated 

wetland fens. Class I and II for HCM- greater of 100 feet or to the top of the side-slope break. Class III for HCM- to 

the top of the side-slope break.

Appendix 1 - Unit Cards - 445 Appendix 1
Alternatives: ROD Buffer (RAW): no review needed Protection: Category A and B

Stream#: 10.1R.1L Class: I, II, IV Flagging: B/W, G/W C- Type: MMO, HCO Concerns: blowdown

Buffer (RMA): Class I for MMO- greater of 120 feet, flood plain, riparian vegetation or soils, or riparian associated 

wetland fens. Class II for HCO- greater of 100 feet or to the top of the side-slope break. Class IV for HCO- none

Alternatives: ROD Buffer (RAW): no review needed Protection: Category A and C

Stream#: 10.1R.2L Class: I, II, IV Flagging: B/W, G/W C- Type: MMO, HCO Concerns: blowdown

Buffer (RMA): Class I for MMO- greater of 120 feet, flood plain, riparian vegetation or soils, or riparian associated 

wetland fens. Class II for HCO- greater of 100 feet or to the top of the side-slope break. Class IV for HCO- none

Alternatives: ROD Buffer (RAW): no review needed Protection: Category A and C

Stream#: 10.1R.2L.1L Class: I, IV Flagging: B/W, G/W C- Type: HCO Concerns: blowdown

Buffer (RMA): Class I for HCO- greater of 100 feet or to the top of the side-slope break. Class IV for HCO- none

Alternatives: ROD Buffer (RAW): no review needed Protection: Category A and C

Stream#: 10.2R Class: I, II, IV Flagging: B/W, G/W C- Type: MMO, HCO Concerns: blowdown

Buffer (RMA): Class I for MMO- greater of 120 feet, flood plain, riparian vegetation or soils, or riparian associated 

wetland fens side-slope break. Class I and II for HCO- greater of 100 feet or to the top of the side-slope break. 

Class IV for HCO- none 

Alternatives: ROD Buffer (RAW): no review needed Protection: Category A and C

Stream#: Lake-A1 (Luck Lake) Class: 1 Flagging: B/W C- Type: L Concerns: none 

Buffer (RMA): Class I for Lake-1- greater of 100 horizontal feet or to the extent of the flood plain, riparian 

vegetation or soils, riparian associated wetland fens, or one site-potential tree height.

Alternatives: ROD Buffer (RAW): no review needed Protection: Category A

All other streams in unit: Class: IV Flagging: G/W C- Type: HC or MM 

Buffer (RMA): none Buffer (RAW): no review needed Protection: Category C

GEOLOGY/KARST: No Concerns

HERITAGE RESOURCES: This unit was investigated per the third amended interagency Programmatic Agreement 

(PA) for historic properties. As specified by the PA, any potential adverse effect on historic properties (if any) was 

mitigated and portions of the Area of Potential Effect will be monitored by a qualified heritage specialist during 

and/or after actual ground disturbance.

SCENERY: The unit is along the 3030000 road and is in Moderate SIO. Screening occurs due to riparian buffers 

that cross the unit, so that only small portions of the unit are visible at a time. Also, the unit is long and relatively 

narrow. The unit is mostly screened from view from Luck Lake. Typical opening size given in the Forest Plan for 

Moderate SIO with Intermediate VAC is 15 to 40 acres.

RECREATION: No Concerns.

SOILS/WETLANDS: Slopes range from nearly level to 35%. Forested wetlands are dominant throughout the unit 

(R10 BMP 12.5 and National Core BMPs AqEco-2 and AqEco-4). A minimum of partial suspension with cable 

yarding will meet soil and wetland resource concerns (R10 BMPS 12.5, 13.5, and 13.9 and National Core BMPs 

Plan-2, AqEco-2, AqEco-4, Veg-1, Veg-2, Veg-5, and Veg-6).

WILDLIFE: Unit includes average snow deer winter range (entire unit), all of which is also deep snow marten 

habitat/deer winter range. Legacy standard and guideline applies in this VCU, see silviculture section.

446 - Big Thorne Project Record of Decision Appendix 1
3030202

3030000

2

2

10.1R.2L

10.1R.1L

10

3.1R.1R

7.1L

3

8

1

1

7

10

3.1R

1.1L

2L.1L .1L.1R

10.2R

2.2R

4

1.3 L

7.1L.1L

5

10.1R.2L

10.2R.1L

4

7.1L

7

7.1L.2R

10.2R.2L

10.1R.2L.1L

4.1

3 R

10.1R

9

2

1.2L

1.1L

10.1R

2.1R

2

10.2R

1969

1989

1969

1969

1968

1968

1968

1969

194

571

570

192

193

A

A

B

B

C

C

D

D

E

E

F

F

G

G

H

H

I

I

J

J

10 10

9 9

8 8

7 7

6 6

5 5

4 4

3 3

2 2

1 1

Unit Number 193 ROD VCU: 

0 500

Feet

Past Harvest

(Year Origin)

Unsuitable Soils

Riparian Management

Area

Slope > 72%

Other Ownership

Old Growth Habitat LUD

Recreation River LUD

Scenic River LUD

State Highway

National Forest System Road - Open

National Forest System Road - Stored

Non-National Forest 

System Road

Proposed Reconstructed Road

Proposed System Road 

(reopened Decommissioned)

Proposed Temporary Road 

(reopened Decommissioned)

Proposed System Road

Proposed Temporary

Road

Old Growth

Helicopter

Shovel or Cable

Partial Cut

Young Growth

Systematic Strip Thin

Uniform Crown Thin

Class 1 Stream

Class 2 Stream

Class 3 Stream

Class 4 Stream

Lake

100’ Contour

Eagle Nest Buffer

Legacy

Visual Buffer

Deferred (within

Original Unit

Reconnaissance

Area)

581

RR

SR

R:\projects_2010\BigThorneEIS\maps\Unitcards\ROD.mxd 3 June 2013

Appendix 1 - Unit Cards - 447 Appendix 1
Unit 

Number: 194

Alternatives: ROD Total Unit 

Acres: 76.2

Prescription: Clearcut and 25% 

Removal

VCU 

Number: 581

Yarding System:

Cable, Shovel, Helicopter

Net Harvest

Volume 

(MBF): 1,650

LUD: Modified Landscape

Summary of Concerns, Responses, BMPs and Mitigation

SILVICULTURE: Existing Condition: This unit has old-growth stand structure. The overstory consists primarily of 

western hemlock with Sitka spruce, western redcedar and Alaska-cedar mixed. Overall the unit rated high for wind 

risk and has light mistletoe. There is evidence of high defect, primarily stem decay, in the western hemlock and 

Sitka spruce overstory. A two-age stand adjacent to the boundary south has lost 25% of residual trees since harvest 

in 2005. The combined acreage of this past harvest and the maximum proposed clear cut acreage for unit 194 is 

approximately 77 acres. No adjustments to unit 194 are required to meet NFMA opening size requirements under 

any alternative.

Silvicultural Prescription: Even-age Management 

This unit has a low SIO and is primarily in the middleground. This classification allows for harvest openings of 40 

to 60 acres. The unit as currently designed will have 51 acres of clearcut. This stand is mature with moderate to high 

stem decay and defect resulting in a situation where stand growth is being offset by decay. Even-aged clear cutting 

is being prescribed to preclude or minimize the risk of windthrow post-harvest, promote natural regeneration by 

opening up the canopy and minimize defect and disease in the future stand to the maximum extent possible.

The legacy standard and guide applies in this VCU. Approximately 23 acres of productive old growth representative 

of the overall composition of the planned harvest area be maintained. Legacy was placed to cover RMA and 

consolidate POG. Total mapped legacy is approximately 23 acres. 

Silvicultural Prescription: Uneven-age Management Single Tree Selection (Helicopter Settings)

Maintain at least 75 percent of the setting pretreatment basal area, based on standing live tree total for the unit, 

uncut. Review the marking guides in the harvest prescription for this unit to obtain basal area by species allowances 

and other specific instructions. Review the introduction to the unit cards for general guidance. 

The uneven-aged single tree selection regeneration method is being prescribed for this unit due to high windthrow 

risk combined with full suspension requirements and as a means to maintain wildlife habitat. The system is not 

optimum for timber production.

TIMBER/YARDING: Cable settings yard to the proposed temporary roads. Shovel settings yard to the proposed 

temporary roads and NFS roads 3030200 and 3030202. Helicopter settings yard to NFS road 3030202.

ENGINEERING/ROADS: Unit is accessed by two proposed temporary roads, totaling 2,400 feet. Approximately 

2,000 feet of this road will be constructed over decommissioned road bed. 

BOTANY: No Concerns

INVASIVE SPECIES: No Concerns

FISHERIES: Streams are tributaries to Eagle Creek

Stream#: 1 Class: III, IV Flagging: O/W, G/W C- Type: HCD, HCM 

Concerns: blowdown and active erosion

Buffer (RMA): Class III for HCD- to the top of the side-slope break. Class IV for HCM- none

Alternatives: ROD Buffer (RAW): no review needed Protection: Category B and C

Stream#: 1.1L Class: III, IV Flagging: O/W, G/W C- Type: HCM, HCO Concerns: none

Buffer (RMA): Class III for HCM- to the top of the side-slope break. Class IV for HCO- none

Alternatives: ROD Buffer (RAW): no review needed Protection: Category B and C

Stream#: 1.2L Class: III, IV Flagging: O/W, G/W C- Type: HCD, HCO Concerns: none

Buffer (RMA): Class III for HCD- to the top of the side-slope break. Class IV for HCO- none

Alternatives: ROD Buffer (RAW): no review needed Protection: Category B and C 

Stream#: 1.3L Class: III, IV Flagging: O/W, G/W C- Type: HCD, HCO Concerns: none

448 - Big Thorne Project Record of Decision Appendix 1
Buffer (RMA): Class III for HCD- to the top of the side-slope break. Class IV for HCO- none

Alternatives: ROD Buffer (RAW): no review needed Protection: Category B and C

Stream#: 7 Class: III, IV Flagging: O/W, G/W C- Type: HCM, HCO Concerns: blowdown and 

active erosion, unstable side-slopes

Buffer (RMA): Class III for HCM to the top of the side-slope break. Class IV for HCO none. 

Alternatives: ROD Buffer (RAW): none Protection: Category B and C

All other streams in unit: Class: IV Flagging: G/W C- Type: HC and MM 

Buffer (RMA): none Buffer (RAW): no review needed Protection: Category C

Temporary roads for Unit 194: One Class III and three Class IV crossings. If any additional stream crossings are 

found, crossings structures and locations will be approved by USFS, in consultation with fisheries biologist or 

hydrologist, prior to construction (BMP 14.17). During construction of temporary roads implement BMPs 12.17, 

13.10, 13.11, 13.16, 14.3, and 14.5.

GEOLOGY/KARST: No Concerns

HERITAGE RESOURCES: This unit was investigated per the third amended interagency Programmatic Agreement 

(PA) for historic properties. As specified by the PA, any potential adverse effect on historic properties (if any) was 

mitigated and portions of the Area of Potential Effect will be monitored by a qualified heritage specialist during 

and/or after actual ground disturbance.

SCENERY: Unit is entirely in Low SIO. Legacy screens much of the harvest. No Concerns

RECREATION: No Concerns.

SOILS/WETLANDS: Slopes range from 15 to greater than 72%. Approximately 1 acre of slopes greater than 72% 

is suitable for harvest with full suspension. Forested wetlands are intermittent in the unit (R10 BMP 12.5 and 

National Core BMPs AqEco-2 and AqEco-4). In the remainder of the unit, the soils and wetlands are suitable for a 

minimum of partial suspension cable yarding, helicopter yarding, or shovel yarding and should follow R10 BMPs 

12.5, 13.2 and 13.9 and National Core BMPs Plan-2, Veg-2, Veg-4, Veg-5, and Veg-6. Follow shovel yarding 

guidelines outlined in the introductions to unit cards (R10 BMP 13.9 and National Core Veg-4).

The proposed temporary road does not cross any wetlands. Provide adequate cross drainage, remove drainage 

structures, and close road after harvest. Follow R10 BMPs12.5 and 14.9 and National Core BMPs AqEco-2, AqEco4, Road-2, and Road-7.

WILDLIFE: Unit includes average snow deer winter range (entire unit), some of which is also deep snow marten 

habitat/deer winter range (southeastern lobe of unit). Bald eagles observed in unit. Legacy standard and guideline 

applies in this VCU; see silviculture section.

Appendix 1 - Unit Cards - 449 Appendix 1
3030200

3030000

3030200

3030202

10.1R

10

1

1.1L

2

1

5

1.3L

1.2L

2

3.1R

10.2R

7

1

10.2R

2.2R

1.1L.1L

1.1L.1R

10.1R.1L

1.3L.1R

1.1R

1.3L.1L

1.1L

1.1L

1.2R

10.1R.2L

8

4

1.2L 1.2L.1L

3

1.2L.3R

1.2R

7.2L

10.2R.2L

1.4L

1.2L.1R

7.1R

2.1R

1989

1989

1969

2005

1990

1990

1968 1968

194

195

571

193

A

A

B

B

C

C

D

D

E

E

F

F

G

G

H

H

I

I

J

J

10 10

9 9

8 8

7 7

6 6

5 5

4 4

3 3

2 2

1 1

Unit Number 194 ROD VCU: 

0 500

Feet

Past Harvest

(Year Origin)

Unsuitable Soils

Riparian Management

Area

Slope > 72%

Other Ownership

Old Growth Habitat LUD

Recreation River LUD

Scenic River LUD

State Highway

National Forest System Road - Open

National Forest System Road - Stored

Non-National Forest 

System Road

Proposed Reconstructed Road

Proposed System Road 

(reopened Decommissioned)

Proposed Temporary Road 

(reopened Decommissioned)

Proposed System Road

Proposed Temporary

Road

Old Growth

Helicopter

Shovel or Cable

Partial Cut

Young Growth

Systematic Strip Thin

Uniform Crown Thin

Class 1 Stream

Class 2 Stream

Class 3 Stream

Class 4 Stream

Lake

100’ Contour

Eagle Nest Buffer

Legacy

Visual Buffer

Deferred (within

Original Unit

Reconnaissance

Area)

581

RR

SR

R:\projects_2010\BigThorneEIS\maps\Unitcards\ROD.mxd 3 June 2013

450 - Big Thorne Project Record of Decision Appendix 1
Unit 

Number: 195

Alternatives: ROD Total Unit 

Acres: 37.6

Prescription: Clearcut 

VCU 

Number: 581

Yarding System:

Cable, Shovel, Helicopter

Net Harvest

Volume 

(MBF): 1,231

LUD: Modified Landscape, 

Timber Production

Summary of Concerns, Responses, BMPs and Mitigation

SILVICULTURE: Existing Condition: This unit has old-growth stand structure. Windthrow risk is moderate 

throughout the stand. Mistletoe was rated low. The overstory is made of widely-spaced mature western hemlock and 

Alaska-cedar with scattered Sitka spruce and western redcedar. The primary defect in the overstory is stem decay. 

Alaska cedar decline was also evident in the upper elevations where drainage is restricted. All adjacent past harvest 

areas have regeneration at least 5 feet tall, meeting NFMA requirements for no longer being considered openings.

Silvicultural Prescription: Even-age Management – Clearcut 

This stand is mature with moderate to high stem decay and defect resulting in a situation where stand growth is 

being offset by decay. Even-aged clear cutting is being prescribed to preclude or minimize the risk of windthrow 

post- harvest, promote natural regeneration by opening up the canopy and minimize defect and disease in the future 

stand to the maximum extent possible.

The legacy standard and guide applies in this VCU. This requires that approximately 16 acres of productive old 

growth representative of the overall composition of the planned harvest area be maintained. The largest portion of 

legacy was placed to coincide with areas dropped due to soils and RMA. Three acres of legacy was added adjacent 

to RMAs to divide unit into two openings and for RAW. Total mapped legacy is approximately 17 acres.

TIMBER/YARDING: Shovel, helicopter and cable yarding to the proposed temporary road.

ENGINEERING/ROADS: Unit is accessed by a proposed temporary road of 2,100 feet.

BOTANY: No Concerns

INVASIVE SPECIES: No Concerns

FISHERIES: Streams are tributaries to Eagle Creek

Stream#: 1 Class: III, IV Flagging: O/W, G/W C- Type: HCD, HCM, HCO 

Concerns: active erosion, unstable side-slopes

Buffer (RMA): Class III for HCD and HCM- to the top of the side-slope break. Class IV for HCO- none. 

Alternatives: ROD Buffer (RAW): no review needed Protection: Category B and C

Stream#: 1.1L Class: III, IV Flagging: O/W, G/W C- Type: HCD, HCM, HCO Concerns: blowdown, 

active erosion, and unstable side-slopes

Buffer (RMA): Class III for HCD and HCM- to the top of the side-slope break. Class IV for HCO- none

Alternatives: ROD Buffer (RAW): review required on north side Protection: Category B and C

All other streams in unit: Class: IV Flagging: G/W C- Type: HC or MM 

Buffer (RMA): none Buffer (RAW): no review needed Protection: Category C

Temporary roads for Unit 195: Four Class IV crossings. If any additional stream crossings are found, crossings 

structures and locations will be approved by USFS, in consultation with fisheries biologist or hydrologist, prior to 

construction (BMP 14.17). During construction of temporary roads implement BMPs 12.17, 13.10, 13.11, 13.16, 

14.3, and 14.5.

GEOLOGY/KARST: No Concerns

HERITAGE RESOURCES: This unit was investigated per the third amended interagency Programmatic Agreement 

(PA) for historic properties. As specified by the PA, any potential adverse effect on historic properties (if any) was 

mitigated and portions of the Area of Potential Effect will be monitored by a qualified heritage specialist during 

and/or after actual ground disturbance.

SCENERY: Unit is almost entirely in Very Low SIO, with 4 acres of Low. No concerns.

RECREATION: No Concerns.

SOILS/WETLANDS: Slopes range from nearly level to 55% in the current unit. Approximately 8 acres were 

excluded due to wet steep slopes and hollow topography in the original unit. Forested wetlands are located 

throughout the unit (R10 BMP 12.5 and National Core BMPs AqEco-2 and AqEco-4). In the remainder of the unit, 

Appendix 1 - Unit Cards - 451 Appendix 1
the soils and wetlands are suitable for a minimum of partial suspension cable yarding, helicopter yarding, or shovel 

yarding and should follow R10 BMPs 12.5, 13.2 and 13.9 and National Core BMPs Plan-2, Veg-2, Veg-4, Veg-5, 

and Veg-6. Follow shovel yarding guidelines outlined in the introductions to unit cards (R10 BMP 13.9 and National 

Core Veg-4).

The proposed temporary road crosses about 1.25 acres of forested wetlands and about 1⁄4 of an acre of emergent short 

sedge. Wetland avoidance is not practicable due to contours, the existing road location, and multiple streams. 

Provide adequate cross drainage, remove drainage structures, and close road after harvest. Follow R10 BMPs12.5 

and 14.9 and National Core BMPs AqEco-2, AqEco-4, Road-2, and Road-7.

WILDLIFE: Unit includes average snow deer winter range (southeastern edge of northern portion of unit). Legacy 

standard and guideline applies in this VCU; see silviculture section. 

452 - Big Thorne Project Record of Decision Appendix 1
3030200

3030200

1.2

1.2R

1.4L

1

2.3R

2.4R

1.3L.1R

1.3L.1L

1.6L

1.3R

1.2R

1.4L

1

1.2L.3R

1.1L.2R

1.2L

1.1L

1.1L.1L

1.5R

1.3L

2.2R

1.1L

1

2.1R

1990

2005

1968

1990

194

195

A

A

B

B

C

C

D

D

E

E

F

F

G

G

H

H

I

I

J

J

10 10

9 9

8 8

7 7

6 6

5 5

4 4

3 3

2 2

1 1

Unit Number 195 ROD VCU: 

0 500

Feet

Past Harvest

(Year Origin)

Unsuitable Soils

Riparian Management

Area

Slope > 72%

Other Ownership

Old Growth Habitat LUD

Recreation River LUD

Scenic River LUD

State Highway

National Forest System Road - Open

National Forest System Road - Stored

Non-National Forest 

System Road

Proposed Reconstructed Road

Proposed System Road 

(reopened Decommissioned)

Proposed Temporary Road 

(reopened Decommissioned)

Proposed System Road

Proposed Temporary

Road

Old Growth

Helicopter

Shovel or Cable

Partial Cut

Young Growth

Systematic Strip Thin

Uniform Crown Thin

Class 1 Stream

Class 2 Stream

Class 3 Stream

Class 4 Stream

Lake

100’ Contour

Eagle Nest Buffer

Legacy

Visual Buffer

Deferred (within

Original Unit

Reconnaissance

Area)

581

RR

SR

R:\projects_2010\BigThorneEIS\maps\Unitcards\ROD.mxd 3 June 2013

Appendix 1 - Unit Cards - 453 Appendix 1
Unit 

Number: 197

Alternatives: ROD Total Unit 

Acres: 13.9

Prescription: 25% Removal 

VCU 

Number: 581

Yarding System:

Helicopter

Net Harvest

Volume 

(MBF): 57

LUD: Modified Landscape

Summary of Concerns, Responses, BMPs and Mitigation

SILVICULTURE: Existing Condition: This unit has old-growth stand structure with overstory consisting of western 

hemlock and Alaska-cedar with a minor component of Sitka spruce and western redcedar. This is a high elevation 

stand of mature timber with declining growth. The main damage is stem decay with moderate rating. Mistletoe was 

rated low. Windthrow risk is moderate. An adjacent past harvest to the east has regeneration at least 5 feet tall, 

meeting NFMA requirements for no longer being considered openings.

Silvicultural Prescription: Uneven-age Management Single Tree Selection

Maintain at least 75 percent of the setting pretreatment basal area, based on standing live tree total for the unit, 

uncut. Review the marking guides in the harvest prescription for this unit to obtain basal area by species allowances 

and other specific instructions. Review the introduction to the unit cards for general guidance. 

The uneven-aged single tree selection regeneration method is being prescribed to mitigate soil concerns and impacts 

to wildlife and the watershed. The system is not optimum for timber production.

No legacy retention required because the unit is less than 20 acres and prescription is partial harvest.

TIMBER/YARDING: Helicopter yarding to NFS road 3030000.

ENGINEERING/ROADS: No proposed road construction or reconstruction.

BOTANY: No Concerns

INVASIVE SPECIES: No Concerns

FISHERIES: Streams are tributaries to Eagle Creek

All other streams in unit: Class: IV Flagging: G/W C- Type: HC 

Buffer (RMA): none Buffer (RAW): no review needed Protection: Category C

GEOLOGY/KARST: No Concerns

HERITAGE RESOURCES: This unit was investigated per the third amended interagency Programmatic Agreement 

(PA) for historic properties. As specified by the PA, any potential adverse effect on historic properties (if any) was 

mitigated and portions of the Area of Potential Effect will be monitored by a qualified heritage specialist during 

and/or after actual ground disturbance.

SCENERY: SIO is Low and VAC is also Low because of steepness. With uneven-aged management there are no 

concerns.

RECREATION: No Concerns.

SOILS/WETLANDS: Slopes range from 30 to 85%. Approximately 1⁄2 acre of slopes greater than 72% is suitable 

for harvest with full suspension partial harvest. Approximately 4 acres were excluded due to very high landslide 

potential, steep slopes, unstable drainages, and colluvial activity. In the remainder of the unit, a minimum of full 

suspension would meet soil and wetland resource concerns (R10 BMPS 12.5, 13.5, and 13.9 and National Core 

BMPs Plan-2, AqEco-2, AqEco-4, Veg-1, Veg-2, and Veg-5). Isolated pockets of forested wetlands are found in the 

unit on slopes between 30 and 50% (R10 BMP 12.5 and National Core BMPs AqEco-2 and AqEco-4).

WILDLIFE: Unit includes average snow deer winter range (entire unit). Legacy standard and guideline applies in 

this VCU, however there are no requirements for this unit because adequate structure retained in unit under unevenaged harvest prescription (i.e., no openings larger than 20 acres). 

454 - Big Thorne Project Record of Decision Appendix 1
3030000

3

7.1 L

3

2

1 1

4

8.1 L

6

15

6.1R

18

17

17.1R

5

14

2.1L

1 2

7

6.1l

9

8

2

8

13

10

2

1968

1968

1968

1968

2006

1995

2010

570

197

A

A

B

B

C

C

D

D

E

E

F

F

G

G

H

H

I

I

J

J

10 10

9 9

8 8

7 7

6 6

5 5

4 4

3 3

2 2

1 1

Unit Number 197 ROD VCU: 

0 500

Feet

Past Harvest

(Year Origin)

Unsuitable Soils

Riparian Management

Area

Slope > 72%

Other Ownership

Old Growth Habitat LUD

Recreation River LUD

Scenic River LUD

State Highway

National Forest System Road - Open

National Forest System Road - Stored

Non-National Forest 

System Road

Proposed Reconstructed Road

Proposed System Road 

(reopened Decommissioned)

Proposed Temporary Road 

(reopened Decommissioned)

Proposed System Road

Proposed Temporary

Road

Old Growth

Helicopter

Shovel or Cable

Partial Cut

Young Growth

Systematic Strip Thin

Uniform Crown Thin

Class 1 Stream

Class 2 Stream

Class 3 Stream

Class 4 Stream

Lake

100’ Contour

Eagle Nest Buffer

Legacy

Visual Buffer

Deferred (within

Original Unit

Reconnaissance

Area)

581

RR

SR

R:\projects_2010\BigThorneEIS\maps\Unitcards\ROD.mxd 3 June 2013

Appendix 1 - Unit Cards - 455 Appendix 1
Unit 

Number: 200

Alternatives: ROD Total Unit 

Acres: 16.3

Prescription: Clearcut and 50% 

Removal

VCU 

Number: 581

Yarding System:

Cable, Helicopter

Net Harvest

Volume 

(MBF): 197

LUD: Modified Landscape, 

Timber Production

Summary of Concerns, Responses, BMPs and Mitigation

SILVICULTURE: Existing Condition: This unit has old-growth stand structure with over-mature timber that shows 

declining volume growth. The overstory consists of western hemlock as the dominant species. Secondary species 

include Sitka spruce, and patchy Alaska- cedar with widely scattered western redcedar. The dominant damage is 

stem decay as indicated by cracks and black seams. Mistletoe was rated low. Windthrow risk is moderate. A past 

even-age harvest with origin in 1987 is to the east. An even-age harvest from 1992 and a partial cut cable unit from 

2000 are to the north. These areas all meet the green-up requirements of NFMA.

Silvicultural Prescription: Even-age Management – Clearcut (Settings as shown on the unit card maps)

This stand is mature with moderate stem decay and defect resulting in a situation where stand growth is being offset 

by decay. Even-aged clear cutting is being prescribed to preclude or minimize the risk of windthrow post-harvest, 

promote natural regeneration by opening up the canopy and minimize defect and disease in the future stand to the 

maximum extent possible.

The legacy standard and guide applies in this VCU. Units 200 and 201 combine to form a potential opening of 81 

acres. This requires that approximately 24 acres for legacy. Legacy must be productive old growth representative of 

the overall composition of the planned harvest area. Legacy was placed to divide the combined opening, provide 

RAW and coincide with RMAs while reducing the visual impact of the harvest. There are 25 legacy acres mapped. 

Silvicultural Prescription: Uneven-age Management Single Tree Selection (Settings as shown on the unit card maps)

Maintain at least 50 percent of the setting pretreatment basal area, based on standing live tree total for the unit, 

uncut. Review the marking guides in the harvest prescription for this unit to obtain basal area by species allowances 

and other specific instructions. Review the introduction to the unit cards for general guidance. 

The uneven-aged single tree selection regeneration method is being prescribed to improve economics and to mitigate 

impacts to wildlife and the watershed. The system is not optimum for timber production.

TIMBER/YARDING: Cable and helicopter yarding to NFS road 3000329.

ENGINEERING/ROADS: No proposed road construction or reconstruction.

BOTANY: No Concerns

INVASIVE SPECIES: No Concerns

FISHERIES: Streams are tributaries to Luck Creek

All streams in unit: Class: IV Flagging: G/W C- Type: HC

Buffer (RMA): none Buffer (RAW): no review needed Protection: Category C

GEOLOGY/KARST: No Concerns

HERITAGE RESOURCES: This unit was investigated per the third amended interagency Programmatic Agreement 

(PA) for historic properties. As specified by the PA, any potential adverse effect on historic properties (if any) was 

mitigated and portions of the Area of Potential Effect will be monitored by a qualified heritage specialist during 

and/or after actual ground disturbance.

SCENERY: Unit is mostly Very Low SIO with 4 acres of Low. No Concerns

RECREATION: No Concerns.

SOILS/WETLANDS: Slopes range from 35 to greater than 72%. Approximately 2 acres of slopes greater than 72% 

is suitable for harvest with full suspension. A 2002 debris avalanche runs downslope in the middle of the southern 

setting. A second debris avalanche enters the northern legacy patch adjacent to the northern setting. No wetlands 

have been mapped in the unit. The soils and wetlands are suitable for a minimum of partial suspension cable yarding 

and helicopter yarding (R10 BMPs 12.5, 13.2 and 13.9 and National Core BMPs Plan-2, Veg-2, Veg-5, and Veg-6).

WILDLIFE: Unit includes average snow deer winter range (entire unit), all of which is also deep snow marten 

habitat/deer winter range. Legacy standard and guideline applies in this VCU, see silviculture section.

456 - Big Thorne Project Record of Decision Appendix 1
3000328

3000329

3000000

3030000

7

4

4

2

6

3

8

2

1

6

3

5

15

1

4.1R

8.1R

9

2

5

5.1L

1968 1968 2006

1972

1969

1973

1992

2005

1969

1987

1987

1969

1968

1971

201

200

200

569

A

A

B

B

C

C

D

D

E

E

F

F

G

G

H

H

I

I

J

J

10 10

9 9

8 8

7 7

6 6

5 5

4 4

3 3

2 2

1 1

Unit Number 200 ROD VCU: 

0 500

Feet

Past Harvest

(Year Origin)

Unsuitable Soils

Riparian Management

Area

Slope > 72%

Other Ownership

Old Growth Habitat LUD

Recreation River LUD

Scenic River LUD

State Highway

National Forest System Road - Open

National Forest System Road - Stored

Non-National Forest 

System Road

Proposed Reconstructed Road

Proposed System Road 

(reopened Decommissioned)

Proposed Temporary Road 

(reopened Decommissioned)

Proposed System Road

Proposed Temporary

Road

Old Growth

Helicopter

Shovel or Cable

Partial Cut

Young Growth

Systematic Strip Thin

Uniform Crown Thin

Class 1 Stream

Class 2 Stream

Class 3 Stream

Class 4 Stream

Lake

100’ Contour

Eagle Nest Buffer

Legacy

Visual Buffer

Deferred (within

Original Unit

Reconnaissance

Area)

581

RR

SR

R:\projects_2010\BigThorneEIS\maps\Unitcards\ROD.mxd 3 June 2013

Appendix 1 - Unit Cards - 457 Appendix 1
Unit 

Number: 201 

Alternatives: ROD Total Unit 

Acres: 116.2

Prescription: Clearcut, 50% 

Removal

VCU 

Number: 581

Yarding System:

Helicopter

Net Harvest

Volume 

(MBF): 2,095

LUD: Timber Production

Summary of Concerns, Responses, BMPs and Mitigation

SILVICULTURE: Existing Condition: Unit 201 has old-growth stand structure. The overstory consists of western 

hemlock as the dominant species. Secondary species include Sitka spruce, and patchy Alaska-cedar with western 

redcedar in the southern half of the unit. The dominant damage is stem decay, indicated by cracks and black seams. 

Mistletoe was rated low. Windthrow risk is moderate. An adjacent past harvest to the east has regeneration at least 5 

feet tall, meeting NFMA requirements for no longer being considered openings.

Silvicultural Prescription: Even-age Management - Clearcut (settings as shown on unit card maps) 

This stand is mature with moderate stem decay and defect resulting in a situation where stand growth is being offset 

by decay. Even-aged clear cutting is being prescribed to preclude or minimize the risk of windthrow post harvest, 

promote natural regeneration by opening up the canopy and minimize defect and disease in the future stand to the 

maximum extent possible.

The legacy standard and guide applies in this VCU. Units 200 and 201 combine to form a potential opening of 81 

acres. This requires that approximately 24 acres of productive old growth representative of the overall composition 

of the planned harvest area and be maintained within the unit 200 and 201 potential opening. Legacy was placed to 

divide the combined opening, provide RAW and coincide with RMAs while reducing the visual impact of the 

harvest. There are 25 legacy acres mapped in Alternatives 2 and 3. 

Silvicultural Prescription: Uneven-age Management Single Tree Selection (settings as shown on unit card)

Maintain at least 50 percent of the setting pretreatment basal area, based on standing live tree total for the unit, 

uncut. Review the marking guides in the harvest prescription for this unit to obtain basal area by species allowances 

and other specific instructions. Review the introduction to the unit cards for general guidance. 

The uneven-aged single tree selection regeneration method is being prescribed in Alternatives 4 and 5 to mitigate 

impacts to wildlife and the watershed and in Alternatives 2 and 3 to improve economics. The system is not optimum 

for timber production.

TIMBER/YARDING: Helicopter yarding to NFS roads 3000329, 3000328 and 3000331.

ENGINEERING/ROADS: No proposed road construction or reconstruction.

BOTANY: No Concerns

INVASIVE SPECIES: No Concerns

FISHERIES: Streams are tributaries to Luck Creek. (Location is depicted from confluence to headwaters)

Stream#: 3 Class: III, IV Flagging: O/W, G/W C- Type: HCD, HCO Concerns: Active erosion

Buffer (RMA): Class III HCD- to the top of the side-slope break. Class IV HCO- none 

Alternatives: ROD Buffer (RAW): no review needed Protection: Category B and C

Stream#: 5 Class: III, IV Flagging: O/W, G/W C- Type: HCV, HCO 

Concerns: Blowdown and active erosion

Buffer (RMA): Class III for HCV- to the top of the side-slope break. Class IV for HCO- none

Alternatives: ROD Buffer (RAW): no review needed Protection: Category B and C

Stream#: 6 Class: III, IV Flagging: O/W, G/W C- Type: HCM, HCO 

Concerns: Blowdown and active erosion

Buffer (RMA): Class III for HCM to the top of the side-slope break. Class IV for HCO- none

Alternatives: ROD Buffer (RAW): no review needed Protection: Category B and C

Stream#: 8 Class: III Flagging: O/W C- Type: HCM Concerns: blowdown

Buffer (RMA): Class III for HCM- to the top of the side-slope break.

Alternatives: ROD Buffer (RAW): no review needed Protection: Category B

458 - Big Thorne Project Record of Decision Appendix 1
Stream#: 9 Class: III Flagging: O/W C- Type: HCD Concerns: blowdown

Buffer (RMA): Class III for HCD- to the top of the side-slope break.

Alternatives: ROD Buffer (RAW): no review needed Protection: Category B

Stream#: 15 Class: III Flagging: O/W C- Type: HCD Concerns: active erosion

Buffer (RMA): Class III for HCD- to the top of the side-slope break.

Alternatives: ROD Buffer (RAW): no review needed Protection: Category B

Stream#: 16 Class: III Flagging: O/W C- Type: HCD Concerns: blowdown and active erosion

Buffer (RMA): Class III for HCD- to the top of the side-slope break.

Alternatives: ROD Buffer (RAW): no review needed Protection: Category B

Stream#: 6.1R (trib of Stream 16) Class: III, IV Flagging: O/W, G/W C- Type: HCM, HCO 

Concerns: blowdown and active erosion 

Buffer (RMA): Class III for HCM- to the top of the side-slope break. Class IV for HCO- none

Alternatives: ROD Buffer (RAW): no review needed Protection: Category B and C

Stream#: 6.2R (trib of Stream 16) Class: III, IV Flagging: O/W, G/W C- Type: HCM 

Concerns: blowdown and active erosion

Buffer (RMA): Class III for HCM- to the top of the side-slope break. Class IV for HCM- none

Alternatives: ROD Buffer (RAW): no review needed Protection: Category B and C

All other streams in unit: Class: IV Flagging: G/W C- Type: HC or MM 

Buffer (RMA): none Buffer (RAW): no review needed Protection: Category C

GEOLOGY/KARST: No Concerns

HERITAGE RESOURCES: This unit was investigated per the third amended interagency Programmatic Agreement 

(PA) for historic properties. As specified by the PA, any potential adverse effect on historic properties (if any) was 

mitigated and portions of the Area of Potential Effect will be monitored by a qualified heritage specialist during 

and/or after actual ground disturbance.

SCENERY: Unit is entirely Very Low SIO. No concerns.

RECREATION: No Concerns.

SOILS/WETLANDS: Slopes range from 25 to 100%. Approximately 9 acres of slopes greater than 72% is suitable 

for harvest with full suspension. A minimum of full suspension would meet soil and wetland resource concerns (R10 

BMPS 12.5, 13.5, and 13.9 and National Core BMPs Plan-2, AqEco-2, AqEco-4, Veg-1, Veg-2, and Veg-5). 

Forested wetlands were identified in the upper elevations of the unit (R10 BMP 12.5 and National Core BMPs 

AqEco-2 and AqEco-4).

WILDLIFE: Unit includes average snow deer winter range (southern 3/4 of unit). Legacy standard and guideline 

applies in this VCU; positioning of Legacy acres covers some deer winter range.

Appendix 1 - Unit Cards - 459 Appendix 1
3000000

3000329

3000328

3000329

1

6

1

3

15

17

5

16

8.1R

5

5.1L

7

19

6.2R

4

2

18

16

9

6

8

6.1R

2

1972

1973

1992

2005

1987

1995

1969

1987

201

200

200

202

A

A

B

B

C

C

D

D

E

E

F

F

G

G

H

H

I

I

J

J

10 10

9 9

8 8

7 7

6 6

5 5

4 4

3 3

2 2

1 1

Unit Number 201 ROD VCU: 

0 500

Feet

Past Harvest

(Year Origin)

Unsuitable Soils

Riparian Management

Area

Slope > 72%

Other Ownership

Old Growth Habitat LUD

Recreation River LUD

Scenic River LUD

State Highway

National Forest System Road - Open

National Forest System Road - Stored

Non-National Forest 

System Road

Proposed Reconstructed Road

Proposed System Road 

(reopened Decommissioned)

Proposed Temporary Road 

(reopened Decommissioned)

Proposed System Road

Proposed Temporary

Road

Old Growth

Helicopter

Shovel or Cable

Partial Cut

Young Growth

Systematic Strip Thin

Uniform Crown Thin

Class 1 Stream

Class 2 Stream

Class 3 Stream

Class 4 Stream

Lake

100’ Contour

Eagle Nest Buffer

Legacy

Visual Buffer

Deferred (within

Original Unit

Reconnaissance

Area)

581

RR

SR

R:\projects_2010\BigThorneEIS\maps\Unitcards\ROD.mxd 3 June 2013

460 - Big Thorne Project Record of Decision Appendix 1
Unit 

Number: 202

Alternatives: ROD Total Unit 

Acres: 51.1

Prescription: Clearcut

VCU 

Number: 581

Yarding System:

Helicopter

Net Harvest

Volume 

(MBF): 1,473

LUD: Timber Production

Summary of Concerns, Responses, BMPs and Mitigation

SILVICULTURE: Existing Condition: Unit 202 has old-growth stand structure with an overstory composition of 

western hemlock, western redcedar, Sitka spruce and Alaska-cedar. Moderate heart rot and stem decay are the 

primary damages. Mistletoe is low. Windthrow risk is moderate. This is a mature stand with static to declining 

growth. All adjacent past harvest areas have regeneration at least 5 feet tall, meeting NFMA requirements for no 

longer being considered openings.

Silvicultural Prescription: Even-age Management – Clearcut 

This stand is mature with moderate stem decay and defect resulting in a situation where stand growth is being offset 

by decay. Even-aged clear cutting is being prescribed to preclude or minimize the risk of windthrow post harvest, 

promote natural regeneration by opening up the canopy and minimize defect and disease in the future stand to the 

maximum extent possible.

The legacy standard and guide applies in this VCU. This requires that approximately 22 acres of productive old 

growth representative of the overall composition of the planned harvest area be maintained. Legacy was placed to 

supplement RMAs and add RAW. Total mapped legacy is approximately 22 acres. 

TIMBER/YARDING: Helicopter yarding to NFS roads 3000331 and 3000334.

ENGINEERING/ROADS: No proposed road construction or reconstruction.

BOTANY: No Concerns

INVASIVE SPECIES: No Concerns

FISHERIES: Streams are tributaries to Luck Creek

Stream#: 17 Class: III, IV Flagging: O/W, G/W C- Type: HCD, HCO 

Concerns: blowdown and active erosion

Buffer (RMA): Class III for HCD- to the top of the side-slope break. Class IV for HCO- none 

Alternatives: ROD Buffer (RAW): no review needed Protection: Category B and C

Stream#: 19 Class: III, IV Flagging: O/W, G/W C- Type: HCD, HCO 

Concerns: Blowdown and active erosion

Buffer (RMA): Class III for HCD- to the top of the side-slope break. Class IV for HCO- none 

Alternatives: ROD Buffer (RAW): no review needed Protection: Category B and C

Stream#: 23 Class: III, IV Flagging: O/W, G/W C- Type: HCM, HCO 

Concerns: Blowdown and active erosion, steep side-slopes with shallow soils and exposed bedrock

Buffer (RMA): Class III for HCM- to the top of the side-slope break. Class IV for HCO- none

Alternatives: ROD Buffer (RAW): no review needed Protection: Category B and C

Stream#: 24 Class: III Flagging: O/W C- Type: HCM, HCD 

Concerns: blowdown and active erosion, steep side-slopes with shallow soils and exposed bedrock

Buffer (RMA): Class III for HCM and HCD- to the top of the side-slope break.

Alternatives: ROD Buffer (RAW): no review needed Protection: Category B

Stream#: 45 Class: III Flagging: O/W C- Type: HCM Concerns: none

Buffer (RMA): Class III for HCM- to the top of the side-slope break. 

Alternatives: ROD Buffer (RAW): no review needed Protection: Category B

All other streams in unit: Class: IV Flagging: G/W C- Type: HC

Buffer (RMA): none Buffer (RAW): no review needed Protection: Category C

GEOLOGY/KARST: No Concerns

HERITAGE RESOURCES: This unit was investigated per the third amended interagency Programmatic Agreement 

Appendix 1 - Unit Cards - 461 Appendix 1
(PA) for historic properties. As specified by the PA, any potential adverse effect on historic properties (if any) was 

mitigated and portions of the Area of Potential Effect will be monitored by a qualified heritage specialist during 

and/or after actual ground disturbance.

SCENERY: Unit is entirely Very Low SIO. No concerns.

RECREATION: No Concerns.

SOILS/WETLANDS: Slopes range from 35 to 110%. Approximately 20 acres of slopes greater than 72% is suitable 

for harvest with full suspension. A minimum of full suspension would meet soil and wetland resource concerns (R10 

BMPS 12.5, 13.5, and 13.9 and National Core BMPs Plan-2, AqEco-2, AqEco-4, Veg-1, Veg-2, and Veg-5). Minor 

areas of emergent short sedge fens were identified in the upper elevations of the unit (R10 BMP 12.5 and National 

Core BMPs AqEco-2 and AqEco-4). An alder re-vegetated debris torrent initiated near the upper unit boundary and 

extends below the unit. This debris torrent can be operated around.

WILDLIFE: Unit includes average snow deer winter range (eastern 1⁄2 of unit). Legacy standard and guideline

applies in this VCU; positioning of Legacy acres covers some deer winter range.

462 - Big Thorne Project Record of Decision Appendix 1
3000334

3000328

3000000

6.1

29.1L

29

19

27

18

31

33

32

30

16

23

26

29

45

29.2L

25

17

24

1973

1988

1995

1973

1972

202

202

202

201

A

A

B

B

C

C

D

D

E

E

F

F

G

G

H

H

I

I

J

J

10 10

9 9

8 8

7 7

6 6

5 5

4 4

3 3

2 2

1 1

Unit Number 202 ROD VCU: 

0 500

Feet

Past Harvest

(Year Origin)

Unsuitable Soils

Riparian Management

Area

Slope > 72%

Other Ownership

Old Growth Habitat LUD

Recreation River LUD

Scenic River LUD

State Highway

National Forest System Road - Open

National Forest System Road - Stored

Non-National Forest 

System Road

Proposed Reconstructed Road

Proposed System Road 

(reopened Decommissioned)

Proposed Temporary Road 

(reopened Decommissioned)

Proposed System Road

Proposed Temporary

Road

Old Growth

Helicopter

Shovel or Cable

Partial Cut

Young Growth

Systematic Strip Thin

Uniform Crown Thin

Class 1 Stream

Class 2 Stream

Class 3 Stream

Class 4 Stream

Lake

100’ Contour

Eagle Nest Buffer

Legacy

Visual Buffer

Deferred (within

Original Unit

Reconnaissance

Area)

581

RR

SR

R:\projects_2010\BigThorneEIS\maps\Unitcards\ROD.mxd 3 June 2013

Appendix 1 - Unit Cards - 463 Appendix 1
Unit 

Number: 203

Alternatives: ROD Total Unit 

Acres: 67.7

Prescription: Clearcut and 50% 

Removal

VCU 

Number: 581

Yarding System:

Helicopter

Net Harvest

Volume 

(MBF): 1,896

LUD: Timber Production

Summary of Concerns, Responses, BMPs and Mitigation

SILVICULTURE: Existing Condition: This unit is old-growth timber with the overstory consisting primarily of 

western hemlock, Alaska-cedar and Sitka spruce. Mountain hemlock are abundant in the higher elevations. The unit 

has over-mature timber with moderate stem decay and defects. Mistletoe is low. Windthrow risk is moderate. All 

adjacent past harvest areas have regeneration at least 5 feet tall, meeting NFMA requirements for no longer being 

considered openings.

Silvicultural Prescription: Even-age Management – Clearcut (settings as shown on unit card maps)

This stand is mature with moderate stem decay and defect resulting in a situation where stand growth is being offset 

by decay. Even-aged clear cutting is being prescribed to preclude or minimize the risk of windthrow post harvest, 

promote natural regeneration by opening up the canopy and minimize defect and disease in the future stand to the 

maximum extent possible.

The legacy standard and guide applies in this VCU. This requires that approximately 20 acres of productive old 

growth representative of the overall composition of the planned harvest area be maintained. Legacy is planned for 

unsuitable soils and RMAs. Total mapped legacy is approximately 23 acres. 

Silvicultural Prescription: Uneven-age Management Single Tree Selection (settings as shown on unit card maps)

Maintain at least 50 percent of the setting pretreatment basal area, based on standing live tree total for the unit, 

uncut. Review the marking guides in the harvest prescription for this unit to obtain basal area by species allowances 

and other specific instructions. Review the introduction to the unit cards for general guidance. 

The uneven-aged single tree selection regeneration method is being prescribed to improve economics and provide 

RAW along streams. The system is not optimum for timber production. 

TIMBER/YARDING: Helicopter yarding to NFS roads 3000340 and 3000000.

ENGINEERING/ROADS: No proposed road construction or reconstruction.

BOTANY: No Concerns

INVASIVE SPECIES: No Concerns

FISHERIES: Streams are tributaries to Luck Creek.

Stream#: 6 Class: III, IV Flagging: O/W, G/W C- Type: HCD, HCO 

Concerns: blowdown and active erosion

Buffer (RMA): Class III for HCD- to the top of the side-slope break. Class IV for HCO- none

Alternatives: ROD Buffer (RAW): no review needed Protection: Category B and C

Stream#: 10 Class: III, IV Flagging: O/W, G/W C- Type: HCM, HCD 

Concerns: blowdown and active erosion in Class III, steep side-slopes with shallow soils and exposed bedrock. 

Buffer (RMA): Class III for HCM- to the top of the side-slope break. Class IV for HCD- none

Alternatives: ROD Buffer (RAW): no review required Protection: Category B and C

Stream#: 20 Class: III, IV Flagging: O/W, G/W C- Type: HCD, HCM 

Concerns: blowdown and active erosion in Class III, steep side-slopes with shallow soils and exposed bedrock. 

Buffer (RMA): Class III for HCD- to the top of the side-slope break. Class IV for HCM- none

Alternatives: ROD Buffer (RAW): no review needed Protection: Category B and C

All other streams in unit: Class: IV Flagging: G/W C- Type: HC or MM 

Buffer (RMA): none Buffer (RAW): no review needed Protection: Category C

GEOLOGY/KARST: No Concerns

HERITAGE RESOURCES: This unit was investigated per the third amended interagency Programmatic Agreement 

(PA) for historic properties. As specified by the PA, any potential adverse effect on historic properties (if any) was 

mitigated and portions of the Area of Potential Effect will be monitored by a qualified heritage specialist during 

464 - Big Thorne Project Record of Decision Appendix 1
and/or after actual ground disturbance.

SCENERY: No Concerns.

RECREATION: No Concerns.

SOILS/WETLANDS: Slopes range from 10 to 75%. The original unit was modified to exclude about 26 acres of 

extremely steep slopes, high landslide potential, and colluvial activity. Approximately 2 acres of slopes greater than 

72% is suitable for harvest with full suspension. A minimum of full suspension would meet soil and wetland 

resource concerns (R10 BMPS 12.5, 13.5, and 13.9 and National Core BMPs Plan-2, AqEco-2, AqEco-4, Veg-1, 

Veg-2, and Veg-5). Small emergent sedge fens were located in the center of the unit surrounded by forested 

wetlands. Forested wetlands were also identified in the northeastern corner of the unit (R10 BMP 12.5 and National 

Core BMPs AqEco-2 and AqEco-4).

WILDLIFE: Unit includes average snow deer winter range (entire unit). Legacy standard and guideline applies in 

this VCU; positioning of Legacy acres covers some deer winter range.

Appendix 1 - Unit Cards - 465 Appendix 1
3000336

3000000

1.20R

1

6.2R

1.11R.1

6.1R

6.1L

6.2L

1.11R.1R.1R

7

8

20

1. 20R

10

1.20R.3R

6

10

1.10 R

1.11R.1R

1

1

1.1 R

1973

1972

1987

1994

1994

1974

204

206

203

A

A

B

B

C

C

D

D

E

E

F

F

G

G

H

H

I

I

J

J

10 10

9 9

8 8

7 7

6 6

5 5

4 4

3 3

2 2

1 1

Unit Number 203 ROD VCU: 

0 500

Feet

Past Harvest

(Year Origin)

Unsuitable Soils

Riparian Management

Area

Slope > 72%

Other Ownership

Old Growth Habitat LUD

Recreation River LUD

Scenic River LUD

State Highway

National Forest System Road - Open

National Forest System Road - Stored

Non-National Forest 

System Road

Proposed Reconstructed Road

Proposed System Road 

(reopened Decommissioned)

Proposed Temporary Road 

(reopened Decommissioned)

Proposed System Road

Proposed Temporary

Road

Old Growth

Helicopter

Shovel or Cable

Partial Cut

Young Growth

Systematic Strip Thin

Uniform Crown Thin

Class 1 Stream

Class 2 Stream

Class 3 Stream

Class 4 Stream

Lake

100’ Contour

Eagle Nest Buffer

Legacy

Visual Buffer

Deferred (within

Original Unit

Reconnaissance

Area)

574,581

RR

SR

R:\projects_2010\BigThorneEIS\maps\Unitcards\ROD.mxd 3 June 2013

466 - Big Thorne Project Record of Decision Appendix 1
Unit 

Number: 204

Alternatives: ROD Total Unit 

Acres: 8.9

Prescription: Clearcut

VCU 

Number: 581

Yarding System:

Shovel

Net Harvest

Volume 

(MBF): 176

LUD: Timber Production

Summary of Concerns, Responses, BMPs and Mitigation

SILVICULTURE: Existing Condition: This unit has old-growth structure. The overstory consists of a mixture of 

western hemlock and western redcedar. Sitka spruce are present in lesser amounts. The main damage is stem form 

with light to moderate stem decay. Overall the average defect rating for the whole unit is moderate. Mistletoe was 

rated as low. Windthrow risk is moderate. All adjacent past harvest areas have regeneration at least 5 feet tall, 

meeting NFMA requirements for no longer being considered openings.

Silvicultural Prescription: Even-age Management - Clearcut

This stand is mature with moderate levels of decay and defect resulting in a situation where stand growth is being 

offset by decay. Even-aged clear cutting is being prescribed to preclude or minimize the risk of windthrow postharvest, promote natural regeneration by opening up the canopy and minimize defect and disease in the future stand 

to the maximum extent possible.

The legacy standard and guide applies in this VCU. The potential opening is 20 acres. There is 11 acres of 

productive old growth representative of the overall composition of the planned harvest mapped within RMAs. 

TIMBER/YARDING: Shovel yarding to NFS road 3000000.

ENGINEERING/ROADS: No proposed road construction or reconstruction.

BOTANY: No Concerns

INVASIVE SPECIES: No Concerns

FISHERIES: Streams are tributaries to Luck Creek

Stream#: 1.10R Class: I Flagging: B/W C- Type: PAO Concerns: none

Buffer (RMA): Class I for PAO- greater of 100 feet, flood plain, riparian vegetation or soils, or riparian associated 

wetland fens. 

Alternatives: ROD Buffer (RAW): no review needed Protection: Category A

Stream#: 1.11R.1R Class: I Flagging: B/W C- Type: FPO, FPS, PAB, AFM 

Concerns: extreme braiding present

Buffer (RMA): Class I for FPO and FPS- greater of 130 feet, flood plain, riparian vegetation or soils, or riparian 

associated wetland fens. Class I for PAB- greater of 100 feet, flood plain, riparian vegetation or soils, or riparian 

associated wetland fens. Class I for AFM- greater of 140 feet or active portion of alluvial fan.

Alternatives: ROD Buffer (RAW): no review needed Protection: Category A

Stream#: 1.11R.1R.1R Class: I Flagging: B/W C- Type: MMO Concerns: none

Buffer (RMA): Class I for MMO- greater of 120 feet, flood plain, riparian vegetation or soils, or riparian associated 

wetland fens.

Alternatives: ROD Buffer (RAW): no review needed Protection: Category A

GEOLOGY/KARST: No Concerns

HERITAGE RESOURCES: This unit was investigated per the third amended interagency Programmatic Agreement 

(PA) for historic properties. As specified by the PA, any potential adverse effect on historic properties (if any) was 

mitigated and portions of the Area of Potential Effect will be monitored by a qualified heritage specialist during 

and/or after actual ground disturbance.

SCENERY: No Concerns.

RECREATION: No Concerns.

SOILS/WETLANDS: Slopes are gentle. Forested wetlands are found throughout the unit (R10 BMP 12.5 and 

National Core BMPs AqEco-2 and AqEco-4). The soils and wetlands are suitable for shovel yarding. Follow shovel 

yarding guidelines outlined in the introductions to unit cards (R10 BMP 13.9 and National Core BMPs Plan-2, Veg2, and Veg-4).

Appendix 1 - Unit Cards - 467 Appendix 1
WILDLIFE: Unit includes average snow deer winter range (entire unit). Legacy standard and guideline applies in 

this VCU, however there are no requirements for this unit because it is less than 20 acres.

468 - Big Thorne Project Record of Decision Appendix 1
3000341

3000000

3000340

3000336

3000331

1.11R.1R

18

18

1.11R.1 R

1.1 R

8

1

18

6.2R

15

6.1R

6.1L

1

6.2L

1.20R

1.11R.1R.1R

7

14

20

10

1.20 R.3R

1.11

R

16

6

13

1.10 R

1973

1973

1987

1973

1974

1974

1974

1974

1991

1974

203

204

A

A

B

B

C

C

D

D

E

E

F

F

G

G

H

H

I

I

J

J

10 10

9 9

8 8

7 7

6 6

5 5

4 4

3 3

2 2

1 1

Unit Number 204 ROD VCU: 

0 500

Feet

Past Harvest

(Year Origin)

Unsuitable Soils

Riparian Management

Area

Slope > 72%

Other Ownership

Old Growth Habitat LUD

Recreation River LUD

Scenic River LUD

State Highway

National Forest System Road - Open

National Forest System Road - Stored

Non-National Forest 

System Road

Proposed Reconstructed Road

Proposed System Road 

(reopened Decommissioned)

Proposed Temporary Road 

(reopened Decommissioned)

Proposed System Road

Proposed Temporary

Road

Old Growth

Helicopter

Shovel or Cable

Partial Cut

Young Growth

Systematic Strip Thin

Uniform Crown Thin

Class 1 Stream

Class 2 Stream

Class 3 Stream

Class 4 Stream

Lake

100’ Contour

Eagle Nest Buffer

Legacy

Visual Buffer

Deferred (within

Original Unit

Reconnaissance

Area)

581

RR

SR

R:\projects_2010\BigThorneEIS\maps\Unitcards\ROD.mxd 3 June 2013

Appendix 1 - Unit Cards - 469 Appendix 1
Unit 

Number: 206

Alternatives: ROD Total Unit 

Acres: 3.6

Prescription: Clearcut

VCU 

Number: 581

Yarding System:

Helicopter

Net Harvest

Volume 

(MBF): 83

LUD: Timber Production

Summary of Concerns, Responses, BMPs and Mitigation

SILVICULTURE: Existing Condition: This unit has old-growth stand structure. The overstory consists mostly of 

western Hemlock and Sitka Spruce. The major damage agent is stem decay. Mistletoe is low. Windthrow risk is 

high. There is extensive recent windthrow in the unit. All adjacent past harvest areas have regeneration at least 5 feet 

tall, meeting NFMA requirements for no longer being considered openings.

Silvicultural Prescription: Even-age Management - Clearcut

This stand is mature with moderate levels of decay and defect resulting in a situation where stand growth is being 

offset by decay. Even-aged clear cutting is being prescribed to preclude or minimize the risk of windthrow postharvest, promote natural regeneration by opening up the canopy and minimize defect and disease in the future stand 

to the maximum extent possible.

The legacy standard and guide applies in this VCU; however, the potential opening is less than 20 acres. No legacy 

set-aside is required.

TIMBER/YARDING: Helicopter yarding to NFS road 3000000.

ENGINEERING/ROADS: No proposed road construction or reconstruction.

BOTANY: No Concerns

INVASIVE SPECIES: No Concerns

FISHERIES: Streams are tributaries to Luck Creek. (Location is depicted from confluence to headwaters)

Stream#: 1 Class: I Flagging: B/W C- Type: PAM Concerns: none

Buffer (RMA): Class I for PAM- greater of 100 feet, flood plain, riparian vegetation or soils, or riparian associated 

wetland fens. 

Alternatives: ROD Buffer (RAW): review required for north, west, and east exposure Protection: Category A

Stream#: 1.1R Class: I Flagging: B/W C- Type: PAS, PAB Concerns: blowdown

Buffer (RMA): Class I for PAS and PAB- greater of 100 feet, flood plain, riparian vegetation or soils, or riparian 

associated wetland fens.

Alternatives: ROD Buffer (RAW): review required for north, west, and east exposure Protection: Category A 

GEOLOGY/KARST: No Concerns

HERITAGE RESOURCES: This unit was investigated per the third amended interagency Programmatic Agreement 

(PA) for historic properties. As specified by the PA, any potential adverse effect on historic properties (if any) was 

mitigated and portions of the Area of Potential Effect will be monitored by a qualified heritage specialist during 

and/or after actual ground disturbance.

SCENERY: No Concerns.

RECREATION: No Concerns.

SOILS/WETLANDS: Slopes are gentle. Forested wetlands are found throughout the unit (R10 BMP 12.5 and 

National Core BMPs AqEco-2 and AqEco-4). A minimum of partial suspension would meet soil and wetland 

resource concerns (R10 BMPS 12.5, 13.5, and 13.9 and National Core BMPs Plan-2, AqEco-2, AqEco-4, Veg-1, 

Veg-2, and Veg-5).

WILDLIFE: Unit includes average snow deer winter range (entire unit). Legacy standard and guideline applies in 

this VCU, however there are no requirements for this unit because it is less than 20 acres.

470 - Big Thorne Project Record of Decision Appendix 1
3000331

3000000

6.2R

6.1R

6.2L

10

7

20

10

6

1.10 R

1 1.1 R

14

1

1988

1992

1973

1972

1972

1973

1972

1992

1973

1987

1973

1973

202

204

206

203

A

A

B

B

C

C

D

D

E

E

F

F

G

G

H

H

I

I

J

J

10 10

9 9

8 8

7 7

6 6

5 5

4 4

3 3

2 2

1 1

Unit Number 206 ROD VCU: 

0 500

Feet

Past Harvest

(Year Origin)

Unsuitable Soils

Riparian Management

Area

Slope > 72%

Other Ownership

Old Growth Habitat LUD

Recreation River LUD

Scenic River LUD

State Highway

National Forest System Road - Open

National Forest System Road - Stored

Non-National Forest 

System Road

Proposed Reconstructed Road

Proposed System Road 

(reopened Decommissioned)

Proposed Temporary Road 

(reopened Decommissioned)

Proposed System Road

Proposed Temporary

Road

Old Growth

Helicopter

Shovel or Cable

Partial Cut

Young Growth

Systematic Strip Thin

Uniform Crown Thin

Class 1 Stream

Class 2 Stream

Class 3 Stream

Class 4 Stream

Lake

100’ Contour

Eagle Nest Buffer

Legacy

Visual Buffer

Deferred (within

Original Unit

Reconnaissance

Area)

581

RR

SR

R:\projects_2010\BigThorneEIS\maps\Unitcards\ROD.mxd 3 June 2013

Appendix 1 - Unit Cards - 471 Appendix 1
Unit 

Number: 207

Alternatives: ROD Total Unit 

Acres: 14.6

Prescription: Clearcut

VCU 

Number: 582 

Yarding System:

Cable

Net Harvest

Volume 

(MBF): 523

LUD: Modified Landscape

Summary of Concerns, Responses, BMPs and Mitigation

SILVICULTURE: Existing Condition: Unit 207 has old-growth stand structure with an overstory consisting of 

western hemlock and western redcedar. Sitka spruce and Alaska-cedar are secondary components. This is a mature 

stand with moderate to heavy areas of mistletoe, stem decay and breakage. Windthrow risk is high. All adjacent 

past harvest areas have regeneration at least 5 feet tall, meeting NFMA requirements for no longer being considered 

openings.

Silvicultural Prescription: Even-age Management - Clearcut

This stand is mature with moderate to heavy levels of decay and defect resulting in a situation where stand growth is 

being offset by decay. Even-aged clear cutting is being prescribed to preclude or minimize the risk of windthrow 

post-harvest, promote natural regeneration by opening up the canopy and minimize defect and disease in the future 

stand to the maximum extent possible.

TIMBER/YARDING: Cable yarding to the proposed temporary road.

ENGINEERING/ROADS: Unit is accessed by reconstruction of NFS road 3030100, totaling 12,000 feet and a 

proposed temporary road of 1,600 feet; approximately 200 feet of this road will be constructed over 

decommissioned road bed. NFS road 3030100 also is used to access Units 464, 465, 466, 577, 578, 212, and 213. 

See road card for information on NFS roads.

BOTANY: No Concerns

INVASIVE SPECIES: No Concerns

FISHERIES: Streams drain to Clarence Strait.

All streams in unit: Class: IV Flagging: G/W C- Type: HC

Buffer (RMA): none Buffer (RAW): no review needed Protection: Category C

Temporary roads for Unit 207: One Class IV stream crossing. If any additional stream crossings are found, 

crossings structures and locations will be approved by USFS, in consultation with fisheries biologist or hydrologist, 

prior to construction (BMP 14.17). During construction of temporary roads implement BMPs 12.17, 13.10, 13.11, 

13.16, 14.3, and 14.5.

GEOLOGY/KARST: No Concerns

HERITAGE RESOURCES: This unit was investigated per the third amended interagency Programmatic Agreement 

(PA) for historic properties. As specified by the PA, any potential adverse effect on historic properties (if any) was 

mitigated and portions of the Area of Potential Effect will be monitored by a qualified heritage specialist during 

and/or after actual ground disturbance.

SCENERY: No Concerns.

RECREATION: No concerns, but unit is adjacent to the Ratz Roadless Area along southeast border.

SOILS/WETLANDS: Slopes range from 5 to 70%. No slopes greater than 72% were identified. Intermittent 

forested wetlands were identified (R10 BMP 12.5 and National Core BMPs AqEco-2 and AqEco-4). The soils and 

wetlands are suitable with a minimum of partial suspension cable yarding or shovel yarding and should follow R10 

BMPs 12.5, 13.2 and 13.9 and National Core BMPs Plan-2, Veg-2, Veg-4, Veg-5, and Veg-6. Follow shovel 

yarding guidelines outlined in the introductions to unit cards (R10 BMP 13.9 and National Core Veg-4).

The proposed road line crosses about 1⁄2 acre of forested wetland. Wetland avoidance is not feasible due to the 

existing road location and slopes. Provide adequate cross drainage, remove drainage structures, and close road after 

harvest. Follow R10 BMPs12.5 and 14.9 and National Core BMPs AqEco-2, AqEco-4, Road-2, and Road-7.

WILDLIFE: Unit includes average snow deer winter range (entire unit), some of which is also deep snow marten 

habitat/deer winter range (eastern 3/4 of unit). Loons observed in small lake to west. Legacy standard and guideline 

does not apply in this VCU.

Old-growth Reserve (OGR) Boundary

OGR was modified acres but is still to the south of unit. 

472 - Big Thorne Project Record of Decision Appendix 1
3030100

3030100

11

9.3L

9 4L .

9.2R

12.1L

10

9.5R

9.1L.1R

2

9

8

12

9

1

9.1L

1969

1969

207

577

578

A

A

B

B

C

C

D

D

E

E

F

F

G

G

H

H

I

I

J

J

10 10

9 9

8 8

7 7

6 6

5 5

4 4

3 3

2 2

1 1

Unit Number 207 ROD VCU: 

0 500

Feet

Past Harvest

(Year Origin)

Unsuitable Soils

Riparian Management

Area

Slope > 72%

Other Ownership

Old Growth Habitat LUD

Recreation River LUD

Scenic River LUD

State Highway

National Forest System Road - Open

National Forest System Road - Stored

Non-National Forest 

System Road

Proposed Reconstructed Road

Proposed System Road 

(reopened Decommissioned)

Proposed Temporary Road 

(reopened Decommissioned)

Proposed System Road

Proposed Temporary

Road

Old Growth

Helicopter

Shovel or Cable

Partial Cut

Young Growth

Systematic Strip Thin

Uniform Crown Thin

Class 1 Stream

Class 2 Stream

Class 3 Stream

Class 4 Stream

Lake

100’ Contour

Eagle Nest Buffer

Legacy

Visual Buffer

Deferred (within

Original Unit

Reconnaissance

Area)

582

RR

SR

R:\projects_2010\BigThorneEIS\maps\Unitcards\ROD.mxd 3 June 2013

Appendix 1 - Unit Cards - 473 Appendix 1
Unit 

Number: 360 

Alternatives: ROD Total Unit 

Acres: 37.6 

Prescription: Clearcut 

VCU 

Number: 595 

Yarding System: 

Cable, Shovel, Helicopter 

Net Harvest 

Volume 

(MBF): 595 

LUD: Modified Landscape, 

Timber Production 

Summary of Concerns, Responses, BMPs and Mitigation 

SILVICULTURE: Existing Condition: Unit 360 is predominantly a western hemlock stand that transitions to 

western hemlock and Alaska-cedar in the upper elevations. Old-growth stand structure dominates. Light to moderate 

windthrow, moderate defect, and a common incidence of mistletoe defines the health of the stand. All adjacent past 

harvest areas have regeneration at least 5 feet tall, meeting NFMA requirements for no longer being considered 

openings. 

Silvicultural Prescription: Even-age Management - Clearcut 

This stand is mature with moderate to levels of decay and defect resulting in a situation where stand growth is being 

offset by decay. Even-aged clear cutting is being prescribed to preclude or minimize the risk of windthrow postharvest, promote natural regeneration by opening up the canopy and minimize defect and disease in the future stand 

to the maximum extent possible. 

TIMBER/YARDING: Alternative 3: Cable and shovel settings yard to the proposed temporary roads. Helicopter 

settings yard to the proposed temporary roads and NFS road 2000440 in Unit 406. 

ENGINEERING/ROADS: Unit is accessed by two proposed temporary roads, totaling 2,500 feet. 

BOTANY: No Concerns 

INVASIVE SPECIES: No Concerns 

FISHERIES: Streams are tributaries to Steelhead Creek. Characteristics for Streams A1.North and A1.South do not 

include project-specific, field-verified information. This information will be collected prior to implementation.

Stream#: 1 Class: I Flagging: B/W C- Type: MMM Concerns: none known 

Buffer (RMA): Class I for MMM- greater of 120 feet or flood plain, riparian vegetation or soils, or riparian 

associated wetland fens. 

Alternatives: ROD Buffer (RAW): no review needed Protection: Category A 

Stream#: 1.2R Class: I, II, IV Flagging: B/W, G/W C- Type: HCL, HCO Concerns: none 

Buffer (RMA): Class I and II for HCL- greater of 100 feet or to top of side-slope break. Class IV for HCO- none 

Alternatives: ROD Buffer (RAW): no review needed Protection: Category A and C 

Stream#: 1.2R.1R Class: I Flagging: B/W C- Type: HCO Concerns: none 

Buffer (RMA): Class I for HCO- greater of 100 feet or to top of side-slope break. 

Alternatives: ROD Buffer (RAW): no review needed Protection: Category A 

Stream#: A1.North Class: III Flagging: O/W C- Type: HCD Concerns: not field verified

Buffer (RMA): Class III for HCD- to the top of the side-slope break. 

Alternatives: ROD Buffer (RAW): no review needed Protection: Category B 

Stream#: A1.South Class: III Flagging: O/W C- Type: HCD Concerns: : not field verified 

Buffer (RMA): Class III for HCD- to the top of the side-slope break. 

Alternatives: ROD Buffer (RAW): no review needed Protection: Category B 

All other streams in unit: Class: IV Flagging: G/W C- Type: HC 

Buffer (RMA): none Buffer (RAW): no review needed Protection: Category C 

Temporary roads for Unit 360: No known stream crossings. If any stream crossings are found, crossings structures 

and locations will be approved by USFS, in consultation with fisheries biologist or hydrologist, prior to construction 

(BMP 14.17). During construction of temporary roads implement BMPs 12.17, 13.10, 13.11, 13.16, 14.3, and 14.5. 

GEOLOGY/KARST: No Concerns 

HERITAGE RESOURCES: This unit was investigated per the third amended interagency Programmatic Agreement 

(PA) for historic properties. As specified by the PA, any potential adverse effect on historic properties (if any) was 

474 - Big Thorne Project Record of Decision Appendix 1
mitigated and portions of the Area of Potential Effect will be monitored by a qualified heritage specialist during 

and/or after actual ground disturbance. 

SCENERY: No Concerns. Unit is entirely in Very Low SIO. 

RECREATION: No Concerns. 

SOILS/WETLANDS: Slopes range from 15 to 110%. Approximately 1⁄2 of an acre of slopes greater than 72% is 

suitable for harvest with partial suspension. About 4 acres were excluded from harvest due to high landslide 

potential, colluvial activity, and extremely steep slopes. Interspersed wetlands were found in the central portion of 

the unit (R10 BMP 12.5 and National Core BMPs AqEco-2 and AqEco-4). The soils and wetlands are suitable for a 

minimum of partial suspension cable yarding and helicopter yarding (R10 BMPs 12.5, 13.2 and 13.9 and National 

Core BMPs Plan-2, Veg-2, Veg-5, and Veg-6). 

The proposed road crosses about 1 acre of forested wetlands. Wetland avoidance is not feasible due to existing road 

location and contours. Provide adequate cross drainage, remove drainage structures, and close road after harvest. 

Follow R10 BMPs12.5 and 14.9 and National Core BMPs AqEco-2, AqEco-4, Road-2, and Road-7. 

WILDLIFE: Unit includes average snow deer winter range (entire unit), some of which is also deep snow marten 

habitat/deer winter range (western 1/3 of unit). Unit is located in an area of known wolf use near Control Lake. 

Legacy standard and guideline does not apply in this VCU. 

Old-growth Reserve (OGR) Boundary 

OGR shifted slightly further west of unit. 

Appendix 1 - Unit Cards - 475 Appendix 1
2000400

2000440

1.2 R

1.5R

1.1R

1.2R.1R

1.6R

1.2R.2R

1.5R

1.1L.10L.3R

1

1.1L.10L

1

1.1L

2003

1991

2003

24

360

407

361

A

A

B

B

C

C

D

D

E

E

F

F

G

G

H

H

I

I

J

J

10 10

9 9

8 8

7 7

6 6

5 5

4 4

3 3

2 2

1 1

Unit Number 360 ROD VCU: 

0 500

Feet

Past Harvest

(Year Origin)

Unsuitable Soils

Riparian Management

Area

Slope > 72%

Other Ownership

Old Growth Habitat LUD

Recreation River LUD

Scenic River LUD

State Highway

National Forest System Road - Open

National Forest System Road - Stored

Non-National Forest 

System Road

Proposed Reconstructed Road

Proposed System Road 

(reopened Decommissioned)

Proposed Temporary Road 

(reopened Decommissioned)

Proposed System Road

Proposed Temporary

Road

Old Growth

Helicopter

Shovel or Cable

Partial Cut

Young Growth

Systematic Strip Thin

Uniform Crown Thin

Class 1 Stream

Class 2 Stream

Class 3 Stream

Class 4 Stream

Lake

100’ Contour

Eagle Nest Buffer

Legacy

Visual Buffer

Deferred (within

Original Unit

Reconnaissance

Area)

595

RR

SR

R:\projects_2010\BigThorneEIS\maps\Unitcards\ROD.mxd 3 June 2013

476 - Big Thorne Project Record of Decision Appendix 1
Unit 

Number: 361

Alternatives: ROD Total Unit 

Acres: 16.9

Prescription: Clearcut 

VCU 

Number: 595

Yarding System:

Helicopter

Net Harvest

Volume 

(MBF): 467

LUD: Modified Landscape, 

Timber Production

Summary of Concerns, Responses, BMPs and Mitigation

SILVICULTURE: Existing Condition: Unit 361 is predominantly a Sitka spruce stand that transitions to western 

hemlock on the northern slopes. Old-growth stand structure dominates. Moderate to high windthrow and past 

weather damage, moderate defect, and moderate mistletoe define the stand. This stand is over-mature with declining 

growth. All adjacent past harvest areas have regeneration at least 5 feet tall, meeting NFMA requirements for no 

longer being considered openings.

Silvicultural Prescription: Even-age Management - Clearcut

This stand is mature with moderate levels of decay and defect resulting in a situation where stand growth is being 

offset by decay. Even-aged clear cutting is being prescribed to preclude or minimize the risk of windthrow postharvest, promote natural regeneration by opening up the canopy and minimize defect and disease in the future stand 

to the maximum extent possible.

TIMBER/YARDING: Helicopter yarding to the proposed temporary road accessing Unit 360 and NFS road 

2000400.

ENGINEERING/ROADS: No proposed road construction or reconstruction.

BOTANY: No Concerns

INVASIVE SPECIES: No Concerns

FISHERIES: No streams found in unit at time of survey. If streams are found during implementations, a fish 

biologist would be notified and appropriate protections would be applied.

GEOLOGY/KARST: No Concerns

HERITAGE RESOURCES: This unit was investigated per the third amended interagency Programmatic Agreement 

(PA) for historic properties. As specified by the PA, any potential adverse effect on historic properties (if any) was 

mitigated and portions of the Area of Potential Effect will be monitored by a qualified heritage specialist during 

and/or after actual ground disturbance.

SCENERY: No Concerns. Unit consists of Low and Very Low SIOs.

RECREATION: No Concerns.

SOILS/WETLANDS: Slopes range from 10 to greater than 72%. Approximately 4 acres of slopes greater than 72% 

is suitable for harvest with partial suspension. About 5 acres were excluded from harvest due to very high landslide 

potential, colluvial activity, and extremely steep wet slopes. Forested wetlands were identified on the benches below 

the cliff line (R10 BMP 12.5 and National Core BMPs AqEco-2 and AqEco-4). In the remainder of the unit, a 

minimum of partial suspension would meet soil and wetland resource concerns (R10 BMPS 12.5, 13.5, and 13.9 and 

National Core BMPs Plan-2, AqEco-2, AqEco-4, Veg-1, Veg-2, and Veg-5).

WILDLIFE: Unit includes average snow deer winter range (entire unit) and is located in an area of known wolf use 

near Control Lake. Legacy standard and guideline does not apply in this VCU.

Old-growth Reserve (OGR) Boundary

OGR boundary shifted further west of unit.

Appendix 1 - Unit Cards - 477 Appendix 1
2000440

2000440

2000400

1.2 R

1.10R

1.5R

1.1R

1.2R.1R

1.6R

1.2R.2R

1. 1L.2L

1.5R

1.1L.1L

1

1

1.1 L.1L

1

1

1.1L

2003

1991

2003

24

25

360

405

407

361

A

A

B

B

C

C

D

D

E

E

F

F

G

G

H

H

I

I

J

J

10 10

9 9

8 8

7 7

6 6

5 5

4 4

3 3

2 2

1 1

Unit Number 361 ROD VCU: 

0 500

Feet

Past Harvest

(Year Origin)

Unsuitable Soils

Riparian Management

Area

Slope > 72%

Other Ownership

Old Growth Habitat LUD

Recreation River LUD

Scenic River LUD

State Highway

National Forest System Road - Open

National Forest System Road - Stored

Non-National Forest 

System Road

Proposed Reconstructed Road

Proposed System Road 

(reopened Decommissioned)

Proposed Temporary Road 

(reopened Decommissioned)

Proposed System Road

Proposed Temporary

Road

Old Growth

Helicopter

Shovel or Cable

Partial Cut

Young Growth

Systematic Strip Thin

Uniform Crown Thin

Class 1 Stream

Class 2 Stream

Class 3 Stream

Class 4 Stream

Lake

100’ Contour

Eagle Nest Buffer

Legacy

Visual Buffer

Deferred (within

Original Unit

Reconnaissance

Area)

595

RR

SR

R:\projects_2010\BigThorneEIS\maps\Unitcards\ROD.mxd 3 June 2013

478 - Big Thorne Project Record of Decision Appendix 1
Unit 

Number: 363

Alternatives: ROD Total Unit 

Acres: 104.4

Prescription: 50% Removal

VCU 

Number: 580

Yarding System:

Helicopter

Net Harvest

Volume 

(MBF): 1,794

LUD: Modified Landscape, 

Timber Production

Summary of Concerns, Responses, BMPs and Mitigation

SILVICULTURE: Existing Condition: This unit consists of old-growth stand structure. The overstory is made up of 

unevenly-spaced, moderately stocked, mature western hemlock and western redcedar, with scattered Alaska-cedar 

and Sitka Spruce. Windthrow risk is moderate. Mistletoe in the stand is low overall. Damages and defects were rated 

as moderate. All adjacent past harvest areas have regeneration at least 5 feet tall, meeting NFMA requirements for 

no longer being considered openings.

Silvicultural Prescription: Uneven-age Management Single Tree Selection 

Maintain at least 50 percent of the setting pretreatment basal area, based on standing live tree total for the unit, 

uncut. Review the marking guides in the harvest prescription for this unit to obtain basal area by species allowances 

and other specific instructions. Review the introduction to the unit cards for general guidance. 

The uneven-aged single tree selection regeneration method is being prescribed to avoid an opening exceeding 100 

acres, mitigate economic concerns and reduce impacts to wildlife and the watershed. The system is not optimum for 

timber production.

TIMBER/YARDING: Helicopter yarding to NFS roads 3015000 and 3015600.

ENGINEERING/ROADS: No proposed road construction or reconstruction.

BOTANY: No Concerns

INVASIVE SPECIES: Two infestations of common tansy located along NFS roads 3015000 and 3015600. These 

infestations have been treated previously; recommend monitoring and retreatment as necessary.

FISHERIES: Streams tributaries to Thorne River

Stream#: 23 Class: III Flagging: O/W C- Type: HCM Concerns: none 

Buffer (RMA): Class III for HCM- to the top of the side-slope break. 

Alternatives: ROD Buffer (RAW): no review needed Protection: Category B

Stream#: 23.1L Class: III, IV Flagging: O/W, G/W C- Type: HCM, HCO Concerns: none

Buffer (RMA): Class III for HCM- to the top of the side-slope break. Class IV for HCO- none 

Alternatives: ROD Buffer (RAW): no review needed Protection: Category B and C

Stream#: 25 Class: III Flagging: O/W C- Type: HCM Concerns: none 

Buffer (RMA): Class III for HCM- to the top of the side-slope break. 

Alternatives: ROD Buffer (RAW): no review needed Protection: Category B

Stream#: 29 Class: III, IV Flagging: O/W, G/W C- Type: HCM, HCO Concerns: none

Buffer (RMA): Class III for HCM- to the top of the side-slope break. Class IV for HCO- none 

Alternatives: ROD Buffer (RAW): no review needed Protection: Category B and C

Stream#: 30 Class: II, III Flagging: B/W, O/W C- Type: AFH, HCM, HCD Concerns: none 

Buffer (RMA): Class II for AFH- greater than 140 feet or to active portion of the alluvial fan. Class III for HCM 

and HCD- to the top of the side-slope break.

Alternatives: ROD Buffer (RAW): no review needed Protection: Category A and B

Stream#: 30.1L Class: II, IV Flagging: B/W, G/W C- Type: HCM, HCO Concerns: none

Buffer (RMA): Class II for HCM-greater of 100 feet or to the top of the side-slope break. Class IV for HCO- none 

Alternatives: ROD Buffer (RAW): no review needed Protection: Category A and C

Stream#: 30.3L Class: III, IV Flagging: O/W, G/W C- Type: HCM, HCO Concerns: none

Buffer (RMA): Class III for HCM- to the top of the side-slope break. Class IV for HCO- none 

Alternatives: ROD Buffer (RAW): no review needed Protection: Category B and C

Appendix 1 - Unit Cards - 479 Appendix 1
All other streams in unit: Class: IV Flagging: G/W C- Type: HC or MM 

Buffer (RMA): none Buffer (RAW): no review needed Protection: Category C

GEOLOGY/KARST: No Concerns

HERITAGE RESOURCES: This unit was investigated per the third amended interagency Programmatic Agreement 

(PA) for historic properties. As specified by the PA, any potential adverse effect on historic properties (if any) was 

mitigated and portions of the Area of Potential Effect will be monitored by a qualified heritage specialist during 

and/or after actual ground disturbance.

SCENERY: Unit consists of about 32 acres of Low and 68 acres of Very Low SIOs. Half or less of the unit may be 

visible from some locations in the Snakey Lakes area. No Concerns.

RECREATION: Unit is about 1 mile from the Scenic River LUD, but is not likely to be visible from any location 

except on the river, at a distance of about 1 1/2 miles or more. No Concerns

SOILS/WETLANDS: Slopes range from 25 to 50%. Forested wetlands are located throughout the unit. Forested 

wetlands were identified in the upper elevations (R10 BMP 12.5 and National Core BMPs AqEco-2 and AqEco-4). 

A minimum of partial suspension would meet soil and wetland resource concerns (R10 BMPS 12.5, 13.5, and 13.9 

and National Core BMPs Plan-2, AqEco-2, AqEco-4, Veg-1, Veg-2, and Veg-5).

WILDLIFE: Unit includes average snow deer winter range (along southern edge of unit). Unit is near the Honker 

large OGR complex. Legacy standard and guideline does not apply in this VCU.

Old-growth Reserve (OGR) Boundary

OGR boundary relocated north and further away from unit. 

480 - Big Thorne Project Record of Decision Appendix 1
3015600

3015000

27

30.1L.1R

23.1L

32.1L

23

26

32.2R

29.1R

28

30.1L

29

24

29.1R.1L

32

30.2L

1.1 R

30.3L

23

25

30

3 0

1976

1988

1976

1988

1987

110

363

395

A

A

B

B

C

C

D

D

E

E

F

F

G

G

H

H

I

I

J

J

10 10

9 9

8 8

7 7

6 6

5 5

4 4

3 3

2 2

1 1

Unit Number 363 ROD VCU: 

0 500

Feet

Past Harvest

(Year Origin)

Unsuitable Soils

Riparian Management

Area

Slope > 72%

Other Ownership

Old Growth Habitat LUD

Recreation River LUD

Scenic River LUD

State Highway

National Forest System Road - Open

National Forest System Road - Stored

Non-National Forest 

System Road

Proposed Reconstructed Road

Proposed System Road 

(reopened Decommissioned)

Proposed Temporary Road 

(reopened Decommissioned)

Proposed System Road

Proposed Temporary

Road

Old Growth

Helicopter

Shovel or Cable

Partial Cut

Young Growth

Systematic Strip Thin

Uniform Crown Thin

Class 1 Stream

Class 2 Stream

Class 3 Stream

Class 4 Stream

Lake

100’ Contour

Eagle Nest Buffer

Legacy

Visual Buffer

Deferred (within

Original Unit

Reconnaissance

Area)

580

RR

SR

R:\projects_2010\BigThorneEIS\maps\Unitcards\ROD.mxd 3 June 2013

Appendix 1 - Unit Cards - 481 Appendix 1
,Unit 

Number: 365

Alternatives: ROD Total Unit 

Acres: 11.2

Prescription: Clearcut 

VCU 

Number: 579

Yarding System:

Shovel

Net Harvest

Volume 

(MBF): 232

LUD: Timber Production

Summary of Concerns, Responses, BMPs and Mitigation

SILVICULTURE: Existing Condition: This unit consists of old-growth stand structure. Windthrow risk is low. 

Mistletoe was generally absent from the stand. Alaska cedar decline was evident with both past and recent mortality. 

The overstory is poorly-stocked, over- mature, western hemlock and Sitka spruce with groups of dead Alaska-cedar 

and scattered western redcedar. Mountain hemlock is also common in the upper elevations. Heavy defects are 

present consisting of stem decay and weather associated cracks and seams. All adjacent past harvest areas have 

regeneration at least 5 feet tall, meeting NFMA requirements for no longer being considered openings.

Silvicultural Objective/Desired Condition: The desired condition for this stand is a highly productive, healthy, 

windfirm stand grown for timber management that retains residual trees as needed to meet standards and guides or 

other objectives.

Silvicultural Prescription: Even-age Management - Clearcut

This stand is mature with heavy levels of decay and defect resulting in a situation where stand growth is being offset 

by decay. Even-aged clear cutting is being prescribed to preclude or minimize the risk of windthrow post-harvest, 

promote natural regeneration by opening up the canopy and minimize defect and disease in the future stand to the 

maximum extent possible.

The legacy standard and guide applies in this VCU; however, the original planned unit is less than 20 acres. No 

legacy set-aside is required.

TIMBER/YARDING: Shovel yarding to the proposed temporary road.

ENGINEERING/ROADS: Unit is accessed by reconstruction of NFS road 3017100, totaling 2,200 feet and 

proposed extension of NFS road 3017100, totaling 700 feet. See road card for information on NFS road. 

BOTANY: No Concerns

INVASIVE SPECIES: No Concerns

FISHERIES: Streams tributaries to Gravelly Creek. Class III portions of Stream 1 and 2 are w/in 60m of unit, but 

were not field-verified. Info is based on GIS information.

Stream#: A1 Class: III, IV Flagging: O/W, G/W C- Type: HCM, HCO Concerns: none 

Buffer (RMA): Class III for HCM- to the top of the side-slope break. Class IV for HCO- none

Alternatives: ROD Buffer (RAW): no review needed Protection: Category B and C

Stream#: A2 Class: III, IV Flagging: O/W, G/W C- Type: HCD, HCO Concerns: none 

Buffer (RMA): Class III for HCD- to the top of the side-slope break. Class IV for HCO- none

Alternatives: ROD Buffer (RAW): no review needed Protection: Category B and C

GEOLOGY/KARST: No Concerns

HERITAGE RESOURCES: This unit was investigated per the third amended interagency Programmatic Agreement 

(PA) for historic properties. As specified by the PA, any potential adverse effect on historic properties (if any) was 

mitigated and portions of the Area of Potential Effect will be monitored by a qualified heritage specialist during 

and/or after actual ground disturbance.

SCENERY: No Concerns.

RECREATION: No Concerns

SOILS/WETLANDS: Slopes range from 20 to 50%. Forested wetlands occur throughout the unit (R10 BMP 12.5 

and National Core BMPs AqEco-2 and AqEco-4). The soils and wetlands are suitable with a minimum of partial 

suspension cable yarding or shovel yarding and should follow R10 BMPs 12.5, 13.2 and 13.9 and National Core 

BMPs Plan-2, Veg-2, Veg-4, Veg-5, and Veg-6. Follow shovel yarding guidelines outlined in the introductions to 

unit cards (R10 BMP 13.9 and National Core Veg-4).

WILDLIFE: Unit includes average snow deer winter range (southern end of unit). Legacy standard and guideline 

applies in this VCU, however there are no requirements for this unit because it is less than 20 acres.

482 - Big Thorne Project Record of Decision Appendix 1
3017170

3017100

3017100

3017200

1

3

2.1R

2

2

1971

1996

1966

1995

1995

120

365

A

A

B

B

C

C

D

D

E

E

F

F

G

G

H

H

I

I

J

J

10 10

9 9

8 8

7 7

6 6

5 5

4 4

3 3

2 2

1 1

Unit Number 365 ROD VCU: 

0 500

Feet

Past Harvest

(Year Origin)

Unsuitable Soils

Riparian Management

Area

Slope > 72%

Other Ownership

Old Growth Habitat LUD

Recreation River LUD

Scenic River LUD

State Highway

National Forest System Road - Open

National Forest System Road - Stored

Non-National Forest 

System Road

Proposed Reconstructed Road

Proposed System Road 

(reopened Decommissioned)

Proposed Temporary Road 

(reopened Decommissioned)

Proposed System Road

Proposed Temporary

Road

Old Growth

Helicopter

Shovel or Cable

Partial Cut

Young Growth

Systematic Strip Thin

Uniform Crown Thin

Class 1 Stream

Class 2 Stream

Class 3 Stream

Class 4 Stream

Lake

100’ Contour

Eagle Nest Buffer

Legacy

Visual Buffer

Deferred (within

Original Unit

Reconnaissance

Area)

579

RR

SR

R:\projects_2010\BigThorneEIS\maps\Unitcards\ROD.mxd 3 June 2013

Appendix 1 - Unit Cards - 483 Appendix 1
Unit 

Number: 368

Alternatives: ROD Total Unit 

Acres: 23.0

Prescription: Clearcut 

VCU 

Number: 579

Yarding System:

Shovel, Helicopter

Net Harvest

Volume 

(MBF): 551

LUD: Modified Landscape, 

Timber Production

Summary of Concerns, Responses, BMPs and Mitigation

SILVICULTURE: Existing Condition: This unit has old-growth structure. Windthrow risk is moderate. Mistletoe 

occurrence in the stand is light. Alaska cedar decline is evident throughout the unit. The overstory is primarily 

mature western hemlock, with Alaska cedar common in the south and Sitka spruce occurring in the northernmost tip 

of the unit. The primary defects are stem decay and stem form defects. All adjacent past harvest areas have 

regeneration at least 5 feet tall, meeting NFMA requirements for no longer being considered openings.

Silvicultural Prescription: Even-age Management – Clearcut 

This stand is mature with heavy stem decay and defect resulting in a situation where stand growth is being offset by 

decay. Even-aged clear cutting is being prescribed to preclude or minimize the risk of windthrow post-harvest, 

promote natural regeneration by opening up the canopy, and minimize defect and disease in the future stand to the 

maximum extent possible.

The legacy standard and guide applies in this VCU. This requires that approximately 10 acres of productive old 

growth representative of the overall composition of the planned harvest area be maintained. Legacy was placed to 

consolidate POG at north end of unit, expanding off the RMA and providing RAW. Also, it was placed to block up 

POG across the north-center of unit to divide opening and maintain east-west connectivity. Total mapped legacy is 

approximately 10 acres. 

TIMBER/YARDING: Shovel settings yard to the proposed temporary road. Helicopter settings yard to NFS road 

3017200 or the proposed temporary road.

ENGINEERING/ROADS: Unit is accessed by a proposed temporary road totaling 1100 feet. This unit is also 

accessed by reconstruction of NFS road 3017200, totaling 11,800 feet. See road card for information.

BOTANY: No Concerns

INVASIVE SPECIES: No Concerns

FISHERIES: Streams tributaries to Gravelly Creek

Stream#: 1 Class: III Flagging: O/W C- Type: HCD, HCM Concerns: none

Buffer (RMA): Class III for HCD and HCM- to the top of the side-slope break. 

Alternatives: ROD Buffer (RAW): no review needed Protection: Category B

All other streams in unit: Class: IV Flagging: G/W C- Type: HC or MM 

Buffer (RMA): none Buffer (RAW): no review needed Protection: Category C

Temporary roads for Unit 368: One Class IV stream crossing. If any additional stream crossings are found, 

crossings structures and locations will be approved by USFS, in consultation with fisheries biologist or hydrologist, 

prior to construction (BMP 14.17). During construction of temporary roads implement BMPs 12.17, 13.10, 13.11, 

13.16, 14.3, and 14.5.

GEOLOGY/KARST: No Concerns

HERITAGE RESOURCES: This unit was investigated per the third amended interagency Programmatic Agreement 

(PA) for historic properties. As specified by the PA, any potential adverse effect on historic properties (if any) was 

mitigated and portions of the Area of Potential Effect will be monitored by a qualified heritage specialist during 

and/or after actual ground disturbance.

SCENERY: No Concerns.

RECREATION: No Concerns

SOILS/WETLANDS: Slopes range from nearly level to 55%. Forested wetlands are located throughout the unit 

(R10 BMP 12.5 and National Core BMPs AqEco-2 and AqEco-4). The soils and wetlands are suitable with a 

minimum of partial suspension cable yarding or shovel yarding and should follow R10 BMPs 12.5, 13.2 and 13.9 

and National Core BMPs Plan-2, Veg-2, Veg-4, Veg-5, and Veg-6. Follow shovel yarding guidelines outlined in the 

introductions to unit cards (R10 BMP 13.9 and National Core Veg-4).

484 - Big Thorne Project Record of Decision Appendix 1
The proposed temporary road crosses about 1⁄2 of acre of forested wetlands. Wetland avoidance is not feasible due to 

existing road location, streams, and contours. Provide adequate cross drainage, remove drainage structures, and 

close road after harvest. Follow R10 BMPs12.5 and 14.9 and National Core BMPs AqEco-2, AqEco-4, Road-2, and 

Road-7.

WILDLIFE: Unit includes average snow deer winter range (entire unit). Legacy standard and guideline applies in 

this VCU; positioning of Legacy acres covers some deer winter range.

Appendix 1 - Unit Cards - 485 Appendix 1
3017300

3017200

3017210

10

1.3L

1.1L

9

1.2L

3

3

4

2

2

1

5

1

1.1L

1

1.2L

1.1L.1L

1995

1993

1963

1971

368

369

528

529

A

A

B

B

C

C

D

D

E

E

F

F

G

G

H

H

I

I

J

J

10 10

9 9

8 8

7 7

6 6

5 5

4 4

3 3

2 2

1 1

Unit Number 368 ROD VCU: 

0 500

Feet

Past Harvest

(Year Origin)

Unsuitable Soils

Riparian Management

Area

Slope > 72%

Other Ownership

Old Growth Habitat LUD

Recreation River LUD

Scenic River LUD

State Highway

National Forest System Road - Open

National Forest System Road - Stored

Non-National Forest 

System Road

Proposed Reconstructed Road

Proposed System Road 

(reopened Decommissioned)

Proposed Temporary Road 

(reopened Decommissioned)

Proposed System Road

Proposed Temporary

Road

Old Growth

Helicopter

Shovel or Cable

Partial Cut

Young Growth

Systematic Strip Thin

Uniform Crown Thin

Class 1 Stream

Class 2 Stream

Class 3 Stream

Class 4 Stream

Lake

100’ Contour

Eagle Nest Buffer

Legacy

Visual Buffer

Deferred (within

Original Unit

Reconnaissance

Area)

579

RR

SR

R:\projects_2010\BigThorneEIS\maps\Unitcards\ROD.mxd 3 June 2013

486 - Big Thorne Project Record of Decision Appendix 1
Unit 

Number: 369 

Alternatives: ROD Total Unit 

Acres: 17.6 

Prescription: Clearcut 

VCU 

Number: 579 

Yarding System: 

Cable, Shovel, Helicopter 

Net Harvest 

Volume 

(MBF): 455 

LUD: Modified Landscape 

Summary of Concerns, Responses, BMPs and Mitigation 

SILVICULTURE: Existing Condition: Unit 369 has old-growth stand structure comprised of mature western 

hemlock, western redcedar, Alaska- cedar and scattered Sitka spruce. Windthrow risk is moderate. Mistletoe 

occurrence is moderate. Stem decay is moderate. All adjacent past harvest areas have regeneration at least 5 feet tall, 

meeting NFMA requirements for no longer being considered openings. 

Silvicultural Prescription: Even-age Management – Clearcut 

This stand is mature with moderate stem decay and defect resulting in a situation where stand growth is being offset 

by decay. Even-aged clear cutting is being prescribed to preclude or minimize the risk of windthrow post-harvest, 

promote natural regeneration by opening up the canopy, and minimize defect and disease in the future stand to the 

maximum extent possible. 

The legacy standard and guide applies in this VCU. This requires that approximately 8 acres of productive old 

growth representative of the overall composition of the planned harvest area be maintained. Legacy was placed to 

consolidate POG at the south and east sides of unit and adjacent to RMA in center and to shorten required roads. 

Total mapped legacy is approximately 7 acres. 

TIMBER/YARDING: Shovel and cable settings yard to the proposed temporary road. 

ENGINEERING/ROADS: Unit is accessed by reconstruction of NFS road 3017200, totaling 11,600 feet and a 

proposed temporary road of 2,000 feet. See road card for information on NFS road. 

BOTANY: No Concerns 

INVASIVE SPECIES: No Concerns 

FISHERIES: Streams tributaries to Gravelly Creek. Characteristics for Stream A do not include project-specific, 

field-verified information. This information will be collected prior to implementation.

Stream#: 3 Class: III, IV Flagging: O/W C- Type: HCL, MMO Concerns: none 

Buffer (RMA): Class III for HCL- to the top of the side-slope break. Class IV for MMO- none 

Alternatives: ROD Buffer (RAW): no review needed Protection: Category B and C 

Stream#: 10 Class: III, IV Flagging: O/W, G/W C- Type: HCD, HCO Concerns: none 

Buffer (RMA): Class III for HCD- to the top of the side-slope break. Class IV for HCO- none 

Alternatives: ROD Buffer (RAW): no review needed Protection: Category B and C 

Stream#: A Class: III Flagging: O/W C- Type: HCM Concerns: not field verified 

Buffer (RMA): Class III for HCM- to the top of the side-slope break. 

Alternatives: ROD Buffer (RAW): no review needed Protection: Category B 

All other streams in unit: Class: IV Flagging: G/W C- Type: HC or MM 

Buffer (RMA): none Buffer (RAW): no review needed Protection: Category C 

Temporary roads for Unit 369: Four Class IV and one Class III stream crossing. If any additional stream crossings 

are found, crossings structures and locations will be approved by USFS, in consultation with fisheries biologist or 

hydrologist, prior to construction (BMP 14.17). During construction of temporary roads implement BMPs 12.17, 

13.10, 13.11, 13.16, 14.3, and 14.5. 

GEOLOGY/KARST: No Concerns 

HERITAGE RESOURCES: This unit was investigated per the third amended interagency Programmatic Agreement 

(PA) for historic properties. As specified by the PA, any potential adverse effect on historic properties (if any) was 

mitigated and portions of the Area of Potential Effect will be monitored by a qualified heritage specialist during 

and/or after actual ground disturbance. 

SCENERY: No Concerns. 

RECREATION: No Concerns 

Appendix 1 - Unit Cards - 487 Appendix 1
SOILS/WETLANDS: Slopes range from 30 to 60%. Forested wetlands are interspersed throughout the unit (R10 

BMP 12.5 and National Core BMPs AqEco-2 and AqEco-4). The soils and wetlands are suitable with a minimum of 

partial suspension cable yarding or shovel yarding and should follow R10 BMPs 12.5, 13.2 and 13.9 and National 

Core BMPs Plan-2, Veg-2, Veg-4, Veg-5, and Veg-6. Follow shovel yarding guidelines outlined in the introductions 

to unit cards (R10 BMP 13.9 and National Core Veg-4). 

The proposed temporary road crosses about 1⁄2 of acre of forested wetlands. Wetland avoidance is not feasible due to 

existing road location and unit boundaries. Provide adequate cross drainage, remove drainage structures, and close 

road after harvest. Follow R10 BMPs12.5 and 14.9 and National Core BMPs AqEco-2, AqEco-4, Road-2, and 

Road-7. 

WILDLIFE: Unit includes average snow deer winter range (entire unit). Legacy standard and guideline applies in 

this VCU; positioning of Legacy acres covers some deer winter range. 

488 - Big Thorne Project Record of Decision Appendix 1
3017000

3017000

3017300

3017200

3017210

3017000

1.1L

1.2L

3

3

4

2

2

1

1.1L.1L

5

10

9

1.3L

1

1.2L

1.1L

1973

1963

1995

1971

529

528

527

369

368

A

A

B

B

C

C

D

D

E

E

F

F

G

G

H

H

I

I

J

J

10 10

9 9

8 8

7 7

6 6

5 5

4 4

3 3

2 2

1 1

Unit Number 369 ROD VCU: 

0 500

Feet

Past Harvest

(Year Origin)

Unsuitable Soils

Riparian Management

Area

Slope > 72%

Other Ownership

Old Growth Habitat LUD

Recreation River LUD

Scenic River LUD

State Highway

National Forest System Road - Open

National Forest System Road - Stored

Non-National Forest 

System Road

Proposed Reconstructed Road

Proposed System Road 

(reopened Decommissioned)

Proposed Temporary Road 

(reopened Decommissioned)

Proposed System Road

Proposed Temporary

Road

Old Growth

Helicopter

Shovel or Cable

Partial Cut

Young Growth

Systematic Strip Thin

Uniform Crown Thin

Class 1 Stream

Class 2 Stream

Class 3 Stream

Class 4 Stream

Lake

100’ Contour

Eagle Nest Buffer

Legacy

Visual Buffer

Deferred (within

Original Unit

Reconnaissance

Area)

579

RR

SR

R:\projects_2010\BigThorneEIS\maps\Unitcards\ROD.mxd 3 June 2013

Appendix 1 - Unit Cards - 489 Appendix 1
Unit 

Number: 370

Alternatives: ROD Total Unit 

Acres: 19.0

Prescription: Clearcut 

VCU 

Number: 586

Yarding System:

Cable, Shovel, Helicopter

Net Harvest

Volume 

(MBF): 653

LUD: Modified Landscape

Summary of Concerns, Responses, BMPs and Mitigation

SILVICULTURE: Existing Condition: This unit has old-growth stand structure in the southern half that transitions 

to even-age appearing understory re-initiation structure as you move up in elevation and to the north. The overstory 

consists of western hemlock, western redcedar, Alaska-cedar and Sitka spruce. The even-age area has a strong 

component of Sitka spruce due to the past disturbance. The even-age portion of the stand is approximately 150 

years old, meets culmination requirements and is beginning to decline. The old growth area has moderate damage 

and defect. Windthrow risk is high. Mistletoe is light. All adjacent past harvest areas have regeneration at least 5 feet 

tall, meeting NFMA requirements for no longer being considered openings.

Silvicultural Prescription: Even-age Management – Clearcut 

This stand is mature with moderate stem decay and defect resulting in a situation where stand growth is being offset 

by decay. Even-aged clear cutting is being prescribed to preclude or minimize the risk of windthrow post-harvest, 

promote natural regeneration by opening up the canopy and minimize defect and disease in the future stand to the 

maximum extent possible.

The legacy standard and guide applies in this VCU. This requires that approximately 8 acres of productive old 

growth representative of the overall composition of the planned harvest area be maintained. Legacy was placed to 

consolidate POG at north end of unit and on west side of unit (adjacent to RMA) and to shorten required roads. 

Total mapped legacy is approximately 8 acres.

TIMBER/YARDING: Shovel and cable yarding to the proposed temporary roads.

ENGINEERING/ROADS: Unit is accessed by proposed temporary roads, totaling 2,600 feet.

BOTANY: No Concerns

INVASIVE SPECIES: No Concerns

FISHERIES: Streams drain to Thorne Bay

Stream#: 1 Class: II Flagging: B/W C- Type: MMO, HCM Concerns: none 

Buffer (RMA): Class II for MMO- greater of 120 feet, flood plain, riparian vegetation or soils, or riparian associated 

wetland fens. Class II for HCM- greater of 100 feet or to top of side-slope break.

Alternatives: ROD Buffer (RAW): no review needed Protection: Category A

All other streams in unit: Class: IV Flagging: G/W C- Type: HC or MM 

Buffer (RMA): none Buffer (RAW): no review needed Protection: Category C

Temporary roads for Unit 370: No known stream crossings. If any stream crossings are found, crossings structures 

and locations will be approved by USFS, in consultation with fisheries biologist or hydrologist, prior to construction 

(BMP 14.17). During construction of temporary roads implement BMPs 12.17, 13.10, 13.11, 13.16, 14.3, and 14.5.

GEOLOGY/KARST: No Concerns

HERITAGE RESOURCES: This unit was investigated per the third amended interagency Programmatic Agreement 

(PA) for historic properties. As specified by the PA, any potential adverse effect on historic properties (if any) was 

mitigated and portions of the Area of Potential Effect will be monitored by a qualified heritage specialist during 

and/or after actual ground disturbance.

SCENERY: No Concerns. Units mostly in Low SIO, with 3 acres of Moderate, but majority of unit is well screened 

from VPRs along the Thorne River and saltwater areas.

RECREATION: No Concerns

SOILS/WETLANDS: Slopes range from 0 to 60%. Forested wetlands occur in the southeastern and western portion 

of the unit (R10 BMP 12.5 and National Core BMPs AqEco-2 and AqEco-4). The soils and wetlands are suitable 

with a minimum of partial suspension cable yarding or shovel yarding and should follow R10 BMPs 12.5, 13.2 and 

13.9 and National Core BMPs Plan-2, Veg-2, Veg-4, Veg-5, and Veg-6. Follow shovel yarding guidelines outlined 

in the introductions to unit cards (R10 BMP 13.9 and National Core Veg-4).

490 - Big Thorne Project Record of Decision Appendix 1
The proposed temporary roads do not cross any wetlands. Provide adequate cross drainage, remove drainage 

structures, and close road after harvest. Follow R10 BMPs12.5 and 14.9 and National Core BMPs AqEco-2, AqEco4, Road-2, and Road-7.

WILDLIFE: Unit includes average snow deer winter range (western half of unit), all of which is also deep snow 

marten habitat/deer winter range. Legacy standard and guideline applies in VCU 5860; positioning of Legacy acres 

covers some deer winter range.

Appendix 1 - Unit Cards - 491 Appendix 1
2030953

2030960

KASAAN ROAD

2030952

2030952

KASAAN ROAD

15

1.2L

1.1L

1.2L

1

16

1.10L

13

1 7

18 1962

1962

1990

1990

1997

1997 1990

1990

1976

516

370

370

A

A

B

B

C

C

D

D

E

E

F

F

G

G

H

H

I

I

J

J

10 10

9 9

8 8

7 7

6 6

5 5

4 4

3 3

2 2

1 1

Unit Number 370 ROD VCU: 

0 500

Feet

Past Harvest

(Year Origin)

Unsuitable Soils

Riparian Management

Area

Slope > 72%

Other Ownership

Old Growth Habitat LUD

Recreation River LUD

Scenic River LUD

State Highway

National Forest System Road - Open

National Forest System Road - Stored

Non-National Forest 

System Road

Proposed Reconstructed Road

Proposed System Road 

(reopened Decommissioned)

Proposed Temporary Road 

(reopened Decommissioned)

Proposed System Road

Proposed Temporary

Road

Old Growth

Helicopter

Shovel or Cable

Partial Cut

Young Growth

Systematic Strip Thin

Uniform Crown Thin

Class 1 Stream

Class 2 Stream

Class 3 Stream

Class 4 Stream

Lake

100’ Contour

Eagle Nest Buffer

Legacy

Visual Buffer

Deferred (within

Original Unit

Reconnaissance

Area)

586,598

RR

SR

R:\projects_2010\BigThorneEIS\maps\Unitcards\ROD.mxd 3 June 2013

492 - Big Thorne Project Record of Decision Appendix 1
Unit 

Number: 371

Alternatives: ROD Total Unit 

Acres: 18.8

Prescription: Clearcut 

VCU 

Number: 586

Yarding System:

Cable

Net Harvest

Volume 

(MBF): 551

LUD: Modified Landscape

Summary of Concerns, Responses, BMPs and Mitigation

SILVICULTURE: Existing Condition: Unit 371 has old-growth stand structure across the majority of the acreage. 

There are areas with patchy two-age structure resulting from older windthrow. The overstory of the unit consists of 

western hemlock, western redcedar and scattered Sitka spruce. Alaska cedar is present where the stand transitions 

into non-commercial timber along the southern boundary. The overstory has moderate damage and defect. 

Mistletoe is present but light. Windthrow risk is high. All nearby past harvest areas have regeneration at least 5 feet 

tall, meeting NFMA requirements for no longer being considered openings.

Silvicultural Prescription: Even-age Management - Clearcut

This stand is mature with moderate levels of decay and defect resulting in a situation where stand growth is being 

offset by decay. Even-aged clear cutting is being prescribed to preclude or minimize the risk of windthrow postharvest, promote natural regeneration by opening up the canopy, and minimize defect and disease in the future stand 

to the maximum extent possible.

The legacy standard and guide applies in this VCU. The potential opening is less than 20 acres. No legacy set-aside 

is required.

TIMBER/YARDING: Cable yarding to the proposed temporary road and NFS road 2030798.

ENGINEERING/ROADS: Unit is accessed by a proposed temporary road of 700 feet.

BOTANY: No Concerns

INVASIVE SPECIES: No Concerns

FISHERIES: Streams are tributaries to Setter Lake and Thorne Bay

Stream#: 1 Class: II Flagging: B/W C- Type: HCO Concerns: none

Buffer (RMA): Class II for HCO- greater of 100 feet or to the top of the side-slope break. 

Alternatives: ROD Buffer (RAW): review required on east side Protection: Category A

Stream#: 1.1L Class: II Flagging: B/W C- Type: HCO Concerns: none 

Buffer (RMA): Class II for HCO- greater of 100 feet or to the top of the side-slope break. 

Alternatives: ROD Buffer (RAW): review required on east side Protection: Category A

Temporary roads for Unit 371: No known stream crossings. If any stream crossings are found, crossings structures 

and locations will be approved by USFS, in consultation with fisheries biologist or hydrologist, prior to construction 

(BMP 14.17). During construction of temporary roads implement BMPs 12.17, 13.10, 13.11, 13.16, 14.3, and 14.5.

GEOLOGY/KARST: No Concerns

HERITAGE RESOURCES: This unit was investigated per the third amended interagency Programmatic Agreement 

(PA) for historic properties. As specified by the PA, any potential adverse effect on historic properties (if any) was 

mitigated and portions of the Area of Potential Effect will be monitored by a qualified heritage specialist during 

and/or after actual ground disturbance.

SCENERY: No Concerns. 

RECREATION: No Concerns

SOILS/WETLANDS: Slopes range from 10 to 110%. Approximately 2 acres of slopes greater than 72% are 

suitable for harvest with partial suspension. Forested wetlands were identified in the northern portion of the unit 

(R10 BMP 12.5 and National Core BMPs AqEco-2 and AqEco-4). The soils and wetlands are suitable with a 

minimum of partial suspension cable yarding or shovel yarding and should follow R10 BMPs 12.5, 13.2 and 13.9 

and National Core BMPs Plan-2, Veg-2, Veg-4, Veg-5, and Veg-6. Follow shovel yarding guidelines outlined in the 

introductions to unit cards (R10 BMP 13.9 and National Core Veg-4).

The proposed temporary road does not cross any wetlands. Provide adequate cross drainage, remove drainage 

structures, and close road after harvest. Follow R10 BMPs12.5 and 14.9 and National Core BMPs AqEco-2, AqEco4, Road-2, and Road-7.

Appendix 1 - Unit Cards - 493 Appendix 1
WILDLIFE: Unit includes average snow deer winter range (entire unit), some of which is also deep snow marten 

habitat/deer winter range (northern and southern ends of unit). Legacy standard and guideline applies in this VCU, 

however there are no requirements for this unit because it is less than 20 acres.

494 - Big Thorne Project Record of Decision Appendix 1
KASAAN ROAD

2030798

1.1L

1

1962

1997

1962

1962

1997

371

A

A

B

B

C

C

D

D

E

E

F

F

G

G

H

H

I

I

J

J

10 10

9 9

8 8

7 7

6 6

5 5

4 4

3 3

2 2

1 1

Unit Number 371 ROD VCU: 

0 500

Feet

Past Harvest

(Year Origin)

Unsuitable Soils

Riparian Management

Area

Slope > 72%

Other Ownership

Old Growth Habitat LUD

Recreation River LUD

Scenic River LUD

State Highway

National Forest System Road - Open

National Forest System Road - Stored

Non-National Forest 

System Road

Proposed Reconstructed Road

Proposed System Road 

(reopened Decommissioned)

Proposed Temporary Road 

(reopened Decommissioned)

Proposed System Road

Proposed Temporary

Road

Old Growth

Helicopter

Shovel or Cable

Partial Cut

Young Growth

Systematic Strip Thin

Uniform Crown Thin

Class 1 Stream

Class 2 Stream

Class 3 Stream

Class 4 Stream

Lake

100’ Contour

Eagle Nest Buffer

Legacy

Visual Buffer

Deferred (within

Original Unit

Reconnaissance

Area)

586

RR

SR

R:\projects_2010\BigThorneEIS\maps\Unitcards\ROD.mxd 3 June 2013

Appendix 1 - Unit Cards - 495 Appendix 1
Unit 

Number: 372

Alternatives: ROD Total Unit 

Acres: 9.3

Prescription: Clearcut 

VCU 

Number: 584 

Yarding System:

Shovel

Net Harvest

Volume 

(MBF): 141

LUD: Modified Landscape

Summary of Concerns, Responses, BMPs and Mitigation

SILVICULTURE: Existing Condition: This area consists of old-growth timber. Windthrow risk is high. Mistletoe is 

light. The overstory is mature western hemlock, western redcedar and Sitka spruce. Damages are considered 

moderate across the stand. All nearby past harvest areas have regeneration at least 5 feet tall, meeting NFMA 

requirements for no longer being considered openings.

Silvicultural Prescription: Even-age Management - Clearcut

This stand is being recommended for harvest at this time because it is not expected to obtain the desired condition 

given the current growth trajectory. This stand is mature with moderate levels of decay and defect resulting in a 

situation where stand growth is being offset by decay. Even-aged clear cutting is being prescribed to preclude or 

minimize the risk of windthrow post-harvest, promote natural regeneration by opening up the canopy and minimize 

defect and disease in the future stand to the maximum extent possible.

The legacy standard and guide applies in this VCU. Units 146 and 372 combine to form a potential opening of 39 

acres. This requires 12 acres of productive old growth representative of the overall composition of the planned 

harvest area be maintained within the combined 146 and 372 potential opening. The combined unit 146 and 372 

mapped legacy set-aside is 12 acres. 

TIMBER/YARDING: Shovel yarding to the proposed temporary road and NFS road 3000215.

ENGINEERING/ROADS: Unit is accessed by reconstruction of NFS road 3000215, totaling 900 feet and a 

proposed temporary road of 400 feet. See road card for information on NFS road.

BOTANY: No Concerns

INVASIVE SPECIES: No Concerns

FISHERIES: Streams drain to Clarence Strait

Stream#: 1 Class: I, IV Flagging: B/W, G/W C- Type: HCO Concerns: blowdown

Buffer (RMA): Class I for HCO- greater of 100 feet or to the top of the side-slope break. Class IV for HCO- none

Alternatives: ROD Buffer (RAW): no review needed Protection: Category A and C

Stream#: 1.2R Class: I Flagging: B/W C- Type: HCO Concerns: blowdown observed

Buffer (RMA): Class I for HCO- greater of 100 feet or to the top of the side-slope break. 

Alternatives: ROD Buffer (RAW): no review needed Protection: Category A

Temporary roads for Unit 372: No known stream crossings. If any stream crossings are found, crossings structures 

and locations will be approved by USFS, in consultation with fisheries biologist or hydrologist, prior to construction 

(BMP 14.17). During construction of temporary roads implement BMPs 12.17, 13.10, 13.11, 13.16, 14.3, and 14.5.

GEOLOGY/KARST: No Concerns

HERITAGE RESOURCES: This unit was investigated per the third amended interagency Programmatic Agreement 

(PA) for historic properties. As specified by the PA, any potential adverse effect on historic properties (if any) was 

mitigated and portions of the Area of Potential Effect will be monitored by a qualified heritage specialist during 

and/or after actual ground disturbance.

SCENERY: Unit is mostly Low SIO and is mostly screened from NFS Road 3000000, which is at a distance of 

more than 1/2 mile. No concerns.

RECREATION: No Concerns

SOILS/WETLANDS: Slopes range from nearly level to 50%. Forested wetlands are located in the center of the unit 

and along the stream (R10 BMP 12.5 and National Core BMPs AqEco-2 and AqEco-4). The soils and wetlands are 

suitable with a minimum of partial suspension cable yarding or shovel yarding and should follow R10 BMPs 12.5, 

13.2 and 13.9 and National Core BMPs Plan-2, Veg-2, Veg-4, Veg-5, and Veg-6. Follow shovel yarding guidelines 

outlined in the introductions to unit cards (R10 BMP 13.9 and National Core Veg-4).

The proposed temporary road crosses less than 1⁄4 of an acre of forested wetlands. Wetland avoidance was not 

496 - Big Thorne Project Record of Decision Appendix 1
practicable due to existing road location, presence of stream, and extent of wetlands. Provide adequate cross 

drainage, remove drainage structures, and close road after harvest. Follow R10 BMPs12.5 and 14.9 and National 

Core BMPs AqEco-2, AqEco-4, Road-2, and Road-7.

WILDLIFE: Unit includes average snow deer winter range (entire unit), some of which is also deep snow marten 

habitat/deer winter range (northern half of unit). Legacy standard and guideline applies in this VCU, however there 

are no requirements for this unit because it is less than 20 acres.

Appendix 1 - Unit Cards - 497 Appendix 1
3000190

3000200

3000191

3000190

3000215

3000200

3000215

3000210

1

1.1L

1.1R

5.1 R

1

1.2 R

.1L

1

2. R.1L

1.1L

1.2R.1L 1. L

1.2L

1.1L.1L

1.1L.3L

5.1R.2L

1.1L.1R

5.1R.3R

1.2R

1.2R.1 L

1.1L.2L

1992

1997

1974

1966

1968

1992

1966

1966

146

147 146

372

148

145

A

A

B

B

C

C

D

D

E

E

F

F

G

G

H

H

I

I

J

J

10 10

9 9

8 8

7 7

6 6

5 5

4 4

3 3

2 2

1 1

Unit Number 372 ROD VCU: 

0 500

Feet

Past Harvest

(Year Origin)

Unsuitable Soils

Riparian Management

Area

Slope > 72%

Other Ownership

Old Growth Habitat LUD

Recreation River LUD

Scenic River LUD

State Highway

National Forest System Road - Open

National Forest System Road - Stored

Non-National Forest 

System Road

Proposed Reconstructed Road

Proposed System Road 

(reopened Decommissioned)

Proposed Temporary Road 

(reopened Decommissioned)

Proposed System Road

Proposed Temporary

Road

Old Growth

Helicopter

Shovel or Cable

Partial Cut

Young Growth

Systematic Strip Thin

Uniform Crown Thin

Class 1 Stream

Class 2 Stream

Class 3 Stream

Class 4 Stream

Lake

100’ Contour

Eagle Nest Buffer

Legacy

Visual Buffer

Deferred (within

Original Unit

Reconnaissance

Area)

584

RR

SR

R:\projects_2010\BigThorneEIS\maps\Unitcards\ROD.mxd 3 June 2013

498 - Big Thorne Project Record of Decision Appendix 1
Unit 

Number: 380

Alternatives: ROD Total Unit 

Acres: 38.2

Prescription: 25% Removal

VCU 

Number: 575

Phase 2

Yarding System:

Helicopter

Net Harvest

Volume 

(MBF): 381

LUD: Modified Landscape

Summary of Concerns, Responses, BMPs and Mitigation

SILVICULTURE: Existing Conditions: This area consists of old-growth that is comprised of mature western 

hemlock, western redcedar and Sitka spruce with scattered Alaska-cedar in the northwest. Windthrow risk is high. 

Mistletoe was practically absent in the stand. There is moderate stem form defect and stem decay. All adjacent past 

harvest areas have regeneration at least 5 feet tall, meeting NFMA requirements for no longer being considered 

openings.

Silvicultural Prescription: Uneven-age Management Single Tree Selection

Maintain at least 75 percent of the setting pretreatment basal area, based on standing live tree total for the unit, 

uncut. Review the marking guides in the harvest prescription for this unit to obtain basal area by species allowances 

and other specific instructions. Review the introduction to the unit cards for general guidance. 

The uneven-aged single tree selection regeneration method is being prescribed to mitigate windthrow and economic 

concerns. The system is not optimum for timber production.

TIMBER/YARDING: Helicopter yarding to NFS road 3016000 and the proposed temporary road accessing unit 

381.

ENGINEERING/ROADS: Unit is accessed by proposed temporary road in Unit 381. See Unit 381 unit card for 

details.

BOTANY: No Concerns

INVASIVE SPECIES: No Concerns

FISHERIES: Streams are tributaries to Thorne River

Stream#: 2 Class: III Flagging: O/W C- Type: HCM, MMS Concerns: none 

Buffer (RMA): Class III HCM- to the top of the side-slope break. Class III for MMS- greater of 120 feet, flood 

plain, riparian vegetation or soils, or riparian associated wetland fens.

Alternatives: ROD Buffer (RAW): no review needed Protection: Category B

All other streams in unit: Class: IV Flagging: G/W C- Type: HC or MM 

Buffer (RMA): none Buffer (RAW): no review needed Protection: Category C

GEOLOGY/KARST: No Concerns

HERITAGE RESOURCES: This unit was investigated per the third amended interagency Programmatic Agreement 

(PA) for historic properties. As specified by the PA, any potential adverse effect on historic properties (if any) was 

mitigated and portions of the Area of Potential Effect will be monitored by a qualified heritage specialist during 

and/or after actual ground disturbance.

SCENERY: Unit is entirely in Low SIO and is partially visible from portions of the lakes along the Honker Divide 

trail at a distance of about 1 1/4 miles or more. Typical opening sizes described in the Forest Plan for Low SIO 

areas are 15 to 40 acres for Low VAC and 40 to 60 acres for Intermediate VAC. The area is mostly Low with some 

Intermediate VAC so unit is expected to meet the SIO. If Units 380, 381, and 382 are to be harvested together, 

visible opening size is estimated at 40 acres or less and the combination still appears to meet the SIO.

RECREATION: Unit is about 3/4 mile outside of the Scenic River corridor. It is partially visible from some 

portions of the lakes along the Honker Divide trail in the center of the Scenic River corridor, at a distance of about 1 

1/4 miles or more. The northeastern boundary of the unit coincides with the boundary of the Thorne River 

inventoried roadless area, which also occurs about 1/4 mile southwest of the unit.

SOILS/WETLANDS: Slopes range from 50 to 100%. About 8 acres of slopes greater than 72% are suitable for 

harvest with partial suspension. Approximately 2 acres were excluded from harvest due to steep slopes, colluvial 

activity, and high landslide potential. Forested wetlands are found intermittently in the unit (R10 BMP 12.5 and 

National Core BMPs AqEco-2 and AqEco-4). A minimum of partial suspension would meet soil and wetland 

resource concerns (R10 BMPS 12.5, 13.5, and 13.9 and National Core BMPs Plan-2, AqEco-2, AqEco-4, Veg-1, 

Veg-2, and Veg-5).

Appendix 1 - Unit Cards - 499 Appendix 1
WILDLIFE: Unit includes average snow deer winter range (entire unit). Unit is adjacent to the Honker large OGR 

complex (OGR to the south). Legacy standard and guideline does not apply in this VCU.

500 - Big Thorne Project Record of Decision Appendix 1
3016000

1.1R.8L.1L

3

1.1R.7 L

1.1R.9R

2.1R

1 .1R.5aL

26

1.1 R.5 L

1.1R.9L

1.1R.6 L

1.1R.11R

2

1.1R

1.1R.8L

1991

1991

1991

1991

380

381

382

A

A

B

B

C

C

D

D

E

E

F

F

G

G

H

H

I

I

J

J

10 10

9 9

8 8

7 7

6 6

5 5

4 4

3 3

2 2

1 1

Unit Number 380 ROD VCU: 

0 500

Feet

Past Harvest

(Year Origin)

Unsuitable Soils

Riparian Management

Area

Slope > 72%

Other Ownership

Old Growth Habitat LUD

Recreation River LUD

Scenic River LUD

State Highway

National Forest System Road - Open

National Forest System Road - Stored

Non-National Forest 

System Road

Proposed Reconstructed Road

Proposed System Road 

(reopened Decommissioned)

Proposed Temporary Road 

(reopened Decommissioned)

Proposed System Road

Proposed Temporary

Road

Old Growth

Helicopter

Shovel or Cable

Partial Cut

Young Growth

Systematic Strip Thin

Uniform Crown Thin

Class 1 Stream

Class 2 Stream

Class 3 Stream

Class 4 Stream

Lake

100’ Contour

Eagle Nest Buffer

Legacy

Visual Buffer

Deferred (within

Original Unit

Reconnaissance

Area)

575

RR

SR

R:\projects_2010\BigThorneEIS\maps\Unitcards\ROD.mxd 3 June 2013

Appendix 1 - Unit Cards - 501 Appendix 1
Unit 

Number: 381

Alternatives: ROD Total Unit 

Acres: 35.1

Prescription: Clearcut 

VCU 

Number: 575

Phase 2

Yarding System:

Cable, Shovel

Net Harvest

Volume 

(MBF): 1,093

LUD: Modified Landscape

Summary of Concerns, Responses, BMPs and Mitigation

SILVICULTURE: Existing Conditions: This unit is old-growth timber comprised mostly of western hemlock and 

Alaska-cedar. Windthrow risk is moderate to high throughout the stand with some evidence of older blowdown in 

the central to southeast portion of the unit and more recent blowdown along past harvest edges. Mistletoe was on 

average moderate throughout the stand. Primary defect is stem decay and form defects. Alaska-cedar decline was 

also evident in the southeastern corner. All adjacent past harvest areas have regeneration at least 5 feet tall, meeting 

NFMA requirements for no longer being considered openings.

Silvicultural Prescription: Even-age Management - Clearcut

This stand is mature with moderate to high levels of decay and defect resulting in a situation where stand growth is 

being offset by decay. Even-aged clear cutting is being prescribed to preclude or minimize the risk of windthrow 

post-harvest, promote natural regeneration by opening up the canopy and minimize defect and disease in the future 

stand to the maximum extent possible.

TIMBER/YARDING: Shovel settings yard to the proposed temporary road and NFS road 3016000. Cable settings 

yard to the proposed temporary road.

ENGINEERING/ROADS: Unit is accessed by proposed temporary roads, totaling 2,900 feet. Approximately 500 

feet of this road will be constructed over decommissioned road bed. Part of this road is also used to access Units 380 

and 382.

BOTANY: No Concerns

INVASIVE SPECIES: No Concerns

FISHERIES: Streams are tributaries to Thorne River. 

Stream#: 1.1R Class: II Flagging: B/W C- Type: MMS, HCM Concerns: none

Buffer (RMA): Class II for MMS- greater of 120 feet, flood plain, riparian vegetation or soils, or riparian associated 

wetland fens. Class II for HCM- greater of 100 feet or to the top of the side-slope break

Alternatives: ROD Buffer (RAW): no review needed Protection: Category B

Stream#: 1.1R.11R Class: II Flagging: B/W C- Type: HCO Concerns: blowdown

Buffer (RMA): Class II for HCO- greater of 100 feet or to the top of the side-slope break

Alternatives: ROD Buffer (RAW): no review needed Protection: Category B

Stream#: 2 Class: III Flagging: O/W C- Type: HCM, MMS Concerns: none 

Buffer (RMA): Class III HCM- to the top of the side-slope break. Class III for MMS- greater of 120 feet, flood 

plain, riparian vegetation or soils, or riparian associated wetland fens.

Alternatives: ROD Buffer (RAW): no review needed Protection: Category B

All other streams in unit: Class: IV Flagging: G/W C- Type: HC or MM 

Buffer (RMA): none Buffer (RAW): no review needed Protection: Category C

Temporary roads for Unit 381: One Class II stream crossing. Stream#: 1.1R, Class: II, C-Type: HCM. A bridge is 

recommended. Fish presence will need to be verified to determine timing windows prior to implementation. If any 

additional crossings are found they will be approved by the USFS, in consultation with fisheries biologist or 

hydrologist, prior to construction (BMP 14.17). The Class II crossings will be designed to provide fish passage 

using a log culvert or bridge, will be installed under current timing constrictions, and concurrence from the State 

will be solicited prior to starting the work. During construction of temporary roads implement BMPs 12.17, 13.10, 

13.11, 13.16, 14.14, 14.3, and 14.5, 14.20, and 14.8.

GEOLOGY/KARST: No Concerns

HERITAGE RESOURCES: This unit was investigated per the third amended interagency Programmatic Agreement 

(PA) for historic properties. As specified by the PA, any potential adverse effect on historic properties (if any) was 

mitigated and portions of the Area of Potential Effect will be monitored by a qualified heritage specialist during 

and/or after actual ground disturbance.

502 - Big Thorne Project Record of Decision Appendix 1
SCENERY: Unit has 37 acres of Low SIO and 9 acres of Very Low. It is partially visible from portions of the lakes 

along the Honker Divide trail at a distance of about 1 1/4 miles or more. Approximate opening sizes described in 

the Forest Plan for Low SIO areas are 15 to 40 acres for Low VAC and 60 to 100 acres for High VAC. About half 

the unit is Low and half is High. If Units 380, 381, and 382 are to be harvested together, visible opening size is 

estimated at 40 acres or less and the combination still appears to meet the SIO.

RECREATION: Unit is about 3/4 mile outside of the Scenic River corridor. It is partially visible from some 

portions of the lakes along the Honker Divide trail in the center of the Scenic River corridor, at a distance of about 1 

1/4 miles or more. A portion of the northeastern boundary of unit is within about 50 ft of the Thorne River 

inventoried roadless area boundary.

SOILS/WETLANDS: Slopes range from gentle to 45%. Forested wetlands are located intermittently throughout the 

unit (R10 BMP 12.5 and National Core BMPs AqEco-2 and AqEco-4). The soils and wetlands are suitable with a 

minimum of partial suspension cable yarding or shovel yarding and should follow R10 BMPs 12.5, 13.2 and 13.9 

and National Core BMPs Plan-2, Veg-2, Veg-4, Veg-5, and Veg-6. Follow shovel yarding guidelines outlined in the 

introductions to unit cards (R10 BMP 13.9 and National Core Veg-4).

The proposed temporary road crosses about 1⁄2 of an acre of forested wetland. Wetland avoidance was not practicable 

due to streams and a cliff band. Provide adequate cross drainage, remove drainage structures, and close road after 

harvest. Follow R10 BMPs12.5 and 14.9 and National Core BMPs AqEco-2, AqEco-4, Road-2, and Road-7.

WILDLIFE: Unit includes average snow deer winter range (entire unit). Unit is adjacent to the Honker large OGR -

to the west. Legacy standard and guideline does not apply in this VCU.

Appendix 1 - Unit Cards - 503 Appendix 1
3016000

1.1R.8L.1L

1.1R.5L

1.1R.5L.1R

1.1R.7 L

1.1R.9R

2.1R

1 .1R.5aL

26

1.1R.4L

1.1R.3L

1.1R.9L

1.1R.6 L

1.1R.2R

1.1R.11R

2

1.1 R

1.1R.5 L

1.1R.8L

1.1R

1991

1991

1991

1991

380

381

382

383

A

A

B

B

C

C

D

D

E

E

F

F

G

G

H

H

I

I

J

J

10 10

9 9

8 8

7 7

6 6

5 5

4 4

3 3

2 2

1 1

Unit Number 381 ROD VCU: 

0 500

Feet

Past Harvest

(Year Origin)

Unsuitable Soils

Riparian Management

Area

Slope > 72%

Other Ownership

Old Growth Habitat LUD

Recreation River LUD

Scenic River LUD

State Highway

National Forest System Road - Open

National Forest System Road - Stored

Non-National Forest 

System Road

Proposed Reconstructed Road

Proposed System Road 

(reopened Decommissioned)

Proposed Temporary Road 

(reopened Decommissioned)

Proposed System Road

Proposed Temporary

Road

Old Growth

Helicopter

Shovel or Cable

Partial Cut

Young Growth

Systematic Strip Thin

Uniform Crown Thin

Class 1 Stream

Class 2 Stream

Class 3 Stream

Class 4 Stream

Lake

100’ Contour

Eagle Nest Buffer

Legacy

Visual Buffer

Deferred (within

Original Unit

Reconnaissance

Area)

575

RR

SR

R:\projects_2010\BigThorneEIS\maps\Unitcards\ROD.mxd 3 June 2013

504 - Big Thorne Project Record of Decision Appendix 1
Unit 

Number: 382

Alternatives: ROD Total Unit 

Acres: 13.5

Prescription: Clearcut 

VCU 

Number: 575

Phase 2

Yarding System:

Shovel, Helicopter

Net Harvest

Volume 

(MBF): 504

LUD: Modified Landscape

Summary of Concerns, Responses, BMPs and Mitigation

SILVICULTURE: Existing Conditions: Unit 382 is a mixed species stand of old-growth timber. Windthrow risk is 

moderate throughout the stand with no significant evidence of blowdown. Mistletoe is light. The overstory is made 

up of mature western hemlock, western redcedar, Alaska-cedar, and Sitka spruce. Damage and defects are moderate. 

All adjacent past harvest areas have regeneration at least 5 feet tall, meeting NFMA requirements for no longer 

being considered openings.

Silvicultural Prescription: Even-age Management - Clearcut

This stand is mature with moderate levels of decay and defect resulting in a situation where stand growth is being 

offset by decay. Even-aged clear cutting is being prescribed to preclude or minimize the risk of windthrow postharvest, promote natural regeneration by opening up the canopy, and minimize defect and disease in the future stand 

to the maximum extent possible.

TIMBER/YARDING: Shovel and helicopter yarding to the proposed temporary road.

ENGINEERING/ROADS: Unit is accessed by proposed temporary roads, totaling 3,300 feet. Approximately 500 

feet of this road will be constructed over decommissioned road bed. Part of this road is also used to access Units 380 

and 381.

BOTANY: No Concerns

INVASIVE SPECIES: No Concerns

FISHERIES: Streams are tributaries to Thorne River.

Stream#: 1.1R Class: II Flagging: B/W C- Type: MMS, HCM Concerns: none 

Buffer (RMA): Class II for MMS- greater of 120 feet, flood plain, riparian vegetation or soils, or riparian associated 

wetland fens. Class II for HCM- greater of 100 feet or to the top of the side-slope break

Alternatives: ROD Buffer (RAW): no review needed Protection: Category A

Stream#: 1.1R.4L Class: II, IV Flagging: B/W, G/W C- Type: HCO, MMO Concerns: erosion 

Buffer (RMA): Class II for HCO- greater of 100 feet or to the top of the side-slope break. 

Alternatives: ROD Buffer (RAW): no review needed Protection: Category A and C

Stream#: 1.1R.6L Class: II, III Flagging: B/W, O/W C- Type: HCO Concerns: none 

Buffer (RMA): Class II for HCO- greater of 100 feet or to the top of the side-slope break. Class III for HCO- to top 

of side-slope break.

Alternatives: ROD Buffer (RAW): no review needed Protection: Category A and B

Stream#: 1.1R.7L Class: II, IV Flagging: B/W, O/W, G/W C- Type: HCO Concerns: blowdown 

Buffer (RMA): Class II for HCO- greater of 100 feet or to the top of the side-slope break. 

Alternatives: ROD Buffer (RAW): no review needed Protection: Category A and C

Stream#: 1.1R.8L Class: II Flagging: B/W C- Type: HCO Concerns: none 

Buffer (RMA): Class II for HCO- greater of 100 feet or to the top of the side-slope break

Alternatives: ROD Buffer (RAW): no review needed Protection: Category A

Stream#: 1.1R.9L Class: II Flagging: B/W C- Type: HCO Concerns: none 

Buffer (RMA): Class II for HCO- greater of 100 feet or to the top of the side-slope break

Alternatives: ROD Buffer (RAW): no review needed Protection: Category A

 

Stream#: 1.1R.9R Class: II, IV Flagging: B/W, G/W C- Type: MMO Concerns: blowdown 

Buffer (RMA): Class II for MMO- greater of 120 feet, flood plain, riparian vegetation or soils, or riparian associated 

wetland fens. 

Alternatives: ROD Buffer (RAW): no review needed Protection: Category A and C

Appendix 1 - Unit Cards - 505 Appendix 1
All other streams in unit: Class: IV Flagging: G/W C- Type: HC or MM 

Buffer (RMA): none Buffer (RAW): no review needed Protection: Category C

Temporary roads for Unit 382: Two Class II and two Class IV stream crossings. Stream#: 1.1R, Class: II, C-Type: 

HCM. A bridge is recommended. Stream#: 1.1R.9L Class: II C-Type: HCO. A log culvert is recommended. 

Fish presence will need to be verified to determine timing windows prior to implementation. If any additional 

crossings are found they will be approved by the USFS, in consultation with fisheries biologist or hydrologist, prior 

to construction (BMP 14.17). The Class II crossings will be designed to provide fish passage using a log culvert or 

bridge, will be installed under current timing constrictions, and concurrence from the State will be solicited prior to 

starting the work. During construction of temporary roads implement BMPs 12.17, 13.10, 13.11, 13.16, 14.14, 14.3, 

and 14.5, 14.20, and 14.8.

GEOLOGY/KARST: No Concerns

HERITAGE RESOURCES: This unit was investigated per the third amended interagency Programmatic Agreement 

(PA) for historic properties. As specified by the PA, any potential adverse effect on historic properties (if any) was 

mitigated and portions of the Area of Potential Effect will be monitored by a qualified heritage specialist during 

and/or after actual ground disturbance.

SCENERY: Unit is 2/3 in Low SIO and 1/3 in Very Low. Unit is small and does not appear to be visible from the 

Honker Divide trail because of topographic and vegetation screening. If Units 380, 381, and 382 are to be 

harvested together, visible opening size is estimated at 40 acres or less and the combination still appears to meet the 

SIO.

RECREATION: The Thorne River inventoried roadless area borders the unit on its northeastern boundary.

SOILS/WETLANDS: Slopes range from 0 to 45%. Forested wetlands occur throughout the unit (R10 BMP 12.5 

and National Core BMPs AqEco-2 and AqEco-4). The soils and wetlands are suitable for a minimum of partial 

suspension cable yarding and helicopter yarding (R10 BMPs 12.5, 13.2 and 13.9 and National Core BMPs Plan-2, 

Veg-2, Veg-5, and Veg-6).

WILDLIFE: Unit includes average snow deer winter range (entire unit). Unit is near Honker Large OGR complex. 

Legacy standard and guideline does not apply in this VCU.

506 - Big Thorne Project Record of Decision Appendix 1
3016000

1.4R.1L

2

1.1 R

1.3R

1.1R.5 L

1.1R.8L

1.1R

1.1R.8L.1L

1

1.1R.5L

1.1R. 5L.1R

1.1R.7 L

1.1R.9R

2.1R

1 .1R.5aL

1.1R.4L

1.1R.3L

1.1R.9L

1.3R 1. L

1.1R.6 L

1.1R.2R

1.2R

1.1R.11R

1.4 R

1991

1991

1991

381

382

383

384

380

A

A

B

B

C

C

D

D

E

E

F

F

G

G

H

H

I

I

J

J

10 10

9 9

8 8

7 7

6 6

5 5

4 4

3 3

2 2

1 1

Unit Number 382 ROD VCU: 

0 500

Feet

Past Harvest

(Year Origin)

Unsuitable Soils

Riparian Management

Area

Slope > 72%

Other Ownership

Old Growth Habitat LUD

Recreation River LUD

Scenic River LUD

State Highway

National Forest System Road - Open

National Forest System Road - Stored

Non-National Forest 

System Road

Proposed Reconstructed Road

Proposed System Road 

(reopened Decommissioned)

Proposed Temporary Road 

(reopened Decommissioned)

Proposed System Road

Proposed Temporary

Road

Old Growth

Helicopter

Shovel or Cable

Partial Cut

Young Growth

Systematic Strip Thin

Uniform Crown Thin

Class 1 Stream

Class 2 Stream

Class 3 Stream

Class 4 Stream

Lake

100’ Contour

Eagle Nest Buffer

Legacy

Visual Buffer

Deferred (within

Original Unit

Reconnaissance

Area)

575

RR

SR

R:\projects_2010\BigThorneEIS\maps\Unitcards\ROD.mxd 3 June 2013

Appendix 1 - Unit Cards - 507 Appendix 1
Unit 

Number: 383

Alternatives: ROD Total Unit 

Acres: 19.5

Prescription: Clearcut 

VCU 

Number: 575

Phase 2

Yarding System:

Shovel

Net Harvest

Volume 

(MBF): 562

LUD: Modified Landscape

Summary of Concerns, Responses, BMPs and Mitigation

SILVICULTURE: Existing Conditions: Unit 383 is predominantly a western hemlock old-growth stand. Western 

redcedar occurs to the west of the road. Moderate windthrow, moderate defect, and low evidence of mistletoe define 

the stand. All nearby past harvest areas have regeneration at least 5 feet tall, meeting NFMA requirements for no 

longer being considered openings.

Silvicultural Prescription: Even-age Management - Clearcut

This stand is mature with moderate levels of decay and defect resulting in a situation where stand growth is being 

offset by decay. Even-aged clear cutting is being prescribed to preclude or minimize the risk of windthrow postharvest, promote natural regeneration by opening up the canopy, and minimize defect and disease in the future stand 

to the maximum extent possible.

TIMBER/YARDING: Shovel yarding to NFS road 3016000.

ENGINEERING/ROADS: No proposed road construction or reconstruction.

BOTANY: No Concerns

INVASIVE SPECIES: No Concerns

FISHERIES: Streams are tributaries to Thorne River

Stream#: 1 Class: II, III Flagging: B/W, O/W C- Type: MMS, HCM, HCL Concerns: none

Buffer (RMA): Class II for MMS- greater of 120 feet, flood plain, riparian vegetation or soils, or riparian associated 

wetland fens. Class II for HCM and HCL- greater of 100 feet or to the top of the side-slope break. Class III for 

HCL- to top of side-slope break.

Alternatives: ROD Buffer (RAW): no review needed Protection: Category A and B

Stream#: 1.1R Class: II Flagging: B/W C- Type: MMS Concerns: none

Buffer (RMA): Class II for MMS- greater of 120 feet, flood plain, riparian vegetation or soils, or riparian associated 

wetland fens. 

Alternatives: ROD Buffer (RAW): no review needed Protection: Category A

Stream#: 1.1R.3L Class: II, IV Flagging: B/W, G/W C- Type: MMO, HCO Concerns: none

Buffer (RMA): Class II for MMO- greater of 120 feet, flood plain, riparian vegetation or soils, or riparian associated 

wetland fens. Class II for HCO- greater of 100 feet or to the top of the side-slope break. Class IV for HCO- none

Alternatives: ROD Buffer (RAW): no review needed Protection: Category A

Stream#: 1.2R Class: II Flagging: B/W C- Type: HCO Concerns: none

Buffer (RMA): Class II for HCO- greater of 100 feet or to the top of the side-slope break.

Alternatives: ROD Buffer (RAW): no review needed Protection: Category A

Stream#: 1.3R Class: II Flagging: B/W C- Type: MMO Concerns: none 

Buffer (RMA): Class II for MMO- greater of 120 feet, flood plain, riparian vegetation or soils, or riparian 

associated wetland fens.

Alternatives: ROD Buffer (RAW): no review needed Protection: Category A

Stream#: 1.4R Class: II, IV Flagging: B/W, G/W C- Type: MMS, HCL, HCO Concerns: blowdown

Buffer (RMA): Class II for MMO- greater of 120 feet, flood plain, riparian vegetation or soils, or riparian 

associated wetland fens. Class II for HCL- greater of 100 feet or to the top of the side-slope break. Class IV for 

HCO- none

Alternatives: ROD Buffer (RAW): review required for southern exposure Protection: Category A and C

All other streams in unit: Class: IV Flagging: G/W C- Type: HC or MM 

Buffer (RMA): none Buffer (RAW): no review needed Protection: Category C

508 - Big Thorne Project Record of Decision Appendix 1
GEOLOGY/KARST: No Concerns

HERITAGE RESOURCES: This unit was investigated per the third amended interagency Programmatic Agreement 

(PA) for historic properties. As specified by the PA, any potential adverse effect on historic properties (if any) was 

mitigated and portions of the Area of Potential Effect will be monitored by a qualified heritage specialist during 

and/or after actual ground disturbance.

SCENERY: Unit is entirely in Very Low SIO. Unit is small and would not be visible from the Honker Divide trail 

because of topographic and vegetation screening

RECREATION: No Concerns

SOILS/WETLANDS: Slopes range from 5 to 40%. Forested wetlands are dominant throughout the unit (R10 BMP 

12.5 and National Core BMPs AqEco-2 and AqEco-4). The soils and wetlands are suitable for shovel yarding. 

Follow shovel yarding guidelines outlined in the introductions to unit cards (R10 BMP 13.9 and National Core 

BMPs Plan-2, Veg-2, and Veg-4).

WILDLIFE: Unit includes average snow deer winter range (nearly entire unit), some of which is also deep snow 

marten habitat/deer winter range (western lobe of unit). Unit is adjacent to the Honker large OGR (OGR boundary to 

the west). Legacy standard and guideline does not apply in this VCU.

Appendix 1 - Unit Cards - 509 Appendix 1
3016000

1.40L.1R

1.40L

1

1.1R.8L

1.1R

1 .7L

1.1R

1.1R. 7 L

1.9R.1R

1.1R.8L.1L

1.5L

1.1R.5L

1.1R.6L

1. 40L.3L.1R

1.1R.5L.1R

1.40L.5 L

1 4. 0 L.6L

1.1R.11

1.8R

1 .1R.5aL

1.1R.4L

1.3R

1.1R.3L

1.40L.3L.1R

1.3R 1. L

1.9R

1.1R.2R

1.4 R

1

1.4R.1L

1.2R

1.6R

1.40L.3L

1.40L

1.1R.5 L

1.40L.2L

1991

1991 382

383

384

386

381

A

A

B

B

C

C

D

D

E

E

F

F

G

G

H

H

I

I

J

J

10 10

9 9

8 8

7 7

6 6

5 5

4 4

3 3

2 2

1 1

Unit Number 383 ROD VCU: 

0 500

Feet

Past Harvest

(Year Origin)

Unsuitable Soils

Riparian Management

Area

Slope > 72%

Other Ownership

Old Growth Habitat LUD

Recreation River LUD

Scenic River LUD

State Highway

National Forest System Road - Open

National Forest System Road - Stored

Non-National Forest 

System Road

Proposed Reconstructed Road

Proposed System Road 

(reopened Decommissioned)

Proposed Temporary Road 

(reopened Decommissioned)

Proposed System Road

Proposed Temporary

Road

Old Growth

Helicopter

Shovel or Cable

Partial Cut

Young Growth

Systematic Strip Thin

Uniform Crown Thin

Class 1 Stream

Class 2 Stream

Class 3 Stream

Class 4 Stream

Lake

100’ Contour

Eagle Nest Buffer

Legacy

Visual Buffer

Deferred (within

Original Unit

Reconnaissance

Area)

575

RR

SR

R:\projects_2010\BigThorneEIS\maps\Unitcards\ROD.mxd 3 June 2013

510 - Big Thorne Project Record of Decision Appendix 1
Unit 

Number: 384

Alternatives: ROD Total Unit 

Acres: 15.1

Prescription: Clearcut 

VCU 

Number: 575

Phase 2

Yarding System:

Shovel

Net Harvest

Volume 

(MBF): 499

LUD: Modified Landscape

Summary of Concerns, Responses, BMPs and Mitigation

SILVICULTURE: Existing Condition: This unit is predominantly a western hemlock and western redcedar stand 

with old-growth stand structure. The timber is over-mature with declining growth. Moderate windthrow, moderate 

defect, and low evidence of mistletoe define the health of the stand. All nearby past harvest areas have regeneration 

at least 5 feet tall, meeting NFMA requirements for no longer being considered openings.

Silvicultural Prescription: Even-age Management - Clearcut

This stand is mature with moderate levels of decay and defect resulting in a situation where stand growth is being 

offset by decay. Even-aged clear cutting is being prescribed to preclude or minimize the risk of windthrow postharvest, promote natural regeneration by opening up the canopy, and minimize defect and disease in the future stand 

to the maximum extent possible.

TIMBER/YARDING: Shovel yarding to NFS road 3016000 and the proposed temporary road.

ENGINEERING/ROADS: Unit is accessed by a proposed temporary road of 1,700 feet. This road is also used to 

access Unit 386.

BOTANY: No Concerns

INVASIVE SPECIES: No Concerns

FISHERIES: Streams are tributaries to Thorne River.

Stream#: 1 Class: II, III Flagging: B/W, O/W C- Type: HCL Concerns: erosion

Buffer (RMA): Class II for HCL- greater of 100 feet or to the top of the side-slope break. Class III for HCL- to top 

of side-slope break.

Alternatives: ROD Buffer (RAW): no review needed Protection: Category A and B

Stream#: 1.4R Class: II, IV Flagging: B/W, G/W C- Type: MMS, HCL, HCO Concerns: none

Buffer (RMA): Class II for MMO- greater of 120 feet, flood plain, riparian vegetation or soils, or riparian 

associated wetland fens. Class II for HCL- greater of 100 feet or to the top of the side-slope break. 

Alternatives: ROD Buffer (RAW): review required for southern exposure Protection: Category A 

and C 

Stream#: 1.6R Class: II Flagging: B/W C- Type: HCO Concerns: none 

Buffer (RMA): Class II HCO- greater of 100 feet or to the top of the side-slope break

Alternatives: ROD Buffer (RAW): review required for southern exposure Protection: Category B

All other streams in unit: Class: IV Flagging: G/W C- Type: HC or MM 

Buffer (RMA): none Buffer (RAW): no review needed Protection: Category C

Temporary roads for Unit 384: One Class III and three Class IV stream crossings. If any additional stream 

crossings are found, crossings structures and locations will be approved by USFS, in consultation with fisheries 

biologist or hydrologist, prior to construction (BMP 14.17). During construction of temporary roads implement 

BMPs 12.17, 13.10, 13.11, 13.16, 14.3, and 14.5.

GEOLOGY/KARST: No Concerns

HERITAGE RESOURCES: This unit was investigated per the third amended interagency Programmatic Agreement 

(PA) for historic properties. As specified by the PA, any potential adverse effect on historic properties (if any) was 

mitigated and portions of the Area of Potential Effect will be monitored by a qualified heritage specialist during 

and/or after actual ground disturbance.

SCENERY: Unit is approximately 60% in Very Low and 40% in Low SIO and is not visible or only slightly visible 

from portions of the lakes along the Honker Divide trail at a distance of about 1 1/4 miles or more. It is not likely to 

be visible from the Honker Divide trail because of topographic and vegetation screening. Typical opening sizes 

described in the Forest Plan for Low SIO areas with Intermediate VAC are 40 to 60 acres and 60 to 100 acres for 

High VAC. This unit has a combination of Intermediate and High VAC. Total visible size of the opening created 

by Units 383, 384, 386, and 387 is estimated to be less than 25 acres. No other units are considered part of the same 

Appendix 1 - Unit Cards - 511 Appendix 1
opening, because Unit 383 is mostly not seen and does not connect with Unit 382 to the south and Unit 387 is long 

and linear and connects to Unit 394 to the north, but is considered not seen.

RECREATION: Unit is about 3/4 mile outside of the Scenic River corridor. It is not likely to be visible from the 

corridor or the Honker Divide trail due to topographic and vegetation screening. A portion of the eastern boundary 

of the unit is adjacent to the Thorne River inventoried roadless area.

SOILS/WETLANDS: Slopes range from 20 to 45%. Forested wetlands occur throughout the unit (R10 BMP 12.5 

and National Core BMPs AqEco-2 and AqEco-4). The soils and wetlands are suitable with a minimum of partial 

suspension cable yarding or shovel yarding and should follow R10 BMPs 12.5, 13.2 and 13.9 and National Core 

BMPs Plan-2, Veg-2, Veg-4, Veg-5, and Veg-6. Follow shovel yarding guidelines outlined in the introductions to 

unit cards (R10 BMP 13.9 and National Core Veg-4).

The proposed temporary road crosses about 1⁄2 of an acre of forested wetland. Wetland avoidance is not practicable 

due to contours and streams. Provide adequate cross drainage, remove drainage structures, and close road after 

harvest. Follow R10 BMPs12.5 and 14.9 and National Core BMPs AqEco-2, AqEco-4, Road-2, and Road-7.

WILDLIFE: Unit includes average snow deer winter range (entire unit), some of which is also deep snow marten 

habitat/deer winter range (western half of unit). Unit is adjacent to the Honker large OGR (OGR boundary to the 

west). Legacy standard and guideline does not apply in this VCU.

512 - Big Thorne Project Record of Decision Appendix 1
LAKE A1

3016000

3016400

1.40L.1R

1

1.40L.3L

1

1.40 L.2L

1.7L

1.1R

1

1.9R.1R 1.5L

1.1R.5L

1

1.40L.3L.1 R

1.1R.5L.1R

1.40 L.5 L

1.40L.2L

1.1R.5L

1.8R

1.4 0L.6L

1.40L.2L.2L

1.1R.4L

1.40L.2 L.1L

1.1R.3L

1.3R 1. L

1.9R

1.1R.2R

1.4 R

1.40L.6R

1

1.4R.1L

1.2R

1.6R

1.40L

1.40L

1.3R

1992

1991

1991

383

384

386

387

382

394

A

A

B

B

C

C

D

D

E

E

F

F

G

G

H

H

I

I

J

J

10 10

9 9

8 8

7 7

6 6

5 5

4 4

3 3

2 2

1 1

Unit Number 384 ROD VCU: 

0 500

Feet

Past Harvest

(Year Origin)

Unsuitable Soils

Riparian Management

Area

Slope > 72%

Other Ownership

Old Growth Habitat LUD

Recreation River LUD

Scenic River LUD

State Highway

National Forest System Road - Open

National Forest System Road - Stored

Non-National Forest 

System Road

Proposed Reconstructed Road

Proposed System Road 

(reopened Decommissioned)

Proposed Temporary Road 

(reopened Decommissioned)

Proposed System Road

Proposed Temporary

Road

Old Growth

Helicopter

Shovel or Cable

Partial Cut

Young Growth

Systematic Strip Thin

Uniform Crown Thin

Class 1 Stream

Class 2 Stream

Class 3 Stream

Class 4 Stream

Lake

100’ Contour

Eagle Nest Buffer

Legacy

Visual Buffer

Deferred (within

Original Unit

Reconnaissance

Area)

575

RR

SR

R:\projects_2010\BigThorneEIS\maps\Unitcards\ROD.mxd 3 June 2013

Appendix 1 - Unit Cards - 513 Appendix 1
Unit 

Number: 386

Alternatives: ROD Total Unit 

Acres: 24.7

Prescription: Clearcut, 25% 

Removal, 50% Removal

VCU 

Number: 575

Phase 2

Yarding System:

Shovel, Helicopter

Net Harvest

Volume 

(MBF): 552

LUD: Modified Landscape

Summary of Concerns, Responses, BMPs and Mitigation

SILVICULTURE: Existing Conditions: Unit 386 is predominantly a western hemlock and western redcedar stand 

that transitions to pure western Hemlock in the southeast. Generally old-growth stand structure dominates. Moderate 

windthrow, moderate to high stem decay and a low instance of physical defects was observed. Mistletoe was rated 

low. The timber is over-mature and shows signs of declining growth. There are no adjacent past harvest units.

Silvicultural Prescription: Even-age Management – Clearcut (note unit card map for locations)

This stand is mature with moderate to high levels of decay and defect resulting in a situation where stand growth is 

being offset by decay. Even-aged clear cutting is being prescribed to preclude or minimize the risk of windthrow 

post-harvest, promote natural regeneration by opening up the canopy, and minimize defect and disease in the future 

stand to the maximum extent possible.

Silvicultural Prescription: Uneven-age Management Single Tree Selection (note unit card map for locations)

Maintain either 50 or 75 percent of the setting pretreatment basal area, based on standing live tree total for the unit, 

uncut. Review the marking guides in the harvest prescription for this unit to obtain basal area by species allowances 

and other specific instructions. Review the introduction to the unit cards for general guidance. 

TIMBER/YARDING: Shovel and helicopter yarding to the proposed temporary road and NFS road 3016000. 

ENGINEERING/ROADS: Unit is accessed by a proposed temporary road of 900 feet. This road is also used to 

access Unit 384.

BOTANY: No Concerns

INVASIVE SPECIES: No Concerns

FISHERIES: Streams are tributaries to Thorne River.

Stream#: 1 Class: II, III Flagging: B/W, O/W C- Type: HCL Concerns: none

Buffer (RMA): Class II for HCL- greater of 100 feet or to the top of the side-slope break. Class III for HCL- to top 

of side-slope break.

Alternatives: ROD Buffer (RAW): no review needed Protection: Category A and B

Stream#: 1.5L Class: II, IV Flagging: B/W, G/W C- Type: HCO Concerns: none

Buffer (RMA): Class II for HCO- greater of 100 feet or to the top of the side-slope break. Class IV for HCO- none

Alternatives: ROD Buffer (RAW): no review needed Protection: Category A and C

Stream#: 1.40L Class: II, IV Flagging: B/W C- Type: HCL, HCM, HCO Concerns: none 

Buffer (RMA): Class II HCL and HCM- greater of 100 feet or to the top of the side-slope break. Class IV for 

HCO- none

Alternatives: ROD Buffer (RAW): review required for southern exposure Protection: Category A and C

Stream#: 1.40L.1R Class: II, IV Flagging: B/W, G/W C- Type: HCO Concerns: none

Buffer (RMA): Class II for HCO- greater of 100 feet or to the top of the side-slope break. Class IV for HCO- none

Alternatives: ROD Buffer (RAW): review required for southern exposure Protection: Category A and C

Stream#: 1.40L.2L Class: II, IV Flagging: B/W, G/W C- Type: HCO Concerns: none

Buffer (RMA): Class II for HCO- greater of 100 feet or to the top of the side-slope break. Class IV for HCO- none

Alternatives: ROD Buffer (RAW): no review needed Protection: Category A and C

Stream#: 1.40L.3L Class: II Flagging: B/W C- Type: HCO Concerns: none

Buffer (RMA): Class II for HCO- greater of 100 feet or to the top of the side-slope break

Alternatives: ROD Buffer (RAW): no review needed Protection: Category A 

Stream#: 1.40L.3L.1R Class: II, IV Flagging: B/W, G/W C- Type: HCO Concerns: none

514 - Big Thorne Project Record of Decision Appendix 1
Buffer (RMA): Class II for HCO- greater of 100 feet or to the top of the side-slope break. Class IV for HCO- none

Alternatives: ROD Buffer (RAW): no review needed Protection: Category A and C

Stream#: 1.40L.5L Class: II, IV Flagging: B/W, G/W C- Type: HCO Concerns: none

Buffer (RMA): Class II for HCO- greater of 100 feet or to the top of the side-slope break. Class IV for HCO- none

Alternatives: ROD Buffer (RAW): no review needed Protection: Category A and C

Stream#: 1.40L.6L Class: II, IV Flagging: B/W, G/W C- Type: HCO Concerns: none

Buffer (RMA): Class II for HCO- greater of 100 feet or to the top of the side-slope break. Class IV for HCO- none

Alternatives: ROD Buffer (RAW): no review needed Protection: Category A and C

All other streams in unit: Class: IV Flagging: G/W C- Type: HC or MM 

Buffer (RMA): none Buffer (RAW): no review needed Protection: Category C

Temporary roads for Unit 386: One Class II and two Class IV stream crossings. Stream#: 1.40L.6L, Class: II/IV, 

C-Type: HCO. A log culvert is recommended. This crossing is located at the class break between the class II reach 

to the class IV reach. Does not need to meet passage requirements, but needs to be installed during timing windows. 

Fish presence will need to be verified to determine timing windows prior to implementation. If any additional 

crossings are found they will be approved by the USFS, in consultation with fisheries biologist or hydrologist, prior 

to construction (BMP 14.17). The Class II will be installed under current timing constrictions and concurrence from 

the State will be solicited prior to starting the work. During construction of temporary roads implement BMPs 

12.17, 13.10, 13.11, 13.16, 14.14, 14.3, and 14.5, 14.20, and 14.8.

GEOLOGY/KARST: No Concerns

HERITAGE RESOURCES: This unit was investigated per the third amended interagency Programmatic Agreement 

(PA) for historic properties. As specified by the PA, any potential adverse effect on historic properties (if any) was 

mitigated and portions of the Area of Potential Effect will be monitored by a qualified heritage specialist during 

and/or after actual ground disturbance.

SCENERY: Unit is about 70% in Low SIO and 30% in Very Low SIO and may be partially visible from portions of 

the lakes along the Honker Divide trail at a distance of about 1 3/4 miles or more. Typical opening sizes described 

in the Forest Plan for Low SIO areas with Intermediate VAC are 40 to 60 acres and 60 to 100 acres for High VAC. 

This unit has a combination of Intermediate and High VAC. Total visible size of the opening created by Units 383, 

384, 386, and 387 is estimated to be less than 25 acres. No other units are considered part of the same opening, 

because Unit 383 is mostly not seen and does not connect with Unit 382 to the south and Unit 387 is long and linear 

and connects to Unit 394 to the north, but is considered not seen.

RECREATION: Unit is about 3/4 mile outside of the Scenic River corridor. It is only partially visible (at most) 

from the corridor or the Honker Divide trail due to topographic and vegetation screening. Eastern and northeastern 

boundary of unit is adjacent to the Thorne River inventoried roadless area.

SOILS/WETLANDS: Slopes range from 30 to 70%. Forested wetlands occur in about 40% of the unit (R10 BMP 

12.5 and National Core BMPs AqEco-2 and AqEco-4). The soils and wetlands are suitable with a minimum of 

partial suspension cable yarding or shovel yarding and should follow R10 BMPs 12.5, 13.2 and 13.9 and National 

Core BMPs Plan-2, Veg-2, Veg-4, Veg-5, and Veg-6. Follow shovel yarding guidelines outlined in the introductions 

to unit cards (R10 BMP 13.9 and National Core Veg-4).

The proposed temporary road crosses about 1 acre of forested wetland. Wetland avoidance is not practicable due to 

contours and streams. Provide adequate cross drainage, remove drainage structures, and close road after harvest. 

Follow R10 BMPs12.5 and 14.9 and National Core BMPs AqEco-2, AqEco-4, Road-2, and Road-7.

WILDLIFE: Unit includes average snow deer winter range (entire unit). Unit is adjacent to the Honker large OGR 

(OGR boundary to the west). Legacy standard and guideline does not apply in this VCU.

Appendix 1 - Unit Cards - 515 Appendix 1
LAKE A1

3016000

3016400

1.2 L. 1R

1.3R

1.40L.3L

1

1.40 L.2L

1.40L.2L.2L

1

1.9R.1R

1.40L.1R

1.2L

1.3L

1.5L

1

1.40L.3L.1 R

1.40 L.5 L

1.40L.2L

1.1 R

1.8R

1.4 0L.6L

1.40L

1 .7L

1.3R 1. L

1.9R

1.4 R

1.40L.6R

1

1.4R.1L

1.2R

1.6R

1.40L.2 L.1L

1.40L

1

1992

1991 383

384

386

387

394

382

A

A

B

B

C

C

D

D

E

E

F

F

G

G

H

H

I

I

J

J

10 10

9 9

8 8

7 7

6 6

5 5

4 4

3 3

2 2

1 1

Unit Number 386 ROD VCU: 

0 500

Feet

Past Harvest

(Year Origin)

Unsuitable Soils

Riparian Management

Area

Slope > 72%

Other Ownership

Old Growth Habitat LUD

Recreation River LUD

Scenic River LUD

State Highway

National Forest System Road - Open

National Forest System Road - Stored

Non-National Forest 

System Road

Proposed Reconstructed Road

Proposed System Road 

(reopened Decommissioned)

Proposed Temporary Road 

(reopened Decommissioned)

Proposed System Road

Proposed Temporary

Road

Old Growth

Helicopter

Shovel or Cable

Partial Cut

Young Growth

Systematic Strip Thin

Uniform Crown Thin

Class 1 Stream

Class 2 Stream

Class 3 Stream

Class 4 Stream

Lake

100’ Contour

Eagle Nest Buffer

Legacy

Visual Buffer

Deferred (within

Original Unit

Reconnaissance

Area)

575

RR

SR

R:\projects_2010\BigThorneEIS\maps\Unitcards\ROD.mxd 3 June 2013

516 - Big Thorne Project Record of Decision Appendix 1
Unit 

Number: 387

Alternatives: ROD Total Unit 3.2

Acres: 

Prescription: Clearcut, 25% 

Removal

VCU 

Number: 575

Phase 2

Yarding System:

Shovel

Net Harvest

Volume 43

(MBF): 

LUD: Modified Landscape

Summary of Concerns, Responses, BMPs and Mitigation

SILVICULTURE: Existing Conditions: Unit 387 is a low volume western hemlock / Alaska-cedar old growth 

stand. Moderate windthrow, moderate defect, and a moderate occurrence of mistletoe were observed. Timber values 

are poor in the unit however access and logging costs would be minimal due to the close proximity to the road. The 

timber is over-mature with declining growth. There are no adjacent past harvest areas.

Silvicultural Prescription: Even-age Management – Clearcut (note unit card map for locations)

This stand is mature with moderate levels of decay and defect resulting in a situation where stand growth is being 

offset by decay. Even-aged clear cutting is being prescribed to preclude or minimize the risk of windthrow postharvest, promote natural regeneration by opening up the canopy, and minimize defect and disease in the future stand 

to the maximum extent possible.

Silvicultural Prescription: Uneven-age Management Single Tree Selection (note unit card map for locations)

Maintain at least 75 percent of the setting pretreatment basal area, based on standing live tree total for the unit, 

uncut. Review the marking guides in the harvest prescription for this unit to obtain basal area by species allowances 

and other specific instructions. Review the introduction to the unit cards for general guidance. 

TIMBER/YARDING: Shovel yarding to NFS roads 3016000 and 3016400.

ENGINEERING/ROADS: Unit is accessed by part of reconstruction of NFS road 3016400, totaling 800 feet. See 

road card for information on NFS road.

BOTANY: No Concerns 

INVASIVE SPECIES: No Concerns

FISHERIES: Streams are tributaries to Thorne River

Stream#: 1 Class: II Flagging: B/W C- Type: MMO Concerns: none

Buffer (RMA): Class II for MMO- greater of 120 feet, flood plain, riparian vegetation or soils, or riparian associated 

wetland fens. 

Alternatives: ROD Buffer (RAW): no review needed Protection: Category A

GEOLOGY/KARST: No Concerns

HERITAGE RESOURCES: This unit was investigated per the third amended interagency Programmatic Agreement 

(PA) for historic properties. As specified by the PA, any potential adverse effect on historic properties (if any) was 

mitigated and portions of the Area of Potential Effect will be monitored by a qualified heritage specialist during 

and/or after actual ground disturbance.

SCENERY: Unit is entirely in Low SIO and does not appear to be visible from the lakes along the Honker Divide 

trail due to topographic and vegetative screening. Approximate opening sizes described in the Forest Plan for Low 

SIO areas with Intermediate VAC are 40 to 60 acres. Total visible size of the opening created by Units 383, 384, 

386, and 387 is estimated to be less than 25 acres. No other units are considered part of the same opening, because 

Unit 383 is mostly not seen and does not connect with Unit 382 to the south and Unit 387 is long and linear and 

connects to Unit 394 to the north, but is considered not seen.

RECREATION: Unit is over 1 mile outside of the Scenic River corridor and is not likely to be visible from the 

corridor or the Honker Divide trail due to topographic and vegetation screening.

SOILS/WETLANDS: Slopes range from 10 to 20%. Forested wetlands occur in about 20% of the unit (R10 BMP 

12.5 and National Core BMPs AqEco-2 and AqEco-4). The soils and wetlands are suitable for shovel yarding. 

Follow shovel yarding guidelines outlined in the introductions to unit cards (R10 BMP 13.9 and National Core 

BMPs Plan-2, Veg-2, and Veg-4).

WILDLIFE: Unit includes average snow deer winter range (entire unit). Unit is adjacent to the Honker large OGR. 

Legacy standard and guideline does not apply in this VCU.

Appendix 1 - Unit Cards - 517 Appendix 1
LAKE A1

3016000

3016400

3016450

1

1.40L.3L

1.4R

1

1.40 L.2L

1

1.9R.1R

1.40L.1R

1.2 L. 1R

1.2L

1.3L

1.5L

1

1.40L.3L.1R

1.40 L.5 L

1.40L.2L

1.8R

1.4 0L.6L

1.40L.2L.2L

1.7L

1.1L

1.9R

1.40L.6R

1.4R.1L

1.6R

1.40L

1.40L.2 L.1L

1.40L

1992

1992

1991

1992

384

386

387

394

383

A

A

B

B

C

C

D

D

E

E

F

F

G

G

H

H

I

I

J

J

10 10

9 9

8 8

7 7

6 6

5 5

4 4

3 3

2 2

1 1

Unit Number 387 ROD VCU: 

0 500

Feet

Past Harvest

(Year Origin)

Unsuitable Soils

Riparian Management

Area

Slope > 72%

Other Ownership

Old Growth Habitat LUD

Recreation River LUD

Scenic River LUD

State Highway

National Forest System Road - Open

National Forest System Road - Stored

Non-National Forest 

System Road

Proposed Reconstructed Road

Proposed System Road 

(reopened Decommissioned)

Proposed Temporary Road 

(reopened Decommissioned)

Proposed System Road

Proposed Temporary

Road

Old Growth

Helicopter

Shovel or Cable

Partial Cut

Young Growth

Systematic Strip Thin

Uniform Crown Thin

Class 1 Stream

Class 2 Stream

Class 3 Stream

Class 4 Stream

Lake

100’ Contour

Eagle Nest Buffer

Legacy

Visual Buffer

Deferred (within

Original Unit

Reconnaissance

Area)

575

RR

SR

R:\projects_2010\BigThorneEIS\maps\Unitcards\ROD.mxd 3 June 2013

518 - Big Thorne Project Record of Decision Appendix 1
Unit 

Number: 388

Alternative:

3

Total Unit 11.4

Acres: 

Prescription: Clearcut

VCU 

Number: 575

Phase 2

Yarding System: Cable Net Harvest

Volume 350

(MBF): 

LUD: Modified Landscape

Summary of Concerns, Responses, BMPs and Mitigation

SILVICULTURE: Existing Condition: Unit 388 is predominantly a western hemlock and western redcedar stand 

that transitions to western hemlock and Alaska-cedar in the east. Generally old-growth stand structure dominates, 

however areas with heavy past wind damage in the center of the unit have a two-age structure. Stem decay rated 

high. The windthrow risk is moderate overall. 

Silvicultural Prescription: Even-age Management – Clearcut (Alternatives 2 and 3)

This stand is over-mature with high stem decay resulting in a situation where stand growth is being offset by decay. 

Even-aged clear cutting is being prescribed to preclude or minimize the risk of windthrow post harvest, promote 

natural regeneration by opening up the canopy and minimize defect and disease in the future stand to the maximum 

extent possible.

TIMBER/YARDING: Cable yarding to the proposed temporary road.

ENGINEERING/ROADS: Unit is accessed by proposed NFS road 3016450, totaling 700 feet and by reconstruction 

of NFS road 3016400, totaling 2,400 feet a proposed temporary road of 500 feet. These roads access Units 387, 392 

and 394. See road cards for information on NFS roads.

BOTANY: No Concerns

INVASIVE SPECIES: No Concerns

FISHERIES: No streams found in unit at time of survey. If streams are found during implementations, a fish 

biologist would be notified and appropriate protections would be applied.

Temporary roads for Unit 388: Alternative 3 -- No known stream crossings. If any stream crossings are found, 

crossings structures and locations will be approved by USFS, in consultation with fisheries biologist or hydrologist, 

prior to construction (BMP 14.17). During construction of temporary roads implement BMPs 12.17, 13.10, 13.11, 

13.16, 14.3, and 14.5.

GEOLOGY/KARST: No Concerns

HERITAGE RESOURCES: This unit was investigated per the third amended interagency Programmatic Agreement 

(PA) for historic properties. As specified by the PA, any potential adverse effect on historic properties (if any) was 

mitigated and portions of the Area of Potential Effect will be monitored by a qualified heritage specialist during 

and/or after actual ground disturbance.

SCENERY: No Concerns

RECREATION: Unit is over 1 mile outside of the Scenic River corridor and is not likely to be visible from the 

corridor or the Honker Divide trail due to topographic and vegetation screening.

SOILS/WETLANDS: Slopes range from 30 to 40%. No wetlands were identified. A minimum of partial suspension 

with cable yarding will meet soil and wetland resource concerns (R10 BMPs 12.5, 13.5, and 13.9 and National Core 

BMPs Plan-2, AqEco-2, AqEco-4, Veg-1, Veg-2, Veg-5, and Veg-6). 

The proposed temporary road does not cross any wetlands. Provide adequate cross drainage, remove drainage 

structures, and close road after harvest. Follow R10 BMPs12.5 and 14.9 and National Core BMPs AqEco-2, AqEco4, Road-2, and Road-7.

WILDLIFE: Unit is adjacent to the Honker large OGR. Legacy standard and guideline does not apply in this VCU.

Alternative 4: Unit dropped to maintain connectivity and integrity of forest along the Honker large OGR.

Appendix 1 - Unit Cards - 519 Appendix 1
3016400

3016450

3016400 1.2 L. 1R

1.2L

1.3L

1.1L

1.1L

1

1

1992

1992

1992

1992

1992

1992

1992

1992

387

392

394

388

A

A

B

B

C

C

D

D

E

E

F

F

G

G

H

H

I

I

J

J

10 10

9 9

8 8

7 7

6 6

5 5

4 4

3 3

2 2

1 1

Unit Number 388 ROD VCU: 

0 500

Feet

Past Harvest

(Year Origin)

Unsuitable Soils

Riparian Management

Area

Slope > 72%

Other Ownership

Old Growth Habitat LUD

Recreation River LUD

Scenic River LUD

State Highway

National Forest System Road - Open

National Forest System Road - Stored

Non-National Forest 

System Road

Proposed Reconstructed Road

Proposed System Road 

(reopened Decommissioned)

Proposed Temporary Road 

(reopened Decommissioned)

Proposed System Road

Proposed Temporary

Road

Old Growth

Helicopter

Shovel or Cable

Partial Cut

Young Growth

Systematic Strip Thin

Uniform Crown Thin

Class 1 Stream

Class 2 Stream

Class 3 Stream

Class 4 Stream

Lake

100’ Contour

Eagle Nest Buffer

Legacy

Visual Buffer

Deferred (within

Original Unit

Reconnaissance

Area)

575

RR

SR

R:\projects_2010\BigThorneEIS\maps\Unitcards\ROD.mxd 3 June 2013

520 - Big Thorne Project Record of Decision Appendix 1
Unit 

Number: 392

Alternatives: ROD Total Unit 18.5

Acres: 

Prescription: Clearcut 

VCU 

Number: 575

Phase 2

Yarding System:

Cable

Net Harvest

Volume 481

(MBF): 

LUD: Modified Landscape

Summary of Concerns, Responses, BMPs and Mitigation

SILVICULTURE: Existing Conditions: Unit 392 is an old-growth western hemlock and western redcedar stand with 

Sitka spruce with Alaska- cedar only present in the north. Windthrow risk is moderate throughout the stand, with a 

few small windthrow patches found low on the slope in the northwest corner. Mistletoe was light in the eastern 

portion but heavy in the western lower elevations. The primary defect in the overstory is stem decay and wind 

damage. All adjacent past harvest areas have regeneration at least 5 feet tall, meeting NFMA requirements for no 

longer being considered openings.

Silvicultural Prescription: Even-age Management - Clearcut

This stand is mature with moderate levels of decay and defect resulting in a situation where stand growth is being 

offset by decay. Even-aged clear cutting is being prescribed to preclude or minimize the risk of windthrow postharvest, promote natural regeneration by opening up the canopy, and minimize defect and disease in the future stand 

to the maximum extent possible.

TIMBER/YARDING: Cable yarding to the proposed temporary road.

ENGINEERING/ROADS: Unit is accessed by reconstruction of NFS road 3016400, totaling 5,300 feet and a 

proposed temporary road of 1,600 feet; approximately 400 feet of this road will be constructed over 

decommissioned road bed. See road card for information on NFS road.

BOTANY: No Concerns

INVASIVE SPECIES: No Concerns

FISHERIES: Streams are tributaries to Thorne River

Stream#: 1 Class: I, II, III Flagging: B/W, O/W C- Type: HCD Concerns: none

Buffer (RMA): Class I and II for HCD- greater of 100 feet or to top of side-slope break. Class III HCD- to the top 

of the side-slope break. 

Alternatives: ROD Buffer (RAW): no review needed Protection: Category A and B 

Stream#: 1.1L.1R Class: II Flagging: B/W C- Type: HCO Concerns: none

Buffer (RMA): Class II for HCO- greater of 100 feet or to top of side-slope break. 

Alternatives: ROD Buffer (RAW): no review needed Protection: Category A 

Temporary roads for Unit 392: One Class III stream crossing. If any additional stream crossings are found, 

crossings structures and locations will be approved by USFS, in consultation with fisheries biologist or hydrologist, 

prior to construction (BMP 14.17). During construction of temporary roads implement BMPs 12.17, 13.10, 13.11, 

13.16, 14.3, and 14.5.

GEOLOGY/KARST: No Concerns

HERITAGE RESOURCES: This unit was investigated per the third amended interagency Programmatic Agreement 

(PA) for historic properties. As specified by the PA, any potential adverse effect on historic properties (if any) was 

mitigated and portions of the Area of Potential Effect will be monitored by a qualified heritage specialist during 

and/or after actual ground disturbance.

SCENERY: Unit is about 98% in Very Low SIO and may be partially visible (estimated to be up to 10 acres) from a 

few locations on the lakes along the Honker Divide trail at a distance of about 2 miles. Typical opening sizes 

described in the Forest Plan for Very Low SIO areas with Low VAC are 40 to 60 acres, so no concerns.

RECREATION: Unit is over 1 mile outside of the Scenic River corridor and is not likely to be visible from the 

corridor or the Honker Divide trail due to topographic and vegetation screening. The northern boundary is adjacent 

to the Thorne River inventoried roadless area.

SOILS/WETLANDS: Slopes range from 30 to 85%. About 3 acres of slopes greater than 72% are suitable for 

harvest with partial suspension. Forested wetlands were identified intermixed with uplands in the southeastern 

portion of the unit (R10 BMP 12.5 and National Core BMPs AqEco-2 and AqEco-4). A minimum of partial 

suspension with cable yarding will meet soil and wetland resource concerns (R10 BMPS 12.5, 13.5, and 13.9 and 

National Core BMPs Plan-2, AqEco-2, AqEco-4, Veg-1, Veg-2, Veg-5, and Veg-6). 

Appendix 1 - Unit Cards - 521 Appendix 1
The proposed temporary road crosses less than 1⁄4 of an acre of forested wetlands. Wetland avoidance is not feasible 

due to the location of the existing road and wetlands. Provide adequate cross drainage, remove drainage structures, 

and close road after harvest. Follow R10 BMPs12.5 and 14.9 and National Core BMPs AqEco-2, AqEco-4, Road-2, 

and Road-7.

WILDLIFE: Unit includes average snow deer winter range (entire unit), some of which is also deep snow marten 

habitat/deer winter range (central portion of unit). Unit is near the Honker large OGR. Legacy standard and 

guideline does not apply in this VCU.

522 - Big Thorne Project Record of Decision Appendix 1
3016400

3016400

1.1L.2R

1.1L

1.1 L.1R

1 1992

1992

1992

1992

1992

1992

392

394

388

A

A

B

B

C

C

D

D

E

E

F

F

G

G

H

H

I

I

J

J

10 10

9 9

8 8

7 7

6 6

5 5

4 4

3 3

2 2

1 1

Unit Number 392 ROD VCU: 

0 500

Feet

Past Harvest

(Year Origin)

Unsuitable Soils

Riparian Management

Area

Slope > 72%

Other Ownership

Old Growth Habitat LUD

Recreation River LUD

Scenic River LUD

State Highway

National Forest System Road - Open

National Forest System Road - Stored

Non-National Forest 

System Road

Proposed Reconstructed Road

Proposed System Road 

(reopened Decommissioned)

Proposed Temporary Road 

(reopened Decommissioned)

Proposed System Road

Proposed Temporary

Road

Old Growth

Helicopter

Shovel or Cable

Partial Cut

Young Growth

Systematic Strip Thin

Uniform Crown Thin

Class 1 Stream

Class 2 Stream

Class 3 Stream

Class 4 Stream

Lake

100’ Contour

Eagle Nest Buffer

Legacy

Visual Buffer

Deferred (within

Original Unit

Reconnaissance

Area)

575

RR

SR

R:\projects_2010\BigThorneEIS\maps\Unitcards\ROD.mxd 3 June 2013

Appendix 1 - Unit Cards - 523 Appendix 1
Unit 

Number: 394

Alternatives: ROD Total Unit 57.6

Acres: 

Prescription: Clearcut 

VCU 

Number: 575

Phase 2

Yarding System:

Cable, Shovel, Helicopter

Net Harvest

Volume 859

(MBF): 

LUD: Modified Landscape

Summary of Concerns, Responses, BMPs and Mitigation

SILVICULTURE: Existing Conditions: Unit 394 is predominantly a western hemlock / western redcedar stand with 

Alaska-cedar and Sitka Spruce present as lesser components. Generally old-growth stand structure dominates, 

however areas with patchy past wind damage throughout the south have a somewhat two-age structure. Moderate to 

high windthrow was noted. High defect occurs west of the road but defect is moderate east of the road. There is low 

evidence of mistletoe throughout the stand. The past harvest area adjacent to the north boundary has regeneration at 

least 5 feet tall, meeting NFMA requirements for no longer being considered an opening.

Silvicultural Prescription: Even-age Management - Clearcut

This stand is mature with moderate to high levels of decay and defect resulting in a situation where stand growth is 

being offset by decay. Even-aged clear cutting is being prescribed to preclude or minimize the risk of windthrow 

post-harvest, promote natural regeneration by opening up the canopy, and minimize defect and disease in the future 

stand to the maximum extent possible.

TIMBER/YARDING: Shovel and helicopter settings yard to NFS road 3016400. Cable settings yard to proposed 

NFS road 3016450. 

ENGINEERING/ROADS: Unit is accessed by reconstruction of NFS road 3016400, totaling 2,400 feet and 

proposed NFS road 3016450, totaling 700 feet. See road card for information on NFS roads.

BOTANY: No Concerns

INVASIVE SPECIES: No Concerns

FISHERIES: Streams are tributaries to Thorne River

Stream#: 1 Class: II Flagging: B/W C- Type: HCM, MMO Concerns: none

Buffer (RMA): Class II for HCL- greater of 100 feet or to the top of the side-slope break. Class II for MMO- greater 

of 120 feet, flood plain, riparian vegetation or soils, or riparian associated wetland fens.

Alternatives: ROD Buffer (RAW): no review needed Protection: Category A

Stream#: 1.2L Class: II, IV Flagging: B/W, G/W C- Type: HCO, MMO Concerns: none

Buffer (RMA): Class II for HCO- greater of 100 feet or to the top of the side-slope break. Class II for MMO- greater 

of 120 feet, flood plain, riparian vegetation or soils, or riparian associated wetland fens. Class IV for HCO- none

Alternatives: ROD Buffer (RAW): no review needed Protection: Category A and C

Stream#: 1.40L.2L Class: II, IV Flagging: B/W, G/W C- Type: HCO Concerns: none

Buffer (RMA): Class II for HCO- greater of 100 feet or to the top of the side-slope break. Class IV for HCO- none

Alternatives: ROD Buffer (RAW): no review needed Protection: Category A and C

All other streams in unit: Class: IV Flagging: G/W C- Type: HC or MM 

Buffer (RMA): none Buffer (RAW): no review needed Protection: Category C

GEOLOGY/KARST: No Concerns

HERITAGE RESOURCES: This unit was investigated per the third amended interagency Programmatic Agreement 

(PA) for historic properties. As specified by the PA, any potential adverse effect on historic properties (if any) was 

mitigated and portions of the Area of Potential Effect will be monitored by a qualified heritage specialist during 

and/or after actual ground disturbance.

SCENERY: Unit is 70% in Low SIO and 30% in Very Low. It may be partially visible (estimated to be up to 15 

acres) from portions of the lakes along the Honker Divide trail at a distance of about 1 1/4 miles or more. Typical 

opening sizes described in the Forest Plan for Low SIO areas with Low VAC are 15 to 40 acres, so no concerns.

RECREATION: Unit is over 1 mile outside of the Scenic River corridor and may be only slightly visible from the 

corridor or the Honker Divide trail due to topographic and vegetation screening.

SOILS/WETLANDS: Slopes range from 50 to 140%. About 2 acres of slopes greater than 72% are suitable for 

harvest with partial suspension. About 4 acres were excluded from harvest due to very steep slopes, active landslide, 

and colluvial activity. Forested wetlands are located on northeast portion of unit (R10 BMP 12.5 and National Core 

524 - Big Thorne Project Record of Decision Appendix 1
BMPs AqEco-2 and AqEco-4). A minimum of partial suspension with cable yarding will meet soil and wetland 

resource concerns (R10 BMPS 12.5, 13.5, and 13.9 and National Core BMPs Plan-2, AqEco-2, AqEco-4, Veg-1, 

Veg-2, Veg-5, and Veg-6). 

The proposed temporary road does not cross any wetlands. Provide adequate cross drainage, remove drainage 

structures, and close road after harvest. Follow R10 BMPs12.5 and 14.9 and National Core BMPs AqEco-2, AqEco4, Road-2, and Road-7.

WILDLIFE: Unit includes average snow deer winter range (entire unit). Unit is near the Honker large OGR (OGR 

boundary to the west). Legacy standard and guideline does not apply in this VCU.

Appendix 1 - Unit Cards - 525 Appendix 1
LAKE A1

3016000

3016450

3016400

1.40L.1R

1.2 L. 1R

1.2L

1.3L

1

1.40 L.3L.1R

1.40L.5 L

1.40L.2L

1 4.0 L.6L

1.7L

1.40L.2L.2L

1.1L

1.40L.6R

1

1.40L

1.40L.2 L.1L

1.40L.3L

1

1.40 L.2L

1

1992 1992

1992

1992

386

387

394

388

A

A

B

B

C

C

D

D

E

E

F

F

G

G

H

H

I

I

J

J

10 10

9 9

8 8

7 7

6 6

5 5

4 4

3 3

2 2

1 1

Unit Number 394 ROD VCU: 

0 500

Feet

Past Harvest

(Year Origin)

Unsuitable Soils

Riparian Management

Area

Slope > 72%

Other Ownership

Old Growth Habitat LUD

Recreation River LUD

Scenic River LUD

State Highway

National Forest System Road - Open

National Forest System Road - Stored

Non-National Forest 

System Road

Proposed Reconstructed Road

Proposed System Road 

(reopened Decommissioned)

Proposed Temporary Road 

(reopened Decommissioned)

Proposed System Road

Proposed Temporary

Road

Old Growth

Helicopter

Shovel or Cable

Partial Cut

Young Growth

Systematic Strip Thin

Uniform Crown Thin

Class 1 Stream

Class 2 Stream

Class 3 Stream

Class 4 Stream

Lake

100’ Contour

Eagle Nest Buffer

Legacy

Visual Buffer

Deferred (within

Original Unit

Reconnaissance

Area)

575

RR

SR

R:\projects_2010\BigThorneEIS\maps\Unitcards\ROD.mxd 3 June 2013

526 - Big Thorne Project Record of Decision Appendix 1
Unit 

Number: 395

Alternatives:

3, 4, and 5

Total Unit 65.9

Acres: 

Prescription: 50% Removal

VCU 

Number: 580

Yarding System:

Helicopter

Net Harvest

Volume 942

(MBF): 

LUD: Modified Landscape

Summary of Concerns, Responses, BMPs and Mitigation

SILVICULTURE: Existing Conditions: This area consists of old-growth structure that is comprised mostly of 

western hemlock and western redcedar with scattered Sitka spruce and Alaska-cedar. Many of the Alaska-cedar are 

dead. Defect is average for the timber type. The primary defect in the overstory is stem decay. Windthrow risk is 

moderate throughout the stand. Mistletoe infection was variable across the stand. Heavy infection occurs in the 

southern portion in the higher volume classes. All adjacent past harvest areas have regeneration at least 5 feet tall, 

meeting NFMA requirements for no longer being considered openings.

Silvicultural Prescription: Uneven-age Management Single Tree Selection

Maintain at least 50 percent of the setting pretreatment basal area, based on standing live tree total for the unit, 

uncut. Review the marking guides in the harvest prescription for this unit to obtain basal area by species allowances 

and other specific instructions. Review the introduction to the unit cards for general guidance. 

TIMBER/YARDING: Helicopter yarding to NFS road 3015000.

ENGINEERING/ROADS: No proposed road construction or reconstruction.

BOTANY: No Concerns

INVASIVE SPECIES: One infestation of common tansy has been treated along the NFS road 3015000; recommend 

future monitoring and re-treatments if necessary. 

FISHERIES: Streams are tributaries to Thorne River

Stream#: 1 Class: I, III Flagging: B/W, O/W C-Type: AFH, HCD Concerns: none

Buffer (RMA): Class I for AFH- greater of 140 feet or active portion of the alluvial fan. Class III for HCD- to the 

top of the side-slope break.

Alternatives: 3, 4 and 5 Buffer (RAW): no review needed Protection: Category A and B

Stream#: 1.1L Class: III Flagging: O/W C-Type: HCM Concerns: none 

Buffer (RMA): Class III for HCM- to the top of the side-slope break. 

Alternatives: 3, 4, and 5 Buffer (RAW): no review needed Protection: Category B

Stream#: 1.4L Class: III Flagging: O/W C-Type: HCM Concerns: none 

Buffer (RMA): Class III for HCM- to the top of the side-slope break. 

Alternatives: 3, 4, and 5 Buffer (RAW): no review needed Protection: Category B

Stream#: 30 Class: II, III Flagging: B/W, O/W C-Type: AFH, HCM, HCD Concerns: none

Buffer (RMA): Class I for AFH- greater of 140 feet or active portion of the alluvial fan. 

Class III for HCM and HCD- to the top of the side-slope break.

Alternatives: 3, 4, and 5 Buffer (RAW): no review needed Protection: Category A and B

Stream#: 32 Class: III, IV Flagging: O/W, G/W C-Type: HCM, HCL Concerns: none 

Buffer (RMA): Class III for HCM- to the top of the side-slope break. 

Alternatives: 3, 4 and 5 Buffer (RAW): no review needed Protection: Category B and C

Stream#: 33 Class: III Flagging: O/W C-Type: HCD Concerns: none 

Buffer (RMA): Class III for HCD- to the top of the side-slope break. 

Alternatives: 3, 4, and 5 Buffer (RAW): no review needed Protection: Category B

Stream#: 33.8R Class: IV Flagging: O/W, G/W C-Type: HCO Concerns: blowdown, erosion

Buffer (RMA): Class IV O/W HCO - none Protection: Category B and C 

Stream#: 34 Class: III, IV Flagging: O/W, G/W C-Type: HCD, HCO Concerns: none 

Buffer (RMA): Class III for HCD- to the top of the side-slope break. 

Alternatives: 3, 4, and 5 Buffer (RAW): no review needed Protection: Category B and C

Appendix 1 - Unit Cards - 527 Appendix 1
Stream#: 50 Class: II, IV Flagging: B/W, G/W C-Type: HCO Concerns: none

Buffer (RMA): Class II for HCO- greater of 100 feet or to the top of the side-slope break. 

Alternatives: 3, 4, and 5 Buffer (RAW): no review needed Protection: Category A and C

All other streams in unit: Class: IV Flagging: G/W C-Type: HC or MM

Buffer (RMA): none Protection: Category C Concerns: none 

GEOLOGY/KARST: No Concerns

HERITAGE RESOURCES: This unit was investigated per the third amended interagency Programmatic Agreement 

(PA) for historic properties. As specified by the PA, any potential adverse effect on historic properties (if any) was 

mitigated and portions of the Area of Potential Effect will be monitored by a qualified heritage specialist during 

and/or after actual ground disturbance.

SCENERY: Unit is entirely in Low SIO and may be partially visible from the Snakey Lakes area at a distance of 

about 1 mile or more.

Approximate opening sizes described in the Forest Plan for Low SIO areas with Low VAC are 15 to 40 acres.

RECREATION: Unit is less than 1 mile from the Scenic River LUD, near Snakey Lakes, but is not likely visible, 

except possibly from the lakes at a distance of 1 mile or more.

SOILS/WETLANDS: Slopes range from 40 to 100%. About 11 acres of slopes greater than 72% are suitable for 

harvest with full suspension partial harvest. About 45 acres were excluded from harvest due to extremely steep 

slopes, saturated hollows, very high landslide potential, and colluvial activity. Forested wetlands were identified in 

the upper elevations (R10 BMP 12.5 and National Core BMPs AqEco-2 and AqEco-4). A minimum of full 

suspension partial harvest would meet soil and wetland resource concerns (R10 BMPs 12.5, 13.5, and 13.9 and 

National Core BMPs Plan-2, AqEco-2, AqEco-4, Veg-1, Veg-2, and Veg-5).

WILDLIFE: Unit contains no deep snow deer or marten habitat. Legacy standard and guideline does not apply in 

this VCU. 

528 - Big Thorne Project Record of Decision Appendix 1
3016000

3015000

31

3 0

33

1

3 3.8R

30.1L.1R

33.8R

34

1

30.1L

50

1

32.1L

32.2R

1.3L

1 .4AR

1

1.2R.1R

1.4R

30

1.3R

30.2L

1.4L

32

1.2L

1.2L

30.3L

1.2R

1

1.1 L

29

33.9R

1

33.10R

33

1974

1976

1987

363

395

88

A

A

B

B

C

C

D

D

E

E

F

F

G

G

H

H

I

I

J

J

10 10

9 9

8 8

7 7

6 6

5 5

4 4

3 3

2 2

1 1

Unit Number 395 ROD VCU: 

0 500

Feet

Past Harvest

(Year Origin)

Unsuitable Soils

Riparian Management

Area

Slope > 72%

Other Ownership

Old Growth Habitat LUD

Recreation River LUD

Scenic River LUD

State Highway

National Forest System Road - Open

National Forest System Road - Stored

Non-National Forest 

System Road

Proposed Reconstructed Road

Proposed System Road 

(reopened Decommissioned)

Proposed Temporary Road 

(reopened Decommissioned)

Proposed System Road

Proposed Temporary

Road

Old Growth

Helicopter

Shovel or Cable

Partial Cut

Young Growth

Systematic Strip Thin

Uniform Crown Thin

Class 1 Stream

Class 2 Stream

Class 3 Stream

Class 4 Stream

Lake

100’ Contour

Eagle Nest Buffer

Legacy

Visual Buffer

Deferred (within

Original Unit

Reconnaissance

Area)

580

RR

SR

R:\projects_2010\BigThorneEIS\maps\Unitcards\ROD.mxd 3 June 2013

Appendix 1 - Unit Cards - 529 Appendix 1
Unit 

Number: 401 

Alternatives: ROD Total Unit 19.0 

Acres: 

Prescription: Clearcut and 50% 

Removal 

VCU 

Number: 595 

Yarding System: 

Cable, Shovel, Helicopter 

Net Harvest 

Volume 326 

(MBF): 

LUD: Modified Landscape 

Summary of Concerns, Responses, BMPs and Mitigation 

SILVICULTURE: Existing Conditions: Unit 401 is a western hemlock and Alaska-cedar stand in the north that 

transitions to a mixed conifer stand in the center of the unit and then to a Sitka spruce stand in the southwest. 

Mistletoe was rated as low. Stem decay and defect were rated as moderate and high. Windthrow risk is moderate. 

All adjacent past harvest areas have regeneration at least 5 feet tall, meeting NFMA requirements for no longer 

being considered openings. Portions of the unit in NW corner were dropped due to low volume timber and steep 

slopes. 

Silvicultural Prescription: Even-age Management – Clearcut (Cable and Shovel settings) 

This stand is mature with moderate to high levels of decay and defect resulting in a situation where stand growth is 

being offset by decay. Even-aged clear cutting is being prescribed to preclude or minimize the risk of windthrow 

post-harvest, promote natural regeneration by opening up the canopy, and minimize defect and disease in the future 

stand to the maximum extent possible. 

Silvicultural Prescription: Uneven-age Management Single Tree Selection (Helicopter settings) 

Maintain at least 50 percent of the setting pretreatment basal area, based on standing live tree total for the unit, 

uncut. Review the marking guides in the harvest prescription for this unit to obtain basal area by species allowances 

and other specific instructions. Review the introduction to the unit cards for general guidance. 

The uneven-aged single tree selection regeneration method is being prescribed to mitigate economic concerns. The 

system is not optimum for timber production. 

TIMBER/YARDING: Shovel, cable and helicopter yarding to NFS road 2000440. 

ENGINEERING/ROADS: Unit is accessed by reconstruction of NFS road 2000440, totaling 1,300 feet. See road 

card for information on NFS road. 

BOTANY: No Concerns 

INVASIVE SPECIES: No Concerns 

FISHERIES: Streams are tributaries to Steelhead Creek. Characteristics for Stream 1.1R and the tributary to Stream 

3 do not include project-specific, field-verified information. This information will be collected prior to 

implementation. 

Stream#: 1 Class: II, III Flagging: B/W, O/W C- Type: HCM Concerns: none 

Buffer (RMA): Class II for HCM- greater of 100 feet or to top of side-slope break. Class III for HCM- to the top of 

the side-slope break. 

Alternatives: ROD Buffer (RAW): no review needed Protection: Category A and B 

Stream#: 1.1R Class: I Flagging: B/W C- Type: HCL Concerns: not field verified 

Buffer (RMA): Class I for HCL- greater of 100 feet or to top of side-slope break. 

Alternatives: ROD Buffer (RAW): no review needed Protection: Category A 

Stream#: tributary to Stream 3 Class: III Flagging: O/W C- Type: HCD Concerns: not field 

verified 

Buffer (RMA): Class III for HCD- to the top of the side-slope break. 

Alternatives: ROD Buffer (RAW): no review needed Protection: Category B 

All other streams in unit: Class: IV Flagging: G/W C- Type: HC or MM 

Buffer (RMA): none Buffer (RAW): no review needed Protection: Category C 

GEOLOGY/KARST: No Concerns 

HERITAGE RESOURCES: This unit was investigated per the third amended interagency Programmatic Agreement 

(PA) for historic properties. As specified by the PA, any potential adverse effect on historic properties (if any) was 

mitigated and portions of the Area of Potential Effect will be monitored by a qualified heritage specialist during 

and/or after actual ground disturbance. 

530 - Big Thorne Project Record of Decision Appendix 1
SCENERY: Unit has 15 acres of Low and 2 acres of Very Low SIO. It is Seen at a distance of about 1/2 mile or 

more from portions of the Control Lake to Naukati highway. Typical opening sizes described in the Forest Plan are 

40 to 60 acres for Low SIO areas and 80 to 100 acres for Very Low SIO areas with Intermediate VAC. The seen 

portion of unit is about 15 acres, so no concerns. 

RECREATION: No Concerns 

SOILS/WETLANDS: Slopes range from 45 to 80%. All slopes greater than 72% are excluded from harvest. About 

6 acres were excluded from harvest due to steep wet slopes, colluvial activity, and high landslide potential. Forested 

wetlands are located in the 30% of the central and northeastern portions of the unit (R10 BMP 12.5 and National 

Core BMPs AqEco-2 and AqEco-4). In the remainder of the unit, the soils and wetlands are suitable for a minimum 

of partial suspension cable yarding and helicopter yarding (R10 BMPs 12.5, 13.2 and 13.9 and National Core BMPs 

Plan-2, Veg-2, Veg-5, and Veg-6). 

WILDLIFE: Unit includes average snow deer winter range (entire unit), some of which is also deep snow marten 

habitat/deer winter range (northern portion of unit). Unit is in an area of known wolf use. Legacy standard and 

guideline does not apply in this VCU. Unit is in 2008 OGR. OGR modified in Alternative 3. 

Old-growth Reserve (OGR) Boundary 

OGR boundary is adjacent to unit to the south, west, and east (separated by a stream buffer). 

Appendix 1 - Unit Cards - 531 Appendix 1
2000440

2000441

2000440

2

1.3R

1

3

1.1R

1.1R

1.3R.1R

1986 1986

1989

1989

1989

1989

2005

402

401

403

A

A

B

B

C

C

D

D

E

E

F

F

G

G

H

H

I

I

J

J

10 10

9 9

8 8

7 7

6 6

5 5

4 4

3 3

2 2

1 1

Unit Number 401 ROD VCU: 

0 500

Feet

Past Harvest

(Year Origin)

Unsuitable Soils

Riparian Management

Area

Slope > 72%

Other Ownership

Old Growth Habitat LUD

Recreation River LUD

Scenic River LUD

State Highway

National Forest System Road - Open

National Forest System Road - Stored

Non-National Forest 

System Road

Proposed Reconstructed Road

Proposed System Road 

(reopened Decommissioned)

Proposed Temporary Road 

(reopened Decommissioned)

Proposed System Road

Proposed Temporary

Road

Old Growth

Helicopter

Shovel or Cable

Partial Cut

Young Growth

Systematic Strip Thin

Uniform Crown Thin

Class 1 Stream

Class 2 Stream

Class 3 Stream

Class 4 Stream

Lake

100’ Contour

Eagle Nest Buffer

Legacy

Visual Buffer

Deferred (within

Original Unit

Reconnaissance

Area)

595

RR

SR

R:\projects_2010\BigThorneEIS\maps\Unitcards\ROD.mxd 3 June 2013

532 - Big Thorne Project Record of Decision Appendix 1
Unit 

Number: 402

Alternatives: ROD Total Unit 6.6

Acres: 

Prescription: 50% Removal

VCU 

Number: 595

Yarding System:

Helicopter

Net Harvest

Volume 88

(MBF): 

LUD: Modified Landscape

Summary of Concerns, Responses, BMPs and Mitigation

SILVICULTURE: Existing Conditions: Unit 402 is predominantly a western Hemlock / Alaska-cedar stand. 

Generally old-growth stand structure dominates. Moderate windthrow, moderate to high defect, and light evidence 

of mistletoe define the health of the stand. All adjacent past harvest areas have regeneration at least 5 feet tall, 

meeting NFMA requirements for no longer being considered openings. Parts of the original unit in the northwest 

corner were dropped due to low volume timber and steep slopes

Silvicultural Prescription: Uneven-age Management Single Tree Selection Maintain at least 50 percent of the setting 

pretreatment basal area, based on standing live tree total for the unit, uncut. Review the marking guides in the 

harvest prescription for this unit to obtain basal area by species allowances and other specific instructions. Review 

the introduction to the unit cards for general guidance. 

The uneven-aged single tree selection regeneration method is being prescribed to mitigate economic concerns. The 

system is not optimum for timber production.

TIMBER/YARDING: Helicopter yarding to NFS road 2000440.

ENGINEERING/ROADS: Unit is accessed by reconstruction of NFS road 2000440, totaling 6,400 feet. See road 

card for information on NFS road.

BOTANY: No Concerns

INVASIVE SPECIES: No Concerns

FISHERIES: Streams are tributaries to Steelhead Creek

Stream#: 1 Class: II, III Flagging: B/W, O/W C- Type: HCL, HCM Concerns: none 

Buffer (RMA): Class II for HCL- greater of 100 feet or to the top of the side-slope break. Class III for HCM- to the 

top of the side-slope break.

Alternatives: ROD Buffer (RAW): no review needed Protection: Category A and B

Stream#: 1.3R Class: III Flagging: O/W C- Type: HCM Concerns: none 

Buffer (RMA): Class III for HCM- to the top of the side-slope break.

Alternatives: ROD Buffer (RAW): no review needed Protection: Category B

All other streams in unit: Class: IV Flagging: G/W C- Type: HC or MM 

Buffer (RMA): none Buffer (RAW): no review needed Protection: Category C

GEOLOGY/KARST: No Concerns

HERITAGE RESOURCES: This unit was investigated per the third amended interagency Programmatic Agreement 

(PA) for historic properties. As specified by the PA, any potential adverse effect on historic properties (if any) was 

mitigated and portions of the Area of Potential Effect will be monitored by a qualified heritage specialist during 

and/or after actual ground disturbance.

SCENERY: All 6 acres of unit are in Low SIO. It is Seen at a distance of 1/2 mile or more from portions of the 

Control Lake to Naukati highway. Approximate opening sizes described in the Forest Plan for Low SIO areas are 

15 to 40 acres with Low VAC and seen portion of unit is about 6 acres. In addition, unit is broken by riparian buffer 

and areas dropped due to soils. No concerns

RECREATION: No Concerns

SOILS/WETLANDS: Slopes range from 65 to 90%. About a 1⁄4 of an acre of slopes greater than 72% is suitable for 

harvest with a minimum of partial suspension. About 30 acres of the original unit were excluded from harvest due to 

very high landslide potential, colluvial activity, and steep slopes. In the remainder of the unit, a minimum of partial 

suspension would meet soil and wetland resource concerns (R10 BMPS 12.5, 13.5, and 13.9 and National Core 

BMPs Plan-2, AqEco-2, AqEco-4, Veg-1, Veg-2, and Veg-5). No wetlands were identified.

Appendix 1 - Unit Cards - 533 Appendix 1
WILDLIFE: Unit includes average snow deer winter range (entire unit), some of which is also deep snow marten 

habitat/deer winter range (eastern portion of unit). It is in an area of known wolf use. Legacy standard and guideline 

does not apply in this VCU. Unit is 2008 OGR. 

Old-growth Reserve (OGR) Boundary

OGR boundary is adjacent to unit to the west.

534 - Big Thorne Project Record of Decision Appendix 1
2000440

925

2000440

1

2

2.1R

3

1.3R

1

2

1

1.2R

3

1.1R

2

1.1R

1.1R

4

1.3R.1R

1988

1989

1989

1989

1988

1989

402

404

401

403

A

A

B

B

C

C

D

D

E

E

F

F

G

G

H

H

I

I

J

J

10 10

9 9

8 8

7 7

6 6

5 5

4 4

3 3

2 2

1 1

Unit Number 402 ROD VCU: 

0 500

Feet

Past Harvest

(Year Origin)

Unsuitable Soils

Riparian Management

Area

Slope > 72%

Other Ownership

Old Growth Habitat LUD

Recreation River LUD

Scenic River LUD

State Highway

National Forest System Road - Open

National Forest System Road - Stored

Non-National Forest 

System Road

Proposed Reconstructed Road

Proposed System Road 

(reopened Decommissioned)

Proposed Temporary Road 

(reopened Decommissioned)

Proposed System Road

Proposed Temporary

Road

Old Growth

Helicopter

Shovel or Cable

Partial Cut

Young Growth

Systematic Strip Thin

Uniform Crown Thin

Class 1 Stream

Class 2 Stream

Class 3 Stream

Class 4 Stream

Lake

100’ Contour

Eagle Nest Buffer

Legacy

Visual Buffer

Deferred (within

Original Unit

Reconnaissance

Area)

595

RR

SR

R:\projects_2010\BigThorneEIS\maps\Unitcards\ROD.mxd 3 June 2013

Appendix 1 - Unit Cards - 535 Appendix 1
Unit 

Number: 403

Alternatives: ROD Total Unit 17.1

Acres: 

Prescription: Clearcut and 50% 

Removal

VCU 

Number: 595

Yarding System:

Shovel, Helicopter

Net Harvest

Volume 302

(MBF): 

LUD: Modified Landscape

Summary of Concerns, Responses, BMPs and Mitigation

SILVICULTURE: Existing Conditions: This unit is old-growth timber comprised of patchy, lightly stocked, 

western hemlock and Alaska-cedar, as well as some scattered mountain hemlock and western redcedar in the upper 

elevations. Windthrow risk is moderate. Mistletoe occurrence is light throughout the entire unit. Overall defect is 

moderate to high with primary defects being stem decay, root/butt diseases, and cedar decline. All adjacent past 

harvest areas have regeneration at least 5 feet tall, meeting NFMA requirements for no longer being considered 

openings.

Silvicultural Prescription: Even-age Management – Clearcut ( Shovel settings)

This stand is mature with moderate to high levels of decay and defect resulting in a situation where stand growth is 

being offset by decay. Even-aged clear cutting is being prescribed to preclude or minimize the risk of windthrow 

post harvest, promote natural regeneration by opening up the canopy, and minimize defect and disease in the future 

stand to the maximum extent possible.

Silvicultural Prescription: Uneven-age Management Single Tree Selection (Helicopter settings)

Maintain at least 50 percent of the setting pretreatment basal area, based on standing live tree total for the unit, 

uncut. Review the marking guides in the harvest prescription for this unit to obtain basal area by species allowances 

and other specific instructions. Review the introduction to the unit cards for general guidance. 

The uneven-aged single tree selection regeneration method is being prescribed to mitigate economic concerns. The 

system is not optimum for timber production.

TIMBER/YARDING: Shovel and helicopter yarding to NFS road 2000440.

ENGINEERING/ROADS: Unit is accessed by reconstruction of NFS road 2000440, totaling 6,400 feet. See road 

card for information on NFS road.

BOTANY: No Concerns

INVASIVE SPECIES: No Concerns

FISHERIES: Streams are tributaries to Steelhead Creek 

Stream#: 1 Class: II, III, IV Flagging: B/W, O/W, G/W C- Type: HCL, HCM, HCO Concerns: none 

Buffer (RMA): Class II for HCL- greater of 100 feet or to the top of the side-slope break. Class III for HCM- to the 

top of the side-slope break. Class IV for HCO- none

Alternatives: ROD Buffer (RAW): no review needed Protection: Category A, B, and C

Stream#: 1.3R Class: III Flagging: O/W C- Type: HCM Concerns: none 

Buffer (RMA): Class III for HCM- to the top of the side-slope break. 

Alternatives: ROD Buffer (RAW): no review needed Protection: Category B

Stream#: 2 Class: I, II, III Flagging: B/W, O/W C- Type: AFH, HCM, HCD Concerns: none 

Buffer (RMA): Class I and II for AFH- greater of 140 feet or to active portion of alluvial fan. Class II for HCMgreater of 100 feet or to the top of the side-slope break. Class III for HCD- to the top of the side-slope break. 

Alternatives: ROD Buffer (RAW): no review needed Protection: Category A and B

Stream#: 2.1R Class: II, III Flagging: B/W, G/W C- Type: HCO Concerns: none 

Buffer (RMA): Class II for HCO- greater of 100 feet or the top of the side-slope break. Class IV for HCO- none

Alternatives: ROD Buffer (RAW): no review needed Protection: Category A and C 

Stream#: 3 Class: I,II, IV Flagging: B/W, G/W C- Type: HCO Concerns: none 

Buffer (RMA): Class I and II for HCO- greater of 100 feet or the top of the side-slope break. Class IV for HCOnone 

Alternatives: ROD Buffer (RAW): no review needed Protection: Category A and C 

GEOLOGY/KARST: No Concerns

536 - Big Thorne Project Record of Decision Appendix 1
HERITAGE RESOURCES: This unit was investigated per the third amended interagency Programmatic Agreement 

(PA) for historic properties. As specified by the PA, any potential adverse effect on historic properties (if any) was 

mitigated and portions of the Area of Potential Effect will be monitored by a qualified heritage specialist during 

and/or after actual ground disturbance.

SCENERY: All 17 acres of unit are in Low SIO. It is Seen at a distance of 1/2 mile or more from portions of the 

Control Lake to Naukati highway. Typical opening sizes described in the Forest Plan for Low SIO areas are 15 to 

40 acres for Low VAC and 40 to 60 acres for Intermediate VAC. The Seen portion of unit is about 17 acres. Even 

if combined with Unit 402, which is 6 acres, opening size would be about 23 acres. In addition, unit 402 is broken 

by riparian buffer and areas dropped due to soils, and is across another riparian buffer from Unit 403. No concerns.

RECREATION: Unit is adjacent to the Kogish Roadless Area and small OGR on the southwest.

SOILS/WETLANDS: Slopes range from 60 to 90%. All slopes greater than 72% are excluded from harvest. About 

4 acres were excluded from harvest due to steep slopes, colluvial activity, and high landslide potential. In the 

remainder of the unit, the soils and wetlands are suitable for a minimum of partial suspension cable yarding and 

helicopter yarding (R10 BMPs 12.5, 13.2 and 13.9 and National Core BMPs Plan-2, Veg-2, Veg-5, and Veg-6). No 

wetlands were identified.

WILDLIFE: Unit includes average snow deer winter range (entire unit), some of which is also deep snow marten 

habitat/deer winter range (eastern portion of unit). It is in an area of known wolf use. Legacy standard and guideline 

does not apply in this VCU. Unit is 2008 OGR. 

Old-growth Reserve (OGR) Boundary

OGR boundary adjacent to unit to the southwest. 

Appendix 1 - Unit Cards - 537 Appendix 1
2000440

925

2000440

1.2L

1

3

2

2.1R

3

1.3R

1

1

1

1.1L

2

1.1R

1.2R

1.1R

2

4

1.3R.1R

1988

1989

1989

1988

402 1989

404

405

401

403

A

A

B

B

C

C

D

D

E

E

F

F

G

G

H

H

I

I

J

J

10 10

9 9

8 8

7 7

6 6

5 5

4 4

3 3

2 2

1 1

Unit Number 403 ROD VCU: 

0 500

Feet

Past Harvest

(Year Origin)

Unsuitable Soils

Riparian Management

Area

Slope > 72%

Other Ownership

Old Growth Habitat LUD

Recreation River LUD

Scenic River LUD

State Highway

National Forest System Road - Open

National Forest System Road - Stored

Non-National Forest 

System Road

Proposed Reconstructed Road

Proposed System Road 

(reopened Decommissioned)

Proposed Temporary Road 

(reopened Decommissioned)

Proposed System Road

Proposed Temporary

Road

Old Growth

Helicopter

Shovel or Cable

Partial Cut

Young Growth

Systematic Strip Thin

Uniform Crown Thin

Class 1 Stream

Class 2 Stream

Class 3 Stream

Class 4 Stream

Lake

100’ Contour

Eagle Nest Buffer

Legacy

Visual Buffer

Deferred (within

Original Unit

Reconnaissance

Area)

595

RR

SR

R:\projects_2010\BigThorneEIS\maps\Unitcards\ROD.mxd 3 June 2013

538 - Big Thorne Project Record of Decision Appendix 1
Unit 

Number: 404

Alternatives: ROD Total Unit 2.8

Acres: 

Prescription: Clearcut 

VCU 

Number: 595

Yarding System:

Shovel

Net Harvest

Volume 52

(MBF): 

LUD: Timber Production

Summary of Concerns, Responses, BMPs and Mitigation

SILVICULTURE: Existing Conditions: This lower elevation unit consists of old-growth structure that is comprised 

of western hemlock along with some scattered Sitka Spruce. Windthrow risk is low, with only minor indications of 

past windthrow throughout the stand. Mistletoe occurrence is light as well. Overall defect is moderate with primary 

defect being stem decay. There are no adjacent past harvest areas.

Silvicultural Prescription: Even-age Management - Clearcut

This stand is mature with moderate to high levels of decay and defect resulting in a situation where stand growth is 

being offset by decay. Even-aged clear cutting is being prescribed to preclude or minimize the risk of windthrow 

post harvest, promote natural regeneration by opening up the canopy, and minimize defect and disease in the future 

stand to the maximum extent possible.

TIMBER/YARDING: Shovel yarding to NFS road 2000440.

ENGINEERING/ROADS: Unit is accessed by reconstruction of NFS road 2000440, totaling 7,000 feet. See road 

card for information on NFS road.

BOTANY: No Concerns

INVASIVE SPECIES: No Concerns

FISHERIES: Streams are tributaries to Steelhead Creek 

Stream#: 2 Class: I, II Flagging: B/W C- Type: AFH, HCM Concerns: none 

Buffer (RMA): Class I and II for AFH- greater of 140 feet or to active portion of alluvial fan. 

Class II for HCM- greater of 100 feet or to the top of the side-slope break. 

Alternatives: ROD Buffer (RAW): no review needed Protection: Category A 

Stream#: 4 Class: I Flagging: B/W C- Type: HCO Concerns: none 

Buffer (RMA): Class I for HCO- greater of 100 feet or to the top of the side-slope break. 

Alternatives: ROD Buffer (RAW): no review needed Protection: Category A

GEOLOGY/KARST: No Concerns

HERITAGE RESOURCES: This unit was investigated per the third amended interagency Programmatic Agreement 

(PA) for historic properties. As specified by the PA, any potential adverse effect on historic properties (if any) was 

mitigated and portions of the Area of Potential Effect will be monitored by a qualified heritage specialist during 

and/or after actual ground disturbance.

SCENERY: Unit has 2 acres in Low and 3 acres in Very Low SIO. Portion of the unit is Seen at a distance of 1/2 

mile or more from portions of the Control Lake to Naukati highway. Typical opening sizes described in the Forest 

Plan for Low SIO areas are 60 to 100 acres for High VAC and seen portion of unit is about 2 acres. Even if 

combined with Units 402 and 403, opening size would be about 25 acres. In addition, unit 402 is broken by riparian 

buffer and areas dropped due to soils, and is across another riparian buffer from Unit 403; unit 404 is across a TTRA 

buffer from unit 403.

RECREATION: Most of the southwestern boundary of unit is adjacent to the Kogish inventoried roadless area. 

Only about 75 ft of the existing road borders the unit outside the roadless area; then the road enters the roadless area 

and the unit is separated from it by the roadless area

SOILS/WETLANDS: Slopes range from 5 to 35%. Forested wetlands are dominant throughout the unit (R10 BMP 

12.5 and National Core BMPs AqEco-2 and AqEco-4). The soils and wetlands are suitable for shovel yarding. 

Follow shovel yarding guidelines outlined in the introductions to unit cards (R10 BMP 13.9 and National Core 

BMPs Plan-2, Veg-2, and Veg-4).

WILDLIFE: Unit includes average snow deer winter range (entire unit), all of which is also deep snow marten 

habitat/deer winter range. Unit is in an area of known wolf use. Legacy standard and guideline does not apply in this 

VCU. Unit is in 2008 OGR. 

Old-growth Reserve (OGR) Boundary

OGR boundary adjacent to unit on west.

Appendix 1 - Unit Cards - 539 Appendix 1
2000440

925

2000440

1.2L

1

1.1L.2L

3

2

2.1R

3

1.3R

1

2

1.2R

1.1L.1L

1.1L

1.1R

1

2

1.1 L.1L

4

1.3R.1R

1

1988

1989

1988 1989

402

404

405

405

403

A

A

B

B

C

C

D

D

E

E

F

F

G

G

H

H

I

I

J

J

10 10

9 9

8 8

7 7

6 6

5 5

4 4

3 3

2 2

1 1

Unit Number 404 ROD VCU: 

0 500

Feet

Past Harvest

(Year Origin)

Unsuitable Soils

Riparian Management

Area

Slope > 72%

Other Ownership

Old Growth Habitat LUD

Recreation River LUD

Scenic River LUD

State Highway

National Forest System Road - Open

National Forest System Road - Stored

Non-National Forest 

System Road

Proposed Reconstructed Road

Proposed System Road 

(reopened Decommissioned)

Proposed Temporary Road 

(reopened Decommissioned)

Proposed System Road

Proposed Temporary

Road

Old Growth

Helicopter

Shovel or Cable

Partial Cut

Young Growth

Systematic Strip Thin

Uniform Crown Thin

Class 1 Stream

Class 2 Stream

Class 3 Stream

Class 4 Stream

Lake

100’ Contour

Eagle Nest Buffer

Legacy

Visual Buffer

Deferred (within

Original Unit

Reconnaissance

Area)

595

RR

SR

R:\projects_2010\BigThorneEIS\maps\Unitcards\ROD.mxd 3 June 2013

540 - Big Thorne Project Record of Decision Appendix 1
Unit 

Number: 405

Alternatives: ROD Total Unit 4.4

Acres: 

Prescription: 50% Removal

VCU 

Number: 595

Yarding System:

Helicopter

Net Harvest

Volume 29

(MBF): 

LUD: Timber Production

Summary of Concerns, Responses, BMPs and Mitigation

SILVICULTURE: Existing Conditions: Unit 405 is predominantly a western hemlock stand with old-growth stand 

structure. Sitka spruce are scattered. Moderate windthrow, moderate to high defect, and a light occurrence of 

mistletoe were noted for the stand. There are no adjacent past harvest areas. State lands border the unit on the east.

Silvicultural Prescription: Uneven-age Management Single Tree Selection (Helicopter settings)

Maintain at least 50 percent of the setting pretreatment basal area, based on standing live tree total for the unit, 

uncut. Review the marking guides in the harvest prescription for this unit to obtain basal area by species allowances 

and other specific instructions. Review the introduction to the unit cards for general guidance. 

The uneven-aged single tree selection regeneration method is being prescribed to mitigate economic concerns. The 

system is not optimum for timber production.

TIMBER/YARDING: Helicopter yarding to NFS road 2000440.

ENGINEERING/ROADS: Unit is accessed by reconstruction of NFS road 2000440, totaling 9,500 feet. See road 

card for information on NFS road.

BOTANY: No Concerns

INVASIVE SPECIES: No Concerns

FISHERIES: Streams are tributaries to Steelhead Creek

Stream#: 1 Class: I Flagging: B/W C- Type: FPM Concerns: none 

Buffer (RMA): Class I for FPM- greater of 130 feet or flood plain, riparian vegetation or soils, or riparian associated 

wetland fens. 

Alternatives: ROD Buffer (RAW): no review needed Protection: Category A

Stream#: 1.2L Class: I Flagging: B/W C- Type: MMS, PAS Concerns: none 

Buffer (RMA): Class I- greater of 120 feet (MMS) or 100 feet (PAS) or flood plain, riparian vegetation or soils, or 

riparian associated wetland fens.

Alternatives: ROD Buffer (RAW): no review needed Protection: Category A

GEOLOGY/KARST: No Concerns

HERITAGE RESOURCES: This unit was investigated per the third amended interagency Programmatic Agreement 

(PA) for historic properties. As specified by the PA, any potential adverse effect on historic properties (if any) was 

mitigated and portions of the Area of Potential Effect will be monitored by a qualified heritage specialist during 

and/or after actual ground disturbance.

SCENERY: Unit entirely in Very Low SIO. No concerns

RECREATION: No concerns

SOILS/WETLANDS: Slopes are gentle. Forested wetlands are dominant throughout the unit (R10 BMP 12.5 and 

National Core BMPs AqEco-2 and AqEco-4). A minimum of partial suspension would meet soil and wetland 

resource concerns (R10 BMPS 12.5, 13.5, and 13.9 and National Core BMPs Plan-2, AqEco-2, AqEco-4, Veg-1, 

Veg-2, and Veg-5).

WILDLIFE: Unit includes average snow deer winter range (entire unit), all of which is also deep snow marten 

habitat/deer winter range. Unit is in an area of known wolf use. Legacy standard and guideline does not apply in this 

VCU. Unit in 2008 OGR. 

Old-growth Reserve (OGR) Boundary

OGR boundary near unit to west, but not adjacent.

Appendix 1 - Unit Cards - 541 Appendix 1
925

2000440

2000430

2000440

1.1L.1L

1.3R

1.1L

1

1.1 L.1L

4

1

R.1R

1.2L

1.1L.2L

3

2

1

1.5R

2.1R

1.6R

1.5R

2

2

1988

2003

1991

402

404

405

405

407 361

403

360

A

A

B

B

C

C

D

D

E

E

F

F

G

G

H

H

I

I

J

J

10 10

9 9

8 8

7 7

6 6

5 5

4 4

3 3

2 2

1 1

Unit Number 405 ROD VCU: 

0 500

Feet

Past Harvest

(Year Origin)

Unsuitable Soils

Riparian Management

Area

Slope > 72%

Other Ownership

Old Growth Habitat LUD

Recreation River LUD

Scenic River LUD

State Highway

National Forest System Road - Open

National Forest System Road - Stored

Non-National Forest 

System Road

Proposed Reconstructed Road

Proposed System Road 

(reopened Decommissioned)

Proposed Temporary Road 

(reopened Decommissioned)

Proposed System Road

Proposed Temporary

Road

Old Growth

Helicopter

Shovel or Cable

Partial Cut

Young Growth

Systematic Strip Thin

Uniform Crown Thin

Class 1 Stream

Class 2 Stream

Class 3 Stream

Class 4 Stream

Lake

100’ Contour

Eagle Nest Buffer

Legacy

Visual Buffer

Deferred (within

Original Unit

Reconnaissance

Area)

595

RR

SR

R:\projects_2010\BigThorneEIS\maps\Unitcards\ROD.mxd 3 June 2013

542 - Big Thorne Project Record of Decision Appendix 1
Unit 

Number: 407

Alternatives: ROD Total Unit 23.6

Acres: 

Prescription: Clearcut 

VCU 

Number: 595

Yarding System:

Helicopter

Net Harvest

Volume 595

(MBF): 

LUD: Timber Production

Summary of Concerns, Responses, BMPs and Mitigation

SILVICULTURE: Existing Conditions: Unit 407 is predominantly a western hemlock and Sitka spruce stand where 

old-growth stand structure dominates. Moderate windthrow, low to moderate defect, and light evidence of mistletoe 

define the stand. There was some evidence of wind shake seams in the Sitka spruce in the south end of the unit. 

There are no adjacent past harvest areas.

Silvicultural Prescription: Even-age Management - Clearcut

This stand is mature with low to moderate levels of decay and defect resulting in a situation where stand growth is 

being offset by decay. Even-aged clear cutting is being prescribed to preclude or minimize the risk of windthrow 

post-harvest, promote natural regeneration by opening up the canopy and minimize defect and disease in the future 

stand to the maximum extent possible.

TIMBER/YARDING: Helicopter yarding to the proposed temporary road accessing Unit 360.

ENGINEERING/ROADS: Unit is accessed by proposed temporary roads constructed for Unit 360 for helicopter 

yarding. See unit 360 unit card for information.

BOTANY: No Concerns

INVASIVE SPECIES: No Concerns

FISHERIES: Streams are tributaries to Steelhead Creek

Stream#: 1 Class: I Flagging: B/W C- Type: MMM, FPM, MCM Concerns: none 

Buffer (RMA): Class I- greater of 130 feet (FPM) or 120 feet (MMM) or 100 feet (MCM), flood plain, riparian 

vegetation or soils, or riparian associated wetland fens.

Alternatives: ROD Buffer (RAW): no review needed Protection: Category A

Stream#: 1.2R Class: I, II, IV Flagging: B/W, G/W C- Type: HCL, HCO Concerns: none 

Buffer (RMA): Class I and II for HCL- greater of 100 feet or to the top of the side-slope break. 

Class IV for HCO- none

Alternatives: ROD Buffer (RAW): no review needed Protection: Category A and C

Stream#: 1.5R Class: I, IV Flagging: B/W, G/W C- Type: PAB, HCO Concerns: none 

Buffer (RMA): Class I for PAB- greater of 100 feet, flood plain, riparian vegetation or soils, or riparian associated 

wetland fens. Class IV for HCO- none

Alternatives: ROD Buffer (RAW): no review needed Protection: Category A and C

All other streams in unit: Class: IV Flagging: G/W C- Type: HC or MM 

Buffer (RMA): none Buffer (RAW): no review needed Protection: Category C

GEOLOGY/KARST: No Concerns

HERITAGE RESOURCES: This unit was investigated per the third amended interagency Programmatic Agreement 

(PA) for historic properties. As specified by the PA, any potential adverse effect on historic properties (if any) was 

mitigated and portions of the Area of Potential Effect will be monitored by a qualified heritage specialist during 

and/or after actual ground disturbance.

SCENERY: Unit entirely in Very Low SIO. No concerns

RECREATION: No concerns

SOILS/WETLANDS: Slopes range from 25 to 55%. Forested wetlands occur throughout the southwestern portion 

of the unit (R10 BMP 12.5 and National Core BMPs AqEco-2 and AqEco-4). A minimum of partial suspension 

would meet soil and wetland resource concerns (R10 BMPS 12.5, 13.5, and 13.9 and National Core BMPs Plan-2, 

AqEco-2, AqEco-4, Veg-1, Veg-2, and Veg-5).

WILDLIFE: Unit includes average snow deer winter range (entire unit), all of which is also deep snow marten 

habitat/deer winter range. Unit is in an area of known wolf use. Legacy standard and guideline does not apply in this 

VCU. Unit in 2008 OGR. 

Appendix 1 - Unit Cards - 543 Appendix 1
Old-growth Reserve (OGR) Boundary

OGR boundary is across Class I stream to the west.

544 - Big Thorne Project Record of Decision Appendix 1
2000440

2000400

1.1L.2L

1.2 R

1.5R

1.1R

1.2R.1R

1.6R

1.2R.2R

1.5R

1

1

1.1L.1L

1.2L

1.1 L.1L

1

1.1L

2003 2004

1991

2003

360

405

405

407

361

A

A

B

B

C

C

D

D

E

E

F

F

G

G

H

H

I

I

J

J

10 10

9 9

8 8

7 7

6 6

5 5

4 4

3 3

2 2

1 1

Unit Number 407 ROD VCU: 

0 500

Feet

Past Harvest

(Year Origin)

Unsuitable Soils

Riparian Management

Area

Slope > 72%

Other Ownership

Old Growth Habitat LUD

Recreation River LUD

Scenic River LUD

State Highway

National Forest System Road - Open

National Forest System Road - Stored

Non-National Forest 

System Road

Proposed Reconstructed Road

Proposed System Road 

(reopened Decommissioned)

Proposed Temporary Road 

(reopened Decommissioned)

Proposed System Road

Proposed Temporary

Road

Old Growth

Helicopter

Shovel or Cable

Partial Cut

Young Growth

Systematic Strip Thin

Uniform Crown Thin

Class 1 Stream

Class 2 Stream

Class 3 Stream

Class 4 Stream

Lake

100’ Contour

Eagle Nest Buffer

Legacy

Visual Buffer

Deferred (within

Original Unit

Reconnaissance

Area)

595

RR

SR

R:\projects_2010\BigThorneEIS\maps\Unitcards\ROD.mxd 3 June 2013

Appendix 1 - Unit Cards - 545 Appendix 1
Unit 

Number: 438

Alternatives: ROD Total Unit 54.0

Acres: 

Prescription: Clearcut

VCU 

Number: 585

Yarding System:

Cable, Shovel, Helicopter

Net Harvest

Volume 836 

(MBF): 

LUD: Modified Landscape

Summary of Concerns, Responses, BMPs and Mitigation

SILVICULTURE: Existing Conditions: Unit 438 is a mixed species stand with a mosaic of uneven-age and old 

growth stand structure. Moderate to high windthrow, moderate to light defect and a moderate to high occurrence of 

mistletoe was found. Volume Class 5-6 timber occurs throughout the unit with areas of non-merchantable timber in 

recent windthrow patches. The overstory of the stand is mainly Western Hemlock, Western redcedar and Sitka 

spruce. The average overstory tree class rating is unacceptable except in areas of older even-age structure where the 

average tree class was acceptable. The primary damage in the overstory is stem decay.

Silvicultural Prescription: Even-age Management - Clearcut

This stand is mature with moderate levels of decay and defect resulting in a situation where stand growth is being 

offset by decay. Even-aged clear cutting is being prescribed to preclude or minimize the risk of windthrow post 

harvest, promote natural regeneration by opening up the canopy, and minimize defect and disease in the future stand 

to the maximum extent possible.

The legacy standard and guide applies in this VCU. This requires that approximately 24 acres of productive old 

growth representative of the overall composition of the planned harvest area be maintained. Legacy was placed to 

block up POG and screen the majority of unit from NFS road 3000000 and Clarence Strait; legacy also widens 

buffer above road along Salamander Creek. Legacy was also used to help divide unit into four separate openings. 

Total mapped legacy is approximately 25 acres.

TIMBER/YARDING: Cable settings yard to the proposed temporary roads. Shovel settings yard to the northern 

proposed temporary road and NFS roads 3000000 and 3000153. Helicopter settings yard to the northern proposed 

temporary road. Shovel yarding need a corridor through the visual buffer along NFS road 3000000.

ENGINEERING/ROADS: Unit is accessed by two proposed temporary roads, totaling 600 feet.

BOTANY: No Concerns

INVASIVE SPECIES: No Concerns

FISHERIES: Streams drain to Clarence Strait

Stream # 1 Class: I Flagging: B/W C- Type: HCM, MCS Concerns: none 

Buffer (RMA): Class I for HCM and MCS- greater of 100 feet or the top of the side-slope break. 

Alternatives: ROD Buffer (RAW): no review needed Protection: Category A

Stream # 1.1R Class: I, IV Flagging: B/W, G/W C- Type: MMO, HCO Concerns: none 

Buffer (RMA): Class I for MMO- greater of 120 feet, flood plain, riparian vegetation or soils, or riparian associated 

wetland fens. Class IV for HCO- none

Alternatives: ROD Buffer (RAW): no review needed Protection: Category A and C

Stream # 1.2R Class: I, IV Flagging: B/W, G/W C- Type: HCO Concerns: none 

Buffer (RMA): Class I for HCO- greater of 100 feet or the top of the side-slope break. Class IV for HCO- none

Alternatives: ROD Buffer (RAW): no review needed Protection: Category A and C

Stream # 1.3R Class: I, IV Flagging: B/W, G/W C- Type: HCO Concerns: none 

Buffer (RMA): Class I for HCO- greater of 100 feet or the top of the side-slope break. Class IV for HCO- none

Alternatives: ROD Buffer (RAW): no review needed Protection: Category A and C

Stream # 2 Class: I, II, IV Flagging: B/W, G/W C- Type: MMO, HCO Concerns: none 

Buffer (RMA): Class I for MMO- greater of 120 feet, flood plain, riparian vegetation or soils, or riparian associated 

wetland fens. Class II for HCO- greater of 100 feet or the top of the side-slope break. Class IV for HCO- none

Alternatives: ROD Buffer (RAW): no review needed Protection: Category A and C

Stream # 2.1L Class: I, II, IV Flagging: B/W, G/W C- Type: MMO, HCO Concerns: none 

546 - Big Thorne Project Record of Decision Appendix 1
Buffer (RMA): Class I for MMO- greater of 120 feet, flood plain, riparian vegetation or soils, or riparian associated 

wetland fens. Class II for HCO- greater of 100 feet or the top of the side-slope break. Class IV for HCO- none

Alternatives: ROD Buffer (RAW): no review needed Protection: Category A and C

Stream # 2.1L.1L Class: I, II, IV Flagging: B/W, G/W C- Type: MMO, HCO Concerns: none 

Buffer (RMA): Class I for MMO- greater of 120 feet, flood plain, riparian vegetation or soils, or riparian associated 

wetland fens. Class II for HCO- greater of 100 feet or the top of the side-slope break. Class IV for HCO- none

Alternatives: ROD Buffer (RAW): no review needed Protection: Category A and C

Stream # 2.1L.1L.1L Class: II, IV Flagging: B/W, G/W C- Type: HCO Concerns: none 

Buffer (RMA): Class II for HCO- greater of 100 feet or the top of the side-slope break. Class IV for HCO- none

Alternatives: ROD Buffer (RAW): no review needed Protection: Category A and C

All other streams in unit: Class: IV Flagging: G/W C- Type: HC or MM 

Buffer (RMA): none Buffer (RAW): no review needed Protection: Category C

Temporary roads for Unit 438: No known stream crossings. If any stream crossings are found, crossings structures

and locations will be approved by USFS, in consultation with fisheries biologist or hydrologist, prior to construction 

(BMP 14.17). During construction of temporary roads implement BMPs 12.17, 13.10, 13.11, 13.16, 14.3, and 14.5.

GEOLOGY/KARST: No Concerns

HERITAGE RESOURCES: This unit was investigated per the third amended interagency Programmatic Agreement 

(PA) for historic properties. As specified by the PA, any potential adverse effect on historic properties (if any) was 

mitigated and portions of the Area of Potential Effect will be monitored by a qualified heritage specialist during 

and/or after actual ground disturbance.

SCENERY: Unit is primarily in Moderate SIO, with a small amount of Very Low in the north. Legacy areas have 

been placed to screen or reduce visibility from the 3000000 Road and saltwater use areas. Acreage in legacy is 

greater than the minimum because of visual concerns. Legacy was also used to help divide unit into four separate 

openings. Typical opening sizes identified by the Forest Plan for Moderate SIO areas with Intermediate VAC are 15 

to 40 acres. Because of the separate openings that are spread north to south over 1 mile and topographic and 

vegetative screening, no more than about 10 to 15 acres of each opening are visible and, generally, about two 

openings can be seen at a time.

RECREATION: No concerns

SOILS/WETLANDS: Slopes range from 15 to greater than 72%. About 2 acres of slopes greater than 72% are 

suitable for harvest with full suspension. Forested wetlands occur throughout the unit (R10 BMP 12.5 and National 

Core BMPs AqEco-2 and AqEco-4). In the remainder of the unit, the soils and wetlands are suitable for a minimum 

of partial suspension cable yarding, helicopter yarding, or shovel yarding and should follow R10 BMPs 12.5, 13.2 

and 13.9 and National Core BMPs Plan-2, Veg-2, Veg-4, Veg-5, and Veg-6. Follow shovel yarding guidelines 

outlined in the introductions to unit cards (R10 BMP 13.9 and National Core Veg-4).

The proposed temporary roads will cross about 2 acres of forested wetlands. Wetland avoidance is not practicable 

due to the existing road location, contours, and the extent of wetland in the unit. Provide adequate cross drainage, 

remove drainage structures, and close road after harvest. Follow R10 BMPs12.5 and 14.9 and National Core BMPs 

AqEco-2, AqEco-4, Road-2, and Road-7.

WILDLIFE: Unit includes average snow deer winter range (entire unit), some of which is also deep snow marten 

habitat/deer winter range (western lobe of unit), and low elevation/high volume POG that is limited in the VCU. 

Unit is within 2008 Forest Plan OGR. Unit is adjacent to OGR boundary. Legacy standard and guideline applies in 

this VCU; positioning of Legacy acres covers some deer winter range and marten habitat.

Appendix 1 - Unit Cards - 547 Appendix 1
3000160

3000160

3000170

3000153

3000000

2.1L

2.1L.1L.1L

2.1L.1 L

2

1.1R.1l

11.1R

1.1R

1.4R

1.2R

1.3R

1.1R

1965

1966

1973

1991

138

438

A

A

B

B

C

C

D

D

E

E

F

F

G

G

H

H

I

I

J

J

10 10

9 9

8 8

7 7

6 6

5 5

4 4

3 3

2 2

1 1

Unit Number 438 ROD VCU: 

0 500

Feet

Past Harvest

(Year Origin)

Unsuitable Soils

Riparian Management

Area

Slope > 72%

Other Ownership

Old Growth Habitat LUD

Recreation River LUD

Scenic River LUD

State Highway

National Forest System Road - Open

National Forest System Road - Stored

Non-National Forest 

System Road

Proposed Reconstructed Road

Proposed System Road 

(reopened Decommissioned)

Proposed Temporary Road 

(reopened Decommissioned)

Proposed System Road

Proposed Temporary

Road

Old Growth

Helicopter

Shovel or Cable

Partial Cut

Young Growth

Systematic Strip Thin

Uniform Crown Thin

Class 1 Stream

Class 2 Stream

Class 3 Stream

Class 4 Stream

Lake

100’ Contour

Eagle Nest Buffer

Legacy

Visual Buffer

Deferred (within

Original Unit

Reconnaissance

Area)

585

RR

SR

R:\projects_2010\BigThorneEIS\maps\Unitcards\ROD.mxd 3 June 2013

548 - Big Thorne Project Record of Decision Appendix 1
Unit 

Number: 440 

Alternatives: ROD Total Unit 103.4 

Acres: 

Prescription: Clearcut and 50% 

Removal 

VCU 

Number: 580 

Yarding System: 

Cable, Shovel, Helicopter 

Net Harvest 

Volume 1720 

(MBF): 

LUD: Timber Production 

Summary of Concerns, Responses, BMPs and Mitigation 

SILVICULTURE: Existing Conditions: Unit 440 is a western hemlock and western redcedar stand that changes to 

near pure western hemlock in the far southwestern point of the unit. Old-growth stand structure dominates the area. 

Minor windthrow, moderate defect, and a high incidence of mistletoe define the stand. All adjacent past harvest 

areas have regeneration at least 5 feet tall, meeting NFMA requirements for no longer being considered openings. 

Silvicultural Prescription: Even-age Management – Clearcut (cable and shovel settings) 

This stand is mature with moderate levels of decay and defect resulting in a situation where stand growth is being 

offset by decay. Even-aged clear cutting is being prescribed to preclude or minimize the risk of windthrow postharvest, promote natural regeneration by opening up the canopy, and minimize defect and disease in the future stand 

to the maximum extent possible. 

Silvicultural Prescription: Uneven-age Management Single Tree Selection (Helicopter settings) 

Maintain at least 50 percent of the setting pretreatment basal area, based on standing live tree total for the unit, 

uncut. Review the marking guides in the harvest prescription for this unit to obtain basal area by species allowances 

and other specific instructions. Review the introduction to the unit cards for general guidance. This system is not 

optimum for promoting timber production but is being prescribed primarily to address economic concerns. 

A Tongass Wide Young Growth Study site (POW Thorne River #3) is along the southeast boundary. Protection of 

this site is required. Contact the Forestry Sciences Lab in Juneau for additional information. 

TIMBER/YARDING: Cable, helicopter and shovel yarding to NFS road 3015000. 

ENGINEERING/ROADS: No proposed road construction or reconstruction. 

BOTANY: One lesser round-leaved orchid plant is within the southwestern portion of unit. 

INVASIVE SPECIES: Orange hawkweed is known along the existing NFS road 3015000. Future monitoring is 

recommended to ensure the infestation does not spread as a result of the project activities. 

FISHERIES: Streams are tributaries to Thorne River. Characteristics for Stream 1.ZL do not include projectspecific, field-verified information. This information will be collected prior to implementation. 

Stream # 1.AL Class: I, IV Flagging: B/W, G/W C- Type: HCO Concerns: none 

Buffer (RMA): Class I for HCO- greater of 100 feet or the top of the side-slope break. Class IV for HCO- none 

Alternatives: ROD Buffer (RAW): no review needed Protection: Category A and C 

Stream # 1.YL Class: I, II, IV Flagging: B/W, G/W C- Type: MMO, HCL, HCO Concerns: none 

Buffer (RMA): Class I for MMO- greater of 120 feet, flood plain, riparian vegetation or soils, or riparian associated 

wetland fens. Class II for HCL- greater of 100 feet or the top of the side-slope break. Class IV for HCO- none 

Alternatives: ROD Buffer (RAW): no review needed Protection: Category A and C 

Stream # 1.ZL Class: II Flagging: B/W C- Type: MMO Concerns: none 

Buffer (RMA): Class II for MMO- greater of 120 feet, flood plain, riparian vegetation or soils, or riparian associated 

wetland fens. 

Alternatives: ROD Buffer (RAW): no review needed Protection: Category A 

Stream # 2.51R Class: I Flagging: B/W C- Type: MMO, HCO Concerns: none 

Buffer (RMA): Class I for MMO- greater of 120 feet, flood plain, riparian vegetation or soils, or riparian associated 

wetland fens. Class I for HCO- greater of 100 feet or to the top of the side-slope break. 

Alternatives: ROD Buffer (RAW): no review needed Protection: Category A 

Stream # 2.52R Class: I, IV Flagging: B/W, G/W C- Type: MMO, HCM, HCO Concerns: none 

Buffer (RMA): Class I for MMO- greater of 120 feet, flood plain, riparian vegetation or soils, or riparian associated 

wetland fens. Class I for HCM and HCO- greater of 100 feet or to the top of the side-slope break. 

Appendix 1 - Unit Cards - 549 Appendix 1
Class IV for HCO- none 

Alternatives: ROD Buffer (RAW): no review needed Protection: Category A and C 

Stream # 10 Class: II, III, IV Flagging: B/W, O/W, G/W C- Type: HCL, HCO Concerns: none 

Buffer (RMA): Class II for HCL- greater of 100 feet or the top of the side-slope break. Class III for HCL- to the top 

of the side-slope break. Class IV for HCO- none 

Alternatives: ROD Buffer (RAW): no review needed Protection: Category A, B, and C 

Stream # 11 Class: I, II, III Flagging: B/W, O/W C- Type: MMM, HCM Concerns: none 

Buffer (RMA): Class I for MMM- greater of 120 feet, flood plain, riparian vegetation or soils, or riparian associated 

wetland fens. Class II for HCM- greater of 100 feet or the top of the side-slope break. Class III for HCM- to the top 

of the side-slope break. 

Alternatives: ROD Buffer (RAW): no review needed Protection: Category A and B 

Stream # 11.2R Class: III, IV Flagging: O/W, G/W C- Type: HCM, HCO Concerns: none 

Buffer (RMA): Class III for HCM- to the top of the side-slope break. Class IV for HCO- none 

Alternatives: ROD Buffer (RAW): no review needed Protection: Category B and C 

Stream # 14 Class: I, III Flagging: B/W, O/W C- Type: HCM Concerns: none 

Buffer (RMA): Class I for HCM- greater of 100 feet or the top of the side-slope break. Class III for HCM- to the 

top of the side- slope break. 

Alternatives: ROD Buffer (RAW): no review needed Protection: Category A and B 

Stream # 14.1L Class: III Flagging: O/W C- Type: HCD Concerns: none 

Buffer (RMA): Class III for HCD- to the top of the side-slope break. 

Alternatives: ROD Buffer (RAW): no review needed Protection: Category B 

Stream # 20 Class: III, IV Flagging: O/W, G/W C- Type: HCM, HCO Concerns: none 

Buffer (RMA): Class III for HCM- to the top of the side-slope break. Class IV for HCO- none 

Alternatives: ROD Buffer (RAW): no review needed Protection: Category B and C 

Stream # 23 Class: III Flagging: O/W C- Type: HCM Concerns: none 

Buffer (RMA): Class III for HCM- to the top of the side-slope break. 

Alternatives: ROD Buffer (RAW): no review needed Protection: Category B 

All other streams in unit: Class: IV Flagging: G/W C- Type: HC or MM 

Buffer (RMA): none Buffer (RAW): no review needed Protection: Category C 

GEOLOGY/KARST: No Concerns 

HERITAGE RESOURCES: This unit was investigated per the third amended interagency Programmatic Agreement 

(PA) for historic properties. As specified by the PA, any potential adverse effect on historic properties (if any) was 

mitigated and portions of the Area of Potential Effect will be monitored by a qualified heritage specialist during 

and/or after actual ground disturbance. 

SCENERY: No concerns 

RECREATION: No concerns 

SOILS/WETLANDS: Slopes range from 20 to 70%. About 1 acre was excluded due to very high landslide 

potential, steep wet slopes, and colluvial activity. Forested wetlands occupy the portion of the unit below the 

3015000 road (R10 BMP 12.5 and National Core BMPs AqEco-2 and AqEco-4). Tin the remainder of the unit, the 

soils and wetlands are suitable for a minimum of partial suspension cable yarding, helicopter yarding, or shovel 

yarding and should follow R10 BMPs 12.5, 13.2 and 13.9 and National Core BMPs Plan-2, Veg-2, Veg-4, Veg-5, 

and Veg-6. Follow shovel yarding guidelines outlined in the introductions to unit cards (R10 BMP 13.9 and National 

Core Veg-4). 

WILDLIFE: Unit includes average snow deer winter range (entire unit). Unit is within the 2008 Forest Plan OGR, 

which was moved under Alternative 3. Unit is located in an area that connects the Honker large OGR with saltwater 

near Sal Creek. Legacy standard and guideline does not apply in this VCU. 

550 - Big Thorne Project Record of Decision Appendix 1
3015000

15.1R

1

26

1.1R

24

2

2 5

2.50R

1

2L

14

1

1.AL

22.1R

2.51R

25

11.1 R

1.1R

26

22

11

2.5 2 R

24 11

15.2R

21

1.YL

15

2.49R

10

2.5 2R.A R

20

1.ZL

1.10L

23

14

11.2R

14

4

14

10

4.1R

1

13

2.52R

28

24.1R

14.1L

3

27

1

1976

1992

1980

1988

1975

104 444

440

104

A

A

B

B

C

C

D

D

E

E

F

F

G

G

H

H

I

I

J

J

10 10

9 9

8 8

7 7

6 6

5 5

4 4

3 3

2 2

1 1

Unit Number 440 ROD VCU: 

0 500

Feet

Past Harvest

(Year Origin)

Unsuitable Soils

Riparian Management

Area

Slope > 72%

Other Ownership

Old Growth Habitat LUD

Recreation River LUD

Scenic River LUD

State Highway

National Forest System Road - Open

National Forest System Road - Stored

Non-National Forest 

System Road

Proposed Reconstructed Road

Proposed System Road 

(reopened Decommissioned)

Proposed Temporary Road 

(reopened Decommissioned)

Proposed System Road

Proposed Temporary

Road

Old Growth

Helicopter

Shovel or Cable

Partial Cut

Young Growth

Systematic Strip Thin

Uniform Crown Thin

Class 1 Stream

Class 2 Stream

Class 3 Stream

Class 4 Stream

Lake

100’ Contour

Eagle Nest Buffer

Legacy

Visual Buffer

Deferred (within

Original Unit

Reconnaissance

Area)

580

RR

SR

R:\projects_2010\BigThorneEIS\maps\Unitcards\ROD.mxd 3 June 2013

Appendix 1 - Unit Cards - 551 Appendix 1
Unit 

Number: 444

Alternatives: ROD Total Unit 39.6

Acres: 

Prescription: 25% Removal

VCU 

Number: 580 

Yarding System:

Helicopter

Net Harvest

Volume 337

(MBF): 

LUD: Timber Production

Summary of Concerns, Responses, BMPs and Mitigation

SILVICULTURE: Existing Conditions: Unit 444 is an old-growth stand comprised of a mixture of western 

hemlock, western redcedar and Alaska-cedar, with a few Sitka spruce in the lowest elevations. Windthrow risk is 

low in the lower elevations and high in the upper elevations of the stand with evidence of past windthrow being 

common there. Topographic exposure to storm winds is high in the upper elevations. Mistletoe was low in the upper 

elevations and moderate in the lower elevations. The primary defect in the overstory is stem decay, but in the upper 

elevations wind damage is also prevalent. All adjacent past harvest areas have regeneration at least 5 feet tall, 

meeting NFMA requirements for no longer being considered openings.

Silvicultural Prescription: Uneven-age Management Single Tree Selection

Maintain at least 25 percent of the setting pretreatment basal area, based on standing live tree total for the unit, 

uncut. Review the marking guides in the harvest prescription for this unit to obtain basal area by species allowances 

and other specific instructions. Review the introduction to the unit cards for general guidance. This system is not 

optimum for promoting timber production but is being prescribed primarily to address economic and windthrow 

concerns.

A Tongass Wide Young Growth Study site (POW Thorne River #3) is along the 3015000 road to the southwest of 

the unit. Protection of this site is required. Contact the Forestry Sciences Lab in Juneau for additional information.

TIMBER/YARDING: Helicopter yarding to NFS roads 3015000 and 3015600.

ENGINEERING/ROADS: No proposed road construction or reconstruction.

BOTANY: No Concerns

INVASIVE SPECIES: No Concerns

FISHERIES: Streams are tributaries to Thorne River

Stream # 14 Class: I, III Flagging: B/W, O/W C- Type: HCM Concerns: none 

Buffer (RMA): Class I for HCM- greater of 100 feet or the top of the side-slope break. Class III for HCM- to the 

top of the side- slope break. 

Alternatives: ROD Buffer (RAW): no review needed Protection: Category A and B

Stream # 15.1R Class: II, IV Flagging: B/W, G/W C- Type: HCL, HCO Concerns: none 

Buffer (RMA): Class II for HCL- greater of 100 feet or the top of the side-slope break. Class IV for HCO- none

Alternatives: ROD Buffer (RAW): no review needed Protection: Category A and C 

Stream # 15.1R.1L Class: II Flagging: B/W C- Type: HCO Concerns: none 

Buffer (RMA): Class II for HCO- greater of 100 feet or the top of the side-slope break. 

Alternatives: ROD Buffer (RAW): no review needed Protection: Category A 

Stream # 21 Class: I, II, III, IV Flagging: B/W, O/W, G/W C- Type: HCO, HCL, HCM Concerns: none 

Buffer (RMA): Class I and II for HCO, HCL, and HCM- greater of 100 feet or the top of the side-slope break. Class 

III for HCM- to the top of the side-slope break. Class IV for HCO- none

Alternatives: ROD Buffer (RAW): no review needed Protection: Category A, B, and C 

Stream # 22 Class: II, III, IV Flagging: B/W, O/W, G/W C- Type: HCL, HCM, HCO Concerns: none 

Buffer (RMA): Class II for HCL- greater of 100 feet or the top of the side-slope break. Class III for HCM- to the top 

of the side-slope break. Class IV for HCO- none

Alternatives: ROD Buffer (RAW): no review needed Protection: Category A, B, and C 

All other streams in unit: Class: IV Flagging: G/W C- Type: HC or MM 

Buffer (RMA): none Buffer (RAW): no review needed Protection: Category C

GEOLOGY/KARST: No Concerns

552 - Big Thorne Project Record of Decision Appendix 1
HERITAGE RESOURCES: This unit was investigated per the third amended interagency Programmatic Agreement 

(PA) for historic properties. As specified by the PA, any potential adverse effect on historic properties (if any) was 

mitigated and portions of the Area of Potential Effect will be monitored by a qualified heritage specialist during 

and/or after actual ground disturbance.

SCENERY: No concerns

RECREATION: No concerns

SOILS/WETLANDS: Slopes range from 15 to 120%. All slopes greater than 72% are excluded from harvest. About 

14 acres were excluded due to steep slopes, active and historic landslides, saturated hollows, and colluvial activity. 

Isolated forested wetlands are found in southern portion of the unit (R10 BMP 12.5 and National Core BMPs 

AqEco-2 and AqEco-4). In the remainder of the unit, a minimum of partial suspension would meet soil and wetland 

resource concerns (R10 BMPS 12.5, 13.5, and 13.9 and National Core BMPs Plan-2, AqEco-2, AqEco-4, Veg-1, 

Veg-2, and Veg-5).

WILDLIFE: Unit includes average snow deer winter range (entire unit). Unit is within 2008 Forest Plan OGR and is 

located in an area that connects the Honker large OGR with the beach near Sal Creek. Legacy standard and 

guideline does not apply in this VCU.

Appendix 1 - Unit Cards - 553 Appendix 1
3015640

24

22

1 5 1. R

21

14.4 R

14.3 R

14

15.1R

14

11

10

22.1R

25

26

22

1

15 .2R

14.1L

21

15

10

20

15.1R.1L

23

14

11.2R

1976

1976

1976

1992

1992

1975

447

440

444

A

A

B

B

C

C

D

D

E

E

F

F

G

G

H

H

I

I

J

J

10 10

9 9

8 8

7 7

6 6

5 5

4 4

3 3

2 2

1 1

Unit Number 444 ROD VCU: 

0 500

Feet

Past Harvest

(Year Origin)

Unsuitable Soils

Riparian Management

Area

Slope > 72%

Other Ownership

Old Growth Habitat LUD

Recreation River LUD

Scenic River LUD

State Highway

National Forest System Road - Open

National Forest System Road - Stored

Non-National Forest 

System Road

Proposed Reconstructed Road

Proposed System Road 

(reopened Decommissioned)

Proposed Temporary Road 

(reopened Decommissioned)

Proposed System Road

Proposed Temporary

Road

Old Growth

Helicopter

Shovel or Cable

Partial Cut

Young Growth

Systematic Strip Thin

Uniform Crown Thin

Class 1 Stream

Class 2 Stream

Class 3 Stream

Class 4 Stream

Lake

100’ Contour

Eagle Nest Buffer

Legacy

Visual Buffer

Deferred (within

Original Unit

Reconnaissance

Area)

580

RR

SR

R:\projects_2010\BigThorneEIS\maps\Unitcards\ROD.mxd 3 June 2013

554 - Big Thorne Project Record of Decision Appendix 1
Unit 

Number: 447

Alternatives: ROD Total Unit 9.1

Acres: 

Prescription: Clearcut

VCU 

Number: 580 

Yarding System:

Shovel, Helicopter

Net Harvest

Volume 197

(MBF): 

LUD: Timber Production

Summary of Concerns, Responses, BMPs and Mitigation

SILVICULTURE: Existing Conditions: Unit 447 is a western hemlock and western redcedar stand with old growth 

structure. Alaska-cedar occurs as a minor component. Low windthrow, moderate defect and a low occurrence of 

mistletoe was found. The larger overstory hemlock trees are particularly high defect. All adjacent past harvest areas 

have regeneration at least 5 feet tall, meeting NFMA requirements for no longer being considered openings.

Silvicultural Prescription: Even-age Management - Clearcut

This stand is mature with high levels of decay and defect resulting in a situation where stand growth is being offset 

by decay. Even-aged clear cutting is being prescribed to promote natural regeneration by opening up the canopy, and 

minimize defect and disease in the future stand to the maximum extent possible.

TIMBER/YARDING: Shovel and helicopter yarding to NFS road 3015600.

ENGINEERING/ROADS: No proposed road construction or reconstruction.

BOTANY: No Concerns

INVASIVE SPECIES: No Concerns

FISHERIES: Streams are tributaries to Thorne River

Stream # 1 Class: I Flagging: B/W C- Type: FPM, MCM Concerns: none 

Buffer (RMA): Class I for FPM- greater of 130 feet, flood plain, riparian vegetation or soils, or riparian associated 

wetland fens. Class I for MCM- greater of 100 feet or the top of the side-slope break. 

Alternatives: ROD Buffer (RAW): no review needed Protection: Category A 

Stream # 1.1R.1L Class: I, II Flagging: B/W C- Type: MMO, HCO Concerns: none

Buffer (RMA): Class I for MMO- greater of 120 feet, flood plain, riparian vegetation or soils, or riparian associated 

wetland fens. Class I and II for HCO- greater of 100 feet or to the top of the side-slope break. 

Alternatives: ROD Buffer (RAW): no review needed Protection: Category A 

Stream # 1.1R.2L Class: I, II Flagging: B/W C- Type: HCO Concerns: none

Buffer (RMA): Class I and II for HCO- greater of 100 feet or to the top of the side-slope break. 

Alternatives: ROD Buffer (RAW): no review needed Protection: Category A

 

Stream # 1.2R Class: I, II Flagging: B/W C- Type: MMS Concerns: none

Buffer (RMA): Class I and II for MMS- greater of 120 feet, flood plain, riparian vegetation or soils, or riparian 

associated wetland fens.

Alternatives: ROD Buffer (RAW): review required for south side. Protection: Category A

All other streams in unit: Class: IV Flagging: G/W C- Type: HC or MM 

Buffer (RMA): none Buffer (RAW): no review needed Protection: Category C

GEOLOGY/KARST: No Concerns

HERITAGE RESOURCES: This unit was investigated per the third amended interagency Programmatic Agreement 

(PA) for historic properties. As specified by the PA, any potential adverse effect on historic properties (if any) was 

mitigated and portions of the Area of Potential Effect will be monitored by a qualified heritage specialist during 

and/or after actual ground disturbance.

SCENERY: No concerns

RECREATION: This unit is located along the North Thorne Falls fishing access route. Recreation use of this site 

has caused soil erosion and vegetation loss. Harvest in this unit would temporarily prevent recreation use along this 

route, but visitors would likely create a new trail to the river following harvest activities.

SOILS/WETLANDS: Slopes range from 0 to 35%. Forested wetlands are found throughout the unit (R10 BMP 

12.5 and National Core BMPs AqEco-2 and AqEco-4). The soils and wetlands are suitable for shovel yarding. 

Follow shovel yarding guidelines outlined in the introductions to unit cards (R10 BMP 13.9 and National Core 

BMPs Plan-2, Veg-2, and Veg-4).

Appendix 1 - Unit Cards - 555 Appendix 1
WILDLIFE: Unit includes average snow deer winter range (entire unit). Unit is within the 2008 Forest Plan OGR. It

is located in an area that connects the Honker large OGR with beach near Sal Creek. Legacy standard and guideline 

does not apply in this VCU.

556 - Big Thorne Project Record of Decision Appendix 1
3015600

3015600

3015635

1.2R.1R

1.3R

22

1.2 R

1.1R

1.1R.2 L

1.1R.1L

1

21

1

1

1

15

1975

1992

1986

1975

444

447

447

447

447

A

A

B

B

C

C

D

D

E

E

F

F

G

G

H

H

I

I

J

J

10 10

9 9

8 8

7 7

6 6

5 5

4 4

3 3

2 2

1 1

Unit Number 447 ROD VCU: 

0 500

Feet

Past Harvest

(Year Origin)

Unsuitable Soils

Riparian Management

Area

Slope > 72%

Other Ownership

Old Growth Habitat LUD

Recreation River LUD

Scenic River LUD

State Highway

National Forest System Road - Open

National Forest System Road - Stored

Non-National Forest 

System Road

Proposed Reconstructed Road

Proposed System Road 

(reopened Decommissioned)

Proposed Temporary Road 

(reopened Decommissioned)

Proposed System Road

Proposed Temporary

Road

Old Growth

Helicopter

Shovel or Cable

Partial Cut

Young Growth

Systematic Strip Thin

Uniform Crown Thin

Class 1 Stream

Class 2 Stream

Class 3 Stream

Class 4 Stream

Lake

100’ Contour

Eagle Nest Buffer

Legacy

Visual Buffer

Deferred (within

Original Unit

Reconnaissance

Area)

580

RR

SR

R:\projects_2010\BigThorneEIS\maps\Unitcards\ROD.mxd 3 June 2013

Appendix 1 - Unit Cards - 557 Appendix 1
Unit 

Number: 469

Alternatives: ROD Total Unit 39.9

Acres: 

Prescription: Clearcut

VCU 

Number: 581 

Yarding System:

Cable, Shovel

Net Harvest

Volume 1210

(MBF): 

LUD: Modified Landscape

Summary of Concerns, Responses, BMPs and Mitigation

SILVICULTURE: Existing Conditions: Unit 469 is a mixed species stand with western hemlock, western redcedar, 

Sitka spruce and Alaska- cedar. Generally, old-growth stand structure dominates however patchy areas of heavy 

past wind damage across the stand have a two-age stem exclusion structure. Heavy repeated wind damage, average 

to high defect, and a generally moderate incidence of mistletoe was noted. Breakage and stem decay are the primary

issues in the overstory. All adjacent past harvest areas have regeneration at least 5 feet tall, meeting NFMA 

requirements for no longer being considered openings.

Silvicultural Prescription: Even-age Management - Clearcut

This stand is mature with high levels of decay and defect resulting in a situation where stand growth is being offset 

by decay. Even-aged clear cutting is being prescribed to preclude or minimize the risk of windthrow post-harvest, 

promote natural regeneration by opening up the canopy, improve site productivity through increased soil 

temperature and minimize defect and disease in the future stand to the maximum extent possible.

This unit is adjacent to the Coffman Cove Loop road and due to the combination of Modified Landscape LUD and 

foreground distance zone, requires minimal visibility of harvest openings from this road. In order to meet this 

requirement a screen of trees is being prescribed to be maintained to block the harvest area from view. Utilize 

existing advanced young growth adjacent to the road to the maximum extent possible to achieve this screen. 

The legacy standard and guide applies in this VCU. Units 191, 192, 193, 469 and 470 combine to form a potential 

opening of 224 acres. This requires that approximately 67 acres of productive old growth representative of the 

overall composition of the planned harvest area be maintained within the combined 191, 192,193, 469 and 470 

potential opening. Legacy was placed to divide the combined opening, avoid sensitive plants, provide RAW and 

coincide with steep slopes, unsuitable soils and lower value timber. These units have a combined mapped legacy of 

approximately 74 acres. The majority of the legacy is within units 469 and 470. 

TIMBER/YARDING: Shovel settings yard to the proposed temporary road and NFS road 3030000. Cable settings 

yard to the proposed temporary road and NFS road 3030200.

ENGINEERING/ROADS: Unit is accessed by a proposed temporary road of 1,500 feet and proposed NFS road 

3030390, totaling 3,600 feet. Approximately 800 feet of this road will be constructed over decommissioned road 

bed. This road is also used to access Unit 470. See road card for information on NFS road.

BOTANY: Two lesser round-leaved orchid populations, with an estimated 207 and 565 plants each, were found 

during surveys for this unit. The larger population is mapped as over 300 acres, the proposed harvest for the unit 

overlaps with approximately 23 acres. The legacy, RMAs, and deferred portions of the unit overlap with 

approximately 22 acres. This population is also partially affected, directly and indirectly by harvest in units 470 and 

471, and just over 40 acres has been harvested previously. There are no direct effects to the smaller population, but 

it is partially within the indirect effects area for this proposed harvest unit.

INVASIVE SPECIES: No Concerns

FISHERIES: Streams are tributaries to Eagle Creek

Stream # 1.1R Class: II, III Flagging: B/W, O/W C- Type: HCL, HCM, HCO Concerns: debris in 

channel holding back bedload

Buffer (RMA): Class II for HCL- greater of 100 feet or to the top of the side-slope break. Class III for HCM and 

HCO- to the top of the side-slope break.

Alternatives: ROD Buffer (RAW): no review needed Protection: Category A and B

Stream # 1.1R.7L Class: II, III Flagging: B/W, O/W C- Type: MMO, HCL 

Concerns: existing LWD in channel is holding back bedload and sediment

Buffer (RMA): Class II for MMO- greater of 120 feet, flood plain, riparian vegetation or soils, or riparian 

associated wetland fens. Class III for HCL- to the top of the side-slope break.

Alternatives: ROD Buffer (RAW): no review needed Protection: Category A and B

558 - Big Thorne Project Record of Decision Appendix 1
Stream # 4 Class: II, III Flagging: B/W, O/W C- Type: HCM, HCD 

Concerns: blowdown, active erosion, steep side-slopes with loose soils and exposed bedrock, bedload storage.

Buffer (RMA): Class II for HCM- greater of 100 feet or to the top of the side-slope break. Class III for HCM and 

HCD- to the top of the side-slope break.

Alternatives: ROD Buffer (RAW): review required for northeast exposure Protection: Category A and B

Stream # 4.3R Class: II Flagging: B/W C-Type: HCO

Concerns: Yarding through RMA may be required.

Buffer (RMA): Class II for HCO- greater of 100 feet or to the top of the side-slope break. 

Alternatives: ROD Buffer (RAW): no review needed Protection: Category A

All other streams in unit: Class: IV Flagging: G/W C- Type: HC or MM 

Buffer (RMA): none Buffer (RAW): no review needed Protection: Category C

Temporary roads for Unit 469: One Class III and one Class IV stream crossing. If any additional stream crossings 

are found, crossings structures and locations will be approved by USFS, in consultation with fisheries biologist or 

hydrologist, prior to construction (BMP 14.17). During construction of temporary roads implement BMPs 12.17, 

13.10, 13.11, 13.16, 14.3, and 14.5.

GEOLOGY/KARST: No Concerns

HERITAGE RESOURCES: This unit was investigated per the third amended interagency Programmatic Agreement 

(PA) for historic properties. As specified by the PA, any potential adverse effect on historic properties (if any) was 

mitigated and portions of the Area of Potential Effect will be monitored by a qualified heritage specialist during 

and/or after actual ground disturbance.

SCENERY: Unit has 23 acres in Moderate SIO and 4 acres in Low SIO. It is adjacent to the Coffman Cove Loop 

road and requires minimal visibility of harvest openings from this road. In order to meet this requirement a screen of 

trees is being prescribed to be maintained to block the harvest area from view. Design this screen approximately as 

shown on the unit card map. Evaluate the effectiveness and windthrow risk of the planned screen at the time of 

layout and adjust as needed.

RECREATION: No Concerns

SOILS/WETLANDS: Slopes range from 15 to 85%. All slopes greater than 72% are excluded from harvest. About 

11 acres were excluded due to steep slopes, high landslide potential, and colluvial activity. Forested wetlands occur 

in the northwestern portion of the unit and in the upper elvations (R10 BMP 12.5 and National Core BMPs AqEco-2 

and AqEco-4). In the remainder of the unit, the soils and wetlands are suitable with a minimum of partial suspension 

cable yarding or shovel yarding and should follow R10 BMPs 12.5, 13.2 and 13.9 and National Core BMPs Plan-2, 

Veg-2, Veg-4, Veg-5, and Veg-6. Follow shovel yarding guidelines outlined in the introductions to unit cards (R10 

BMP 13.9 and National Core Veg-4).

The proposed temporary road crosses about 1⁄4 of an acre of forested wetlands. Wetland avoidance is not feasible due 

to streams, steep slopes, and contours. Provide adequate cross drainage, remove drainage structures, and close road 

after harvest. Follow R10 BMPs12.5 and 14.9 and National Core BMPs AqEco-2, AqEco-4, Road-2, and Road-7.

WILDLIFE: Unit includes average snow deer winter range (entire unit), all of which is also deep snow marten 

habitat/deer winter range. Unit is located within the 2008 Forest Plan OGR. Unit is adjacent to modified OGR. 

Legacy standard and guideline applies in this VCU; positioning of Legacy acres covers some deer winter 

range/marten habitat. See silviculture section.

Appendix 1 - Unit Cards - 559 Appendix 1
3030000

3030200

3030100

3030108

3030390

3030108

1.1R 9. R

1.1R 8. R

1.1R

1.1R.7L

1.1R.3 R

4.2R

1.1R.8R .1L

2

4.3R

4.1R.1 R

5

1.1R.1R.2L

1.1R.8R.2R

4.1L

4

4.3AR

1.1R.7L.1L

3

1.1R.7L.3L

1.1R.1R.2L .1L

1.1R.8R

1.1R

6

5.1L

5

1.1R.7L.2R

1.1R.5R.1L

1.1R.4 R

1.1R.5R

1.1R.1R.3 L

1.1R.1R.2L

4

1.1R.7L.1L

1.1R

1.1 R

4.1R

4

1989

1989

1974

1969

1995

470

572 191

469

A

A

B

B

C

C

D

D

E

E

F

F

G

G

H

H

I

I

J

J

10 10

9 9

8 8

7 7

6 6

5 5

4 4

3 3

2 2

1 1

Unit Number 469 ROD VCU: 

0 500

Feet

Past Harvest

(Year Origin)

Unsuitable Soils

Riparian Management

Area

Slope > 72%

Other Ownership

Old Growth Habitat LUD

Recreation River LUD

Scenic River LUD

State Highway

National Forest System Road - Open

National Forest System Road - Stored

Non-National Forest 

System Road

Proposed Reconstructed Road

Proposed System Road 

(reopened Decommissioned)

Proposed Temporary Road 

(reopened Decommissioned)

Proposed System Road

Proposed Temporary

Road

Old Growth

Helicopter

Shovel or Cable

Partial Cut

Young Growth

Systematic Strip Thin

Uniform Crown Thin

Class 1 Stream

Class 2 Stream

Class 3 Stream

Class 4 Stream

Lake

100’ Contour

Eagle Nest Buffer

Legacy

Visual Buffer

Deferred (within

Original Unit

Reconnaissance

Area)

581

RR

SR

R:\projects_2010\BigThorneEIS\maps\Unitcards\ROD.mxd 3 June 2013

560 - Big Thorne Project Record of Decision Appendix 1
Unit 

Number: 470

Alternatives: ROD Total Unit 67.6

Acres: 

Prescription: Clearcut

VCU 

Number: 581 

Yarding System:

Cable, Shovel

Net Harvest

Volume 1728

(MBF): 

LUD: Modified Landscape

Summary of Concerns, Responses, BMPs and Mitigation

SILVICULTURE: Existing Conditions: This unit is predominantly a western hemlock and western redcedar stand. 

Western hemlock and Alaska-cedar occur in the upper elevations. Generally old-growth stand structure dominates, 

however windthrow and stem breakage are extensive. Extensive repeated windthrow, moderate to high defect, and 

patches of heavy mistletoe were noted. All adjacent past harvest areas have regeneration at least 5 feet tall, meeting 

NFMA requirements for no longer being considered openings.

Silvicultural Prescription: Even-age Management - Clearcut

This stand is mature with moderate levels of decay and defect resulting in a situation where stand growth is being 

offset by decay. Even-aged clear cutting is being prescribed to preclude or minimize the risk of windthrow postharvest, promote natural regeneration by opening up the canopy, and minimize defect and disease in the future stand 

to the maximum extent possible.

This unit is adjacent to the Coffman Cove Loop road and due to the combination of Modified Landscape LUD and 

foreground distance zone, requires minimal visibility of harvest openings from this road. In order to meet this 

requirement a screen of trees is being prescribed to be maintained to block the harvest area from view. Utilize 

existing advanced young growth adjacent to the road to the maximum extent possible to achieve this screen. 

The legacy standard and guide applies in this VCU. Units 191, 192, 193, 469 and 470 combine to form a potential 

opening of 224 acres. This requires that approximately 67 acres of productive old growth representative of the 

overall composition of the planned harvest area be maintained within the combined 191, 192,193, 469 and 470 

potential opening. Legacy was placed to divide the combined opening, avoid sensitive plants, provide RAW and 

coincide with steep slopes, unsuitable soils and lower value timber. These units have a combined mapped legacy of 

approximately 74 acres. The majority of the legacy is within units 469 and 470. 

TIMBER/YARDING: Cable settings yard to proposed NFS road 3030390. Shovel settings yard to the proposed 

temporary road, proposed NFS road 3030390 and NFS road 3030000.

ENGINEERING/ROADS: Unit is accessed by a proposed temporary road of 500 feet and a proposed NFS road 

3030390, totaling 3,600 feet. Approximately 800 feet of this road will be constructed over decommissioned road 

bed. See road card for information on NFS road.

BOTANY: One lesser round-leaved orchid population, with 565 plants, was found during surveys for this unit. The 

harvest portion of the unit overlaps with approximately 31 acres of the population. The legacy, RMAs, and other 

deferred areas of the unit account for 76 acres of this population. This population is also partially affected, directly 

and indirectly by harvest in units 469 and 471, and just over 40 acres has been harvested previously. 

INVASIVE SPECIES: No Concerns

FISHERIES: Streams are tributaries to Eagle Creek

Stream#: 1.1R.1R.2L Class: II, IV Flagging: B/W, G/W C- Type: MMO, HCM Concerns: none

Buffer (RMA): Class II for MMO greater of 120 feet, flood plain, riparian vegetation or soils, or riparian associated 

wetland fens. Class IV for HCM none.

Alternatives: ROD Buffer (RAW): Will be identified by an IDT during layout

Protection: Category A and C

Stream # 1.1R Class: II, III Flagging: B/W, O/W C- Type: HCL, HCM, HCO 

Concerns: blowdown observed, debris blockages holding bedload material

Buffer (RMA): Class II for HCL- greater of 100 feet or to the top of the side-slope break. Class III for HCM and 

HCO- to the top of the side-slope break.

Alternatives: ROD Buffer (RAW): no review needed Protection: Category A and B

Stream # 1.1R.8R Class: II, III, IV Flagging: B/W, O/W, G/W C- Type: HCL, HCM, MMO 

Concerns: blowdown observed, LWD in channel holding back sediment

Appendix 1 - Unit Cards - 561 Appendix 1
Buffer (RMA): Class II for HCL- greater of 100 feet or to the top of the side-slope break. Class III for HCL and 

HCM- to the top of the side-slope break. Class IV for MMO- none

Alternatives: ROD Buffer (RAW): review required for northeast exposure Protection: Category A, B and C

Stream # 1.1R.9R Class: III, IV Flagging: O/W, G/W C- Type: HCL Concerns: blowdown observed

Buffer (RMA): Class III for HCL- to the top of the side-slope break. Class IV for HCL- none

Alternatives: ROD Buffer (RAW): review required for northeast exposure Protection: Category B and C

All streams in unit: Class: IV Flagging: G/W C- Type: HC or MM 

Buffer (RMA): none Buffer (RAW): no review needed Protection: Category C

Temporary roads for Unit 470: No known stream crossings. If any stream crossings are found, crossings structures 

and locations will be approved by USFS, in consultation with fisheries biologist or hydrologist, prior to construction 

(BMP 14.17). During construction of temporary roads implement BMPs 12.17, 13.10, 13.11, 13.16, 14.3, and 14.5.

GEOLOGY/KARST: No Concerns

HERITAGE RESOURCES: This unit was investigated per the third amended interagency Programmatic Agreement 

(PA) for historic properties. As specified by the PA, any potential adverse effect on historic properties (if any) was 

mitigated and portions of the Area of Potential Effect will be monitored by a qualified heritage specialist during 

and/or after actual ground disturbance.

SCENERY: Unit has 27 acres in Moderate SIO, 32 acres in Low SIO, and 9 acres in Very Low SIO. It is adjacent 

to the Coffman Cove Loop road and requires minimal visibility of harvest openings from this road. In order to meet 

this requirement a screen of trees is being prescribed (as legacy) to be maintained to restrict the harvest area from 

view. Design this screen approximately as shown on the unit card map. Evaluate the effectiveness and windthrow 

risk of the planned screen at the time of layout and adjust as needed.

RECREATION: No Concerns

SOILS/WETLANDS: Slopes range from 5 to 90%. All slopes greater than 72% are excluded from harvest. About 

15 acres were excluded due to steep slopes, colluvial activity, and high landslide potential. A muskeg was identified 

surrounded by forested wetlands along the eastern edge of the unit (R10 BMP 12.5 and National Core BMPs 

AqEco-2 and AqEco-4). In the remainder of the unit, the soils and wetlands are suitable with a minimum of partial 

suspension cable yarding or shovel yarding and should follow R10 BMPs 12.5, 13.2 and 13.9 and National Core 

BMPs Plan-2, Veg-2, Veg-4, Veg-5, and Veg-6. Follow shovel yarding guidelines outlined in the introductions to 

unit cards (R10 BMP 13.9 and National Core Veg-4).

The proposed temporary road crosses about 1⁄4 of an acre of forested wetland. Wetland avoidance is not feasible due 

to streams, steep slopes, and contours. Provide adequate cross drainage, remove drainage structures, and close road 

after harvest. Follow R10 BMPs12.5 and 14.9 and National Core BMPs AqEco-2, AqEco-4, Road-2, and Road-7.

WILDLIFE: Unit includes average snow deer winter range (entire unit), some of which is also deep snow marten 

habitat/deer winter range (northern and southern ends). Unit is located within the 2008 Forest Plan OGR.Unit is 

adjacent to the modified OGR. Legacy standard and guideline applies in this VCU; positioning of Legacy acres 

covers some deer winter range/marten habitat. See silviculture section.

562 - Big Thorne Project Record of Decision Appendix 1
3030100

3030270

3030200

3030300

3030000

3030390

1.1 R

1.1R.8R

1.1R.1R.2L

1.1R.1R.3L

1.1R.1R.1R.1L

1.1R.7L

1.1R.1R.2 L.1L

1.1R.1R

1.1R.3 R

1.1R

1.1

1 1. R.1R

1.1R 9. R

1.1R.1R

1.1R.1R.2L

1.1L

1.1R.8R.2R

1.1R.7L.1L

1.1R.7L.3L

1.1R.3R

1.1R.8R.1L

1.1R

1.1R.7L.2R

1.1R.2L

1.1R.1R.4R

1.1R.1R.1R

1.1R.5R.1L

1.1R.4 R

1.1R.5R

1. 1R.7L.1L

1.1R

1.1R.8R

1974

2004

1992

1974

1992

1974

1995

1989

1989

470

471

471

471

469

A

A

B

B

C

C

D

D

E

E

F

F

G

G

H

H

I

I

J

J

10 10

9 9

8 8

7 7

6 6

5 5

4 4

3 3

2 2

1 1

Unit Number 470 ROD VCU: 

0 500

Feet

Past Harvest

(Year Origin)

Unsuitable Soils

Riparian Management

Area

Slope > 72%

Other Ownership

Old Growth Habitat LUD

Recreation River LUD

Scenic River LUD

State Highway

National Forest System Road - Open

National Forest System Road - Stored

Non-National Forest 

System Road

Proposed Reconstructed Road

Proposed System Road 

(reopened Decommissioned)

Proposed Temporary Road 

(reopened Decommissioned)

Proposed System Road

Proposed Temporary

Road

Old Growth

Helicopter

Shovel or Cable

Partial Cut

Young Growth

Systematic Strip Thin

Uniform Crown Thin

Class 1 Stream

Class 2 Stream

Class 3 Stream

Class 4 Stream

Lake

100’ Contour

Eagle Nest Buffer

Legacy

Visual Buffer

Deferred (within

Original Unit

Reconnaissance

Area)

581

RR

SR

R:\projects_2010\BigThorneEIS\maps\Unitcards\ROD.mxd 3 June 2013

Appendix 1 - Unit Cards - 563 Appendix 1
Unit 

Number: 471

Alternatives: ROD Total Unit 34.9

Acres: 

Prescription: Clearcut

VCU 

Number: 581 

Yarding System:

Cable, Shovel

Net Harvest

Volume 682

(MBF): 

LUD: Modified Landscape

Summary of Concerns, Responses, BMPs and Mitigation

SILVICULTURE: Existing Conditions: This unit is an old-growth stand with windthrow and stem breakage 

resulting in some areas of even-aged stand structure. Variable windthrow and stem breakage, moderate stem decay, 

and moderate mistletoe were noted. The over- story of the stand is western hemlock, redcedar and spruce. All 

adjacent past harvest areas have regeneration at least 5 feet tall, meeting NFMA requirements for no longer being 

considered openings.

Silvicultural Prescription: Even-age Management - Clearcut

This stand is mature with moderate levels of decay and defect resulting in a situation where stand growth is being 

offset by decay. Even-aged clear cutting is being prescribed to preclude or minimize the risk of windthrow postharvest, promote natural regeneration by opening up the canopy, and minimize defect and disease in the future stand 

to the maximum extent possible.

This unit is adjacent to the Coffman Cove Loop road and due to the combination of Modified Landscape LUD and 

foreground distance zone, requires minimal visibility of harvest openings from this road. In order to meet this 

requirement screens of trees are being prescribed to be maintained to limit the harvest area from view. 

The legacy standard and guide applies in this VCU. This requires that approximately 14 acres of productive old 

growth representative of the overall composition of the planned harvest area be maintained indefinitely. Legacy was 

placed to consolidate POG, screen the unit from the 3030 road, shorten required road length, and avoid interference 

with logging. Total mapped legacy is approximately 15 acres. 

TIMBER/YARDING: Shovel settings yard to the proposed temporary roads and NFS road 3030000. Cable settings 

yard to the proposed temporary roads.

ENGINEERING/ROADS: Unit is accessed by two proposed temporary roads, totaling 1,900 feet.

BOTANY: One lesser round-leaved orchid population, with 565 plants, was found during surveys for this unit. The 

harvest portion of the unit overlaps with approximately 2 acres of the population. The legacy, RMAs, and other 

deferred areas of the unit overlap with 15 acres of the population. This population is also partially affected, directly 

and indirectly by harvest in units 469 and 470, and just over 40 acres has been harvested previously. 

INVASIVE SPECIES: No Concerns

FISHERIES: Streams are tributaries to Eagle Creek.

All streams in unit: Class: IV Flagging: G/W C- Type: HC or MM 

Buffer (RMA): none Buffer (RAW): no review needed

Protection: Category C

Temporary roads for Unit 471: No known stream crossings. The temporary roads have not been field verified and 

will be surveyed before implementation. If any stream crossings are found, crossings structures and locations will be 

approved by USFS, in consultation with fisheries biologist or hydrologist, prior to construction (BMP 14.17). 

During construction of temporary roads implement BMPs 12.17, 13.10, 13.11, 13.16, 14.3, and 14.5.

GEOLOGY/KARST: No Concerns

HERITAGE RESOURCES: This unit was investigated per the third amended interagency Programmatic Agreement 

(PA) for historic properties. As specified by the PA, any potential adverse effect on historic properties (if any) was 

mitigated and portions of the Area of Potential Effect will be monitored by a qualified heritage specialist during 

and/or after actual ground disturbance.

SCENERY: Unit has 11 acres in Moderate SIO and 22 acres in Low SIO. It is adjacent to the Coffman Cove Loop 

road and requires minimal visibility of harvest openings from this road. In order to meet this requirement a screen of 

trees is being prescribed (as legacy) to be maintained to restrict the harvest area from view. Design this screen 

approximately as shown on the unit card map. Evaluate the effectiveness and windthrow risk of the planned screen 

at the time of layout and adjust as needed.

RECREATION: No Concerns

564 - Big Thorne Project Record of Decision Appendix 1
SOILS/WETLANDS: Slopes range from 5 to 70%. Forested wetlands occur in the eastern portion of the unit 

surrounding a small muskeg (R10 BMP 12.5 and National Core BMPs AqEco-2 and AqEco-4). The soils and 

wetlands are suitable with a minimum of partial suspension cable yarding or shovel yarding and should follow R10 

BMPs 12.5, 13.2 and 13.9 and National Core BMPs Plan-2, Veg-2, Veg-4, Veg-5, and Veg-6. Follow shovel 

yarding guidelines outlined in the introductions to unit cards (R10 BMP 13.9 and National Core Veg-4).

The proposed temporary roads do not cross any wetlands. Provide adequate cross drainage, remove drainage 

structures, and close road after harvest. Follow R10 BMPs12.5 and 14.9 and National Core BMPs AqEco-2, AqEco4, Road-2, and Road-7.

WILDLIFE: Unit includes average snow deer winter range (entire unit), some of which is also deep snow marten 

habitat/deer winter range (northern half). Unit is located within the 2008 Forest Plan OGR. Unit is adjacent to 

modified OGR. Legacy standard and guideline applies in this VCU; positioning of Legacy acres covers some deer 

winter range/marten habitat. See silviculture section.

Appendix 1 - Unit Cards - 565 Appendix 1
3030000

3030300

3030270

3030390

1.1R.1R.1R

1.1R.1R.1R

1.1R.8R

1.1R.3R

1.1R.1R.2L

1.1R.1R.3L

1.1 L.1L

1.1R.1R.1R.1L

1.1R.1R

1 1. R 1. R

1.1R

9. R

1.1L.2L

1.1R.3R

1.1R.1R.2L

2 2

1.1R.8R.2R

1.1L

1.1R.1R.2 L.1L

1.1R.1R.4R

1970

1992

1974

1970

1992

1989

1992

1989

1974

470

471

471

471

A

A

B

B

C

C

D

D

E

E

F

F

G

G

H

H

I

I

J

J

10 10

9 9

8 8

7 7

6 6

5 5

4 4

3 3

2 2

1 1

Unit Number 471 ROD VCU: 

0 500

Feet

Past Harvest

(Year Origin)

Unsuitable Soils

Riparian Management

Area

Slope > 72%

Other Ownership

Old Growth Habitat LUD

Recreation River LUD

Scenic River LUD

State Highway

National Forest System Road - Open

National Forest System Road - Stored

Non-National Forest 

System Road

Proposed Reconstructed Road

Proposed System Road 

(reopened Decommissioned)

Proposed Temporary Road 

(reopened Decommissioned)

Proposed System Road

Proposed Temporary

Road

Old Growth

Helicopter

Shovel or Cable

Partial Cut

Young Growth

Systematic Strip Thin

Uniform Crown Thin

Class 1 Stream

Class 2 Stream

Class 3 Stream

Class 4 Stream

Lake

100’ Contour

Eagle Nest Buffer

Legacy

Visual Buffer

Deferred (within

Original Unit

Reconnaissance

Area)

581

RR

SR

R:\projects_2010\BigThorneEIS\maps\Unitcards\ROD.mxd 3 June 2013

566 - Big Thorne Project Record of Decision Appendix 1
Unit 

Number: 500

Alternatives: ROD Total Unit 3.8

Acres: 

Prescription: Crown Thinning

VCU 

Number: 597.2 

Yarding System:

Shovel

Net Harvest

Volume 22

(MBF): 

LUD: Modified Landscape

Summary of Concerns, Responses, BMPs and Mitigation

SILVICULTURE: Existing Conditions: This unit lies entirely within Stand #5972200501. The stand origination date 

is 1968. This stand was entirely pre-commercially thinned in 1982. The site potential in this area ranges from 

medium to high. The unit is currently in a successional stage of stem exclusion. This unit lies within the Deer Winter 

Range Landscape Zone.

Silvicultural Objective/Desired Condition (Deer Winter Range):

The management goal of young-growth treatment in this landscape zone is to improve growth, productivity, and 

forest health, while managing for a sustained yield, even flow of an industrial wood supply and improving deer 

winter range conditions in treated stands for the remainder of the rotation.

Silvicultural Prescription: Intermediate Treatment Crown Thinning

Apply crown thinning at approximately stand age 50. Crown thinning should retain at least 50% of the existing 

pretreatment stand basal area at that time. Retain trees in a generally uniform pattern. Skips or thickets may be left 

where logging system difficulties occur, in portions of settings where windthrow risk is expected to be unacceptable 

after thinning like along exposed stand edges or knobs, and in any areas where wildlife dens or nests are found. 

Gaps may occur where cable corridors come together near landings or other areas where extra room is needed to 

facilitate yarding or meet specific wildlife objectives.

This treatment is being proposed based on the analysis of current data for this stand projected forward in time using 

growth modeling. Marking guidelines covering the specifics of the treatment, such as species to favor for retention 

will be developed at the time of treatment.

TIMBER/YARDING: Shovel yarding to NFS road 3012000.

ENGINEERING/ROADS: No proposed road construction or reconstruction.

BOTANY: No Concerns

INVASIVE SPECIES: An infestation of orange hawkweed is known along the existing road, adjacent to the unit. 

Monitoring is recommended to ensure that the infestation does not spread as a result of project activities.

FISHERIES: No streams found in unit at time of survey. If streams are found during implementations a fish 

biologist would be notified and appropriate protections would be applied.

GEOLOGY/KARST: No Concerns

HERITAGE RESOURCES: This unit was investigated per the third amended interagency Programmatic Agreement 

(PA) for historic properties. As specified by the PA, any potential adverse effect on historic properties (if any) was 

mitigated and portions of the Area of Potential Effect will be monitored by a qualified heritage specialist during 

and/or after actual ground disturbance.

SCENERY: Unit is in Moderate SIO; however, unit is set back at least 250 ft from the Thorne Bay-Control Lake 

highway and has vegetative and topographic screening. Thinning is not expected to be noticeable and VAC is 

moderate to high so openings can be as large as 15 acres or more. No concerns.

RECREATION: No concerns.

SOILS/WETLANDS: Slopes average less than 25% throughout the unit based on review of digital elevation model. 

There are approximately 3 acres (71% of the unit) mapped as forested wetland in the southeastern portion of the unit 

(BMP 12.5). The soils and wetlands are suitable for shovel yarding. Shovel yarding should follow BMPs 12.5, 13.2 

and 13.9. Specifically, the shovel operator should avoid the small non-forested areas of the unit to prevent rutting. 

Use care when approving shovel yarding on slopes over 25% gradient. Avoid track slippage and rutting.

Existing detrimental soil disturbance is expected in second growth units. Additional analysis is ongoing to ensure 

that no activity areas exceed the Region 10 soil productivity standard.

WILDLIFE: Unit is located in Rio Beaver drainage, one of the north-south linkages between the Honker large OGR 

and the Karta Wilderness. Commercial thinning is expected to enhance wildlife habitat by improving travel corridor 

and forage availability and removing the stand from the stem exclusion phase for the duration of rotation (until it is 

harvested again).

Appendix 1 - Unit Cards - 567 Appendix 1
3012100

3012000

929

4

5

3

1968

1968

1987

2005

1966

1966

2010

2005

2005

500

502

A

A

B

B

C

C

D

D

E

E

F

F

G

G

H

H

I

I

J

J

10 10

9 9

8 8

7 7

6 6

5 5

4 4

3 3

2 2

1 1

Unit Number 500 ROD VCU: 

0 500

Feet

Past Harvest

(Year Origin)

Unsuitable Soils

Riparian Management

Area

Slope > 72%

Other Ownership

Old Growth Habitat LUD

Recreation River LUD

Scenic River LUD

State Highway

National Forest System Road - Open

National Forest System Road - Stored

Non-National Forest 

System Road

Proposed Reconstructed Road

Proposed System Road 

(reopened Decommissioned)

Proposed Temporary Road 

(reopened Decommissioned)

Proposed System Road

Proposed Temporary

Road

Young Growth

Systematic Strip Thin

Uniform Crown Thin

Old Growth

Helicopter

Shovel or Cable

Partial Cut

Class 1 Stream

Class 2 Stream

Class 3 Stream

Class 4 Stream

Lake

100’ Contour

Eagle Nest Buffer

Legacy

Visual Buffer

Deferred (within

Original Unit

Reconnaissance

Area)

597.2

R:\projects_2010\BigThorneEIS\maps\Unitcards\ROD_YG.mxd 3 June 2013

RR

SR

Young Growth

568 - Big Thorne Project Record of Decision Appendix 1
Unit 

Number: 501

Alternatives: ROD Total Unit 16.7

Acres: 

Prescription: Crown Thinning

VCU 

Number: 597.2 

Yarding System:

Shovel

Net Harvest

Volume 98

(MBF): 

LUD: Modified Landscape, 

Timber Production

Summary of Concerns, Responses, BMPs and Mitigation

SILVICULTURE: Existing Conditions: This unit lies entirely within Stand #5972100502. The stand origination date 

is 1967. Approximately 62% of the stand area was pre-commercially thinned in 1982. The site potential in this area 

ranges from medium to high. The unit is in a successional stage of stem exclusion. This unit lies in the Deer Winter 

Range landscape zone.

Silvicultural Objective/Desired Condition (Deer Winter Range):

The management goal of young-growth treatment in this landscape zone is to improve growth, productivity, and 

forest health, while managing for a sustained yield, even flow of an industrial wood supply and improving deer 

winter range conditions in treated stands for the remainder of the rotation.

Silvicultural Prescription: Intermediate Treatment Crown Thinning

Apply crown thinning at approximately stand age 50. Crown thinning should retain at least 50% of the existing 

pretreatment stand basal area at that time. Retain trees in a generally uniform pattern. Skips or thickets may be left 

where logging system difficulties occur, in portions of settings where windthrow risk is expected to be unacceptable 

after thinning like along exposed stand edges or knobs, and in any areas where wildlife dens or nests are found. 

Gaps may occur where cable corridors come together near landings or other areas where extra room is needed to 

facilitate yarding or meet specific wildlife objectives.

This treatment is being proposed based on the analysis of current data for this stand projected forward in time using 

growth modeling. Marking guidelines covering the specifics of the treatment, such as species to favor for retention 

will be developed at the time of treatment.

TIMBER/YARDING: Shovel yarding to the proposed temporary road.

ENGINEERING/ROADS: Unit is accessed by a proposed temporary road of 1,600 feet, constructed over 

decommissioned road bed.

BOTANY: No Concerns

INVASIVE SPECIES: No Concerns

FISHERIES: Streams are tributaries to Rio Beaver Creek. Stream 1 is Rio Beaver.

Stream#: 1 Class: I Flagging: B/W C-Type: MCM, FPM Concerns: none

Buffer (RMA): Class I for MCM greater of 100 feet or to the top of the side-slope break. Class I for FPM greater of 

130 feet, flood plain, riparian vegetation or soils, or riparian associated wetland fens.

Alternatives: ROD Buffer (RAW): no review needed Protection: Category A

Stream#: 1.1L Class: I Flagging: B/W C-Type: FPO Concerns: none

Buffer (RMA): Class I for FPO greater of 130 feet, flood plain, riparian vegetation or soils, or riparian associated 

wetland fens.

Alternatives: ROD Buffer (RAW): no review needed Protection: Category A

Stream#: 1.2L Class: I Flagging: B/W C-Type: PAB Concerns: none

Buffer (RMA): Class I for PAB greater of 100 feet, flood plain, riparian vegetation or soils, or riparian associated 

wetland fens.

Alternatives: ROD Buffer (RAW): no review needed Protection: Category A

Stream#: 1.4L Class: I Flagging: B/W C-Type: FPM, MMS Concerns: none

Buffer (RMA): Class I greater of 130 feet (for FPM) or 120 feet (for MMS), flood plain, riparian vegetation or soils, 

or riparian associated wetland fens.

Alternatives: ROD Buffer (RAW): no review needed Protection: Category A

All other streams in unit: Class IV Flagging: G/W C-Type: HC and MM 

Concerns: none Buffer (RMA): none Protection: Category C

Appendix 1 - Unit Cards - 569 Appendix 1
Temporary road (reopened decommissioned) for Unit 501: No known stream crossings. If any stream crossings are 

found, crossings structures and locations will be approved by USFS, in consultation with fisheries biologist or 

hydrologist, prior to construction (BMP 14.17). During construction of temporary roads implement BMPs 12.17, 

13.10, 13.11, 13.16, 14.3, and14.5.

GEOLOGY/KARST: No Concerns

HERITAGE RESOURCES: This unit was investigated per the third amended interagency Programmatic Agreement 

(PA) for historic properties. As specified by the PA, any potential adverse effect on historic properties (if any) was 

mitigated and portions of the Area of Potential Effect will be monitored by a qualified heritage specialist during 

and/or after actual ground disturbance.

SCENERY: One-third of unit is in Moderate SIO and two-thirds is in Very Low SIO; however, unit is set back at 

least 350 ft from the Thorne Bay-Control Lake highway and has vegetative and topographic screening. Thinning is 

not expected to be noticeable and VAC is moderate to high so openings can be as large as 15 acres or more. No 

concerns.

RECREATION: No concerns.

SOILS/WETLANDS: Slopes average less than 25% throughout the unit based on review of digital elevation model. 

There is approximately 3/4 acre of forested wetland mapped near the southern unit boundary (R10 BMP 12.5 and 

National Core BMPs AqEco-2 and AqEco-4). The soils and wetlands are suitable for shovel yarding. Follow shovel 

yarding guidelines outlined in the introductions to unit cards (R10 BMP 13.9 and National Core BMPs Plan-2, Veg2, and Veg-4). Partial harvest with ground-based removal will meet soil quality standards.

WILDLIFE: Unit is located in Rio Beaver drainage, one of the north-south linkages between the Honker large OGR 

and the Karta Wilderness. Commercial thinning is expected to enhance wildlife habitat by improving travel corridor 

and forage availability and removing the stand from the stem exclusion phase for the duration of rotation (until it is 

harvested again).

570 - Big Thorne Project Record of Decision Appendix 1
3011000

3012000

3012100

929

4

1.4L

X

1.1L

1.2L

1

3

1

2005

1967

2000

1987

1966

1966

2006

2008

2006

2006

2006

2006

501

502

A

A

B

B

C

C

D

D

E

E

F

F

G

G

H

H

I

I

J

J

10 10

9 9

8 8

7 7

6 6

5 5

4 4

3 3

2 2

1 1

Unit Number 501 ROD VCU: 

0 500

Feet

Past Harvest

(Year Origin)

Unsuitable Soils

Riparian Management

Area

Slope > 72%

Other Ownership

Old Growth Habitat LUD

Recreation River LUD

Scenic River LUD

State Highway

National Forest System Road - Open

National Forest System Road - Stored

Non-National Forest 

System Road

Proposed Reconstructed Road

Proposed System Road 

(reopened Decommissioned)

Proposed Temporary Road 

(reopened Decommissioned)

Proposed System Road

Proposed Temporary

Road

Young Growth

Systematic Strip Thin

Uniform Crown Thin

Old Growth

Helicopter

Shovel or Cable

Partial Cut

Class 1 Stream

Class 2 Stream

Class 3 Stream

Class 4 Stream

Lake

100’ Contour

Eagle Nest Buffer

Legacy

Visual Buffer

Deferred (within

Original Unit

Reconnaissance

Area)

597.2

R:\projects_2010\BigThorneEIS\maps\Unitcards\ROD_YG.mxd 3 June 2013

RR

SR

Young Growth

Appendix 1 - Unit Cards - 571 Appendix 1
Unit 

Number: 502

Alternatives: ROD Total Unit 36.7

Acres: 

Prescription: Systematic and

Crown Thinning

VCU 

Number: 597.2 

Yarding System:

Cable, Shovel

Net Harvest

Volume 247

(MBF): 

LUD: Modified Landscape, 

Timber Production

Summary of Concerns, Responses, BMPs and Mitigation

SILVICULTURE: Existing Conditions: The majority of this unit lies within Stand #5972200502. The stand 

origination date is 1966. Approximately 79% of the stand area was pre-commercially thinned in 1982. 

Approximately 7.7 acres of the unit lies within Stand #5972100503. This stand was entirely pre-commercially 

thinned in 1982. The site potential in this unit appears to range from medium to high. The unit is in a successional 

stage of stem exclusions. This unit lies in the Deer Winter Range landscape zone.

Silvicultural Objective/Desired Condition (Deer Winter Range):

The management goal of young-growth treatment in this landscape zone is to improve growth, productivity, and 

forest health, while managing for a sustained yield, even flow of an industrial wood supply and improving deer 

winter range conditions in treated stands for the remainder of the rotation.

Silvicultural Prescription: Intermediate Treatment Crown Thinning

Apply crown thinning at approximately stand age 50. Crown thinning should retain at least 50% of the existing 

pretreatment stand basal area at that time. Retain trees in a generally uniform pattern. Skips or thickets may be left 

where logging system difficulties occur, in portions of settings where windthrow risk is expected to be unacceptable 

after thinning like along exposed stand edges or knobs, and in any areas where wildlife dens or nests are found. 

Gaps may occur where cable corridors come together near landings or other areas where extra room is needed to 

facilitate yarding or meet specific wildlife objectives.

Silvicultural Prescription: Systematic Thinning

Apply systematic thinning strips in portions of the unit unsuitable for uniform thinning. Systematic thinning should 

be applied primarily in downhill settings where full suspension cannot be achieved or other areas where uniform 

thinning will result in unacceptable levels of residual tree damage or otherwise is operationally infeasible. 

Systematic thinning should remove all trees within corridors 20 to 60 feet wide depending on operational feasibility, 

visual concerns and /or windthrow potential. Maintain a 60-120 foot distance between cut corridors resulting in at 

least a 50% basal area retention. Where visuals are of concern, cut corridors should be kept to approximately 20 feet 

in width pending scenery direction. Although parallel strips are likely to be most common, there are options for fan 

shapes, depending on landing/road locations.

The treatments being proposed are based on the analysis of current data for this stand projected forward in time 

using growth modeling. Marking guidelines covering the specifics of the treatment, such as species to favor for 

retention will be developed at the time of treatment.

TIMBER/YARDING: Shovel settings yard to the proposed temporary road and NFS roads 3012000 and 3012100. 

Cable settings yard to the proposed temporary road and NFS road 3012000.

ENGINEERING/ROADS: Unit is accessed by a proposed temporary road of 2,500 feet, constructed over 

decommissioned road bed.

BOTANY: Portions of two lesser round-leaved orchid populations are within the indirect effects area for this 

proposed harvest unit.

INVASIVE SPECIES: An infestation of orange hawkweed is known along the existing road, adjacent to the unit. 

Monitoring is recommended to ensure that the infestation does not spread as a result of project activities.

FISHERIES: Streams are tributaries to Rio Beaver. 

Stream#: 1.4L/1 Class: I Flagging: B/W C-Type: MMS Concerns: none

Buffer (RMA): Class I for MMS greater of 120 feet, flood plain, riparian vegetation or soils, or riparian associated 

wetland fens.

Alternatives: ROD Buffer (RAW): no review needed Protection: Category A

Stream#: 3 Class: I Flagging: B/W C-Type: MMS, MMO Concerns: none

Buffer (RMA): Class I for MMS and MMO greater of 120 feet, flood plain, riparian vegetation or soils, or riparian 

associated wetland fens.

572 - Big Thorne Project Record of Decision Appendix 1
Alternatives: ROD Buffer (RAW): no review needed Protection: Category A

Stream#: 4 Class: I, III, IV Flagging: B/W, O/W, G/W C-Type: MMO, HCL, HCO Concerns: none

Buffer (RMA): Class I for MMS and MMO greater of 120 feet, flood plain, riparian vegetation or soils, or riparian 

associated wetland fens. Class III for HCL to the top of the side-slope break.

Alternatives: ROD Buffer (RAW): no review needed Protection: Category A, B and C

Stream#: 5 Class: I, IV Flagging: B/W, G/W C-Type: MMS, HCO Concerns: none

Buffer (RMA): Class I for MMS greater of 120 feet, flood plain, riparian vegetation or soils, or riparian associated 

wetland fens.

Alternatives: ROD Buffer (RAW): no review needed Protection: Category A and C

GEOLOGY/KARST: No Concerns

HERITAGE RESOURCES: This unit was investigated per the third amended interagency Programmatic Agreement 

(PA) for historic properties. As specified by the PA, any potential adverse effect on historic properties (if any) was 

mitigated and portions of the Area of Potential Effect will be monitored by a qualified heritage specialist during 

and/or after actual ground disturbance.

SCENERY: Unit is made up of 35 acres of Low SIO and 9 acres of Very Low. Unit is generally 1/2 mile or more 

from the Thorne Bay- Control Lake highway. Some areas of thinning can likely be seen, but are unlikely to be very 

noticeable. VAC is moderate to high so openings can be as large as 40 acres or more. No concerns.

RECREATION: No concerns.

SOILS/WETLANDS: Slopes average less than 55% throughout the unit based on review of digital elevation model. 

The western third of the unit is below 35% slope. Two small avalanches occur near the center of the unit. There are 

about 1/2 acre of emergent sedge/forested wetland complex and 2 acres of forested wetland mapped near the unit 

edges (R10 BMP 12.5 and National Core BMPs AqEco-2 and AqEco-4). The soils and wetlands are suitable for a 

minimum of partial suspension cable yarding or shovel yarding and should follow R10 BMPs 12.5, 13.2 and 13.9

and National Core BMPs Plan-2, Veg-2, Veg-4, Veg-5, and Veg-6. Follow shovel yarding guidelines outlined in the 

introductions to unit cards (R10 BMP 13.9 and National Core Veg-4). Partial harvest with ground-based removal 

and partial suspension thinning will meet soil quality standards.

WILDLIFE: Unit is located in Rio Beaver drainage, one of the north-south linkages between the Honker large OGR 

and the Karta Wilderness. Commercial thinning is expected to enhance wildlife habitat by improving travel corridor 

and forage availability and removing the stand from the stem exclusion phase for the duration of rotation (until it is 

harvested again).

Appendix 1 - Unit Cards - 573 Appendix 1
3012105

3012000

3012140

3012120

3012100

1.4L

5

4

3

1

2005

1968

1967

1968

2000

1987

1966

1966

1966

1966

2004

2010

2005

500

501

502

A

A

B

B

C

C

D

D

E

E

F

F

G

G

H

H

I

I

J

J

10 10

9 9

8 8

7 7

6 6

5 5

4 4

3 3

2 2

1 1

Unit Number 502 ROD VCU: 

0 500

Feet

Past Harvest

(Year Origin)

Unsuitable Soils

Riparian Management

Area

Slope > 72%

Other Ownership

Old Growth Habitat LUD

Recreation River LUD

Scenic River LUD

State Highway

National Forest System Road - Open

National Forest System Road - Stored

Non-National Forest 

System Road

Proposed Reconstructed Road

Proposed System Road 

(reopened Decommissioned)

Proposed Temporary Road 

(reopened Decommissioned)

Proposed System Road

Proposed Temporary

Road

Young Growth

Systematic Strip Thin

Uniform Crown Thin

Old Growth

Helicopter

Shovel or Cable

Partial Cut

Class 1 Stream

Class 2 Stream

Class 3 Stream

Class 4 Stream

Lake

100’ Contour

Eagle Nest Buffer

Legacy

Visual Buffer

Deferred (within

Original Unit

Reconnaissance

Area)

597.2

R:\projects_2010\BigThorneEIS\maps\Unitcards\ROD_YG.mxd 3 June 2013

RR

SR

Young Growth

574 - Big Thorne Project Record of Decision Appendix 1
Unit 

Number: 503

Alternatives: ROD Total Unit 21.8

Acres: 

Prescription: Systematic and 

Crown Thinning

VCU 

Number: 597.2 

Yarding System:

Cable

Net Harvest

Volume 163

(MBF): 

LUD: Timber Production

Summary of Concerns, Responses, BMPs and Mitigation

SILVICULTURE: Existing Conditions: This unit lies entirely within Stand #5972100504. The stand origination date 

is 1967. Approximately 82% of the stand area has been pre-commercially thinned. The site potential in this area 

appears to range from medium to high. The unit is in a successional stage of stem exclusion. This unit lies within the 

Deer Winter Range landscape zone.

Silvicultural Objective/Desired Condition (Deer Winter Range):

The management goal of young-growth treatment in this landscape zone is to improve growth, productivity, and 

forest health, while managing for a sustained yield, even flow of an industrial wood supply and improving deer 

winter range conditions in treated stands for the remainder of the rotation.

Silvicultural Prescription: Intermediate Treatment Crown Thinning

Apply crown thinning at approximately stand age 50. Crown thinning should retain at least 50% of the existing 

pretreatment stand basal area at that time. Retain trees in a generally uniform pattern. Skips or thickets may be left 

where logging system difficulties occur, in portions of settings where windthrow risk is expected to be unacceptable 

after thinning like along exposed stand edges or knobs, and in any areas where wildlife dens or nests are found. 

Gaps may occur where cable corridors come together near landings or other areas where extra room is needed to 

facilitate yarding or meet specific wildlife objectives.

Silvicultural Prescription: Systematic Thinning

Apply systematic thinning strips in portions of the unit unsuitable for uniform thinning. Systematic thinning should 

be applied primarily in downhill settings where full suspension cannot be achieved or other areas where uniform 

thinning will result in unacceptable levels of residual tree damage or otherwise is operationally infeasible. 

Systematic thinning should remove all trees within corridors 20 to 60 feet wide depending on operational feasibility, 

visual concerns and /or windthrow potential. Maintain a 60-120 foot distance between cut corridors resulting in at 

least 50% basal area retention. Where visuals are of concern, cut corridors should be kept to approximately 20 feet 

in width pending scenery direction. Although parallel strips are likely to be most common, there are options for fan 

shapes, depending on landing/road locations.

The treatment being proposed is based on the analysis of current data for this stand projected forward in time using 

growth modeling. Marking guidelines covering the specifics of the treatment, such as species to favor for retention 

will be developed at the time of treatment.

TIMBER/YARDING: Cable yarding to the proposed temporary road and NFS road 3012000.

ENGINEERING/ROADS: Unit is accessed by a proposed temporary road of 700 feet, constructed over 

decommissioned road bed.

BOTANY: No Concerns

INVASIVE SPECIES: No Concerns

FISHERIES: Streams are tributaries to Rio Beaver Creek. 

Stream#: 1 Class: I Flagging: B/W C-Type: MMS, FPS, HCL Concerns: none

Buffer (RMA): Class I greater of 120 feet (for MMS) or 130 feet (for FPS), flood plain, riparian vegetation or soils, 

or riparian associated wetland fens. Class I for HCL greater of 100 feet or to the top of the side-slope break.

Alternatives: ROD Buffer (RAW): no review needed Protection: Category A

Temporary road (reopened decommissioned) for Unit 503: No known stream crossings. If any stream crossings are 

found, crossings structures and locations will be approved by USFS, in consultation with fisheries biologist or 

hydrologist, prior to construction (BMP 14.17). During construction of temporary roads implement BMPs 12.17, 

13.10, 13.11, 13.16, 14.3, and 14.5.

GEOLOGY/KARST: No Concerns

HERITAGE RESOURCES: This unit was investigated per the third amended interagency Programmatic Agreement 

(PA) for historic properties. As specified by the PA, any potential adverse effect on historic properties (if any) was 

Appendix 1 - Unit Cards - 575 Appendix 1
mitigated and portions of the Area of Potential Effect will be monitored by a qualified heritage specialist during 

and/or after actual ground disturbance.

SCENERY: No concerns.

RECREATION: No concerns.

SOILS/WETLANDS: Slopes in the unit are less than about 50%, but the majority of the unit is below 35% slope. 

There are approximately 3 acres of forested wetland mapped adjacent to the southeastern unit edge R10 BMP 12.5 

and National Core BMPs AqEco-2 and AqEco-4). A minimum of partial suspension will meet soil quality standards 

and wetland resource concerns (follow BMPs 12.5, 13.2 and 13.9).

WILDLIFE: Unit is located in Rio Beaver drainage, one of the north-south linkages between the Honker large OGR 

and the Karta Wilderness. Commercial thinning is expected to enhance wildlife habitat by improving travel corridor 

and forage availability and removing the stand from the stem exclusion phase for the duration of rotation (until it is 

harvested again).

576 - Big Thorne Project Record of Decision Appendix 1
3012000

3012140

3012140

3012145

1.1R.2R

1

1.4R

1.1R

1.3R

1.5R

1.1R

1.2R.1R

7R

R.1R

1.5R

3R.1R

1 2R.1R.1R

1.1R

1.1R.4R

1.1R.3R

1

1 1. R 1. R

1.1R.5R

1.2R

1.1R.1R.1L

1.1R.6R

2004

1992

1966

1966

1967

2006

2006

2004

503

504

505

34

A

A

B

B

C

C

D

D

E

E

F

F

G

G

H

H

I

I

J

J

10 10

9 9

8 8

7 7

6 6

5 5

4 4

3 3

2 2

1 1

Unit Number 503 ROD VCU: 

0 500

Feet

Past Harvest

(Year Origin)

Unsuitable Soils

Riparian Management

Area

Slope > 72%

Other Ownership

Old Growth Habitat LUD

Recreation River LUD

Scenic River LUD

State Highway

National Forest System Road - Open

National Forest System Road - Stored

Non-National Forest 

System Road

Proposed Reconstructed Road

Proposed System Road 

(reopened Decommissioned)

Proposed Temporary Road 

(reopened Decommissioned)

Proposed System Road

Proposed Temporary

Road

Young Growth

Systematic Strip Thin

Uniform Crown Thin

Old Growth

Helicopter

Shovel or Cable

Partial Cut

Class 1 Stream

Class 2 Stream

Class 3 Stream

Class 4 Stream

Lake

100’ Contour

Eagle Nest Buffer

Legacy

Visual Buffer

Deferred (within

Original Unit

Reconnaissance

Area)

597.2

R:\projects_2010\BigThorneEIS\maps\Unitcards\ROD_YG.mxd 3 June 2013

RR

SR

Young Growth

Appendix 1 - Unit Cards - 577 Appendix 1
Unit 

Number: 504

Alternatives: ROD Total Unit 24.1

Acres: 

Prescription: Systematic and

Crown Thinning

VCU 

Number: 597.2 

Yarding System:

Cable, Shovel

Net Harvest

Volume 165

(MBF): 

LUD: Timber Production

Summary of Concerns, Responses, BMPs and Mitigation

SILVICULTURE: Existing Conditions: This unit lies primarily within Stand #5972100093. The stand origination 

date is 1966. Approximately 98% of the stand area has been pre-commercially thinned. Approximately 3.7 acres of 

the unit lies within Stand #5972100505. This stand has had approximately 90% of the stand area pre-commercially 

thinned. The site potential in this area appears to range from medium to high. The unit is in a successional stage of 

stem exclusion. This unit lies within the Deer Winter Range landscape zone.

Silvicultural Objective/Desired Condition (Deer Winter Range):

The management goal of young-growth treatment in this landscape zone is to improve growth, productivity, and 

forest health, while managing for a sustained yield, even flow of an industrial wood supply and improving deer 

winter range conditions in treated stands for the remainder of the rotation.

Silvicultural Prescription: Intermediate Treatment Crown Thinning

Apply crown thinning at approximately stand age 50. Crown thinning should retain at least 50% of the existing 

pretreatment stand basal area at that time. Retain trees in a generally uniform pattern. Skips or thickets may be left 

where logging system difficulties occur, in portions of settings where windthrow risk is expected to be unacceptable 

after thinning like along exposed stand edges or knobs, and in any areas where wildlife dens or nests are found. 

Gaps may occur where cable corridors come together near landings or other areas where extra room is needed to 

facilitate yarding or meet specific wildlife objectives.

Silvicultural Prescription: Systematic Thinning

Apply systematic thinning strips in portions of the unit unsuitable for uniform thinning. Systematic thinning should 

be applied primarily in downhill settings where full suspension cannot be achieved or other areas where uniform 

thinning will result in unacceptable levels of residual tree damage or otherwise is operationally infeasible. 

Systematic thinning should remove all trees within corridors 20 to 60 feet wide depending on operational feasibility, 

visual concerns and /or windthrow potential. Maintain a 60-120 foot distance between cut corridors resulting in at 

least a 50% basal area retention. Where visuals are of concern, cut corridors should be kept to approximately 20 feet 

in width pending scenery direction. Although parallel strips are likely to be most common, there are options for fan 

shapes, depending on landing/road locations.

The treatments being proposed are based on the analysis of current data for this stand projected forward in time 

using growth modeling. Marking guidelines covering the specifics of the treatment, such as species to favor for 

retention will be developed at the time of treatment.

TIMBER/YARDING: Shovel settings yard to NFS road 3012000. Cable settings yard to NFS roads 3012000 and 

3012180

ENGINEERING/ROADS: No proposed road construction or reconstruction.

BOTANY: No Concerns

INVASIVE SPECIES: An infestation of perennial sowthistle has been found and treated along the NFS road 

3012000. Follow-up monitoring is recommended, as well as future treatments if necessary. Several scattered 

infestations of orange hawkweed are also known along the existing road adjacent to the unit. Monitoring of these 

infestations is recommended to ensure that they do not spread as a result of the project activities. 

FISHERIES: Streams are tributaries to Rio Beaver Creek. Stream 1 is Rio Beaver.

Stream#: 1 Class: I Flagging: B/W C-Type: FPM

Concerns: yarding through RMA. 

Buffer (RMA): Class I for FPM greater of 130 feet, flood plain, riparian vegetation or soils, or riparian associated 

wetland fens.

Alternatives: ROD Buffer (RAW): no review needed Protection: Category A

Stream#: 1.2L Class: I, IV Flagging: B/W, G/W C-Type: PAS, HCO Concerns: none

Buffer (RMA): Class I for PAS greater of 100 feet, flood plain, riparian vegetation or soils, or riparian associated 

578 - Big Thorne Project Record of Decision Appendix 1
wetland fens. Class I for HCO greater of 100 feet or to the top of the side-slope break. 

Alternatives: ROD Buffer (RAW): no review needed Protection: Category A and C 

Stream#: 1.3L Class: I, II Flagging: B/W C-Type: AFH, HCM Concerns: none

Buffer (RMA): Class I for AFH greater of 140 feet or active portion of the alluvial fan. Class I and II for HCM 

greater of 100 feet or to the top of the side-slope break. 

Alternatives: 3, 4 and 5 Buffer (RAW): no review needed Protection: Category A

GEOLOGY/KARST: No Concerns

HERITAGE RESOURCES: This unit was investigated per the third amended interagency Programmatic Agreement 

(PA) for historic properties. As specified by the PA, any potential adverse effect on historic properties (if any) was 

mitigated and portions of the Area of Potential Effect will be monitored by a qualified heritage specialist during 

and/or after actual ground disturbance.

SCENERY: No concerns.

RECREATION: No concerns.

SOILS/WETLANDS: Nearly 80% of the unit is below 50% slope. There are no slopes greater than 72% mapped in 

the unit. A historic avalanche (pre-1971) occurs near the southeast boundary. There is about 1/4 acre of forested 

wetland mapped near the northern tip of the unit (R10 BMP 12.5 and National Core BMPs AqEco-2 and AqEco-4). 

The soils and wetlands are suitable for a minimum of partial suspension cable yarding or shovel yarding and should 

follow R10 BMPs 12.5, 13.2 and 13.9 and National Core BMPs Plan-2, Veg-2, Veg-4, Veg-5, and Veg-6. Follow 

shovel yarding guidelines outlined in the introductions to unit cards (R10 BMP 13.9 and National Core Veg-4). 

Partial harvest with ground-based removal and partial suspension thinning will meet soil quality standards.

WILDLIFE: Unit is located in Rio Beaver drainage, one of the north-south linkages between the Honker large OGR 

and the Karta Wilderness. Commercial thinning is expected to enhance wildlife habitat by improving travel corridor 

and forage availability and removing the stand from the stem exclusion phase for the duration of rotation (until it is 

harvested again).

Appendix 1 - Unit Cards - 579 Appendix 1
3012180

3012145

3012000

3012200

1.4R.2 L

1.3L

1.5R

1.4R

1.4R.1L

1.3R.1L

1

1.4R.3L

1.2 L

1.5R.1R

1.5R

1.3L

1.7

1

R

.1R

1.3R.2L

1.4R

1.3L

1.3R

1992

1967

1966

1966

503

504

504

504

505

33

34

A

A

B

B

C

C

D

D

E

E

F

F

G

G

H

H

I

I

J

J

10 10

9 9

8 8

7 7

6 6

5 5

4 4

3 3

2 2

1 1

Unit Number 504 ROD VCU: 

0 500

Feet

Past Harvest

(Year Origin)

Unsuitable Soils

Riparian Management

Area

Slope > 72%

Other Ownership

Old Growth Habitat LUD

Recreation River LUD

Scenic River LUD

State Highway

National Forest System Road - Open

National Forest System Road - Stored

Non-National Forest 

System Road

Proposed Reconstructed Road

Proposed System Road 

(reopened Decommissioned)

Proposed Temporary Road 

(reopened Decommissioned)

Proposed System Road

Proposed Temporary

Road

Young Growth

Systematic Strip Thin

Uniform Crown Thin

Old Growth

Helicopter

Shovel or Cable

Partial Cut

Class 1 Stream

Class 2 Stream

Class 3 Stream

Class 4 Stream

Lake

100’ Contour

Eagle Nest Buffer

Legacy

Visual Buffer

Deferred (within

Original Unit

Reconnaissance

Area)

597.2

R:\projects_2010\BigThorneEIS\maps\Unitcards\ROD_YG.mxd 3 June 2013

RR

SR

Young Growth

580 - Big Thorne Project Record of Decision Appendix 1
Unit 

Number: 505

Alternatives: ROD Total Unit 

Acres: 26.6

Prescription: Systematic and

Uniform Thinning

VCU 

Number: 597.2 

Yarding System:

Cable, Shovel

Net Harvest

Volume 

(MBF): 196

LUD: Modified Landscape, 

Timber Production

Summary of Concerns, Responses, BMPs and Mitigation

SILVICULTURE: Existing Conditions: This unit lies entirely within Stand #5972100505. The stand origination date 

is 1966. Approximately 90% of the stand area has been pre-commercially thinned. The site potential in this area 

appears to range from medium to high. The unit is in a successional stage of stem exclusion. This unit lies within the 

Deer Winter Range landscape zone.

Silvicultural Objective/Desired Condition (Deer Winter Range):

The management goal of young-growth treatment in this landscape zone is to improve growth, productivity, and 

forest health, while managing for a sustained yield, even flow of an industrial wood supply and improving deer 

winter range conditions in treated stands for the remainder of the rotation.

Silvicultural Prescription: Intermediate Treatment Crown Thinning

Apply crown thinning at approximately stand age 50. Crown thinning should retain at least 50% of the existing 

pretreatment stand basal area at that time. Retain trees in a generally uniform pattern. Skips or thickets may be left 

where logging system difficulties occur, in portions of settings where windthrow risk is expected to be unacceptable 

after thinning like along exposed stand edges or knobs, and in any areas where wildlife dens or nests are found. 

Gaps may occur where cable corridors come together near landings or other areas where extra room is needed to 

facilitate yarding or meet specific wildlife objectives.

Silvicultural Prescription: Systematic Thinning

Apply systematic thinning strips in portions of the unit unsuitable for uniform thinning. Systematic thinning should 

be applied primarily in downhill settings where full suspension cannot be achieved or other areas where uniform 

thinning will result in unacceptable levels of residual tree damage or otherwise is operationally infeasible. 

Systematic thinning should remove all trees within corridors 20 to 60 feet wide depending on operational feasibility, 

visual concerns and /or windthrow potential. Maintain a 60-120 foot distance between cut corridors resulting in at 

least a 50% basal area retention. Where visuals are of concern, cut corridors should be kept to approximately 20 feet 

in width pending scenery direction. Although parallel strips are likely to be most common, there are options for fan 

shapes, depending on landing/road locations.

The treatments being proposed are based on the analysis of current data for this stand projected forward in time 

using growth modeling. Marking guidelines covering the specifics of the treatment, such as species to favor for 

retention will be developed at the time of treatment.

TIMBER/YARDING: Shovel and cable yarding to NFS road 3012200. 

ENGINEERING/ROADS: Unit is accessed by reconstruction of NFS road 3012200, totaling 4,400 feet. See road 

card for information on NFS road.

BOTANY: No Concerns

INVASIVE SPECIES: No Concerns

FISHERIES: Streams are tributaries to Rio Beaver Creek. Stream 1 is Rio Beaver.

Stream#: 1 Class: I Flagging: B/W C-Type: FPM Concerns: none

Buffer (RMA): Class I for FPM greater of 130 feet, flood plain, riparian vegetation or soils, or riparian associated 

wetland fens. 

Alternatives: ROD Buffer (RAW): no review needed Protection: Category A

Stream#: 1.5R Class: II, IV Flagging: B/W, G/W C-Type: HCO Concerns: none

Buffer (RMA): Class II for HCO greater of 100 feet or to the top of the side-slope break.

Alternatives: ROD Buffer (RAW): no review needed Protection: Category A and C

All other streams in unit: Class IV Flagging: G/W C-Type: HC and MM 

Concerns: none Buffer (RMA): none Protection: Category C

GEOLOGY/KARST: No Concerns

Appendix 1 - Unit Cards - 581 Appendix 1
HERITAGE RESOURCES: This unit was investigated per the third amended interagency Programmatic Agreement 

(PA) for historic properties. As specified by the PA, any potential adverse effect on historic properties (if any) was 

mitigated and portions of the Area of Potential Effect will be monitored by a qualified heritage specialist during 

and/or after actual ground disturbance.

SCENERY: No concerns.

RECREATION: No concerns.

SOILS/WETLANDS: Slopes range from about 15% to greater than 72%, based on DEMs. All slopes greater than 

72% will be verified prior to implementation. There are approximately 5 acres of forested wetland and 2 acres of 

moss muskeg and 3 acres of tall sedge fen near the eastern boundary of the unit (R10 BMP 12.5 and National Core 

BMPs AqEco-2 and AqEco-4). The soils and wetlands are suitable for a minimum of partial suspension cable 

yarding or shovel yarding and should follow R10 BMPs 12.5, 13.2 and 13.9 and National Core BMPs Plan-2, Veg2, Veg-4, Veg-5, and Veg-6. Follow shovel yarding guidelines outlined in the introductions to unit cards (R10 BMP 

13.9 and National Core Veg-4). Partial harvest with ground-based removal and partial suspension thinning will meet 

soil quality standards.

WILDLIFE: Unit is located in Rio Beaver drainage, one of the north-south linkages between the Honker large OGR 

and the Karta Wilderness. Commercial thinning is expected to enhance wildlife habitat by improving forage 

availability and removing the stand from the stem exclusion phase for the duration of rotation (until it is harvested 

again).

582 - Big Thorne Project Record of Decision Appendix 1
3012180

3012000

3012200

3012210

1. 4R.1R

1.4R.1L

1

1.4R.3L.1L

1.4R.4L

1.4R.3L

4R.1R

1.2 L

1.5R.1R

1.5R

1.3L

1.7

1

R

.1R

1

1.4 R

1.3L

1.5 R

1.3L

1.4R

1.4R .2L

1966

1966

1966

504

504

504

505

506

33

34

A

A

B

B

C

C

D

D

E

E

F

F

G

G

H

H

I

I

J

J

10 10

9 9

8 8

7 7

6 6

5 5

4 4

3 3

2 2

1 1

Unit Number 505 ROD VCU: 

0 500

Feet

Past Harvest

(Year Origin)

Unsuitable Soils

Riparian Management

Area

Slope > 72%

Other Ownership

Old Growth Habitat LUD

Recreation River LUD

Scenic River LUD

State Highway

National Forest System Road - Open

National Forest System Road - Stored

Non-National Forest 

System Road

Proposed Reconstructed Road

Proposed System Road 

(reopened Decommissioned)

Proposed Temporary Road 

(reopened Decommissioned)

Proposed System Road

Proposed Temporary

Road

Young Growth

Systematic Strip Thin

Uniform Crown Thin

Old Growth

Helicopter

Shovel or Cable

Partial Cut

Class 1 Stream

Class 2 Stream

Class 3 Stream

Class 4 Stream

Lake

100’ Contour

Eagle Nest Buffer

Legacy

Visual Buffer

Deferred (within

Original Unit

Reconnaissance

Area)

597.2

R:\projects_2010\BigThorneEIS\maps\Unitcards\ROD_YG.mxd 3 June 2013

RR

SR

Young Growth

Appendix 1 - Unit Cards - 583 Appendix 1
Unit 

Number: 506

Alternatives: ROD Total Unit 28.0

Acres: 

Prescription: Systematic and

CrownThinning

VCU 

Number: 597.2 

Yarding System:

Cable, Shovel

Net Harvest

Volume 214

(MBF): 

LUD: Timber Production

Summary of Concerns, Responses, BMPs and Mitigation

SILVICULTURE: Existing Conditions: This unit lies entirely within Stand #5972100505. The stand origination date 

is 1966. Approximately 90% of the stand area has been pre-commercially thinned. The site potential in this area 

appears to range from medium to high. The unit is in a successional stage of stem exclusion. This unit lies within the 

Deer Winter Range landscape zone.

Silvicultural Objective/Desired Condition (Deer Winter Range):

The management goal of young-growth treatment in this landscape zone is to improve growth, productivity, and 

forest health, while managing for a sustained yield, even flow of an industrial wood supply and improving deer 

winter range conditions in treated stands for the remainder of the rotation.

Silvicultural Prescription: Intermediate Treatment Crown Thinning

Apply crown thinning at approximately stand age 50. Crown thinning should retain at least 50% of the existing 

pretreatment stand basal area at that time. Retain trees in a generally uniform pattern. Skips or thickets may be left 

where logging system difficulties occur, in portions of settings where windthrow risk is expected to be unacceptable 

after thinning like along exposed stand edges or knobs, and in any areas where wildlife dens or nests are found. 

Gaps may occur where cable corridors come together near landings or other areas where extra room is needed to 

facilitate yarding or meet specific wildlife objectives.

Silvicultural Prescription: Systematic Thinning

Apply systematic thinning strips in portions of the unit unsuitable for uniform thinning. Systematic thinning should 

be applied primarily in downhill settings where full suspension cannot be achieved or other areas where uniform 

thinning will result in unacceptable levels of residual tree damage or otherwise is operationally infeasible. 

Systematic thinning should remove all trees within corridors 20 to 60 feet wide depending on operational feasibility, 

visual concerns and /or windthrow potential. Maintain a 60-120 foot distance between cut corridors resulting in at 

least a 50% basal area retention. Where visuals are of concern, cut corridors should be kept to approximately 20 feet 

in width pending scenery direction. Although parallel strips are likely to be most common, there are options for fan 

shapes, depending on landing/road locations.

The treatments being proposed are based on the analysis of current data for this stand projected forward in time 

using growth modeling. Marking guidelines covering the specifics of the treatment, such as species to favor for 

retention will be developed at the time of treatment.

TIMBER/YARDING: Cable and shovel yarding to NFS road 3012000. 

ENGINEERING/ROADS: No proposed road construction or reconstruction.

BOTANY: No Concerns

INVASIVE SPECIES: No Concerns

FISHERIES: Streams are tributaries to Rio Beaver. Stream 1 is Rio Beaver.

Stream#: 1 Class: I Flagging: B/W C-Type: FPM

Concerns: yarding through RMA

Buffer (RMA): Class I for FPM greater of 130 feet, flood plain, riparian vegetation or soils, or riparian associated 

wetland fens. 

Alternatives: ROD Buffer (RAW): no review needed Protection: Category A

Stream#: 1.NL Class: I, III Flagging: B/W, O/W C-Type: AFH, HCM Concerns: none

Buffer (RMA): Class I for AFM greater of 140 feet or active portion of the alluvial fan. Class III for HCM to the top 

of the side-slope break. 

Alternatives: ROD Buffer (RAW): no review needed Protection: Category A and B 

Stream#: 1.NAL Class: I Flagging: B/W C-Type: MMO

Concerns: yarding through RMA

584 - Big Thorne Project Record of Decision Appendix 1
Buffer (RMA): Class I for MMO greater of 120 feet, flood plain, riparian vegetation or soils, or riparian associated 

wetland fens. 

Alternatives: ROD Buffer (RAW): no review needed Protection: Category A

Stream#: 1.NBL Class: I Flagging: B/W C-Type: AFH, HCM Concerns: none

Buffer (RMA): Class I for AFM greater of 140 feet or active portion of the alluvial fan. Class III for HCM to the top 

of the side-slope break. 

Alternatives: ROD Buffer (RAW): no review needed Protection: Category A 

GEOLOGY/KARST: No Concerns

HERITAGE RESOURCES: This unit was investigated per the third amended interagency Programmatic Agreement 

(PA) for historic properties. As specified by the PA, any potential adverse effect on historic properties (if any) was 

mitigated and portions of the Area of Potential Effect will be monitored by a qualified heritage specialist during 

and/or after actual ground disturbance.

SCENERY: No concerns.

RECREATION: No concerns.

SOILS/WETLANDS: Slopes range from about 20% to about 75% based on DEMs. All slopes greater than 72% 

will be verified prior to implementation. A small debris torrent (initiated in 1993) occurs near the center of the unit 

(in the cable setting). No wetlands have been mapped in the unit. The soils and wetlands are suitable for a minimum 

of partial suspension cable yarding or shovel yarding and should follow R10 BMPs 12.5, 13.2 and 13.9 and National 

Core BMPs Plan-2, Veg-2, Veg-4, Veg-5, and Veg-6. Follow shovel yarding guidelines outlined in the introductions 

to unit cards (R10 BMP 13.9 and National Core Veg-4). Partial harvest with ground-based removal and partial 

suspension thinning will meet soil quality standards.

WILDLIFE: Unit is located in Rio Beaver drainage, one of the north-south linkages between the Honker large OGR 

and the Karta Wilderness. Commercial thinning is expected to enhance wildlife habitat by improving travel corridor

and forage availability and removing the stand from the stem exclusion phase for the duration of rotation (until it is 

harvested again).

Appendix 1 - Unit Cards - 585 Appendix 1
3012180

3012000

3012200

3012210

1.RR.1R

1.OR

1

1.MR

1.QR

1.NL

1.OR

1.1L

1.4 R

1.PR

1.RR .1R

1 .QR

1.NAL

1.NBL

1

1.MR

1

1966

1966

1966

1993

505

507

508

506

A

A

B

B

C

C

D

D

E

E

F

F

G

G

H

H

I

I

J

J

10 10

9 9

8 8

7 7

6 6

5 5

4 4

3 3

2 2

1 1

Unit Number 506 ROD VCU: 

0 500

Feet

Past Harvest

(Year Origin)

Unsuitable Soils

Riparian Management

Area

Slope > 72%

Other Ownership

Old Growth Habitat LUD

Recreation River LUD

Scenic River LUD

State Highway

National Forest System Road - Open

National Forest System Road - Stored

Non-National Forest 

System Road

Proposed Reconstructed Road

Proposed System Road 

(reopened Decommissioned)

Proposed Temporary Road 

(reopened Decommissioned)

Proposed System Road

Proposed Temporary

Road

Young Growth

Systematic Strip Thin

Uniform Crown Thin

Old Growth

Helicopter

Shovel or Cable

Partial Cut

Class 1 Stream

Class 2 Stream

Class 3 Stream

Class 4 Stream

Lake

100’ Contour

Eagle Nest Buffer

Legacy

Visual Buffer

Deferred (within

Original Unit

Reconnaissance

Area)

597.2

R:\projects_2010\BigThorneEIS\maps\Unitcards\ROD_YG.mxd 3 June 2013

RR

SR

Young Growth

586 - Big Thorne Project Record of Decision Appendix 1
Unit 

Number: 507

Alternatives: ROD Total Unit 22.6

Acres: 

Prescription: Systematic and

Crown Thinning

VCU 

Number: 597.2 

Yarding System:

Cable, Shovel

Net Harvest

Volume 158

(MBF): 

LUD: Timber Production

Summary of Concerns, Responses, BMPs and Mitigation

SILVICULTURE: Existing Conditions: This unit lies entirely within Stand #5972100046. The stand origination date 

is 1966. Approximately 89% of the stand area was pre-commercially thinned in 1986. The site potential in this area 

appears to range from medium to high. The unit is in a successional stage of stem exclusion. This unit lies within the 

Deer Winter Range landscape zone.

Silvicultural Objective/Desired Condition (Deer Winter Range):

The management goal of young-growth treatment in this landscape zone is to improve growth, productivity, and 

forest health, while managing for a sustained yield, even flow of an industrial wood supply and improving deer 

winter range conditions in treated stands for the remainder of the rotation.

Silvicultural Prescription: Intermediate Treatment Crown Thinning

Apply crown thinning at approximately stand age 50. Crown thinning should retain at least 50% of the existing 

pretreatment stand basal area at that time. Retain trees in a generally uniform pattern. Skips or thickets may be left 

where logging system difficulties occur, in portions of settings where windthrow risk is expected to be unacceptable 

after thinning like along exposed stand edges or knobs, and in any areas where wildlife dens or nests are found. 

Gaps may occur where cable corridors come together near landings or other areas where extra room is needed to 

facilitate yarding or meet specific wildlife objectives.

Silvicultural Prescription: Systematic Thinning

Apply systematic thinning strips in portions of the unit unsuitable for uniform thinning. Systematic thinning should 

be applied primarily in downhill settings where full suspension cannot be achieved or other areas where uniform 

thinning will result in unacceptable levels of residual tree damage or otherwise is operationally infeasible. 

Systematic thinning should remove all trees within corridors 20 to 60 feet wide depending on operational feasibility, 

visual concerns and /or windthrow potential. Maintain a 60-120 foot distance between cut corridors resulting in at 

least a 50% basal area retention. Where visuals are of concern, cut corridors should be kept to approximately 20 feet 

in width pending scenery direction. Although parallel strips are likely to be most common, there are options for fan 

shapes, depending on landing/road locations.

The treatments being proposed are based on the analysis of current data for this stand projected forward in time 

using growth modeling. Marking guidelines covering the specifics of the treatment, such as species to favor for 

retention will be developed at the time of treatment.

TIMBER/YARDING: Shovel and cable yarding to NFS road 3012180. 

ENGINEERING/ROADS: No proposed road construction or reconstruction.

BOTANY: No Concerns

INVASIVE SPECIES: No Concerns

FISHERIES: Streams are tributaries to Rio Beaver. 

Stream#: 1 Class: III, IV Flagging: O/W, G/W C-Type: HCL, HCO Concerns: none

Buffer (RMA): Class III for HCL to the top of the side-slope break. 

Alternatives: ROD Buffer (RAW): no review needed Protection: Category B and C

All other streams in unit: Class IV Flagging: G/W C-Type: HC and MM 

Concerns: none Buffer (RMA): none Protection: Category C

GEOLOGY/KARST: No Concerns

HERITAGE RESOURCES: This unit was investigated per the third amended interagency Programmatic Agreement 

(PA) for historic properties. As specified by the PA, any potential adverse effect on historic properties (if any) was 

mitigated and portions of the Area of Potential Effect will be monitored by a qualified heritage specialist during 

and/or after actual ground disturbance.

SCENERY: No concerns.

RECREATION: No concerns.

Appendix 1 - Unit Cards - 587 Appendix 1
SOILS/WETLANDS: Slopes range from about 15% to about 60% based on DEMs. There are no slopes greater than 

72% mapped in the unit. A small debris avalanche (initiated in 1993) occurs near the center of the unit (in the cable 

setting). No wetlands have been mapped in the unit. The soils and wetlands are suitable for a minimum of partial 

suspension cable yarding or shovel yarding and should follow R10 BMPs 12.5, 13.2 and 13.9 and National Core 

BMPs Plan-2, Veg-2, Veg-4, Veg-5, and Veg-6. Follow shovel yarding guidelines outlined in the introductions to 

unit cards (R10 BMP 13.9 and National Core Veg-4). Partial harvest with ground-based removal and partial 

suspension thinning will meet soil quality standards.

WILDLIFE: Unit is located in Rio Beaver drainage, one of the north-south linkages between the Honker large OGR 

and the Karta Wilderness. Commercial thinning is expected to enhance wildlife habitat by improving travel corridor 

and forage availability and removing the stand from the stem exclusion phase for the duration of rotation (until it is 

harvested again).

588 - Big Thorne Project Record of Decision Appendix 1
3012145

3012180

3012000

3012210

3012200

1

1.NL

1.4 R

1.1L

1

1.MR

1.NAL

1.NBL

1

1992

1966

1966

1966

1993

1993

505

507

506

A

A

B

B

C

C

D

D

E

E

F

F

G

G

H

H

I

I

J

J

10 10

9 9

8 8

7 7

6 6

5 5

4 4

3 3

2 2

1 1

Unit Number 507 ROD VCU: 

0 500

Feet

Past Harvest

(Year Origin)

Unsuitable Soils

Riparian Management

Area

Slope > 72%

Other Ownership

Old Growth Habitat LUD

Recreation River LUD

Scenic River LUD

State Highway

National Forest System Road - Open

National Forest System Road - Stored

Non-National Forest 

System Road

Proposed Reconstructed Road

Proposed System Road 

(reopened Decommissioned)

Proposed Temporary Road 

(reopened Decommissioned)

Proposed System Road

Proposed Temporary

Road

Young Growth

Systematic Strip Thin

Uniform Crown Thin

Old Growth

Helicopter

Shovel or Cable

Partial Cut

Class 1 Stream

Class 2 Stream

Class 3 Stream

Class 4 Stream

Lake

100’ Contour

Eagle Nest Buffer

Legacy

Visual Buffer

Deferred (within

Original Unit

Reconnaissance

Area)

597.2

R:\projects_2010\BigThorneEIS\maps\Unitcards\ROD_YG.mxd 3 June 2013

RR

SR

Young Growth

Appendix 1 - Unit Cards - 589 Appendix 1
Unit 

Number: 508

Alternatives: ROD Total Unit 

Acres: 41.4

Prescription: Systematic and

Crown Thinning

VCU 

Number: 597.2 

Yarding System:

Cable, Shovel

Net Harvest

Volume 

(MBF): 278

LUD: Timber Production

Summary of Concerns, Responses, BMPs and Mitigation

SILVICULTURE: Existing Conditions: This unit lies primarily within Stand #5972100505. The stand origination 

date is 1966. Approximately 90% of the stand area was pre-commercially thinned in 1985. Approximately 3.8 acres 

of the unit lies within Stand #5972400501. The stand origination date is 1966. Approximately 36% of the stand area 

has been pre-commercially thinned. This was primarily completed in 1985. The site potential in this area appears to 

range from medium to high. The unit is in a successional stage of stem exclusion. This unit lies within the Deer 

Winter Range landscape zone.

Silvicultural Objective/Desired Condition (Deer Winter Range):

The management goal of young-growth treatment in this landscape zone is to improve growth, productivity, and 

forest health, while managing for a sustained yield, even flow of an industrial wood supply and improving deer 

winter range conditions in treated stands for the remainder of the rotation.

Silvicultural Prescription: Intermediate Treatment Crown Thinning

Apply crown thinning at approximately stand age 50. Crown thinning should retain at least 50% of the existing 

pretreatment stand basal area at that time. Retain trees in a generally uniform pattern. Skips or thickets may be left 

where logging system difficulties occur, in portions of settings where windthrow risk is expected to be unacceptable 

after thinning like along exposed stand edges or knobs, and in any areas where wildlife dens or nests are found. 

Gaps may occur where cable corridors come together near landings or other areas where extra room is needed to 

facilitate yarding or meet specific wildlife objectives.

Silvicultural Prescription: Systematic Thinning

Apply systematic thinning strips in portions of the unit unsuitable for uniform thinning. Systematic thinning should 

be applied primarily in downhill settings where full suspension cannot be achieved or other areas where uniform 

thinning will result in unacceptable levels of residual tree damage or otherwise is operationally infeasible. 

Systematic thinning should remove all trees within corridors 20 to 60 feet wide depending on operational feasibility, 

visual concerns and /or windthrow potential. Maintain a 60-120 foot distance between cut corridors resulting in at 

least 50% basal area retention. Where visuals are of concern, cut corridors should be kept to approximately 20 feet 

in width pending scenery direction. Although parallel strips are likely to be most common, there are options for fan 

shapes, depending on landing/road locations.

The treatments being proposed are based on the analysis of current data for this stand projected forward in time 

using growth modeling. Marking guidelines covering the specifics of the treatment, such as species to favor for 

retention will be developed at the time of treatment.

TIMBER/YARDING: Shovel and cable yarding to NFS road 3012210. 

ENGINEERING/ROADS: Unit is accessed by reconstruction of NFS roads 3012200 and 3012210, totaling 6,400 

feet. See road card for information on NFS road.

BOTANY: No Concerns

INVASIVE SPECIES: No Concerns

FISHERIES: Streams are tributaries to Rio Beaver. Stream 1 is Rio Beaver.

Stream#: 1 Class: I Flagging: B/W C-Type: FPM Concerns: none

Buffer (RMA): Class I for FPM greater of 130 feet, flood plain, riparian vegetation or soils, or riparian associated 

wetland fens. 

Alternatives: ROD Buffer (RAW): no review needed Protection: Category A

Stream#: 1.MR Class: I, II, IV Flagging: B/W, G/W C-Type: PAB, HCL, HCO Concerns: none

Buffer (RMA): Class I for PAB greater of 100 feet, flood plain, riparian vegetation or soils, or riparian associated 

wetland fens. Class II for HCL greater of 100 feet or to the top of the side-slope break. 

Alternatives: ROD Buffer (RAW): no review needed Protection: Category A and C

590 - Big Thorne Project Record of Decision Appendix 1
Stream#: 1.OR Class: I, III, IV Flagging: B/W, O/W, G/W C-Type: FPO, MMO, HCL, HCO 

Concerns: none

Buffer (RMA): Class I greater of 130 feet (for FPO) or 100 feet (for MMO), flood plain, riparian vegetation or 

soils, or riparian associated wetland fens. Class III for HCL to the top of the side-slope break.

Alternatives: ROD Buffer (RAW): no review needed Protection: Category A and C 

Stream#: 1.PR Class: I, IV Flagging: B/W, G/W C-Type: FPS, HCO Concerns: none

Buffer (RMA): Class I for FPS greater of 130 feet, flood plain, riparian vegetation or soils, or riparian associated 

wetland fens. 

Alternatives: ROD Buffer (RAW): no review needed Protection: Category A and C 

Stream#: 1.QR Class: I, II Flagging: B/W C-Type: MMS, HCO Concerns: none

Buffer (RMA): Buffer (RMA): Class I and II greater of 120 feet (for MMS) or 100 feet (for HCO), flood plain, 

riparian vegetation or soils, or riparian associated wetland fens. 

Alternatives: ROD Buffer (RAW): no review needed Protection: Category A

Stream#: 1.RR Class: I Flagging: B/W C-Type: PAB Concerns: none

Buffer (RMA): Class I for PAB greater of 100 feet, flood plain, riparian vegetation or soils, or riparian associated 

wetland fens. 

Alternatives: ROD Buffer (RAW): no review needed Protection: Category A 

Stream#: 1.RR.1R Class: I, II, III Flagging: B/W, O/W C-Type: AFH, HCM, HCD Concerns: none

Buffer (RMA): Class I for AFH greater of 140 feet or active portion of the alluvial fan. Class II for HCM greater of 

100 feet or to the top of the side-slope break. Class III for HCD to the top of the side-slope break.

Alternatives: ROD Buffer (RAW): no review needed Protection: Category A and B

Stream#: 1.SR Class: I, II, III Flagging: B/W, O/W C-Type: AFH, HCL Concerns: none

Buffer (RMA): Class I for AFH greater of 140 feet or active portion of the alluvial fan. Class III for HCL to the top 

of the side-slope break.

Alternatives: ROD Buffer (RAW): no review needed Protection: Category A and B

Stream#: 1.TR Class: I, II, III Flagging: B/W, O/W C-Type: AFH, HCL Concerns: none

Buffer (RMA): Class I and II for AFH greater of 140 feet or active portion of the alluvial fan. Class III for HCL to 

the top of the side-slope break.

Alternatives: ROD Buffer (RAW): no review needed Protection: Category A and B

All other streams in unit: Class IV Flagging: G/W C-Type: HC and MM 

Concerns: none Buffer (RMA): none Protection: Category C

GEOLOGY/KARST: No Concerns

HERITAGE RESOURCES: This unit was investigated per the third amended interagency Programmatic Agreement 

(PA) for historic properties. As specified by the PA, any potential adverse effect on historic properties (if any) was 

mitigated and portions of the Area of Potential Effect will be monitored by a qualified heritage specialist during 

and/or after actual ground disturbance.

SCENERY: No concerns.

RECREATION: No concerns.

SOILS/WETLANDS: Slopes range from about 10% to more than 72% based on DEMs. All slopes greater than 

72% will be verified prior to implementation. Nearly 3⁄4 of the unit is less than 35% slope. There are about 16 acres 

affected by debris avalanches in the unit. There are approximately 19 acres of forested wetland adjacent to the 

eastern unit boundary (R10 BMP 12.5 and National Core BMPs AqEco-2 and AqEco-4). The soils and wetlands are 

suitable for a minimum of partial suspension cable yarding or shovel yarding and should follow R10 BMPs 12.5, 

13.2 and 13.9 and National Core BMPs Plan-2, Veg-2, Veg-4, Veg-5, and Veg-6. Follow shovel yarding guidelines 

outlined in the introductions to unit cards (R10 BMP 13.9 and National Core Veg-4). Partial harvest with groundbased removal and partial suspension thinning will meet soil quality standards.

WILDLIFE: Unit is located in Rio Beaver drainage, one of the north-south linkages between the Honker large OGR 

and the Karta Wilderness. Commercial thinning is expected to enhance wildlife habitat by improving travel corridor 

Appendix 1 - Unit Cards - 591 Appendix 1
and forage availability and removing the stand from the stem exclusion phase for the duration of rotation (until it is 

harvested again).

592 - Big Thorne Project Record of Decision Appendix 1
3012280

3012210

3012000

3012280

3012210

3012000

1.RR.1R

1.RR

1.MR

1.OR

1.MR

1.SR

1.NL

1.RR.1R

1.OR

1.QR

1.TR

1

1.PR

1.SR.1L

1.TR

1.TR

1.R Rcc

1.NA

L

1.QR

1.NBL

1.SR 1966

1966

508

506

511

511

508

A

A

B

B

C

C

D

D

E

E

F

F

G

G

H

H

I

I

J

J

10 10

9 9

8 8

7 7

6 6

5 5

4 4

3 3

2 2

1 1

Unit Number 508 ROD VCU: 

0 500

Feet

Past Harvest

(Year Origin)

Unsuitable Soils

Riparian Management

Area

Slope > 72%

Other Ownership

Old Growth Habitat LUD

Recreation River LUD

Scenic River LUD

State Highway

National Forest System Road - Open

National Forest System Road - Stored

Non-National Forest 

System Road

Proposed Reconstructed Road

Proposed System Road 

(reopened Decommissioned)

Proposed Temporary Road 

(reopened Decommissioned)

Proposed System Road

Proposed Temporary

Road

Young Growth

Systematic Strip Thin

Uniform Crown Thin

Old Growth

Helicopter

Shovel or Cable

Partial Cut

Class 1 Stream

Class 2 Stream

Class 3 Stream

Class 4 Stream

Lake

100’ Contour

Eagle Nest Buffer

Legacy

Visual Buffer

Deferred (within

Original Unit

Reconnaissance

Area)

597.2

R:\projects_2010\BigThorneEIS\maps\Unitcards\ROD_YG.mxd 3 June 2013

RR

SR

Young Growth

Appendix 1 - Unit Cards - 593 Appendix 1
Unit 

Number: 511

Alternatives: ROD Total Unit 11.5

Acres: 

Prescription: Crown Thinning

VCU 

Number: 597.2 

Yarding System:

Cable, Shovel

Net Harvest

Volume 67

(MBF): 

LUD: Timber Production

Summary of Concerns, Responses, BMPs and Mitigation

SILVICULTURE: Existing Conditions: This unit lies primarily within Stand #5972400501. The stand origination 

date is 1966. Approximately 36% of the stand area has been pre-commercially thinned. This was primarily 

completed in 1985. Approximately 0.5 acres of the unit lies within Stand #5972100505. The stand origination date is 

1966. Approximately 90% of the stand area was pre- commercially thinned in 1985. The site potential in this area

appears to range from medium to high. The unit is in a successional stage of stem exclusion. This unit lies within the 

Deer Winter Range landscape zone.

Silvicultural Objective/Desired Condition (Deer Winter Range):

The management goal of young-growth treatment in this landscape zone is to improve growth, productivity, and 

forest health, while managing for a sustained yield, even flow of an industrial wood supply and improving deer 

winter range conditions in treated stands for the remainder of the rotation.

Silvicultural Prescription: Intermediate Treatment Crown Thinning

Apply crown thinning at approximately stand age 50. Crown thinning should retain at least 50% of the existing 

pretreatment stand basal area at that time. Retain trees in a generally uniform pattern. Skips or thickets may be left 

where logging system difficulties occur, in portions of settings where windthrow risk is expected to be unacceptable 

after thinning like along exposed stand edges or knobs, and in any areas where wildlife dens or nests are found. 

Gaps may occur where cable corridors come together near landings or other areas where extra room is needed to 

facilitate yarding or meet specific wildlife objectives.

This treatment is being proposed based on the analysis of current data for this stand projected forward in time using 

growth modeling. Marking guidelines covering the specifics of the treatment, such as species to favor for retention 

will be developed at the time of treatment.

TIMBER/YARDING: Shovel settings yard to NFS roads 3012000 and 3012300. Cable settings yard to NFS road 

3012300.

ENGINEERING/ROADS: Unit is accessed by reconstruction of NFS roads 3012000 and 3012300, totaling 5,300 

feet. See road cards for information on NFS roads. 

BOTANY: No Concerns

INVASIVE SPECIES: No Concerns

FISHERIES: Streams are tributaries to Rio Beaver. Stream 1 is Rio Beaver.

Stream#: 1 Class: I Flagging: B/W C-Type: FPM Concerns: none

Buffer (RMA): Class I for FPM greater of 130 feet, flood plain, riparian vegetation or soils, or riparian associated 

wetland fens. 

Alternatives: ROD Buffer (RAW): no review needed Protection: Category A

Stream#: 1.1L Class: I, II Flagging: B/W C-Type: PAS, MMO, HCO Concerns: none

Buffer (RMA): Class I greater of 100 feet (for PAS) or 120 feet (for MMO), flood plain, riparian vegetation or 

soils, or riparian associated wetland fens. Class II for HCO greater of 100 feet or to the top of the side-slope break. 

Alternatives: ROD Buffer (RAW): no review needed Protection: Category A

Stream#: 1.1L.1L Class: I Flagging: B/W C-Type: HCO Concerns: none

Buffer (RMA): Class I for HCO greater of 100 feet or to the top of the side-slope break. 

Alternatives: ROD Buffer (RAW): no review needed Protection: Category A

Stream#: 1.2L Class: I Flagging: B/W C-Type: AFM, MMS Concerns: none

Buffer (RMA): Class I for AFM greater of 140 feet or active portion of the alluvial fan. Class I for MMS greater of 

120 feet, flood plain, riparian vegetation or soils, or riparian associated wetland fens. 

Alternatives: ROD Buffer (RAW): no review needed Protection: Category A

594 - Big Thorne Project Record of Decision Appendix 1
Stream#: 1.2L.1L Class: II, IV Flagging: B/W, G/W C-Type: HCL, HCO Concerns: none

Buffer (RMA): Class II for HCL greater of 100 feet or to the top of the side-slope break. 

Alternatives: ROD Buffer (RAW): no review needed Protection: Category A and C 

Stream#: 1.2L.1R Class: I Flagging: B/W C-Type: AFM Concerns: none

Buffer (RMA): Class I for AFM greater of 140 feet or active portion of the alluvial fan. 

Alternatives: ROD Buffer (RAW): no review needed Protection: Category A

Stream#: 1.3L Class: I Flagging: B/W C-Type: AFM Concerns: none

Buffer (RMA): Class I for AFM greater of 140 feet or active portion of the alluvial fan. 

Alternatives: ROD Buffer (RAW): no review needed Protection: Category A

GEOLOGY/KARST: No Concerns

HERITAGE RESOURCES: This unit was investigated per the third amended interagency Programmatic Agreement 

(PA) for historic properties. As specified by the PA, any potential adverse effect on historic properties (if any) was 

mitigated and portions of the Area of Potential Effect will be monitored by a qualified heritage specialist during 

and/or after actual ground disturbance.

SCENERY: No concerns.

RECREATION: No concerns.

SOILS/WETLANDS: Slopes range from about 10% to about 30% based on DEMs. There is about 1/2 acre of moss 

muskeg and 2 acres of tall sedge fen in the unit (BMP 12.5). (R10 BMP 12.5 and National Core BMPs AqEco-2 and 

AqEco-4). The soils and wetlands are suitable for a minimum of partial suspension cable yarding or shovel yarding 

and should follow R10 BMPs 12.5, 13.2 and 13.9 and National Core BMPs Plan-2, Veg-2, Veg-4, Veg-5, and Veg6. Follow shovel yarding guidelines outlined in the introductions to unit cards (R10 BMP 13.9 and National Core 

Veg-4). Partial harvest with ground-based removal and partial suspension thinning will meet soil quality standards.

WILDLIFE: Unit is located in Rio Beaver drainage, one of the north-south linkages between the Honker large OGR 

and the Karta Wilderness. Commercial thinning is expected to enhance wildlife habitat by improving travel corridor 

and forage availability and removing the stand from the stem exclusion phase for the duration of rotation (until it is 

harvested again).

Appendix 1 - Unit Cards - 595 Appendix 1
3012280

3012210

3012280

3012300

3012300

3012000

3012210

3012300

1

1

1

1

1.SR

1.2L.1L

1.2L

1.TR

1.2L

1.1L.1L

1.SR.1L

1.TR

1.1L

1.TR

1

1.2L 1.SR

1

1.RR

1966

1966

508

508

512

511

511

511

511

37

A

A

B

B

C

C

D

D

E

E

F

F

G

G

H

H

I

I

J

J

10 10

9 9

8 8

7 7

6 6

5 5

4 4

3 3

2 2

1 1

Unit Number 511 ROD VCU: 

0 500

Feet

Past Harvest

(Year Origin)

Unsuitable Soils

Riparian Management

Area

Slope > 72%

Other Ownership

Old Growth Habitat LUD

Recreation River LUD

Scenic River LUD

State Highway

National Forest System Road - Open

National Forest System Road - Stored

Non-National Forest 

System Road

Proposed Reconstructed Road

Proposed System Road 

(reopened Decommissioned)

Proposed Temporary Road 

(reopened Decommissioned)

Proposed System Road

Proposed Temporary

Road

Young Growth

Systematic Strip Thin

Uniform Crown Thin

Old Growth

Helicopter

Shovel or Cable

Partial Cut

Class 1 Stream

Class 2 Stream

Class 3 Stream

Class 4 Stream

Lake

100’ Contour

Eagle Nest Buffer

Legacy

Visual Buffer

Deferred (within

Original Unit

Reconnaissance

Area)

597.2

R:\projects_2010\BigThorneEIS\maps\Unitcards\ROD_YG.mxd 3 June 2013

RR

SR

Young Growth

596 - Big Thorne Project Record of Decision Appendix 1
Unit 

Number: 512

Alternatives: ROD Total Unit 21.0

Acres:

Prescription: Systematic and

Crown Thinning

VCU 

Number: 597.2 

Yarding System:

Cable, Shovel

Net Harvest

Volume 152

(MBF): 

LUD: Timber Production

Summary of Concerns, Responses, BMPs and Mitigation

SILVICULTURE: Existing Conditions: This unit lies entirely within Stand #5972400501. The stand origination date 

is 1966. Approximately 36% of the stand area has been pre-commercially thinned. This was primarily completed in 

1985. The site potential in this area appears to range from medium to high. This unit is in a successional stage of 

stem exclusion. Approximately 15 acres of this unit lies within the Deer Winter Range landscape zone. The 

remaining approximately 6 acres is within the Uplands/Mountain Slopes landscape zone.

Silvicultural Objective/Desired Condition (Deer Winter Range):

The management goal of young-growth treatment in this landscape zone is to improve growth, productivity, and 

forest health, while managing for a sustained yield, even flow of an industrial wood supply and improving deer 

winter range conditions in treated stands for the remainder of the rotation.

Silvicultural Prescription: Intermediate Treatment Crown Thinning

Apply crown thinning at approximately stand age 50. Crown thinning should retain at least 50% of the existing 

pretreatment stand basal area at that time. Retain trees in a generally uniform pattern. Skips or thickets may be left 

where logging system difficulties occur, in portions of settings where windthrow risk is expected to be unacceptable 

after thinning like along exposed stand edges or knobs, and in any areas where wildlife dens or nests are found. 

Gaps may occur where cable corridors come together near landings or other areas where extra room is needed to 

facilitate yarding or meet specific wildlife objectives.

Silvicultural Prescription: Systematic Thinning

Apply systematic thinning strips in portions of the unit unsuitable for uniform thinning. Systematic thinning should 

be applied primarily in downhill settings where full suspension cannot be achieved or other areas where uniform 

thinning will result in unacceptable levels of residual tree damage or otherwise is operationally infeasible. 

Systematic thinning should remove all trees within corridors 20 to 60 feet wide depending on operational feasibility, 

visual concerns and /or windthrow potential. Maintain a 60-120 foot distance between cut corridors resulting in at 

least 50% basal area retention. Where visuals are of concern, cut corridors should be kept to approximately 20 feet 

in width pending scenery direction. Although parallel strips are likely to be most common, there are options for fan 

shapes, depending on landing/road locations.

The treatments being proposed are based on the analysis of current data for this stand projected forward in time 

using growth modeling. Marking guidelines covering the specifics of the treatment, such as species to favor for 

retention will be developed at the time of treatment.

TIMBER/YARDING: Shovel and cable yarding to NFS road 3012000.

ENGINEERING/ROADS: Unit is accessed by reconstruction of NFS road 3012000, totaling 6,000 feet. See road 

card for information on NFS road.

BOTANY: No Concerns

INVASIVE SPECIES: No Concerns

FISHERIES: Streams are tributaries to Rio Beaver. Stream 1 is Rio Beaver.

Stream#: 1 Class: I Flagging: B/W C-Type: FPM Concerns: none

Buffer (RMA): Class I for FPM greater of 130 feet, flood plain, riparian vegetation or soils, or riparian associated 

wetland fens. 

Alternatives: ROD Buffer (RAW): no review needed Protection: Category A

Stream#: 1.4L Class: I, IV Flagging: B/W, G/W C-Type: HCO Concerns: none

Buffer (RMA): Class I for HCO greater of 100 feet or to the top of the side-slope break. 

Alternatives: ROD Buffer (RAW): no review needed Protection: Category A and C

GEOLOGY/KARST: No Concerns

HERITAGE RESOURCES: This unit was investigated per the third amended interagency Programmatic Agreement 

(PA) for historic properties. As specified by the PA, any potential adverse effect on historic properties (if any) was 

Appendix 1 - Unit Cards - 597 Appendix 1
mitigated and portions of the Area of Potential Effect will be monitored by a qualified heritage specialist during 

and/or after actual ground disturbance.

SCENERY: No concerns.

RECREATION: No concerns.

SOILS/WETLANDS: Slopes range from about 20% to over 72% based on DEMs. All slopes greater than 72% will 

be verified prior to implementation. No wetlands have been mapped in the unit. The soils and wetlands are suitable 

for a minimum of partial suspension cable yarding or shovel yarding and should follow R10 BMPs 12.5, 13.2 and 

13.9 and National Core BMPs Plan-2, Veg-2, Veg-4, Veg-5, and Veg-6. Follow shovel yarding guidelines outlined 

in the introductions to unit cards (R10 BMP 13.9 and National Core Veg-4). Partial harvest with ground-based 

removal and partial suspension thinning will meet soil quality standards.

WILDLIFE: Unit is located in Rio Beaver drainage, one of the north-south linkages between the Honker large OGR 

and the Karta Wilderness. Commercial thinning is expected to enhance wildlife habitat by improving travel corridor 

and forage availability and removing the stand from the stem exclusion phase for the duration of rotation (until it is 

harvested again).

598 - Big Thorne Project Record of Decision Appendix 1
3012280

3012300

3012300

3012000

1.1L

1.1L

1L.1L

1.2L.1R

1.4L

1.1L.1L

1.2L

1.

.4R

4L

1.2L.1L

1.2L

1.1R

1

1

1.2L

1

1

1

1

1.2L 1.2L

1966

38

512

514

511

511

A

A

B

B

C

C

D

D

E

E

F

F

G

G

H

H

I

I

J

J

10 10

9 9

8 8

7 7

6 6

5 5

4 4

3 3

2 2

1 1

Unit Number 512 ROD VCU: 

0 500

Feet

Past Harvest

(Year Origin)

Unsuitable Soils

Riparian Management

Area

Slope > 72%

Other Ownership

Old Growth Habitat LUD

Recreation River LUD

Scenic River LUD

State Highway

National Forest System Road - Open

National Forest System Road - Stored

Non-National Forest 

System Road

Proposed Reconstructed Road

Proposed System Road 

(reopened Decommissioned)

Proposed Temporary Road 

(reopened Decommissioned)

Proposed System Road

Proposed Temporary

Road

Young Growth

Systematic Strip Thin

Uniform Crown Thin

Old Growth

Helicopter

Shovel or Cable

Partial Cut

Class 1 Stream

Class 2 Stream

Class 3 Stream

Class 4 Stream

Lake

100’ Contour

Eagle Nest Buffer

Legacy

Visual Buffer

Deferred (within

Original Unit

Reconnaissance

Area)

597.2

R:\projects_2010\BigThorneEIS\maps\Unitcards\ROD_YG.mxd 3 June 2013

RR

SR

Young Growth

Appendix 1 - Unit Cards - 599 Appendix 1
Unit 

Number: 514 

Alternatives: ROD Total Unit 79.1 

Acres: 

Prescription: Systematic and 

Crown Thinning 

VCU 

Number: 597.2 

Yarding System: 

Cable, Shovel 

Net Harvest 

Volume 491 

(MBF): 

LUD: Timber Production 

Summary of Concerns, Responses, BMPs and Mitigation 

SILVICULTURE: Existing Conditions: This unit lies entirely within Stand #5972400501. The stand origination date 

is 1966. Approximately 36% of the stand area has been pre-commercially thinned. This was primarily completed in 

1985. The site potential in this area ranges from medium to high. This unit is in a successional stage of stem 

exclusion. Approximately 66 acres of this unit lies within the Uplands/Mountain Slopes landscape zone. The 

remaining approximately 12 acres is within the Deer Winter Range landscape zone. 

Silvicultural Objective/Desired Condition (Deer Winter Range): 

The management goal of young-growth treatment in this landscape zone is to improve growth, productivity, and 

forest health, while managing for a sustained yield, even flow of an industrial wood supply and improving deer 

winter range conditions in treated stands for the remainder of the rotation. 

Silvicultural Objective/Desired Condition (Uplands/Mountain Slopes): 

The management goal of young-growth treatments in this landscape zone is to manage for a sustained yield, even 

flow of an industrial wood supply, while meeting multiple resource objectives, wherever possible. Treatments 

should improve growth and productivity, improve forest health, and promote forest stand conditions that will 

provide a diverse array of marketable forest products. 

Silvicultural Prescription: Intermediate Treatment Crown Thinning 

Apply crown thinning at approximately stand age 50. Crown thinning should retain at least 50% of the existing 

pretreatment stand basal area at that time. Retain trees in a generally uniform pattern. Skips or thickets may be left 

where logging system difficulties occur, in portions of settings where windthrow risk is expected to be unacceptable 

after thinning like along exposed stand edges or knobs, and in any areas where wildlife dens or nests are found. 

Gaps may occur where cable corridors come together near landings or other areas where extra room is needed to 

facilitate yarding or meet specific wildlife objectives. 

Silvicultural Prescription: Systematic Thinning 

Apply systematic thinning strips in portions of the unit unsuitable for uniform thinning. Systematic thinning should 

be applied primarily in downhill settings where full suspension cannot be achieved or other areas where uniform 

thinning will result in unacceptable levels of residual tree damage or otherwise is operationally infeasible. 

Systematic thinning should remove all trees within corridors 20 to 60 feet wide depending on operational feasibility, 

visual concerns and /or windthrow potential. Maintain a 60-120 foot distance between cut corridors resulting in at 

least 50% basal area retention. Where visuals are of concern, cut corridors should be kept to approximately 20 feet 

in width pending scenery direction. Although parallel strips are likely to be most common, there are options for fan 

shapes, depending on landing/road locations. 

The treatments being proposed are based on the analysis of current data for this stand projected forward in time 

using growth modeling. Marking guidelines covering the specifics of the treatment, such as species to favor for 

retention will be developed at the time of treatment. 

TIMBER/YARDING: Shovel and cable yarding to NFS roads 3012000 and 3012600. 

ENGINEERING/ROADS: Unit is accessed by reconstruction of NFS roads 3012000 and 3012600, totaling 16,900 

feet. See road cards for information on NFS roads. 

BOTANY: No Concerns 

INVASIVE SPECIES: No Concerns 

FISHERIES: Streams are tributaries to Rio Beaver. Characteristics for Stream 2 do not include project-specific, 

field-verified information. This information will be collected prior to implementation. 

Stream#: 1.1R Class: III Flagging: O/W C-Type: HCM Concerns: none 

Buffer (RMA): Class III for HCM to the top of the side-slope break. 

Alternatives: ROD Buffer (RAW): no review needed Protection: Category B 

600 - Big Thorne Project Record of Decision Appendix 1
Stream#: 1.1R.2R Class: III Flagging: O/W C-Type: HCM, HCD Concerns: erosion 

Buffer (RMA): Class III for HCM and HCD to the top of the side-slope break. 

Alternatives: ROD Buffer (RAW): no review needed Protection: Category B 

Stream#: 1.1R.4R Class: III Flagging: O/W C-Type: HCO, HCL Concerns: none 

Buffer (RMA): Class III for HCO and HCL to the top of the side-slope break. 

Alternatives: ROD Buffer (RAW): no review needed Protection: Category B 

Stream#: 1.1R.4R.1L Class: III Flagging: O/W C-Type: HCO Concerns: none 

Buffer (RMA): Class III for HCO to the top of the side-slope break. 

Alternatives: ROD Buffer (RAW): no review needed Protection: Category B 

Stream#: 1.1R.12R Class: III Flagging: O/W C-Type: AFM Concerns: erosion 

Buffer (RMA): Class III for AFM greater of 140 feet or active portion of the alluvial fan. 

Alternatives: ROD Buffer (RAW): no review needed Protection: Category B 

Stream#: 2 Class: III Flagging: O/W C-Type: HCM Concerns: none 

Buffer (RMA): Class III for HCM to the top of the side-slope break. 

Alternatives: ROD Buffer (RAW): no review needed Protection: Category B 

All other streams in unit: Class IV Flagging: G/W C-Type: HC and MM 

Concerns: none Buffer (RMA): none Protection: Category C 

GEOLOGY/KARST: No Concerns 

HERITAGE RESOURCES: This unit was investigated per the third amended interagency Programmatic Agreement 

(PA) for historic properties. As specified by the PA, any potential adverse effect on historic properties (if any) was 

mitigated and portions of the Area of Potential Effect will be monitored by a qualified heritage specialist during 

and/or after actual ground disturbance. 

SCENERY: No concerns. 

RECREATION: No concerns. 

SOILS/WETLANDS: Slopes are estimated to be less than 55%. There are no slopes greater than 72% mapped in the 

unit. There is a small amount of forested wetland (less than 1/4 acre) at the northern tip of the western polygon (R10 

BMP 12.5 and National Core BMPs AqEco-2 and AqEco-4). The soils and wetlands are suitable for a minimum of 

partial suspension cable yarding or shovel yarding and should follow R10 BMPs 12.5, 13.2 and 13.9 and National 

Core BMPs Plan-2, Veg-2, Veg-4, Veg-5, and Veg-6. Follow shovel yarding guidelines outlined in the introductions 

to unit cards (R10 BMP 13.9 and National Core Veg-4). Partial harvest with ground-based removal and partial 

suspension thinning will meet soil quality standards. 

WILDLIFE: Unit is located in Rio Beaver drainage, one of the north-south linkages between the Honker large OGR 

and the Karta Wilderness. Commercial thinning will enhance wildlife habitat by improving forage availability and 

removing the stand from the stem exclusion phase for the duration of rotation (until it is harvested again). 

Appendix 1 - Unit Cards - 601 Appendix 1
3012280

3012600

3012000

3012600

3012000

1.1L.1L

1.1R.5R

1.1R.3R

1.5L.1L

1.1R.2L

1.1L

1.8L

1.1R.2R

1.5L

1.1R.4R.1L.1L

1.4L

1.1R

1

1.7L

1.6L

1.1R.12R

1

1.2L

1.1R.1R

1.10R

1.1R.4 R

1.09R

1.1R.4R.1L

1966

514

514

515

38

A

A

B

B

C

C

D

D

E

E

F

F

G

G

H

H

I

I

J

J

10 10

9 9

8 8

7 7

6 6

5 5

4 4

3 3

2 2

1 1

Unit Number 514 ROD VCU: 

0 500

Feet

Past Harvest

(Year Origin)

Unsuitable Soils

Riparian Management

Area

Slope > 72%

Other Ownership

Old Growth Habitat LUD

Recreation River LUD

Scenic River LUD

State Highway

National Forest System Road - Open

National Forest System Road - Stored

Non-National Forest 

System Road

Proposed Reconstructed Road

Proposed System Road 

(reopened Decommissioned)

Proposed Temporary Road 

(reopened Decommissioned)

Proposed System Road

Proposed Temporary

Road

Young Growth

Systematic Strip Thin

Uniform Crown Thin

Old Growth

Helicopter

Shovel or Cable

Partial Cut

Class 1 Stream

Class 2 Stream

Class 3 Stream

Class 4 Stream

Lake

100’ Contour

Eagle Nest Buffer

Legacy

Visual Buffer

Deferred (within

Original Unit

Reconnaissance

Area)

597.2

R:\projects_2010\BigThorneEIS\maps\Unitcards\ROD_YG.mxd 3 June 2013

RR

SR

Young Growth

602 - Big Thorne Project Record of Decision Appendix 1
Unit 

Number: 515

Alternatives: ROD Total Unit 8.8

Acres: 

Prescription: Crown Thinning

VCU 

Number: 597.2 

Yarding System:

Cable

Net Harvest

Volume 52

(MBF): 

LUD: Timber Production

Summary of Concerns, Responses, BMPs and Mitigation

SILVICULTURE: Existing Conditions: This unit lies primarily within Stand #5972400501. The stand origination 

date is 1966. Approximately 36% of the stand area has been pre-commercially thinned. This was primarily 

completed in 1985. The site potential in this area appears to range from medium to high. The unit is in a 

successional stage of stem exclusion. This unit lies within the Uplands/Mountain Slopes landscape zone.

Silvicultural Objective/Desired Condition (Uplands/Mountain Slopes):

The management goal of young-growth treatments in this landscape zone is to manage for a sustained yield, even 

flow of an industrial wood supply, while meeting multiple resource objectives, wherever possible. Treatments 

should improve growth and productivity, improve forest health, and promote forest stand conditions that will 

provide a diverse array of marketable forest products.

Silvicultural Prescription: Intermediate Treatment Crown Thinning

Apply crown thinning at approximately stand age 50. Crown thinning should retain at least 50% of the existing 

pretreatment stand basal area at that time. Retain trees in a generally uniform pattern. Skips or thickets may be left 

where logging system difficulties occur, in portions of settings where windthrow risk is expected to be unacceptable 

after thinning like along exposed stand edges or knobs, and in any areas where wildlife dens or nests are found. 

Gaps may occur where cable corridors come together near landings or other areas where extra room is needed to 

facilitate yarding or meet specific wildlife objectives.

The treatments being proposed are based on the analysis of current data for this stand projected forward in time 

using growth modeling. Marking guidelines covering the specifics of the treatment, such as species to favor for 

retention will be developed at the time of treatment.

A Tongass Wide Young Growth Study site (POW Rio Beaver Experiment #4) overlaps the eastern third of unit. 

Protection of this site is required and this area may need to be deferred. Contact the Forestry Sciences Lab in Juneau 

for additional information.

TIMBER/YARDING: Cable yarding to the proposed temporary road.

ENGINEERING/ROADS: Unit is accessed by reconstruction of NFS road 3012000, totaling 12,600 feet and a 

proposed temporary road of 1,900 feet, constructed over decommissioned road bed. See road card for information 

on NFS road.

BOTANY: No Concerns

INVASIVE SPECIES: No Concerns

FISHERIES: Streams are tributaries to Rio Beaver. Stream 1 is Rio Beaver.

Stream#: 1 Class: II Flagging: B/W C- Type: HCM Concerns: erosion

Buffer (RMA): Class II for HCV greater of 100 feet or to the top of the side-slope break. 

Alternatives: ROD Buffer (RAW): no review needed Protection: Category A

All other streams in unit: Class IV Flagging: G/W C-Type: HC and MM 

Concerns: none Buffer (RMA): none Protection: Category C

Temporary road (reopened decommissioned) for Unit 515: No known stream crossings. If any stream crossings are 

found, crossings structures and locations will be approved by USFS, in consultation with fisheries biologist or 

hydrologist, prior to construction (BMP 14.17). During construction of temporary roads implement BMPs 12.17, 

13.10, 13.11, 13.16, 14.3, and 14.5.

GEOLOGY/KARST: No Concerns

HERITAGE RESOURCES: This unit was investigated per the third amended interagency Programmatic Agreement 

(PA) for historic properties. As specified by the PA, any potential adverse effect on historic properties (if any) was 

mitigated and portions of the Area of Potential Effect will be monitored by a qualified heritage specialist during 

and/or after actual ground disturbance.

Appendix 1 - Unit Cards - 603 Appendix 1
SCENERY: No concerns.

RECREATION: No concerns.

SOILS/WETLANDS: Slopes are estimated to be less than 65 percent based on DEMs. The soils and wetlands are 

suitable for a minimum of partial suspension cable yarding or shovel yarding and should follow R10 BMPs 12.5, 

13.2 and 13.9 and National Core BMPs Plan-2, Veg-2, Veg-4, Veg-5, and Veg-6. Follow shovel yarding guidelines 

outlined in the introductions to unit cards (R10 BMP 13.9 and National Core Veg-4). Partial harvest with groundbased removal and partial suspension thinning will meet soil quality standards.

WILDLIFE: Unit is located in Rio Beaver drainage, one of the north-south linkage between the Honker large OGR 

and the Karta Wilderness. Commercial thinning will enhance wildlife habitat by improving forage availability and 

removing the stand from the stem exclusion phase for the duration of rotation (until it is harvested again).

604 - Big Thorne Project Record of Decision Appendix 1
3012000

3012000

3012600

1.1L.1L

1.1R .12R

1.1R.5R

1.1R.3R

1.1R.2L

1.1L

1.5L.1L

1.1R

1.8L

1.1R.2R

1.6L

1.1R.4R.1L.1L

1.5L

1.4L

1

1

1.7L

1

1.2L

1.1R.1R

1.10R

1.1R.4 R

1.09R

1.1R.4R.1L

1966

38

514

514

515

A

A

B

B

C

C

D

D

E

E

F

F

G

G

H

H

I

I

J

J

10 10

9 9

8 8

7 7

6 6

5 5

4 4

3 3

2 2

1 1

Unit Number 515 ROD VCU: 

0 500

Feet

Past Harvest

(Year Origin)

Unsuitable Soils

Riparian Management

Area

Slope > 72%

Other Ownership

Old Growth Habitat LUD

Recreation River LUD

Scenic River LUD

State Highway

National Forest System Road - Open

National Forest System Road - Stored

Non-National Forest 

System Road

Proposed Reconstructed Road

Proposed System Road 

(reopened Decommissioned)

Proposed Temporary Road 

(reopened Decommissioned)

Proposed System Road

Proposed Temporary

Road

Young Growth

Systematic Strip Thin

Uniform Crown Thin

Old Growth

Helicopter

Shovel or Cable

Partial Cut

Class 1 Stream

Class 2 Stream

Class 3 Stream

Class 4 Stream

Lake

100’ Contour

Eagle Nest Buffer

Legacy

Visual Buffer

Deferred (within

Original Unit

Reconnaissance

Area)

597.2

R:\projects_2010\BigThorneEIS\maps\Unitcards\ROD_YG.mxd 3 June 2013

RR

SR

Young Growth

Appendix 1 - Unit Cards - 605 Appendix 1
Unit 

Number: 516

Alternatives: ROD Total Unit 

Acres: 64.7 

Prescription: Systematic and

Crown Thinning

VCU 

Number: 586

Yarding System:

Cable, Shovel

Net Harvest

Volume 418

(MBF): 

LUD: Modified Landscape, 

Recreation River

Summary of Concerns, Responses, BMPs and Mitigation

SILVICULTURE: Existing Conditions: This unit lies entirely within Stand #5860300504. The stand origination date 

is 1962. This stand has not been pre-commercially thinned. The site potential in this area appears to range from 

medium to high. This unit is in a successional stage of stem exclusion. This unit lies entirely within the Deer Winter 

Range landscape zone.

Silvicultural Objective/Desired Condition (Deer Winter Range):

The management goal of young-growth treatment in this landscape zone is to improve growth, productivity, and 

forest health, while managing for a sustained yield, even flow of an industrial wood supply and improving deer 

winter range conditions in treated stands for the remainder of the rotation.

Silvicultural Prescription: Intermediate Treatment Crown Thinning

Apply crown thinning at approximately stand age 50. Crown thinning should retain at least 50% of the existing 

pretreatment stand basal area at that time. Retain trees in a generally uniform pattern. Skips or thickets may be left 

where logging system difficulties occur, in portions of settings where windthrow risk is expected to be unacceptable 

after thinning like along exposed stand edges or knobs, and in any areas where wildlife dens or nests are found. 

Gaps may occur where cable corridors come together near landings or other areas where extra room is needed to 

facilitate yarding or meet specific wildlife objectives.

Silvicultural Prescription: Systematic Thinning

Apply systematic thinning strips in portions of the unit unsuitable for uniform thinning. Systematic thinning should 

be applied primarily in downhill settings where full suspension cannot be achieved or other areas where uniform 

thinning will result in unacceptable levels of residual tree damage or otherwise is operationally infeasible. 

Systematic thinning should remove all trees within corridors 20 to 60 feet wide depending on operational feasibility, 

visual concerns and /or windthrow potential. Maintain a 60-120 foot distance between cut corridors resulting in at 

least 50% basal area retention. Where visuals are of concern, cut corridors should be kept to approximately 20 feet 

in width pending scenery direction. Although parallel strips are likely to be most common, there are options for fan 

shapes, depending on landing/road locations.

The treatments being proposed are based on the analysis of current data for this stand projected forward in time 

using growth modeling. Marking guidelines covering the specifics of the treatment, such as species to favor for 

retention will be developed at the time of treatment.

TIMBER/YARDING: Shovel settings yard to the Kasaan road and proposed temporary road. Cable setting yard to 

the Kasaan road and the proposed temporary road accessing Unit 370. 

ENGINEERING/ROADS: Unit is accessed by the proposed temporary road accessing Unit 370 and proposed 

temporary roads, totaling 2,700 feet, constructed over decommissioned road bed. See Unit 370 unit card for 

information on Unit 370 temporary road.

BOTANY: The proposed thinning overlaps with a portion of a lesser round-leaved orchid population, with seven 

known plants. A remaining portion of the population is within the indirect effects area for the unit. To the extent 

feasible, minimize direct effects in the vicinity of known plants. 

INVASIVE SPECIES: An infestation of orange hawkweed is known along the existing road, adjacent to the 

proposed thinning. Monitoring is recommended for this infestation to ensure that it does not spread as a result of 

project activities.

FISHERIES: Streams drain to Thorne Bay. 

Stream#: Lake 1 Class: I Flagging: B/W C-Type: L Concerns: none 

Buffer (RMA): Class I for Lake 1 greater of 100 horizontal feet or to the extent of flood plain, riparian vegetation or 

soils, riparian associated wetland fens, or height of one site potential tree.

Alternatives: ROD Buffer (RAW): no review needed Protection: Category A

Stream#: A Class: I, II Flagging: B/W C-Type: MMS, HCM, HCO

606 - Big Thorne Project Record of Decision Appendix 1
Concerns: blowdown

Buffer (RMA): Class I for MMS greater of 120 feet, flood plain, riparian vegetation or soils, or riparian associated 

wetland fens. Class I and II for HCM and HCO greater of 100 feet or to the top of the side-slope break.

Alternatives: ROD Buffer (RAW): no review needed Protection: Category A

Stream#: A.2R Class: I, IV Flagging: B/W, G/W C-Type: HCL, HCO Concerns: none

Buffer (RMA): Class I and II for HCL greater of 100 feet or to the top of the side-slope break. 

Alternatives: ROD Buffer (RAW): no review needed Protection: Category A and C

Stream#: A.2R.1R Class: II, IV Flagging: B/W, G/W C-Type: HCL, HCO Concerns: none

Buffer (RMA): Class II for HCL greater of 100 feet or to the top of the side-slope break. 

Alternatives: ROD Buffer (RAW): no review needed Protection: Category A and C

Stream#: A.2R.2L Class: II, IV Flagging: B/W, G/W C-Type: HCO Concerns: none

Buffer (RMA): Class II for HCO greater of 100 feet or to the top of the side-slope break. 

Alternatives: ROD Buffer (RAW): no review needed Protection: Category A and C

Stream#: A.3R Class: II, IV Flagging: B/W, G/W C-Type: HCL, HCO Concerns: none

Buffer (RMA): Class II for HCL greater of 100 feet or to the top of the side-slope break. 

Alternatives: ROD Buffer (RAW): no review needed Protection: Category A and C

Stream#: 10 Class: I Flagging: B/W C-Type: PAS Concerns: none

Buffer (RMA): Class I for PAS greater of 100 feet, flood plain, riparian vegetation or soils, or riparian associated 

wetland fens. 

Alternatives: ROD Buffer (RAW): no review needed Protection: Category A

Stream#: 1 Class: I, II Flagging: B/W C-Type: PAS, MMS, PAB, HCM, HCO 

Concerns: blowdown

Buffer (RMA): Class I greater of 100 feet (for PAS and PAB) or 120 feet (for MMS), flood plain, riparian 

vegetation or soils, or riparian associated wetland fens. Class II for HCM and HCO greater of 100 feet or to the top 

of the side-slope break.

Alternatives: ROD Buffer (RAW): no review needed Protection: Category A

Stream#: 1.2L Class: I, III, IV Flagging: B/W, O/W, G/W C-Type: MMO, HCM, HCO 

Concerns: none

Buffer (RMA): Class I for MMO greater of 120 feet, flood plain, riparian vegetation or soils, or riparian associated 

wetland fens. Class III HCM to the top of the side-slope break. 

Alternatives: ROD Buffer (RAW): no review needed Protection: Category A, B and C

All other streams in unit: Class IV Flagging: G/W C-Type: HC and MM 

Concerns: none Buffer (RMA): none Protection: Category C

Temporary road (reopened decommissioned) for Unit 516: No known stream crossings. If any stream crossings are 

found, crossings structures and locations will be approved by USFS, in consultation with fisheries biologist or 

hydrologist, prior to construction (BMP 14.17). During construction of temporary roads implement BMPs 12.17, 

13.10, 13.11, 13.16, 14.3, and 14.5.

GEOLOGY/KARST: No Concerns

HERITAGE RESOURCES: This unit was investigated per the third amended interagency Programmatic Agreement 

(PA) for historic properties. As specified by the PA, any potential adverse effect on historic properties (if any) was 

mitigated and portions of the Area of Potential Effect will be monitored by a qualified heritage specialist during 

and/or after actual ground disturbance.

SCENERY: Unit is primarily in Low and Very Low SIO, but contains about 20 acres in Moderate. About half of 

unit is in Recreation River LUD but, due to topographic and vegetative screening, it is not likely to be seen from the 

river or estuary.

RECREATION: Thinning operations would occur within the Recreation River LUD and may be heard from the 

river.

Appendix 1 - Unit Cards - 607 Appendix 1
SOILS/WETLANDS: Slopes are less than 50% in most of the unit based on DEM. Slopes over 72% may be present. 

All slopes greater than 72% will be verified prior to implementation. About 1 acre of the unit has mapped debris 

torrents/avalanches. No wetlands have been mapped in the unit. The soils and wetlands are suitable for a minimum 

of partial suspension cable yarding or shovel yarding and should follow R10 BMPs 12.5, 13.2 and 13.9 and National 

Core BMPs Plan-2, Veg-2, Veg-4, Veg-5, and Veg-6. Follow shovel yarding guidelines outlined in the introductions 

to unit cards (R10 BMP 13.9 and National Core Veg-4). Partial harvest with ground-based removal and partial 

suspension thinning will meet soil quality standards.

WILDLIFE: Commercial thinning will enhance wildlife habitat by improving forage availability and removing the 

stand from the stem exclusion phase for the duration of rotation (until it is harvested again).

608 - Big Thorne Project Record of Decision Appendix 1
RR

KASAAN ROAD

2030952

929

A.3R

1

16

A.3R

1.10 L

A.2R 1

13

10

18

17

1 5

A.3 R

A.2R.2L

A.1 R

B.1R

A

A.2R.1R

B

B.2R

1.2L

1.1L

A.1R.1L

1.1L

1.2L

1962

1958

1973

1962

1997

1997 1997

1976

1950

1990

1990

370

370

516

A

A

B

B

C

C

D

D

E

E

F

F

G

G

H

H

I

I

J

J

10 10

9 9

8 8

7 7

6 6

5 5

4 4

3 3

2 2

1 1

Unit Number 516 ROD VCU: 

0 500

Feet

Past Harvest

(Year Origin)

Unsuitable Soils

Riparian Management

Area

Slope > 72%

Other Ownership

Old Growth Habitat LUD

Recreation River LUD

Scenic River LUD

State Highway

National Forest System Road - Open

National Forest System Road - Stored

Non-National Forest 

System Road

Proposed Reconstructed Road

Proposed System Road 

(reopened Decommissioned)

Proposed Temporary Road 

(reopened Decommissioned)

Proposed System Road

Proposed Temporary

Road

Young Growth

Systematic Strip Thin

Uniform Crown Thin

Old Growth

Helicopter

Shovel or Cable

Partial Cut

Class 1 Stream

Class 2 Stream

Class 3 Stream

Class 4 Stream

Lake

100’ Contour

Eagle Nest Buffer

Legacy

Visual Buffer

Deferred (within

Original Unit

Reconnaissance

Area)

586

R:\projects_2010\BigThorneEIS\maps\Unitcards\ROD_YG.mxd 3 June 2013

RR

SR

Young Growth

Appendix 1 - Unit Cards - 609 Appendix 1
Unit 

Number: 517

Alternatives: ROD Total Unit 9.3

Acres: 

Prescription: Crown Thinning

VCU 

Number: 579

Yarding System:

Shovel

Net Harvest

Volume 55

(MBF): 

LUD: Modified Landscape

Summary of Concerns, Responses, BMPs and Mitigation

SILVICULTURE: Existing Conditions: This unit lies mostly within Stand #5790100045, except for approximately 4 

acres in Stand #5790200506. The stand origination date is 1966. The site potential in Stand #5790100045 appears 

to be high, and the site potential in Stand #5790200506 appears to be medium. This unit is in a successional stage of 

stem exclusion. Approximately 0.46 acres in the northeast corner of the unit were previously pre-commercially 

thinned in 2003. This unit lies within the Deer Winter Range landscape zone of the Thorne Bay NW young-growth 

study area.

Silvicultural Objective/Desired Condition (Deer Winter Range):

The management goal of young-growth treatment in this landscape zone is to improve growth, productivity, and 

forest health, while managing for a sustained yield, even flow of an industrial wood supply and improving deer 

winter range conditions in treated stands for the remainder of the rotation.

Silvicultural Prescription: Intermediate Treatment Crown Thinning

Apply crown thinning at approximately stand age 50. Crown thinning should retain at least 50% of the existing 

pretreatment stand basal area at that time. Retain trees in a generally uniform pattern. Skips or thickets may be left 

where logging system difficulties occur, in portions of settings where windthrow risk is expected to be unacceptable 

after thinning like along exposed stand edges or knobs, and in any areas where wildlife dens or nests are found. 

Gaps may occur where cable corridors come together near landings or other areas where extra room is needed to 

facilitate yarding or meet specific wildlife objectives.

The treatments being proposed are based on the analysis of current data for this stand projected forward in time 

using growth modeling. Marking guidelines covering the specifics of the treatment, such as species to favor for 

retention will be developed at the time of treatment.

TIMBER/YARDING: Shovel yarding to NFS road 3015100.

ENGINEERING/ROADS: No proposed road construction or reconstruction.

BOTANY: No Concerns

INVASIVE SPECIES: No Concerns

FISHERIES: Streams are tributaries to Falls Creek. Stream 2 is Falls Creek.

Stream#: 2 Class: I Flagging: B/W C- Type: MCS, MMS Concerns: erosion

Buffer (RMA): Class I for MCS and HCV greater of 100 feet or to the top of side-slope break. Class I for MMS 

greater of 120 feet, flood plain, riparian vegetation or soils, or riparian associated wetland fens. 

Alternatives: ROD Buffer (RAW): no review needed Protection: Category A

Stream#: 2.2L.1R Class: I, II Flagging: B/W C- Type: MMS, HCM, AFH, HCV 

Concerns: erosion, blowdown

Buffer (RMA): Class I for MMS greater of 120 feet, flood plain, riparian vegetation or soils, or riparian associated 

wetland fens. Class I and II for HCM and HCV greater of 100 feet or the top of the side-slope break. Class I for 

AFH greater of 140 feet or active portion of the alluvial fan. 

Alternatives: ROD Buffer (RAW): no review needed Protection: Category A

All other streams in unit: Class IV Flagging: G/W C-Type: HC and MM 

Concerns: none Buffer (RMA): none Protection: Category C

GEOLOGY/KARST: No Concerns

HERITAGE RESOURCES: This unit was investigated per the third amended interagency Programmatic Agreement 

(PA) for historic properties. As specified by the PA, any potential adverse effect on historic properties (if any) was 

mitigated and portions of the Area of Potential Effect will be monitored by a qualified heritage specialist during 

and/or after actual ground disturbance.

SCENERY: No Concerns

RECREATION: No Concerns

610 - Big Thorne Project Record of Decision Appendix 1
SOILS/WETLANDS: Slopes are estimated to be less than 25% based on DEM. A mapped historic (pre-1971) debris 

avalanche occurs in the valley bottom. No wetlands have been mapped in the unit. The soils and wetlands are 

suitable for shovel yarding. Follow shovel yarding guidelines outlined in the introductions to unit cards (R10 BMP 

13.9 and National Core BMPs Plan-2, Veg-2, and Veg-4). Partial harvest with ground-based removal will meet soil 

quality standards.

WILDLIFE: Commercial thinning will enhance wildlife habitat along Gravelly Creek by improving forage 

availability and removing the stand from the stem exclusion phase for the duration of rotation (until it is harvested 

again).

Appendix 1 - Unit Cards - 611 Appendix 1
LAKE A1

3015100

3015105

3017100

3017110

2

2

2.2L.AL

2.3L

2

A

2

1.3R

A

1.2R

3

1.1R

2.4L

2.2L.1R.1L.1

R

2.2L.1R.1R

2.2L. 1R.3L.1R

2.2L.1R.2L

2.2L

2.2L.1R.3L

3

2.2L.1R.1L

2.2L.1R

2.2L.1R

1.1L

1.1R 2.2 R

2.2L.1R

2.2L. 1L.2R

1966

1966

1995

1966

1972

1966

1972

69

119

517

68

A

A

B

B

C

C

D

D

E

E

F

F

G

G

H

H

I

I

J

J

10 10

9 9

8 8

7 7

6 6

5 5

4 4

3 3

2 2

1 1

Unit Number 517 ROD VCU: 

0 500

Feet

Past Harvest

(Year Origin)

Unsuitable Soils

Riparian Management

Area

Slope > 72%

Other Ownership

Old Growth Habitat LUD

Recreation River LUD

Scenic River LUD

State Highway

National Forest System Road - Open

National Forest System Road - Stored

Non-National Forest 

System Road

Proposed Reconstructed Road

Proposed System Road 

(reopened Decommissioned)

Proposed Temporary Road 

(reopened Decommissioned)

Proposed System Road

Proposed Temporary

Road

Young Growth

Systematic Strip Thin

Uniform Crown Thin

Old Growth

Helicopter

Shovel or Cable

Partial Cut

Class 1 Stream

Class 2 Stream

Class 3 Stream

Class 4 Stream

Lake

100’ Contour

Eagle Nest Buffer

Legacy

Visual Buffer

Deferred (within

Original Unit

Reconnaissance

Area)

579

R:\projects_2010\BigThorneEIS\maps\Unitcards\ROD_YG.mxd 3 June 2013

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SR

Young Growth

612 - Big Thorne Project Record of Decision Appendix 1
Unit 

Number: 518

Alternatives: ROD Total Unit 15.7

Acres: 

Prescription: Crown Thinning

VCU 

Number: 579

Yarding System:

Cable

Net Harvest

Volume 92

(MBF):

LUD: Modified Landscape

Summary of Concerns, Responses, BMPs and Mitigation

SILVICULTURE: Existing Conditions: This unit lies entirely within Stand #5790200506. There has been no precommercial thinning within the unit. The site potential appears to be high. This unit is in a successional stage of 

stem exclusion. The stand has an origination date of 1966. Approximately 12 acres of the unit lies within the 

Upland/Mountain Slopes landscape zone. The remaining approximately 3 acres is within the Deer Winter Range 

landscape zone. The unit is located in the Thorne Bay NW young-growth study area.

Silvicultural Objective/Desired Condition (Deer Winter Range):

The management goal of young-growth treatment in this landscape zone is to improve growth, productivity, and 

forest health, while managing for a sustained yield, even flow of an industrial wood supply and improving deer 

winter range conditions in treated stands for the remainder of the rotation.

Silvicultural Objective/Desired Condition (Uplands/Mountain Slopes):

The management goal of young-growth treatments in this landscape zone is to manage for a sustained yield, even 

flow of an industrial wood supply, while meeting multiple resource objectives, wherever possible. Treatments 

should improve growth and productivity, improve forest health, and promote forest stand conditions that will 

provide a diverse array of marketable forest products.

Silvicultural Prescription: Intermediate Treatment Crown Thinning

Apply crown thinning at approximately stand age 50. Crown thinning should retain at least 50% of the existing 

pretreatment stand basal area at that time. Retain trees in a generally uniform pattern. Skips or thickets may be left 

where logging system difficulties occur, in portions of settings where windthrow risk is expected to be unacceptable 

after thinning like along exposed stand edges or knobs, and in any areas where wildlife dens or nests are found. 

Gaps may occur where cable corridors come together near landings or other areas where extra room is needed to 

facilitate yarding or meet specific wildlife objectives.

The treatments being proposed are based on the analysis of current data for this stand projected forward in time 

using growth modeling. Marking guidelines covering the specifics of the treatment, such as species to favor for 

retention will be developed at the time of treatment.

TIMBER/YARDING: Cable yarding to NFS road 3017100.

ENGINEERING/ROADS: No proposed road construction or reconstruction.

BOTANY: No Concerns

INVASIVE SPECIES: No Concerns

FISHERIES: Streams are tributaries to Gravelly Creek. 

Stream#: 1.3L Class: II Flagging: B/W C- Type: HCD Concerns: erosion

Buffer (RMA): Class II for HCD greater of 100 feet or the top of the side-slope break. 

Alternatives: ROD Buffer (RAW): no review needed Protection: Category A

Stream#: 1.3L.2L Class: III, IV Flagging: O/W, G/W C- Type: HCD, HCM, HCO 

Concerns: erosion. blowdown

Buffer (RMA): Class III for HCD and HCM to the top of the side-slope break. 

Alternatives: ROD Buffer (RAW): no review needed Protection: Category B and C

GEOLOGY/KARST: No Concerns

HERITAGE RESOURCES: This unit was investigated per the third amended interagency Programmatic Agreement 

(PA) for historic properties. As specified by the PA, any potential adverse effect on historic properties (if any) was 

mitigated and portions of the Area of Potential Effect will be monitored by a qualified heritage specialist during 

and/or after actual ground disturbance.

SCENERY: No Concerns

RECREATION: No Concerns

SOILS/WETLANDS: Slopes are estimated to be less than 65% based on DEM. There are no slopes greater than 

Appendix 1 - Unit Cards - 613 Appendix 1
72% mapped in the unit. A mapped debris avalanche (from 1982) initiates near the southern boundary. No wetlands 

have been mapped in the unit. The soils and wetlands are suitable for a minimum of partial suspension cable yarding 

and should follow R10 BMPs 12.5, 13.2 and 13.9 and National Core BMPs Plan-2, Veg-2, Veg-5, and Veg-6. 

Partial harvest with ground-based removal and partial suspension thinning will meet soil quality standards.

WILDLIFE: Commercial thinning will enhance wildlife habitat along Gravelly Creek by improving forage 

availability and removing the stand from the stem exclusion phase for the duration of rotation (until it is harvested 

again).

614 - Big Thorne Project Record of Decision Appendix 1
3017100

3017160

3017100

3017000

3017200

1.3L.1 L

1.3L

2.1R

1.3L.2L

1

2

1.3L

2

1963

1971

1966

1995

1995

1972

120

518

519

A

A

B

B

C

C

D

D

E

E

F

F

G

G

H

H

I

I

J

J

10 10

9 9

8 8

7 7

6 6

5 5

4 4

3 3

2 2

1 1

Unit Number 518 ROD VCU: 

0 500

Feet

Past Harvest

(Year Origin)

Unsuitable Soils

Riparian Management

Area

Slope > 72%

Other Ownership

Old Growth Habitat LUD

Recreation River LUD

Scenic River LUD

State Highway

National Forest System Road - Open

National Forest System Road - Stored

Non-National Forest 

System Road

Proposed Reconstructed Road

Proposed System Road 

(reopened Decommissioned)

Proposed Temporary Road 

(reopened Decommissioned)

Proposed System Road

Proposed Temporary

Road

Young Growth

Systematic Strip Thin

Uniform Crown Thin

Old Growth

Helicopter

Shovel or Cable

Partial Cut

Class 1 Stream

Class 2 Stream

Class 3 Stream

Class 4 Stream

Lake

100’ Contour

Eagle Nest Buffer

Legacy

Visual Buffer

Deferred (within

Original Unit

Reconnaissance

Area)

579

R:\projects_2010\BigThorneEIS\maps\Unitcards\ROD_YG.mxd 3 June 2013

RR

SR

Young Growth

Appendix 1 - Unit Cards - 615 Appendix 1
Unit 

Number: 519

Alternatives: ROD Total Unit 32.8

Acres: 

Prescription: Crown Thinning

VCU 

Number: 579

Yarding System:

Cable, Shovel

Net Harvest

Volume 192

(MBF): 

LUD: Modified Landscape

Summary of Concerns, Responses, BMPs and Mitigation

SILVICULTURE: Existing Conditions: This unit lies entirely within Stand #5790200506. There has been no precommercial thinning within the unit. The site potential appears to be high. The stand has an origination date of 1966. 

The unit is in a successional stage of stem exclusion. This unit lies within the Deer Winter Range landscape zone, 

and is located in the Thorne Bay NW young- growth study area.

Silvicultural Objective/Desired Condition (Deer Winter Range):

The management goal of young-growth treatment in this landscape zone is to improve growth, productivity, and 

forest health, while managing for a sustained yield, even flow of an industrial wood supply and improving deer 

winter range conditions in treated stands for the remainder of the rotation.

Silvicultural Prescription: Intermediate Treatment Crown Thinning

Apply crown thinning at approximately stand age 50. Crown thinning should retain at least 50% of the existing 

pretreatment stand basal area at that time. Retain trees in a generally uniform pattern. Skips or thickets may be left 

where logging system difficulties occur, in portions of settings where windthrow risk is expected to be unacceptable 

after thinning like along exposed stand edges or knobs, and in any areas where wildlife dens or nests are found. 

Gaps may occur where cable corridors come together near landings or other areas where extra room is needed to 

facilitate yarding or meet specific wildlife objectives.

The treatments being proposed are based on the analysis of current data for this stand projected forward in time 

using growth modeling. Marking guidelines covering the specifics of the treatment, such as species to favor for 

retention will be developed at the time of treatment.

TIMBER/YARDING: Shovel settings yard to the proposed temporary road and NFS road 3017100. Cable settings 

yard to the proposed temporary road.

ENGINEERING/ROADS: Unit is accessed by a proposed temporary road of 1,000 feet, constructed over 

decommissioned road bed.

BOTANY: No Concerns

INVASIVE SPECIES: No Concerns

FISHERIES: Streams are tributaries to Gravelly Creek. Stream 1 is Gravelly Creek.

Stream#: 1 Class: I Flagging: B/W C-Type: FPM Concerns: none

Buffer (RMA): Class I for FPM greater of 130 feet, flood plain, riparian vegetation or soils, or riparian associated 

wetland fens. 

Alternatives: ROD Buffer (RAW): no review needed Protection: Category A

Stream#: 1.1L Class: IV Flagging: O/W, G/W C-Type: HCO Concerns: erosion

Buffer (RMA):none Buffer (RAW): no review needed Protection: Category B and C

Stream#: 1.2L Class: II, III Flagging: B/W, O/W C-Type: HCM Concerns: none

Buffer (RMA): Class II for HCO greater of 100 feet or to the top of the side-slope break. Class III for HCM to the 

top of the side-slope break. 

Alternatives: ROD Buffer (RAW): no review needed Protection: Category A and B 

Stream#: 1.3L Class: II Flagging: B/W C-Type: HCM, MMS Concerns: erosion

Buffer (RMA): Class II for HCM greater of 100 feet or to the top of the side-slope break. Class II for MMS greater 

of 120 feet, flood plain, riparian vegetation or soils, or riparian associated wetland fens.

Alternatives: ROD Buffer (RAW): no review needed Protection: Category A

Stream#: 1.3L.1L Class: II, IV Flagging: B/W, G/W C-Type: HCO Concerns: none

Buffer (RMA): Class II for HCO greater of 100 feet or the top of the side-slope break. 

Alternatives: ROD Buffer (RAW): no review needed Protection: Category A and C

616 - Big Thorne Project Record of Decision Appendix 1
Temporary road (reopened decommissioned) for Unit 519: One Class III stream crossings. Crossings structures and 

locations will be approved by USFS, in consultation with fisheries biologist or hydrologist, prior to construction 

(BMP 14.17). During construction of temporary roads implement BMPs 12.17, 13.10, 13.11, 13.16, 14.3, and 14.5.

GEOLOGY/KARST: No Concerns

HERITAGE RESOURCES: This unit was investigated per the third amended interagency Programmatic Agreement 

(PA) for historic properties. As specified by the PA, any potential adverse effect on historic properties (if any) was 

mitigated and portions of the Area of Potential Effect will be monitored by a qualified heritage specialist during 

and/or after actual ground disturbance.

SCENERY: No Concerns

RECREATION: No Concerns

SOILS/WETLANDS: Slopes are less than 40% based on DEM. There are no slopes greater than 72% mapped in the 

unit. No wetlands have been mapped in the unit. The soils and wetlands are suitable for a minimum of partial 

suspension cable yarding or shovel yarding and should follow R10 BMPs 12.5, 13.2 and 13.9 and National Core 

BMPs Plan-2, Veg-2, Veg-4, Veg-5, and Veg-6. Follow shovel yarding guidelines outlined in the introductions to 

unit cards (R10 BMP 13.9 and National Core Veg-4). Partial harvest with ground-based removal and partial 

suspension thinning will meet soil quality standards.

WILDLIFE: Commercial thinning will enhance wildlife habitat along Gravelly Creek by improving forage 

availability and removing the stand from the stem exclusion phase for the duration of rotation (until it is harvested 

again).

Appendix 1 - Unit Cards - 617 Appendix 1
3017100

3017000

3017110

3000100

3017100

1.3L

1.3L.1 L

1.1L

1.3L.2L

1

1.2L

1.3L

1963

1971

1966

1995

1972

120

518

519

A

A

B

B

C

C

D

D

E

E

F

F

G

G

H

H

I

I

J

J

10 10

9 9

8 8

7 7

6 6

5 5

4 4

3 3

2 2

1 1

Unit Number 519 ROD VCU: 

0 500

Feet

Past Harvest

(Year Origin)

Unsuitable Soils

Riparian Management

Area

Slope > 72%

Other Ownership

Old Growth Habitat LUD

Recreation River LUD

Scenic River LUD

State Highway

National Forest System Road - Open

National Forest System Road - Stored

Non-National Forest 

System Road

Proposed Reconstructed Road

Proposed System Road 

(reopened Decommissioned)

Proposed Temporary Road 

(reopened Decommissioned)

Proposed System Road

Proposed Temporary

Road

Young Growth

Systematic Strip Thin

Uniform Crown Thin

Old Growth

Helicopter

Shovel or Cable

Partial Cut

Class 1 Stream

Class 2 Stream

Class 3 Stream

Class 4 Stream

Lake

100’ Contour

Eagle Nest Buffer

Legacy

Visual Buffer

Deferred (within

Original Unit

Reconnaissance

Area)

579

R:\projects_2010\BigThorneEIS\maps\Unitcards\ROD_YG.mxd 3 June 2013

RR

SR

Young Growth

618 - Big Thorne Project Record of Decision Appendix 1
Unit 

Number: 520

Alternatives: ROD Total Unit 38.4

Acres: 

Prescription: Crown Thinning

VCU 

Number: 586

Yarding System:

Cable, Shovel

Net Harvest

Volume 224

(MBF): 

LUD: Modified Landscape

Summary of Concerns, Responses, BMPs and Mitigation

SILVICULTURE: Existing Conditions: This unit lies entirely within Stand #5860100509. Approximately 59% of 

this stand was previously pre- commercially thinned. This was primarily completed in 1979 and 1984. The site 

potential appears to be medium. The stand has an origination date of 1963. The unit is in a successional stage of 

stem exclusion. This unit lies within the Deer Winter Range landscape zone, and is located in the Thorne Bay NW 

young-growth study area.

Silvicultural Objective/Desired Condition (Deer Winter Range):

The management goal of young-growth treatment in this landscape zone is to improve growth, productivity, and 

forest health, while managing for a sustained yield, even flow of an industrial wood supply and improving deer 

winter range conditions in treated stands for the remainder of the rotation.

Silvicultural Prescription: Intermediate Treatment Crown Thinning

Apply crown thinning at approximately stand age 50. Crown thinning should retain at least 50% of the existing 

pretreatment stand basal area at that time. Retain trees in a generally uniform pattern. Skips or thickets may be left 

where logging system difficulties occur, in portions of settings where windthrow risk is expected to be unacceptable 

after thinning like along exposed stand edges or knobs, and in any areas where wildlife dens or nests are found. 

Gaps may occur where cable corridors come together near landings or other areas where extra room is needed to 

facilitate yarding or meet specific wildlife objectives.

The treatments being proposed are based on the analysis of current data for this stand projected forward in time 

using growth modeling. Marking guidelines covering the specifics of the treatment, such as species to favor for 

retention will be developed at the time of treatment.

TIMBER/YARDING: Shovel and cable yarding to the proposed temporary road.

ENGINEERING/ROADS: Unit is accessed by reconstruction of the NFS road 3018125, totaling 2,700 feet, the first 

1,600 feet of this road will be reconstructed across non- National Forest System lands; and a proposed temporary 

road of 750 feet, constructed over decommissioned road bed. Map incorrectly displays the road as proposed 

temporary, and a portion should be shown as reconstruction. 

BOTANY: No Concerns

INVASIVE SPECIES: Orange hawkweed is known along the existing road. Monitoring is recommended to ensure 

that it does not spread as a result of project activities. 

FISHERIES: Streams are tributaries to Deer Creek. Stream 1 is Deer Creek.

Stream#: 1 Class: II Flagging: B/W C-Type: MMS Concerns: none

Buffer (RMA): Class II for MMS greater of 120 feet, flood plain, riparian vegetation or soils, or riparian associated 

wetland fens.

Alternatives: ROD Buffer (RAW): no review needed Protection: Category A

Stream#: 1.1R Class: II Flagging: B/W C-Type: MCS, PAB Concerns: erosion

Buffer (RMA): Class II for MCS greater of 100 feet or to the top of the side-slope break. Class II for PAB greater of 

100 feet, flood plain, riparian vegetation or soils, or riparian associated wetland fens.

Alternatives: ROD Buffer (RAW): no review needed Protection: Category A

Stream#: 1.1R.1L Class: II Flagging: B/W C-Type: PAB Concerns: none

Buffer (RMA): Class II for PAB greater of 100 feet, flood plain, riparian vegetation or soils, or riparian associated 

wetland fens.

Alternatives: ROD Buffer (RAW): no review needed Protection: Category A

Stream#: 1.1R.2L Class: II Flagging: B/W C-Type: MMO Concerns: none

Buffer (RMA): Class II for MMO greater of 120 feet, flood plain, riparian vegetation or soils, or riparian associated 

wetland fens.

Appendix 1 - Unit Cards - 619 Appendix 1
Alternatives: ROD Buffer (RAW): no review needed Protection: Category A

Stream#: 1.1R.3L Class: II Flagging: B/W C-Type: PAB Concerns: none

Buffer (RMA): Class II for PAB greater of 100 feet, flood plain, riparian vegetation or soils, or riparian associated 

wetland fens.

Alternatives: ROD Buffer (RAW): no review needed Protection: Category A

Temporary roads (reopened decommissioned) for Unit 520: No known stream crossings. If any stream crossings 

are found, crossings structures and locations will be approved by USFS, in consultation with fisheries biologist or 

hydrologist, prior to construction (BMP 14.17). During construction of temporary roads implement BMPs 12.17, 

13.10, 13.11, 13.16, 14.3, and 14.5.

GEOLOGY/KARST: No Concerns

HERITAGE RESOURCES: This unit was investigated per the third amended interagency Programmatic Agreement 

(PA) for historic properties. As specified by the PA, any potential adverse effect on historic properties (if any) was 

mitigated and portions of the Area of Potential Effect will be monitored by a qualified heritage specialist during 

and/or after actual ground disturbance.

SCENERY: No Concerns

RECREATION: No Concerns

SOILS/WETLANDS: Slopes in most of the unit are below 35%. Slopes over 72% may be present. All slopes greater 

than 72% will be verified prior to implementation. The entire unit is wetland, including about 36 acres of forested 

wetland/emergent short sedge complex, 5.1 acres, and about 1/4 acre of moss muskeg based on GIS analysis (R10 

BMP 12.5 and National Core BMPs AqEco-2 and AqEco-4). The soils and wetlands are suitable for a minimum of 

partial suspension cable yarding or shovel yarding and should follow R10 BMPs 12.5, 13.2 and 13.9 and National 

Core BMPs Plan-2, Veg-2, Veg-4, Veg-5, and Veg-6. Follow shovel yarding guidelines outlined in the introductions 

to unit cards (R10 BMP 13.9 and National Core Veg-4). Partial harvest with ground-based removal and partial 

suspension thinning will meet soil quality standards.

WILDLIFE: Commercial thinning will enhance wildlife habitat near Deer Creek by improving forage availability 

and removing the stand from the stem exclusion phase for the duration of rotation (until it is harvested again).

620 - Big Thorne Project Record of Decision Appendix 1
3000120

3000127 3000120

3018050

3018000

3018100

1 1. R

1.3L.2L.1l L

1.1R

1. 1R. 2L

1.3L

1.1R

1.3L

1.1R.3R

1 3. L.1

1.3L.2L.1L

1.1R.1R

1.3L.1L

1

1.1R

1.1R.1L

1.1L

1.1R

1.3L.2L

1.1R.2R

1963

1999

1973

1999

1963

1999

1963

133

520

521

531

131

130

A

A

B

B

C

C

D

D

E

E

F

F

G

G

H

H

I

I

J

J

10 10

9 9

8 8

7 7

6 6

5 5

4 4

3 3

2 2

1 1

Unit Number 520 ROD VCU: 

0 500

Feet

Past Harvest

(Year Origin)

Unsuitable Soils

Riparian Management

Area

Slope > 72%

Other Ownership

Old Growth Habitat LUD

Recreation River LUD

Scenic River LUD

State Highway

National Forest System Road - Open

National Forest System Road - Stored

Non-National Forest 

System Road

Proposed Reconstructed Road

Proposed System Road 

(reopened Decommissioned)

Proposed Temporary Road 

(reopened Decommissioned)

Proposed System Road

Proposed Temporary

Road

Young Growth

Systematic Strip Thin

Uniform Crown Thin

Old Growth

Helicopter

Shovel or Cable

Partial Cut

Class 1 Stream

Class 2 Stream

Class 3 Stream

Class 4 Stream

Lake

100’ Contour

Eagle Nest Buffer

Legacy

Visual Buffer

Deferred (within

Original Unit

Reconnaissance

Area)

586

R:\projects_2010\BigThorneEIS\maps\Unitcards\ROD_YG.mxd 3 June 2013

RR

SR

Young Growth

Appendix 1 - Unit Cards - 621 Appendix 1
Unit 

Number: 521

Alternatives: ROD Total Unit 41.9

Acres: 

Prescription: Crown Thinning

VCU 

Number: 586

Yarding System:

Cable, Shovel

Net Harvest

Volume 245

(MBF): 

LUD: Modified Landscape

Summary of Concerns, Responses, BMPs and Mitigation

SILVICULTURE: Existing Conditions: This unit lies entirely within Stand #5860100509. Approximately 59% of 

this stand was previously pre- commercially thinned. This was primarily completed in 1979 and 1984. The site 

potential appears to range from medium to high. The stand has an origination date of 1963. The unit is in a 

successional stage of stem exclusion, but has five wildlife gaps (roughly 1/10 ac) partially or wholly within north 

end of unit. This unit lies within the Deer Winter Range landscape zone, and is located in the Thorne Bay NW 

young-growth study area.

Silvicultural Objective/Desired Condition (Deer Winter Range):

The management goal of young-growth treatment in this landscape zone is to improve growth, productivity, and 

forest health, while managing for a sustained yield, even flow of an industrial wood supply and improving deer 

winter range conditions in treated stands for the remainder of the rotation.

Silvicultural Prescription: Intermediate Treatment Crown Thinning

Apply crown thinning at approximately stand age 50. Crown thinning should retain at least 50% of the existing 

pretreatment stand basal area at that time. Retain trees in a generally uniform pattern. Skips or thickets may be left 

where logging system difficulties occur, in portions of settings where windthrow risk is expected to be unacceptable 

after thinning like along exposed stand edges or knobs, and in any areas where wildlife dens or nests are found. 

Gaps may occur where cable corridors come together near landings or other areas where extra room is needed to 

facilitate yarding or meet specific wildlife objectives.

The treatments being proposed are based on the analysis of current data for this stand projected forward in time 

using growth modeling. Marking guidelines covering the specifics of the treatment, such as species to favor for 

retention will be developed at the time of treatment.

TIMBER/YARDING: Cable settings yard to the northern proposed temporary road. Shovel yarding to the southern

proposed temporary road and NFS road 3018000.

ENGINEERING/ROADS: Unit is accessed by reconstruction of NFS roads 3018100 and 3018110, totaling 6,700 

feet and two proposed temporary roads, totaling 2,100 feet, constructed over decommissioned road bed. See road 

cards for information on NFS roads. 

BOTANY: No Concerns

INVASIVE SPECIES: An infestation of orange hawkweed is known along the existing road, just south of the 

proposed unit. Monitoring is recommended to ensure that the infestation is not spread as a result of the project 

activities.

FISHERIES: Streams are tributaries to Deer Creek. Stream 1 is Deer Creek.

Stream#: 1 Class: II Flagging: B/W C-Type: MMS, PAS 

Concerns: yarding through RMA

Buffer (RMA): Class II greater of 120 feet (for MMS) or 100 feet (for PAS), flood plain, riparian vegetation or soils, 

or riparian associated wetland fens.

Alternatives: ROD Buffer (RAW): no review needed Protection: Category A

Stream#: 1.1R Class: II Flagging: B/W C-Type: MMS Concerns: none

Buffer (RMA): Class II for MMS greater of 120 feet, flood plain, riparian vegetation or soils, or riparian associated 

wetland fens.

Alternatives: ROD Buffer (RAW): no review needed Protection: Category A

Stream#: 1.1R.1L Class: II, IV Flagging: B/W, G/W C-Type: MMS, PAB, HCO, MMO 

Concerns: none

Buffer (RMA): Class II greater of 120 feet (for MMS) or 100 feet (for PAB), flood plain, riparian vegetation or 

soils, or riparian associated wetland fens. Class II for HCO greater of 100 feet or to the top of the side-slope break.

Alternatives: ROD Buffer (RAW): no review needed Protection: Category A and C

622 - Big Thorne Project Record of Decision Appendix 1
Temporary roads (reopened decommissioned) for Unit 521: One Class II stream crossings. Crossing structures and 

locations will be approved by USFS, in consultation with fisheries biologist or hydrologist, prior to construction 

(BMP 14.17). The Class II crossing will be designed to provide fish passage, using a log culvert or bridge, will be 

installed under current timing constrictions and concurrence from the State will be solicited prior to starting the 

work. During construction of temporary roads implement BMPs 12.17, 13.10, 13.11, 13.16, 14.3, and 14.5. 

Minimize channel disturbance during road construction (BMP 14.14). Control erosion and disperse runoff away 

from streams (BMP 14.8). Upon completion of unit harvest, decommission road, restore natural drainage patterns 

by removing road fill from channels and installing water bar as necessary (BMP 13.16). Ensure natural drainage 

across road is restored beyond fish stream crossing prior to temporary structure removal (BMP 14.20). Seed and 

fertilize disturbed soil adjacent to streams (BMP 12.17).

GEOLOGY/KARST: No Concerns

HERITAGE RESOURCES: This unit was investigated per the third amended interagency Programmatic Agreement 

(PA) for historic properties. As specified by the PA, any potential adverse effect on historic properties (if any) was 

mitigated and portions of the Area of Potential Effect will be monitored by a qualified heritage specialist during 

and/or after actual ground disturbance.

SCENERY: No Concerns

RECREATION: No Concerns

SOILS/WETLANDS: Slopes are estimated to be less than 70% based on DEM. The entire unit is wetland including 

27 acres of emergent sedge/forested wetland complex, 14 acres of forested wetland, and about 3/4 acre of moss 

muskeg based on GIS analysis (R10 BMP 12.5 and National Core BMPs AqEco-2 and AqEco-4). The soils and 

wetlands are suitable for a minimum of partial suspension cable yarding or shovel yarding and should follow R10 

BMPs 12.5, 13.2 and 13.9 and National Core BMPs Plan-2, Veg-2, Veg-4, Veg-5, and Veg-6. Follow shovel 

yarding guidelines outlined in the introductions to unit cards (R10 BMP 13.9 and National Core Veg-4). Partial 

harvest with ground-based removal and partial suspension thinning will meet soil quality standards.

WILDLIFE: Commercial thinning will enhance wildlife habitat near Deer Creek by improving forage availability 

and removing the stand from the stem exclusion phase for the duration of rotation (until it is harvested again).

Appendix 1 - Unit Cards - 623 Appendix 1
3000120

3018000

3018100

3018110

3018130

1R

1.1R.3R

3

1.1L

1.1L.1A L

1.1L

1.1R

1.1R.1L

2

TRIB

1.1R.2R

1.1L.1L

1.1R.2 L

1

TRIB

1.1R

1963

1963

1973

1999

520

521

522

531

131

A

A

B

B

C

C

D

D

E

E

F

F

G

G

H

H

I

I

J

J

10 10

9 9

8 8

7 7

6 6

5 5

4 4

3 3

2 2

1 1

Unit Number 521 ROD VCU: 

0 500

Feet

Past Harvest

(Year Origin)

Unsuitable Soils

Riparian Management

Area

Slope > 72%

Other Ownership

Old Growth Habitat LUD

Recreation River LUD

Scenic River LUD

State Highway

National Forest System Road - Open

National Forest System Road - Stored

Non-National Forest 

System Road

Proposed Reconstructed Road

Proposed System Road 

(reopened Decommissioned)

Proposed Temporary Road 

(reopened Decommissioned)

Proposed System Road

Proposed Temporary

Road

Young Growth

Systematic Strip Thin

Uniform Crown Thin

Old Growth

Helicopter

Shovel or Cable

Partial Cut

Class 1 Stream

Class 2 Stream

Class 3 Stream

Class 4 Stream

Lake

100’ Contour

Eagle Nest Buffer

Legacy

Visual Buffer

Deferred (within

Original Unit

Reconnaissance

Area)

586

R:\projects_2010\BigThorneEIS\maps\Unitcards\ROD_YG.mxd 3 June 2013

RR

SR

Young Growth

624 - Big Thorne Project Record of Decision Appendix 1
Unit 

Number: 522

Alternatives: ROD Total Unit 56.6

Acres:

Prescription: Systematic and

Crown Thinning

VCU 

Number: 579, 586

Yarding System:

Cable, Shovel

Net Harvest

Volume 355

(MBF): 

LUD: Modified Landscape

Summary of Concerns, Responses, BMPs and Mitigation

SILVICULTURE: Existing Conditions: This unit lies primarily within Stand #5860100509. Approximately 59% of 

this stand was previously pre- commercially thinned. This was primarily completed in 1979 and 1984. The stand 

origination date is 1963. Approximately 1 acre of the unit lies within Stand #5790200516. This stand has not been 

previously pre-commercially thinned. This stand has a stand origination date of 1962. The site potential in this unit 

appears to range from medium to high. This unit is in a successional stage of stem exclusion. Approximately 61 

acres of this unit lies within the Deer Winter Range landscape zone. The remaining approximately 20 acres is in the 

Uplands/Mountain Slopes landscape zone. This unit is located in the Thorne Bay NW young-growth study area.

Silvicultural Objective/Desired Condition (Deer Winter Range):

The management goal of young-growth treatment in this landscape zone is to improve growth, productivity, and 

forest health, while managing for a sustained yield, even flow of an industrial wood supply and improving deer 

winter range conditions in treated stands for the remainder of the rotation.

Silvicultural Objective/Desired Condition (Uplands/Mountain Slopes):

The management goal of young-growth treatments in this landscape zone is to manage for a sustained yield, even 

flow of an industrial wood supply, while meeting multiple resource objectives, wherever possible. Treatments 

should improve growth and productivity, improve forest health, and promote forest stand conditions that will 

provide a diverse array of marketable forest products.

Silvicultural Prescription: Intermediate Treatment Crown Thinning

Apply crown thinning at approximately stand age 50. Crown thinning should retain at least 50% of the existing 

pretreatment stand basal area at that time. Retain trees in a generally uniform pattern. Skips or thickets may be left 

where logging system difficulties occur, in portions of settings where windthrow risk is expected to be unacceptable 

after thinning like along exposed stand edges or knobs, and in any areas where wildlife dens or nests are found. 

Gaps may occur where cable corridors come together near landings or other areas where extra room is needed to 

facilitate yarding or meet specific wildlife objectives.

Silvicultural Prescription: Systematic Thinning

Apply systematic thinning strips in portions of the unit unsuitable for uniform thinning. Systematic thinning should 

be applied primarily in downhill settings where full suspension cannot be achieved or other areas where uniform 

thinning will result in unacceptable levels of residual tree damage or otherwise is operationally infeasible. 

Systematic thinning should remove all trees within corridors 20 to 60 feet wide depending on operational feasibility, 

visual concerns and /or windthrow potential. Maintain a 60-120 foot distance between cut corridors resulting in at 

least a 50% basal area retention. Where visuals are of concern, cut corridors should be kept to approximately 20 feet 

in width pending scenery direction. Although parallel strips are likely to be most common, there are options for fan 

shapes, depending on landing/road locations.

The treatments being proposed are based on the analysis of current data for this stand projected forward in time 

using growth modeling. Marking guidelines covering the specifics of the treatment, such as species to favor for 

retention will be developed at the time of treatment.

TIMBER/YARDING: Shovel settings yard to the proposed temporary roads and FS roads 3018130 and 3000120. 

Cable settings yard to the proposed temporary roads and NFS road 3018130. 

ENGINEERING/ROADS: Unit is accessed by reconstruction of NFS road 3018130, totaling 4,200 feet and 

proposed temporary roads, totaling 2,400 feet, constructed over decommissioned road bed. See road card for 

information on NFS road.

BOTANY: No Concerns

INVASIVE SPECIES: No Concerns

FISHERIES: Streams are tributaries to Deer Creek 

Stream#: 1.1L Class: II, III, IV Flagging: B/W, O/W, G/W C-Type: MMS, HCO, HCD, MMO 

Appendix 1 - Unit Cards - 625 Appendix 1
Concerns: none

Buffer (RMA): Class II for MMS greater of 120 feet, flood plain, riparian vegetation or soils, or riparian associated 

wetland fens. Class II for HCO greater of 100 feet or to the top of the side-slope break. Class III for HCD to the top 

of the side-slope break. 

Alternatives: ROD Buffer (RAW): no review needed Protection: Category A, B and C

Stream#: 2 Class: II Flagging: B/W C-Type: PAO, HCO Concerns: none 

Buffer (RMA): Class II for PAO greater of 100 feet, flood plain, riparian vegetation or soils, or riparian associated 

wetland fens. Class II for HCO greater of 100 feet or to the top of the side-slope break. 

Alternatives: ROD Buffer (RAW): no review needed Protection: Category A 

Stream#: 3 Class: II, IV Flagging: B/W, G/W C-Type: MMO, HCO Concerns: none

Buffer (RMA): Class II for MMO greater of 120 feet, flood plain, riparian vegetation or soils, or riparian associated 

wetland fens. 

Alternatives: ROD Buffer (RAW): no review needed Protection: Category A and C 

Stream#: 4 Class: II, IV Flagging: B/W, G/W C-Type: PAO, HCO Concerns: none

Buffer (RMA): Class II for PAO greater of 100 feet, flood plain, riparian vegetation or soils, or riparian associated 

wetland fens. 

Alternatives: ROD Buffer (RAW): no review needed Protection: Category A and C

Temporary road for Unit 522: No known stream crossings. If any stream crossings are found, crossings structures 

and locations will be approved by USFS, in consultation with fisheries biologist or hydrologist, prior to construction 

(BMP 14.17). During construction of temporary roads implement BMPs 12.17, 13.10, 13.11, 13.16, 14.3, and 14.5.

GEOLOGY/KARST: No Concerns

HERITAGE RESOURCES: This unit was investigated per the third amended interagency Programmatic Agreement 

(PA) for historic properties. As specified by the PA, any potential adverse effect on historic properties (if any) was 

mitigated and portions of the Area of Potential Effect will be monitored by a qualified heritage specialist during 

and/or after actual ground disturbance.

SCENERY: No Concerns

RECREATION: No Concerns

SOILS/WETLANDS: Slopes range from 10% or less, to approximately 72% or more, based on DEMs. All slopes 

greater than 72% will be verified prior to implementation. A small debris avalanche (initiated 1977) occurs near the 

center of the unit. No wetlands have been mapped in the unit. The soils and wetlands are suitable for a minimum of 

partial suspension cable yarding or shovel yarding and should follow R10 BMPs 12.5, 13.2 and 13.9 and National 

Core BMPs Plan-2, Veg-2, Veg-4, Veg-5, and Veg-6. Follow shovel yarding guidelines outlined in the introductions 

to unit cards (R10 BMP 13.9 and National Core Veg-4). Partial harvest with ground-based removal and partial 

suspension thinning will meet soil quality standards.

WILDLIFE: Commercial thinning will enhance wildlife habitat near Deer Creek by improving forage availability 

and removing the stand from the stem exclusion phase for the duration of rotation (until it is harvested again).

626 - Big Thorne Project Record of Decision Appendix 1
3018130

3017500

3018000

3017500

3018130

3018112

1 .1R

1.1L

2

TRIB

1.1L.1L

1

1.AR

1 .30R

3

1.30R.1R

TRIB

1.2R

1.1L.1A L

1.1L

4

1.1L

1963

1962

1995

1995

1970

1973

1963

522

523

524

525

131

132

521

A

A

B

B

C

C

D

D

E

E

F

F

G

G

H

H

I

I

J

J

10 10

9 9

8 8

7 7

6 6

5 5

4 4

3 3

2 2

1 1

Unit Number 522 ROD VCU: 

0 500

Feet

Past Harvest

(Year Origin)

Unsuitable Soils

Riparian Management

Area

Slope > 72%

Other Ownership

Old Growth Habitat LUD

Recreation River LUD

Scenic River LUD

State Highway

National Forest System Road - Open

National Forest System Road - Stored

Non-National Forest 

System Road

Proposed Reconstructed Road

Proposed System Road 

(reopened Decommissioned)

Proposed Temporary Road 

(reopened Decommissioned)

Proposed System Road

Proposed Temporary

Road

Young Growth

Systematic Strip Thin

Uniform Crown Thin

Old Growth

Helicopter

Shovel or Cable

Partial Cut

Class 1 Stream

Class 2 Stream

Class 3 Stream

Class 4 Stream

Lake

100’ Contour

Eagle Nest Buffer

Legacy

Visual Buffer

Deferred (within

Original Unit

Reconnaissance

Area)

579, 586

R:\projects_2010\BigThorneEIS\maps\Unitcards\ROD_YG.mxd 3 June 2013

RR

SR

Young Growth

Appendix 1 - Unit Cards - 627 Appendix 1
Unit 

Number: 523

Alternatives: ROD Total Unit 

Acres: 65.8

Prescription: Systematic and

Crown Thinning

VCU 

Number: 579, 586

Yarding System:

Cable, Shovel

Net Harvest

Volume 

(MBF): 436

LUD: Modified Landscape

Summary of Concerns, Responses, BMPs and Mitigation

SILVICULTURE: Existing Conditions: This majority of this unit lies within Stand #5790200509. This stand has an 

origination date of 1963. This stand has been 23% pre-commercially thinned. This was completed in 1982 and 2004. 

Approximately 10 acres of this unit lies within Stand #5860100509. This stand has been 59% pre-commercially 

thinned. This was primarily completed in 1979 and 1984. The site potential in this unit appears to range from 

medium to high. This unit is in a successional stage of stem exclusion. Approximately 38 acres of the unit lies 

within the Uplands/Mountain Slopes landscape zone. The remaining approximately 24 acres is in the Deer Winter 

Range landscape zone. The unit is located in the Thorne Bay NW young-growth study area.

Silvicultural Objective/Desired Condition (Deer Winter Range):

The management goal of young-growth treatment in this landscape zone is to improve growth, productivity, and 

forest health, while managing for a sustained yield, even flow of an industrial wood supply and improving deer 

winter range conditions in treated stands for the remainder of the rotation.

Silvicultural Objective/Desired Condition (Uplands/Mountain Slopes):

The management goal of young-growth treatments in this landscape zone is to manage for a sustained yield, even 

flow of an industrial wood supply, while meeting multiple resource objectives, wherever possible. Treatments 

should improve growth and productivity, improve forest health, and promote forest stand conditions that will 

provide a diverse array of marketable forest products.

Silvicultural Prescription: Intermediate Treatment Crown Thinning

Apply crown thinning at approximately stand age 50. Crown thinning should retain at least 50% of the existing 

pretreatment stand basal area at that time. Retain trees in a generally uniform pattern. Skips or thickets may be left 

where logging system difficulties occur, in portions of settings where windthrow risk is expected to be unacceptable 

after thinning like along exposed stand edges or knobs, and in any areas where wildlife dens or nests are found. 

Gaps may occur where cable corridors come together near landings or other areas where extra room is needed to 

facilitate yarding or meet specific wildlife objectives.

Silvicultural Prescription: Systematic Thinning

Apply systematic thinning strips in portions of the unit unsuitable for uniform thinning. Systematic thinning should 

be applied primarily in downhill settings where full suspension cannot be achieved or other areas where uniform 

thinning will result in unacceptable levels of residual tree damage or otherwise is operationally infeasible. 

Systematic thinning should remove all trees within corridors 20 to 60 feet wide depending on operational feasibility, 

visual concerns and /or windthrow potential. Maintain a 60-120 foot distance between cut corridors resulting in at 

least a 50% basal area retention. Where visuals are of concern, cut corridors should be kept to approximately 20 feet 

in width pending scenery direction. Although parallel strips are likely to be most common, there are options for fan 

shapes, depending on landing/road locations.

The treatments being proposed are based on the analysis of current data for this stand projected forward in time 

using growth modeling. Marking guidelines covering the specifics of the treatment, such as species to favor for 

retention will be developed at the time of treatment.

TIMBER/YARDING: Cable settings yard to the proposed temporary road, proposed NFS road 3018112 and to NFS 

road 3018000. Shovel settings yard to NFS roads 3018000 and 3017000.

ENGINEERING/ROADS: Unit is accessed by a proposed temporary road of 400 feet, constructed over 

decommissioned road bed for all alternatives, and by proposed NFS road 3018112, totaling 3,300 feet, constructed 

over decommissioned road bed and reconstruction of NFS roads 3018100 and 3018110, totaling 9,600 feet. See road 

cards for information on NFS roads.

BOTANY: No Concerns

INVASIVE SPECIES: No Concerns

FISHERIES: Streams are tributaries to Gravelly Creek. 

628 - Big Thorne Project Record of Decision Appendix 1
Stream#: 1.10R Class: II, III, IV Flagging: B/W, O/W, G/W C-Type: PAB, MMS, HCO Concerns: none

Buffer (RMA): Class II greater of 100 feet (for PAB) or 120 feet (for MMS), flood plain, riparian vegetation or 

soils, or riparian associated wetland fens. Class III for PAB limit harvest or no harvest in riparian area. 

Alternatives: ROD Buffer (RAW): no review needed Protection: Category A, B and C 

Stream#: 1.10R.1R Class: III, IV Flagging: O/W, G/W C-Type: PAB, HCO Concerns: none

Buffer (RMA): Class III for PAB limit harvest or no harvest in riparian area.

Alternatives: ROD Buffer (RAW): no review needed Protection: Category B and C

Stream#: 1.10R.1aR Class: II Flagging: B/W C-Type: HCO 

Concerns: yarding through RMA

Buffer (RMA): Class II for HCO greater of 100 feet or to the top of the side-slope break. 

Alternatives: ROD Buffer (RAW): no review needed Protection: Category A

Stream#: 1.AR Class: II, IV Flagging: B/W, G/W C-Type: HCO Concerns: none

Buffer (RMA): Class II for HCO greater of 100 feet or to the top of the side-slope break. 

Alternatives: ROD Buffer (RAW): no review needed Protection: Category A and C

Temporary road (reopened decommissioned) for Unit 523: No known stream crossings. If any stream crossings are 

found, crossings structures and locations will be approved by USFS, in consultation with fisheries biologist or 

hydrologist, prior to construction (BMP 14.17). During construction of temporary roads implement BMPs 12.17, 

13.10, 13.11, 13.16, 14.3, and 14.5.

GEOLOGY/KARST: No Concerns

HERITAGE RESOURCES: This unit was investigated per the third amended interagency Programmatic Agreement 

(PA) for historic properties. As specified by the PA, any potential adverse effect on historic properties (if any) was 

mitigated and portions of the Area of Potential Effect will be monitored by a qualified heritage specialist during 

and/or after actual ground disturbance.

SCENERY: No Concerns

RECREATION: No Concerns

SOILS/WETLANDS: Slopes range from about 15% to about 72% or more, based on DEMs. All slopes greater than 

72% will be verified prior to implementation. There are approximately 4 acres of forested wetland/emergent short 

sedge complex adjacent to the southern unit boundary (R10 BMP 12.5 and National Core BMPs AqEco-2 and 

AqEco-4). The soils and wetlands are suitable for a minimum of partial suspension cable yarding or shovel yarding 

and should follow R10 BMPs 12.5, 13.2 and 13.9 and National Core BMPs Plan-2, Veg-2, Veg-4, Veg-5, and Veg6. Follow shovel yarding guidelines outlined in the introductions to unit cards (R10 BMP 13.9 and National Core 

Veg-4). Partial harvest with ground-based removal and partial suspension thinning will meet soil quality standards. 

The proposed temporary road will utilize an existing decommissioned road to minimize soil disturbance.

WILDLIFE: Commercial thinning will enhance wildlife habitat near Gravelly and Deer Creeks by improving forage 

availability and removing the stand from the stem exclusion phase for the duration of rotation (until it is harvested 

again).

Appendix 1 - Unit Cards - 629 Appendix 1
3018000

3017300

3017000

3017400

3017000

3018112

3017350

3017500

3017300

1.30R

1.10R.1

1

aR

4

1.1R

1.10R.1R

1

1.10R

1.A R

1.30R.1R

1.1 L

1.3 0R.5L

1970

1971

1963

1973

1963

1973

1962

1965

523

524

525

528

522

A

A

B

B

C

C

D

D

E

E

F

F

G

G

H

H

I

I

J

J

10 10

9 9

8 8

7 7

6 6

5 5

4 4

3 3

2 2

1 1

Unit Number 523 ROD VCU: 

0 500

Feet

Past Harvest

(Year Origin)

Unsuitable Soils

Riparian Management

Area

Slope > 72%

Other Ownership

Old Growth Habitat LUD

Recreation River LUD

Scenic River LUD

State Highway

National Forest System Road - Open

National Forest System Road - Stored

Non-National Forest 

System Road

Proposed Reconstructed Road

Proposed System Road 

(reopened Decommissioned)

Proposed Temporary Road 

(reopened Decommissioned)

Proposed System Road

Proposed Temporary

Road

Young Growth

Systematic Strip Thin

Uniform Crown Thin

Old Growth

Helicopter

Shovel or Cable

Partial Cut

Class 1 Stream

Class 2 Stream

Class 3 Stream

Class 4 Stream

Lake

100’ Contour

Eagle Nest Buffer

Legacy

Visual Buffer

Deferred (within

Original Unit

Reconnaissance

Area)

579, 586

R:\projects_2010\BigThorneEIS\maps\Unitcards\ROD_YG.mxd 3 June 2013

RR

SR

Young Growth

630 - Big Thorne Project Record of Decision Appendix 1
Unit 

Number: 524

Alternatives: ROD Total Unit 47.4

Acres: 

Prescription: Crown Thinning

VCU 

Number: 579, 586

Yarding System:

Cable, Shovel

Net Harvest

Volume 277

(MBF): 

LUD: Modified Landscape

Summary of Concerns, Responses, BMPs and Mitigation

SILVICULTURE: Existing Conditions: The majority of this unit lies within Stand #5790200509. This stand has an 

origination date of 1963. This stand has been 23% pre-commercially thinned. This was completed in 1982 and 2004. 

Approximately 19 acres of this unit lies within Stand #5860100509. This stand has been 59% pre-commercially 

thinned. This was primarily completed in 1979 and 1984. The site potential in this unit appears to range from 

medium to high. This unit is in a successional stage of stem exclusion. This unit lies entirely within the Deer Winter 

Range landscape zone. This unit is located in the Thorne Bay NW young-growth study area.

Silvicultural Objective/Desired Condition (Deer Winter Range):

The management goal of young-growth treatment in this landscape zone is to improve growth, productivity, and 

forest health, while managing for a sustained yield, even flow of an industrial wood supply and improving deer 

winter range conditions in treated stands for the remainder of the rotation.

Silvicultural Prescription: Intermediate Treatment Crown Thinning

Apply crown thinning at approximately stand age 50. Crown thinning should retain at least 50% of the existing 

pretreatment stand basal area at that time. Retain trees in a generally uniform pattern. Skips or thickets may be left 

where logging system difficulties occur, in portions of settings where windthrow risk is expected to be unacceptable 

after thinning like along exposed stand edges or knobs, and in any areas where wildlife dens or nests are found. 

Gaps may occur where cable corridors come together near landings or other areas where extra room is needed to 

facilitate yarding or meet specific wildlife objectives.

The treatments being proposed are based on the analysis of current data for this stand projected forward in time 

using growth modeling. Marking guidelines covering the specifics of the treatment, such as species to favor for 

retention will be developed at the time of treatment.

TIMBER/YARDING: Shovel settings yard to NFS roads 3017000 and 3018000. Cable settings yard to NFS road 

3017000.

ENGINEERING/ROADS: No proposed road construction or reconstruction.

BOTANY: No Concerns

INVASIVE SPECIES: Orange hawkweed is known along the NFS road 3018000. Monitoring is recommended to 

ensure that the infestations do not spread as a result of the project activities.

FISHERIES: Streams are tributaries to Gravelly Creek. Stream 1 is Gravelly Creek.

Stream#: Lake 1 Class: I Flagging: B/W C-Type: L Concerns: none 

Buffer (RMA): Class I for Lake 1 greater of 100 horizontal feet or to the extent of flood plain, riparian vegetation or 

soils, riparian associated wetland fens, or height of one site potential tree.

Alternatives: ROD Buffer (RAW): no review needed Protection: Category A

Stream#: 1 Class: I Flagging: B/W C-Type: FPM Concerns: none

Buffer (RMA): Class I for FPM greater of 130 feet, flood plain, riparian vegetation or soils, or riparian associated 

wetland fens.

Alternatives: ROD Buffer (RAW): no review needed Protection: Category A

Stream#: 1.10R Class: II Flagging: B/W C-Type: PAB Concerns: none

Buffer (RMA): Class II for PAB greater of 100 feet, flood plain, riparian vegetation or soils, or riparian associated 

wetland fens.

Alternatives: ROD Buffer (RAW): no review needed Protection: Category A 

Stream#: 1.10R.1aR Class: II Flagging: B/W C-Type: HCO Concerns: none

Buffer (RMA): Class II for HCO greater of 100 feet or to the top of the side-slope break. 

Alternatives: ROD Buffer (RAW): no review needed Protection: Category A 

Appendix 1 - Unit Cards - 631 Appendix 1
Stream#: 1.30R Class: I, II Flagging: B/W C-Type: PAB, HCM Concerns: erosion

Buffer (RMA): Class I and II for PAB greater of 100 feet, flood plain, riparian vegetation or soils, or riparian 

associated wetland fens. Class II for HCM greater of 100 feet or to the top of the side-slope break. 

Alternatives: ROD Buffer (RAW): no review needed Protection: Category A

Stream#: 1.30R.5L Class: I Flagging: B/W C-Type: PAB Concerns: none

Buffer (RMA): Class I for PAB greater of 100 feet, flood plain, riparian vegetation or soils, or riparian associated 

wetland fens.

Alternatives: ROD Buffer (RAW): no review needed Protection: Category A

Stream#: 1.AR Class: II Flagging: B/W C-Type: HCO Concerns: none

Buffer (RMA): Class II for HCO greater of 100 feet or to the top of the side-slope break. 

Alternatives: ROD Buffer (RAW): no review needed Protection: Category A

Temporary road for Unit 524: No known stream crossings. If any stream crossings are found, crossings structures 

and locations will be approved by USFS, in consultation with fisheries biologist or hydrologist, prior to construction 

(BMP 14.17). During construction of temporary roads implement BMPs 12.17, 13.10, 13.11, 13.16, 14.3, and 14.5.

GEOLOGY/KARST: No Concerns

HERITAGE RESOURCES: This unit was investigated per the third amended interagency Programmatic Agreement 

(PA) for historic properties. As specified by the PA, any potential adverse effect on historic properties (if any) was 

mitigated and portions of the Area of Potential Effect will be monitored by a qualified heritage specialist during 

and/or after actual ground disturbance.

SCENERY: No Concerns

RECREATION: No Concerns

SOILS/WETLANDS: Slopes generally appear to range between 10% and 60%; however, slopes over 72% may be 

present. Field review is necessary. There are approximately 4 acres of forested wetland/emergent short sedge

complex and about 1/2 acre of moss muskeg in the southern edge of the unit (R10 BMP 12.5 and National Core 

BMPs AqEco-2 and AqEco-4). The soils and wetlands are suitable for a minimum of partial suspension cable 

yarding or shovel yarding and should follow R10 BMPs 12.5, 13.2 and 13.9 and National Core BMPs Plan-2, Veg2, Veg-4, Veg-5, and Veg-6. Follow shovel yarding guidelines outlined in the introductions to unit cards (R10 BMP 

13.9 and National Core Veg-4). Partial harvest with ground-based removal and partial suspension thinning will meet 

soil quality standards.

WILDLIFE: Commercial thinning will enhance wildlife habitat along Gravelly Creek by improving forage 

availability and removing the stand from the stem exclusion phase for the duration of rotation (until it is harvested 

again).

632 - Big Thorne Project Record of Decision Appendix 1
3018000

3017000

3017400

3017500

3017000

3017500

3018112

3017210

3017300

3017200

3017350

1

1.10R

1

.1aR

1.1L.1L

1.2R

1.10R.1R

1.10R

4

1.A R

1.30R.1R

1.1R

1.3 0R.5L

1.3L

1

1.30R

1.1L 1971

1963

1973

1970

1973

1963

1965

1962

523

524

528

522

527

525

A

A

B

B

C

C

D

D

E

E

F

F

G

G

H

H

I

I

J

J

10 10

9 9

8 8

7 7

6 6

5 5

4 4

3 3

2 2

1 1

Unit Number 524 ROD VCU: 

0 500

Feet

Past Harvest

(Year Origin)

Unsuitable Soils

Riparian Management

Area

Slope > 72%

Other Ownership

Old Growth Habitat LUD

Recreation River LUD

Scenic River LUD

State Highway

National Forest System Road - Open

National Forest System Road - Stored

Non-National Forest 

System Road

Proposed Reconstructed Road

Proposed System Road 

(reopened Decommissioned)

Proposed Temporary Road 

(reopened Decommissioned)

Proposed System Road

Proposed Temporary

Road

Young Growth

Systematic Strip Thin

Uniform Crown Thin

Old Growth

Helicopter

Shovel or Cable

Partial Cut

Class 1 Stream

Class 2 Stream

Class 3 Stream

Class 4 Stream

Lake

100’ Contour

Eagle Nest Buffer

Legacy

Visual Buffer

Deferred (within

Original Unit

Reconnaissance

Area)

579, 586

R:\projects_2010\BigThorneEIS\maps\Unitcards\ROD_YG.mxd 3 June 2013

RR

SR

Young Growth

Appendix 1 - Unit Cards - 633 Appendix 1
Unit 

Number: 525

Alternatives: ROD Total Unit 35.6

Acres: 

Prescription: Systematic and

Crown Thinning

VCU 

Number: 579, 586

Yarding System:

Cable, Shovel

Net Harvest

Volume 232

(MBF): 

LUD: Modified Landscape

Summary of Concerns, Responses, BMPs and Mitigation

SILVICULTURE: Existing Conditions: The majority of this unit lies within Stand #5790200509.The stand 

origination date is 1963. This stand has had approximately 23% of the area pre-commercially thinned. This was 

completed in 1982 and 2004. Approximately 5 acres of the unit lies within Stand #5860100509. This stand has had 

approximately 59% of the area pre-commercially thinned. This was primarily completed in 1979 and 1984. The site 

potential appears to range from medium to high. This unit is in a successional stage of stem exclusion. 

Approximately 31 acres of the unit lies within the Deer Winter Range landscape zone. The remaining approximately 

2 acres lies within the Uplands/Mountain Slopes Landscape Zone. This unit is located in the Thorne Bay NW 

young-growth study area.

Silvicultural Objective/Desired Condition (Deer Winter Range):

The management goal of young-growth treatment in this landscape zone is to improve growth, productivity, and 

forest health, while managing for a sustained yield, even flow of an industrial wood supply and improving deer 

winter range conditions in treated stands for the remainder of the rotation.

Silvicultural Objective/Desired Condition (Uplands/Mountain Slopes):

The management goal of young-growth treatments in this landscape zone is to manage for a sustained yield, even 

flow of an industrial wood supply, while meeting multiple resource objectives, wherever possible. Treatments 

should improve growth and productivity, improve forest health, and promote forest stand conditions that will 

provide a diverse array of marketable forest products.

Silvicultural Prescription: Intermediate Treatment Crown Thinning

Apply crown thinning at approximately stand age 50. Crown thinning should retain at least 50% of the existing 

pretreatment stand basal area at that time. Retain trees in a generally uniform pattern. Skips or thickets may be left 

where logging system difficulties occur, in portions of settings where windthrow risk is expected to be unacceptable 

after thinning like along exposed stand edges or knobs, and in any areas where wildlife dens or nests are found. 

Gaps may occur where cable corridors come together near landings or other areas where extra room is needed to 

facilitate yarding or meet specific wildlife objectives.

Silvicultural Prescription: Systematic Thinning

Apply systematic thinning strips in portions of the unit unsuitable for uniform thinning. Systematic thinning should 

be applied primarily in downhill settings where full suspension cannot be achieved or other areas where uniform 

thinning will result in unacceptable levels of residual tree damage or otherwise is operationally infeasible. 

Systematic thinning should remove all trees within corridors 20 to 60 feet wide depending on operational feasibility, 

visual concerns and /or windthrow potential. Maintain a 60-120 foot distance between cut corridors resulting in at 

least a 50% basal area retention. Where visuals are of concern, cut corridors should be kept to approximately 20 feet 

in width pending scenery direction. Although parallel strips are likely to be most common, there are options for fan 

shapes, depending on landing/road locations.

The treatments being proposed are based on the analysis of current data for this stand projected forward in time 

using growth modeling. Marking guidelines covering the specifics of the treatment, such as species to favor for 

retention will be developed at the time of treatment.

TIMBER/YARDING: Shovel setting yard to NFS roads 3017500 and 3017350. Cable settings yard to NFS road 

3017500. 

ENGINEERING/ROADS: Unit is accessed by the reconstruction of NFS roads 3017500 and 3017350, totaling 

5,800 feet. See road cards for information on NFS roads.

BOTANY: No Concerns

INVASIVE SPECIES: No Concerns

FISHERIES: Streams are tributaries to Gravelly Creek. Stream 1 is Gravelly Creek.

Stream#: 1 Class: I Flagging: B/W C-Type: FPM

634 - Big Thorne Project Record of Decision Appendix 1
Concerns: yarding through RMA

Buffer (RMA): Class I for FPM greater of 130 feet, flood plain, riparian vegetation or soils, or riparian associated 

wetland fens.

Alternatives: ROD Buffer (RAW): no review needed Protection: Category A

Stream#: 1.1R Class: III, IV Flagging: O/W, G/W C-Type: HCD, HCO Concerns: none

Buffer (RMA): Class III for HCD to the top of the side-slope break. 

Alternatives: ROD Buffer (RAW): no review needed Protection: Category B and C

Stream#: 1.30R Class: I, II Flagging: B/W C-Type: PAB, HCM 

Concerns: yarding through RMA

Buffer (RMA): Class I and II for PAB greater of 100 feet, flood plain, riparian vegetation or soils, or riparian 

associated wetland fens. Class II for HCM greater of 100 feet or to the top of the side-slope break.

Alternatives: ROD Buffer (RAW): no review needed Protection: Category A

Stream#: 1.30R.1R Class: II, IV Flagging: B/W, G/W C-Type: HCO Concerns: none

Buffer (RMA): Class II for HCO greater of 100 feet or to the top of the side-slope break.

Alternatives: ROD Buffer (RAW): no review needed Protection: Category A and C

Stream#: 4 Class: II, IV Flagging: B/W, G/W C-Type: PAO, HCO Concerns: none

Buffer (RMA): Class II for PAO greater of 100 feet, flood plain, riparian vegetation or soils, or riparian associated 

wetland fens. 

Alternatives: ROD Buffer (RAW): no review needed Protection: Category A and C

All other streams in unit: Class IV Flagging: G/W C-Type: HC and MM 

Concerns: none Buffer (RMA): none Protection: Category C

GEOLOGY/KARST: No Concerns

HERITAGE RESOURCES: This unit was investigated per the third amended interagency Programmatic Agreement 

(PA) for historic properties. As specified by the PA, any potential adverse effect on historic properties (if any) was 

mitigated and portions of the Area of Potential Effect will be monitored by a qualified heritage specialist during 

and/or after actual ground disturbance.

SCENERY: No Concerns

RECREATION: No Concerns

SOILS/WETLANDS: Slopes generally appear to range between 20% and 60%; however, slopes over 72% may be 

present. All slopes greater than 72% will be verified prior to implementation. No wetlands have been mapped in the 

unit. The soils and wetlands are suitable for a minimum of partial suspension cable yarding or shovel yarding and 

should follow R10 BMPs 12.5, 13.2 and 13.9 and National Core BMPs Plan-2, Veg-2, Veg-4, Veg-5, and Veg-6. 

Follow shovel yarding guidelines outlined in the introductions to unit cards (R10 BMP 13.9 and National Core Veg4). Partial harvest with ground-based removal and partial suspension thinning will meet soil quality standards.

WILDLIFE: Commercial thinning will enhance wildlife habitat along Gravelly Creek by improving forage 

availability and removing the stand from the stem exclusion phase for the duration of rotation (until it is harvested 

again).

Appendix 1 - Unit Cards - 635 Appendix 1
3017500

3017000

3017000

3017000

3018000

3017350

3017500

3017200

3017000

3018130

10

1

1.1L

1.10R.1aR

1.1R.10L

3

1.2R

1.2R

1. 3L

1.1R.9L

1.1L.1L

1.30R.1R

4

1.1R. 9L.1L

1.1R

1.3 0R.5L

1.30R

1.1R.8L

1.AR

1

1.1R.9

1.1

L

R

1.1 L

1

1995

1971

1963

1962

1973

1995

1970

1963

523

524

525

528

522

527

526

A

A

B

B

C

C

D

D

E

E

F

F

G

G

H

H

I

I

J

J

10 10

9 9

8 8

7 7

6 6

5 5

4 4

3 3

2 2

1 1

Unit Number 525 ROD VCU: 

0 500

Feet

Past Harvest

(Year Origin)

Unsuitable Soils

Riparian Management

Area

Slope > 72%

Other Ownership

Old Growth Habitat LUD

Recreation River LUD

Scenic River LUD

State Highway

National Forest System Road - Open

National Forest System Road - Stored

Non-National Forest 

System Road

Proposed Reconstructed Road

Proposed System Road 

(reopened Decommissioned)

Proposed Temporary Road 

(reopened Decommissioned)

Proposed System Road

Proposed Temporary

Road

Young Growth

Systematic Strip Thin

Uniform Crown Thin

Old Growth

Helicopter

Shovel or Cable

Partial Cut

Class 1 Stream

Class 2 Stream

Class 3 Stream

Class 4 Stream

Lake

100’ Contour

Eagle Nest Buffer

Legacy

Visual Buffer

Deferred (within

Original Unit

Reconnaissance

Area)

579, 586

R:\projects_2010\BigThorneEIS\maps\Unitcards\ROD_YG.mxd 3 June 2013

RR

SR

Young Growth

636 - Big Thorne Project Record of Decision Appendix 1
Unit 

Number: 526

Alternatives: ROD Total Unit 22.4

Acres: 

Prescription: Systematic and

Crown Thinning

VCU 

Number: 579

Yarding System:

Cable, Shovel

Net Harvest

Volume 170

(MBF): 

LUD: Modified Landscape

Summary of Concerns, Responses, BMPs and Mitigation

SILVICULTURE: Existing Conditions: This unit lies entirely within Stand #5790200509. The stand origination date 

is 1963. Approximately 23% of the area within the stand has been pre-commercially thinned. This was completed in 

1982 and 2004. The site potential appears to be medium. The unit is in a successional stage of stem exclusion. This 

unit lies within the Deer Winter Range landscape zone, and is located in the Thorne Bay NW young-growth study 

Area.

Silvicultural Objective/Desired Condition (Deer Winter Range):

The management goal of young-growth treatment in this landscape zone is to improve growth, productivity, and 

forest health, while managing for a sustained yield, even flow of an industrial wood supply and improving deer 

winter range conditions in treated stands for the remainder of the rotation.

Silvicultural Objective/Desired Condition (Uplands/Mountain Slopes):

The management goal of young-growth treatments in this landscape zone is to manage for a sustained yield, even 

flow of an industrial wood supply, while meeting multiple resource objectives, wherever possible. Treatments 

should improve growth and productivity, improve forest health, and promote forest stand conditions that will 

provide a diverse array of marketable forest products.

Silvicultural Prescription: Intermediate Treatment Crown Thinning

Apply crown thinning at approximately stand age 50. Crown thinning should retain at least 50% of the existing 

pretreatment stand basal area at that time. Retain trees in a generally uniform pattern. Skips or thickets may be left 

where logging system difficulties occur, in portions of settings where windthrow risk is expected to be unacceptable 

after thinning like along exposed stand edges or knobs, and in any areas where wildlife dens or nests are found. 

Gaps may occur where cable corridors come together near landings or other areas where extra room is needed to 

facilitate yarding or meet specific wildlife objectives.

Silvicultural Prescription: Systematic Thinning

Apply systematic thinning strips in portions of the unit unsuitable for uniform thinning. Systematic thinning should 

be applied primarily in downhill settings where full suspension cannot be achieved or other areas where uniform 

thinning will result in unacceptable levels of residual tree damage or otherwise is operationally infeasible. 

Systematic thinning should remove all trees within corridors 20 to 60 feet wide depending on operational feasibility, 

visual concerns and /or windthrow potential. Maintain a 60-120 foot distance between cut corridors resulting in at 

least 50% basal area retention. Where visuals are of concern, cut corridors should be kept to approximately 20 feet 

in width pending scenery direction. Although parallel strips are likely to be most common, there are options for fan 

shapes, depending on landing/road locations.

The treatments being proposed are based on the analysis of current data for this stand projected forward in time 

using growth modeling. Marking guidelines covering the specifics of the treatment, such as species to favor for 

retention will be developed at the time of treatment.

TIMBER/YARDING: Shovel and cable yarding to the proposed temporary road and NFS road 3017350.

ENGINEERING/ROADS: Unit is accessed by reconstruction of NFS road 3017350, totaling 6,500 feet and a 

proposed temporary road of 300 feet, constructed over decommissioned road bed. See road card for information on 

NFS road.

BOTANY: No Concerns

INVASIVE SPECIES: No Concerns

FISHERIES: Streams are tributaries to Gravelly Creek. 

Stream#: 1.1R Class: I Flagging: B/W C-Type: PAB 

Concerns: yarding through RMA

Buffer (RMA): Class I for PAB greater of 100 feet, flood plain, riparian vegetation or soils, or riparian associated 

wetland fens.

Appendix 1 - Unit Cards - 637 Appendix 1
Alternatives: ROD Buffer (RAW): no review needed Protection: Category A

Stream#: 1.1R.9L Class: II, III, IV Flagging: B/W, O/W, G/W C-Type: HCM, HCO 

Concerns: yarding through RMA

Buffer (RMA): Class II for HCM greater of 100 feet or to the top of the side-slope break. Class III for HCM to the 

top of the side-slope break.

Alternatives: ROD Buffer (RAW): no review needed Protection: Category A, B and 

C 

Stream#: 1.1R.10L Class: II, IV Flagging: B/W, G/W C-Type: HCO 

Concerns: yarding through RMA 

Buffer (RMA): Class III for HCM to the top of the side-slope break. 

Alternatives: ROD Buffer (RAW): no review needed Protection: Category A and C

Stream#: 1.2R Class: I, III, IV Flagging: B/W, O/W, G/W C-Type: HCL, HCV, HCO 

Concerns: yarding through RMA

Buffer (RMA): Class I for HCL greater of 100 feet or to the top of the side-slope break. Class III for HCV to the top 

of the side-slope break.

Alternatives: ROD Buffer (RAW): no review needed Protection: Category A, B 

and C

All other streams in unit: Class IV Flagging: G/W C-Type: HC and MM 

Concerns: none Buffer (RMA): none Protection: Category C

Temporary road (reopened decommissioned) for Unit 526: One class IV stream crossing. If any stream crossings 

are found, crossings structures and locations will be approved by USFS, in consultation with fisheries biologist or 

hydrologist, prior to construction (BMP 14.17). During construction of temporary roads implement BMPs 12.17, 

13.10, 13.11, 13.16, 14.3, and 14.5.

GEOLOGY/KARST: No Concerns

HERITAGE RESOURCES: This unit was investigated per the third amended interagency Programmatic Agreement 

(PA) for historic properties. As specified by the PA, any potential adverse effect on historic properties (if any) was 

mitigated and portions of the Area of Potential Effect will be monitored by a qualified heritage specialist during 

and/or after actual ground disturbance.

SCENERY: No Concerns

RECREATION: No Concerns

SOILS/WETLANDS: Slopes are estimated to range from 15% to about 70% based on DEMs. All slopes greater 

than 72% will be verified prior to implementation. There is approximately 1 acre of moss muskeg in the northern 

edge of the unit based on GIS (R10 BMP 12.5 and National Core BMPs AqEco-2 and AqEco-4). The soils and 

wetlands are suitable for a minimum of partial suspension cable yarding or shovel yarding and should follow R10 

BMPs 12.5, 13.2 and 13.9 and National Core BMPs Plan-2, Veg-2, Veg-4, Veg-5, and Veg-6. Follow shovel 

yarding guidelines outlined in the introductions to unit cards (R10 BMP 13.9 and National Core Veg-4). Partial 

harvest with ground-based removal and partial suspension thinning will meet soil quality standards. The proposed 

temporary road will utilize an existing decommissioned road to minimize soil disturbance.

WILDLIFE: Commercial thinning will enhance wildlife habitat near Gravelly Creek by improving forage 

availability and removing the stand from the stem exclusion phase for the duration of rotation (until it is harvested 

again). A road would need to be reconstructed to access the unit.

638 - Big Thorne Project Record of Decision Appendix 1
3017000

3017350

3018130

3017500

3000100

3017500

3017350

3018130

1.1R.9L

1.1 L

1

1.1R

1.30R

1.1L

1.2R

1.1R.10L

1.2R

1.1R. 9L.1L

1.1R.9L

1.30R

1.30R.1R

1.30R.5

1.1R.8L

10

1.1R

1

1963

1995

1995

1962

1995

1972

1995

1963

524

525

526

527

132

522

A

A

B

B

C

C

D

D

E

E

F

F

G

G

H

H

I

I

J

J

10 10

9 9

8 8

7 7

6 6

5 5

4 4

3 3

2 2

1 1

Unit Number 526 ROD VCU: 

0 500

Feet

Past Harvest

(Year Origin)

Unsuitable Soils

Riparian Management

Area

Slope > 72%

Other Ownership

Old Growth Habitat LUD

Recreation River LUD

Scenic River LUD

State Highway

National Forest System Road - Open

National Forest System Road - Stored

Non-National Forest 

System Road

Proposed Reconstructed Road

Proposed System Road 

(reopened Decommissioned)

Proposed Temporary Road 

(reopened Decommissioned)

Proposed System Road

Proposed Temporary

Road

Young Growth

Systematic Strip Thin

Uniform Crown Thin

Old Growth

Helicopter

Shovel or Cable

Partial Cut

Class 1 Stream

Class 2 Stream

Class 3 Stream

Class 4 Stream

Lake

100’ Contour

Eagle Nest Buffer

Legacy

Visual Buffer

Deferred (within

Original Unit

Reconnaissance

Area)

579

R:\projects_2010\BigThorneEIS\maps\Unitcards\ROD_YG.mxd 3 June 2013

RR

SR

Young Growth

Appendix 1 - Unit Cards - 639 Appendix 1
Unit 

Number: 527

Alternatives: ROD Total Unit 8.9

Acres: 

Prescription: Crown Thinning

VCU 

Number: 579

Yarding System:

Shovel

Net Harvest

Volume 52

(MBF): 

LUD: Modified Landscape

Summary of Concerns, Responses, BMPs and Mitigation

SILVICULTURE: Existing Conditions: This unit lies entirely within Stand #5790200509. The stand origination date 

is 1963. Approximately 23% of the area within the stand has been pre-commercially thinned. This was completed in 

1982 and 2004. The site strata appears to be high. This unit is in a successional stage of stem exclusion. This unit 

lies entirely within the Deer Winter Range landscape zone. The unit is located in the Thorne Bay NW young-growth 

study area.

Silvicultural Objective/Desired Condition (Deer Winter Range):

The management goal of young-growth treatment in this landscape zone is to improve growth, productivity, and 

forest health, while managing for a sustained yield, even flow of an industrial wood supply and improving deer 

winter range conditions in treated stands for the remainder of the rotation.

Silvicultural Prescription: Intermediate Treatment Crown Thinning

Apply crown thinning at approximately stand age 50. Crown thinning should retain at least 50% of the existing 

pretreatment stand basal area at that time. Retain trees in a generally uniform pattern. Skips or thickets may be left 

where logging system difficulties occur, in portions of settings where windthrow risk is expected to be unacceptable 

after thinning like along exposed stand edges or knobs, and in any areas where wildlife dens or nests are found. 

Gaps may occur where cable corridors come together near landings or other areas where extra room is needed to 

facilitate yarding or meet specific wildlife objectives.

The treatments being proposed are based on the analysis of current data for this stand projected forward in time 

using growth modeling. Marking guidelines covering the specifics of the treatment, such as species to favor for 

retention will be developed at the time of treatment.

TIMBER/YARDING: Shovel yarding to the proposed temporary road.

ENGINEERING/ROADS: Unit is accessed by reconstruction of NFS road 3017000, totaling 1,500 feet and a 

proposed temporary road of 1,400 feet, constructed over decommissioned road bed. See road card for information on 

NFS road.

BOTANY: No Concerns

INVASIVE SPECIES: No Concerns

FISHERIES: Streams are tributaries to Gravelly Creek. Stream 1 is Gravelly Creek.

Stream#: 1 Class: I Flagging: B/W C- Type: MCM, FPL, FPM Concerns: none

Buffer (RMA): Class I for MCM greater of 100 feet or to the top of the side-slope break. Class I for FPL and FPM

greater of 130 feet, flood plain, riparian vegetation or soils, or riparian associated wetland fens.

Alternatives: ROD Buffer (RAW): no review needed Protection: Category A

Stream#: 1.1L Class: I, II Flagging: B/W C- Type: HCD, PAB Concerns: none

Buffer (RMA): Class I for HCD greater of 100 feet or to the top of the side-slope break. Class II for PAB greater of 

100 feet, flood plain, riparian vegetation or soils, or riparian associated wetland fens.

Alternatives: ROD Buffer (RAW): no review needed Protection: Category A 

Temporary road (reopened decommissioned) for Unit 527: No known stream crossings. If any stream crossings are 

found, crossings structures and locations will be approved by USFS, in consultation with fisheries biologist or 

hydrologist, prior to construction (BMP 14.17). During construction of temporary roads implement BMPs 12.17, 

13.10, 13.11, 13.16, 14.3, and 14.5.

GEOLOGY/KARST: No Concerns

HERITAGE RESOURCES: This unit was investigated per the third amended interagency Programmatic Agreement 

(PA) for historic properties. As specified by the PA, any potential adverse effect on historic properties (if any) was 

mitigated and portions of the Area of Potential Effect will be monitored by a qualified heritage specialist during 

and/or after actual ground disturbance.

SCENERY: No Concerns

640 - Big Thorne Project Record of Decision Appendix 1
RECREATION: No Concerns

SOILS/WETLANDS: Slopes generally appear to range between 20% and 65%; however, slopes over 72% may be 

present. All slopes greater than 72% will be verified prior to implementation. No wetlands have been mapped in the 

unit. The soils and wetlands are suitable for a minimum of partial suspension cable yarding or shovel yarding and 

should follow R10 BMPs 12.5, 13.2 and 13.9 and National Core BMPs Plan-2, Veg-2, Veg-4, Veg-5, and Veg-6. 

Follow shovel yarding guidelines outlined in the introductions to unit cards (R10 BMP 13.9 and National Core Veg4). Partial harvest with ground-based removal and partial suspension thinning will meet soil quality standards. The 

proposed temporary roads will utilize existing decommissioned roads to minimize soil disturbance.

WILDLIFE: Commercial thinning will enhance wildlife habitat along Gravelly Creek by improving forage 

availability and removing the stand from the stem exclusion phase for the duration of rotation (until it is harvested 

again).

Appendix 1 - Unit Cards - 641 Appendix 1
3017350

3017000

3000100

3017000

3017000

3017500

3017500

3018130

3017000

3017210

3017200

3017350

1. 1R1. 0L

1

1.1R.8L

1.1R.9L

1.2R

9

1

1.2R

1.1R.9L.1

10

1.1L.1L

1.30R.1R

.10R.1

1.1 L

1.10 R

1.1L

1.1R

1.3 0R.5L

3

1.30R

2

1

1

1.1R.9L

1.1R

1.3L

1972

1963

1995

1962

1971

1963

1995 522

527

369

528

526

525

524

A

A

B

B

C

C

D

D

E

E

F

F

G

G

H

H

I

I

J

J

10 10

9 9

8 8

7 7

6 6

5 5

4 4

3 3

2 2

1 1

Unit Number 527 ROD VCU: 

0 500

Feet

Past Harvest

(Year Origin)

Unsuitable Soils

Riparian Management

Area

Slope > 72%

Other Ownership

Old Growth Habitat LUD

Recreation River LUD

Scenic River LUD

State Highway

National Forest System Road - Open

National Forest System Road - Stored

Non-National Forest 

System Road

Proposed Reconstructed Road

Proposed System Road 

(reopened Decommissioned)

Proposed Temporary Road 

(reopened Decommissioned)

Proposed System Road

Proposed Temporary

Road

Young Growth

Systematic Strip Thin

Uniform Crown Thin

Old Growth

Helicopter

Shovel or Cable

Partial Cut

Class 1 Stream

Class 2 Stream

Class 3 Stream

Class 4 Stream

Lake

100’ Contour

Eagle Nest Buffer

Legacy

Visual Buffer

Deferred (within

Original Unit

Reconnaissance

Area)

579

R:\projects_2010\BigThorneEIS\maps\Unitcards\ROD_YG.mxd 3 June 2013

RR

SR

Young Growth

642 - Big Thorne Project Record of Decision Appendix 1
Unit 

Number: 528

Alternatives: ROD Total Unit 72.6

Acres: 

Prescription: Systematic and

Crown Thinning

VCU 

Number: 579

Yarding System:

Cable, Shovel

Net Harvest

Volume 472

(MBF):

LUD: Modified Landscape

Summary of Concerns, Responses, BMPs and Mitigation

SILVICULTURE: Existing Conditions: This unit lies entirely within Stand #5790200509. The stand origination date 

is 1963. Approximately 23% of the area within the stand has been pre-commercially thinned, which was completed 

in 1982 and 2004. The site potential appears to be medium. This unit is in a successional stage of stem exclusion. 

Approximately 33 acres of the unit lies within the Deer Winter Range landscape zone. Approximately 29 acres is in 

the Uplands/Mountain Slopes landscape zone. This unit is located in the Thorne Bay NW young-growth study areas.

Silvicultural Objective/Desired Condition (Deer Winter Range):

The management goal of young-growth treatment in this landscape zone is to improve growth, productivity, and 

forest health, while managing for a sustained yield, even flow of an industrial wood supply and improving deer 

winter range conditions in treated stands for the remainder of the rotation.

Silvicultural Objective/Desired Condition (Uplands/Mountain Slopes):

The management goal of young-growth treatments in this landscape zone is to manage for a sustained yield, even 

flow of an industrial wood supply, while meeting multiple resource objectives, wherever possible. Treatments 

should improve growth and productivity, improve forest health, and promote forest stand conditions that will 

provide a diverse array of marketable forest products.

Silvicultural Prescription: Intermediate Treatment Crown Thinning

Apply crown thinning at approximately stand age 50. Crown thinning should retain at least 50% of the existing 

pretreatment stand basal area at that time. Retain trees in a generally uniform pattern. Skips or thickets may be left 

where logging system difficulties occur, in portions of settings where windthrow risk is expected to be unacceptable 

after thinning like along exposed stand edges or knobs, and in any areas where wildlife dens or nests are found. 

Gaps may occur where cable corridors come together near landings or other areas where extra room is needed to 

facilitate yarding or meet specific wildlife objectives.

Silvicultural Prescription: Systematic Thinning

Apply systematic thinning strips in portions of the unit unsuitable for uniform thinning. Systematic thinning should 

be applied primarily in downhill settings where full suspension cannot be achieved or other areas where uniform 

thinning will result in unacceptable levels of residual tree damage or otherwise is operationally infeasible. 

Systematic thinning should remove all trees within corridors 20 to 60 feet wide depending on operational feasibility, 

visual concerns and /or windthrow potential. Maintain a 60-120 foot distance between cut corridors resulting in at 

least a 50% basal area retention. Where visuals are of concern, cut corridors should be kept to approximately 20 feet 

in width pending scenery direction. Although parallel strips are likely to be most common, there are options for fan 

shapes, depending on landing/road locations.

The treatments being proposed are based on the analysis of current data for this stand projected forward in time 

using growth modeling. Marking guidelines covering the specifics of the treatment, such as species to favor for 

retention will be developed at the time of treatment.

TIMBER/YARDING: Shovel settings yard to NFS roads 3017200, 3017300 and 3017210. Cable settings yard to 

NFS road 3017210. 

ENGINEERING/ROADS: Unit is accessed by reconstruction of NFS roads 3017200, 3017210, and 3017300, 

totaling 4700 feet. See road cards for information on NFS roads.

BOTANY: No Concerns

INVASIVE SPECIES: No Concerns

FISHERIES: Streams are tributaries to Gravelly Creek. Stream 1 is Gravelly Creek.

Stream#: 1 Class: I Flagging: B/W C-Type: FPM, MCM, MCL Concerns: erosion

Buffer (RMA): Class I for FPM greater of 130 feet, flood plain, riparian vegetation or soils, or riparian associated

wetland fens. Class I for MCM and MCL greater of 100 feet or to the top of the side-slope break.

Alternatives: ROD Buffer (RAW): no review needed Protection: Category A

Appendix 1 - Unit Cards - 643 Appendix 1
Stream#: 1.1L Class: II Flagging: B/W C-Type: PAB, HCO Concerns: none

Buffer (RMA): Class II for PAB greater of 100 feet, flood plain, riparian vegetation or soils, or riparian associated 

wetland fens. Class II for HCO greater of 100 feet or to the top of the side-slope break.

Alternatives: ROD Buffer (RAW): no review needed Protection: Category A 

Stream#: 1.3L Class: II, IV Flagging: B/W, G/W C-Type: HCO Concerns: none

Buffer (RMA): Class II for HCO greater of 100 feet or to the top of the side-slope break.

Alternatives: ROD Buffer (RAW): no review needed Protection: Category A and C

All other streams in unit: Class IV Flagging: G/W C-Type: HC and MM 

Concerns: none Buffer (RMA): none Protection: Category C

GEOLOGY/KARST: No Concerns

HERITAGE RESOURCES: This unit was investigated per the third amended interagency Programmatic Agreement 

(PA) for historic properties. As specified by the PA, any potential adverse effect on historic properties (if any) was 

mitigated and portions of the Area of Potential Effect will be monitored by a qualified heritage specialist during 

and/or after actual ground disturbance.

SCENERY: No Concerns

RECREATION: No Concerns

SOILS/WETLANDS: Slopes generally appear to range between about 20% and 80%, based on DEMs. Slopes over 

72% are likely present. All slopes greater than 72% will be verified prior to implementation. A small, older (>40 

years) debris avalanche is mapped in the southwest portion of unit. No wetlands have been mapped in the unit. The 

soils and wetlands are suitable for a minimum of partial suspension cable yarding or shovel yarding and should 

follow R10 BMPs 12.5, 13.2 and 13.9 and National Core BMPs Plan-2, Veg-2, Veg-4, Veg-5, and Veg-6. Follow 

shovel yarding guidelines outlined in the introductions to unit cards (R10 BMP 13.9 and National Core Veg-4). 

Partial harvest with ground-based removal and partial suspension thinning will meet soil quality standards.

WILDLIFE: Commercial thinning will enhance wildlife habitat near Gravelly Creek by improving forage 

availability and removing the stand from the stem exclusion phase for the duration of rotation (until it is harvested 

again).

644 - Big Thorne Project Record of Decision Appendix 1
3017300

3017400

3017000

3018000

3017000

3017400

3017000

3017210

3017350

3017200

3017300

1

4

1.1L

3

2

1.30R.1R

1.2L

1.1L.1L

1.10R

10

1.3 0R.5L

9

1.3L

1.1L

1

1.30R

1.10R.1aR

1.2L

1971

1973

1963

1963

527

529

368

528

525

524

523

369

A

A

B

B

C

C

D

D

E

E

F

F

G

G

H

H

I

I

J

J

10 10

9 9

8 8

7 7

6 6

5 5

4 4

3 3

2 2

1 1

Unit Number 528 ROD VCU: 

0 500

Feet

Past Harvest

(Year Origin)

Unsuitable Soils

Riparian Management

Area

Slope > 72%

Other Ownership

Old Growth Habitat LUD

Recreation River LUD

Scenic River LUD

State Highway

National Forest System Road - Open

National Forest System Road - Stored

Non-National Forest 

System Road

Proposed Reconstructed Road

Proposed System Road 

(reopened Decommissioned)

Proposed Temporary Road 

(reopened Decommissioned)

Proposed System Road

Proposed Temporary

Road

Young Growth

Systematic Strip Thin

Uniform Crown Thin

Old Growth

Helicopter

Shovel or Cable

Partial Cut

Class 1 Stream

Class 2 Stream

Class 3 Stream

Class 4 Stream

Lake

100’ Contour

Eagle Nest Buffer

Legacy

Visual Buffer

Deferred (within

Original Unit

Reconnaissance

Area)

579

R:\projects_2010\BigThorneEIS\maps\Unitcards\ROD_YG.mxd 3 June 2013

RR

SR

Young Growth

Appendix 1 - Unit Cards - 645 Appendix 1
Unit 

Number: 529

Alternatives: ROD Total Unit 8.7

Acres: 

Prescription: Crown Thinning

VCU 

Number: 579

Yarding System:

Cable

Net Harvest

Volume 51

(MBF):

LUD: Modified Landscape

Summary of Concerns, Responses, BMPs and Mitigation

SILVICULTURE: Existing Conditions: This unit lies entirely within Stand #5790200509. The stand origination date 

is 1963. Approximately 23% of the acres within the stand have been pre-commercially thinned, which was 

completed in 1982 and 2004. The site potential appears to be high. This unit is in a successional stage of stem 

exclusion. Approximately 5 acres of the unit lies within the Uplands/Mountain Slopes landscape zone. The 

remaining approximately 2 acres is in the Deer Winter Range landscape zone. This unit is located in the Thorne Bay 

NW young-growth study area.

Silvicultural Objective/Desired Condition (Deer Winter Range):

The management goal of young-growth treatment in this landscape zone is to improve growth, productivity, and 

forest health, while managing for a sustained yield, even flow of an industrial wood supply and improving deer 

winter range conditions in treated stands for the remainder of the rotation.

Silvicultural Objective/Desired Condition (Uplands/Mountain Slopes):

The management goal of young-growth treatments in this landscape zone is to manage for a sustained yield, even 

flow of an industrial wood supply, while meeting multiple resource objectives, wherever possible. Treatments 

should improve growth and productivity, improve forest health, and promote forest stand conditions that will 

provide a diverse array of marketable forest products.

Silvicultural Prescription: Intermediate Treatment Crown Thinning

Apply crown thinning at approximately stand age 50. Crown thinning should retain at least 50% of the existing 

pretreatment stand basal area at that time. Retain trees in a generally uniform pattern. Skips or thickets may be left 

where logging system difficulties occur, in portions of settings where windthrow risk is expected to be unacceptable 

after thinning like along exposed stand edges or knobs, and in any areas where wildlife dens or nests are found. 

Gaps may occur where cable corridors come together near landings or other areas where extra room is needed to 

facilitate yarding or meet specific wildlife objectives.

The treatments being proposed are based on the analysis of current data for this stand projected forward in time 

using growth modeling. Marking guidelines covering the specifics of the treatment, such as species to favor for 

retention will be developed at the time of treatment.

TIMBER/YARDING: Cable yarding to NFS road 3017210.

ENGINEERING/ROADS: Unit is accessed by reconstruction of NFS roads 3017200 and 3017210, totaling 4,000 

feet. See road cards for information on NFS roads.

BOTANY: No Concerns

INVASIVE SPECIES: No Concerns

FISHERIES: Streams are tributaries to Gravelly Creek. 

Stream#: 1.2L Class: III, IV Flagging: O/W, G/W C-Type: HCD, HCO Concerns: none 

Buffer (RMA): Class III for HCD to the top of the side-slope break. 

Alternatives: ROD Buffer (RAW): no review needed Protection: Category B and C

All other streams in unit: Class IV Flagging: G/W C-Type: HC and MM 

Concerns: none Buffer (RMA): none Protection: Category C

GEOLOGY/KARST: No Concerns

HERITAGE RESOURCES: This unit was investigated per the third amended interagency Programmatic Agreement 

(PA) for historic properties. As specified by the PA, any potential adverse effect on historic properties (if any) was 

mitigated and portions of the Area of Potential Effect will be monitored by a qualified heritage specialist during 

and/or after actual ground disturbance.

SCENERY: No Concerns

RECREATION: This young growth unit is located in close proximity to the Boy Scout ATV project. Potential 

impacts would be reduced by avoiding placement of slash on the road prism and stream ford.

646 - Big Thorne Project Record of Decision Appendix 1
SOILS/WETLANDS: Slopes are estimated to be less than 50%. No wetlands have been mapped in the unit. The 

soils and wetlands are suitable for a minimum of partial suspension cable yarding and should follow R10 BMPs 

12.5, 13.2 and 13.9 and National Core BMPs Plan-2, Veg-2, Veg-5, and Veg-6. Partial harvest with partial 

suspension thinning will meet soil quality standards.

WILDLIFE: Commercial thinning will enhance wildlife habitat near Gravelly Creek by improving forage 

availability and removing the stand from the stem exclusion phase for the duration of rotation (until it is harvested 

again).

Appendix 1 - Unit Cards - 647 Appendix 1
3017400

3017420

3017000

3017300

3017400

3017200

3017210

30173003017350

1.1L.1L

R.1aR

1.3L

1.10 R

1.1L

1.1L

1.2L

3

3

4

2

2

1

5

1

10

9

1

1.1L

1.2L

1

1963

1973

1971

1993

1995

369

529

528

368

A

A

B

B

C

C

D

D

E

E

F

F

G

G

H

H

I

I

J

J

10 10

9 9

8 8

7 7

6 6

5 5

4 4

3 3

2 2

1 1

Unit Number 529 ROD VCU: 

0 500

Feet

Past Harvest

(Year Origin)

Unsuitable Soils

Riparian Management

Area

Slope > 72%

Other Ownership

Old Growth Habitat LUD

Recreation River LUD

Scenic River LUD

State Highway

National Forest System Road - Open

National Forest System Road - Stored

Non-National Forest 

System Road

Proposed Reconstructed Road

Proposed System Road 

(reopened Decommissioned)

Proposed Temporary Road 

(reopened Decommissioned)

Proposed System Road

Proposed Temporary

Road

Young Growth

Systematic Strip Thin

Uniform Crown Thin

Old Growth

Helicopter

Shovel or Cable

Partial Cut

Class 1 Stream

Class 2 Stream

Class 3 Stream

Class 4 Stream

Lake

100’ Contour

Eagle Nest Buffer

Legacy

Visual Buffer

Deferred (within

Original Unit

Reconnaissance

Area)

579

R:\projects_2010\BigThorneEIS\maps\Unitcards\ROD_YG.mxd 3 June 2013

RR

SR

Young Growth

648 - Big Thorne Project Record of Decision Appendix 1
Unit 

Number: 531

Alternatives: ROD Total Unit 26.8

Acres: 

Prescription: Systematic and

Crown Thinning

VCU 

Number: 586

Yarding System:

Cable, Shovel

Net Harvest

Volume 195

(MBF):

LUD: Modified Landscape

Summary of Concerns, Responses, BMPs and Mitigation

SILVICULTURE: Existing Conditions: This unit lies entirely within Stand #5860100509. The stand origination date 

is 1963. Approximately 59% of the area within the stand has been pre-commercially thinned. This was primarily 

completed in 1979 and 1984. The site potential appears to be medium. The unit is in a successional stage of stem 

exclusion. This unit lies within the Deer Winter Range Landscape Zone, and is located in the Thorne Bay NW 

young-growth study area.

Silvicultural Objective/Desired Condition (Deer Winter Range):

The management goal of young-growth treatment in this landscape zone is to improve growth, productivity, and 

forest health, while managing for a sustained yield, even flow of an industrial wood supply and improving deer 

winter range conditions in treated stands for the remainder of the rotation.

Silvicultural Prescription: Intermediate Treatment Crown Thinning

Apply crown thinning at approximately stand age 50. Crown thinning should retain at least 50% of the existing 

pretreatment stand basal area at that time. Retain trees in a generally uniform pattern. Skips or thickets may be left 

where logging system difficulties occur, in portions of settings where windthrow risk is expected to be unacceptable 

after thinning like along exposed stand edges or knobs, and in any areas where wildlife dens or nests are found. 

Gaps may occur where cable corridors come together near landings or other areas where extra room is needed to 

facilitate yarding or meet specific wildlife objectives.

Silvicultural Prescription: Systematic Thinning

Apply systematic thinning strips in portions of the unit unsuitable for uniform thinning. Systematic thinning should 

be applied primarily in downhill settings where full suspension cannot be achieved or other areas where uniform 

thinning will result in unacceptable levels of residual tree damage or otherwise is operationally infeasible. 

Systematic thinning should remove all trees within corridors 20 to 60 feet wide depending on operational feasibility, 

visual concerns and /or windthrow potential. Maintain a 60-120 foot distance between cut corridors resulting in at 

least 50% basal area retention. Where visuals are of concern, cut corridors should be kept to approximately 20 feet 

in width pending scenery direction. Although parallel strips are likely to be most common, there are options for fan 

shapes, depending on landing/road locations.

The treatments being proposed are based on the analysis of current data for this stand projected forward in time 

using growth modeling. Marking guidelines covering the specifics of the treatment, such as species to favor for 

retention will be developed at the time of treatment.

TIMBER/YARDING: Cable and shovel yarding to NFS road 3018100.

ENGINEERING/ROADS: Unit is accessed by reconstruction of NFS road 3018100, totaling 2,800 feet. See road 

card for information on NFS road.

BOTANY: No Concerns

INVASIVE SPECIES: No Concerns

FISHERIES: Streams are tributaries to Deer Creek. 

Stream#: 1.1R Class: II Flagging: B/W C-Type: MCS, PAB Concerns: erosion

Buffer (RMA): Class II for MCS greater of 100 feet or to the top of the side-slope break. Class II for PAB greater of 

100 feet, flood plain, riparian vegetation or soils, or riparian associated wetland fens.

Alternatives: ROD Buffer (RAW): no review needed Protection: Category A

Stream#: 1.1R.2R Class: II, IV Flagging: B/W, G/W C-Type: HCO Concerns: none

Buffer (RMA): Class II for HCO greater of 100 feet or to the top of the side-slope break. 

Alternatives: ROD Buffer (RAW): no review needed Protection: Category A and C 

Stream#: 1.1R.3R Class: II, IV Flagging: B/W, G/W C-Type: PAO, HCO Concerns: none

Buffer (RMA): Class II for PAB greater of 100 feet, flood plain, riparian vegetation or soils, or riparian associated 

Appendix 1 - Unit Cards - 649 Appendix 1
wetland fens. Class II for HCO greater of 100 feet or to the top of the side-slope break.

Alternatives: ROD Buffer (RAW): no review needed Protection: Category A and C

All other streams in unit: Class IV Flagging: G/W C-Type: HC and MM 

Concerns: none Buffer (RMA): none Protection: Category C

GEOLOGY/KARST: No Concerns

HERITAGE RESOURCES: This unit was investigated per the third amended interagency Programmatic Agreement 

(PA) for historic properties. As specified by the PA, any potential adverse effect on historic properties (if any) was 

mitigated and portions of the Area of Potential Effect will be monitored by a qualified heritage specialist during 

and/or after actual ground disturbance.

SCENERY: About 1/3 of unit is in Low SIO and 2/3 is in Very Low. Southeastern half of unit may be partially 

visible from the 30 Road, but mostly at an angle and at a distance of a 1/4 to 1/2 mile or so; therefore, VAC would 

be Intermediate or High. Visual disturbance associated with thinning is expected to be well within the level 

permitted by the Forest Plan.

RECREATION: No Concerns

SOILS/WETLANDS: Slopes are estimated to range from about 10% to about 50%. There is about 1/2 acre of 

forested wetland/emergent short sedge complex near the southwest unit boundary (BMP 12.5). (R10 BMP 12.5 and 

National Core BMPs AqEco-2 and AqEco-4). The soils and wetlands are suitable for a minimum of partial 

suspension cable yarding or shovel yarding and should follow R10 BMPs 12.5, 13.2 and 13.9 and National Core 

BMPs Plan-2, Veg-2, Veg-4, Veg-5, and Veg-6. Follow shovel yarding guidelines outlined in the introductions to 

unit cards (R10 BMP 13.9 and National Core Veg-4). Partial harvest with ground-based removal and partial 

suspension thinning will meet soil quality standards.

WILDLIFE: Commercial thinning will enhance wildlife habitat near Deer Creek by improving forage availability 

and removing the stand from the stem exclusion phase for the duration of rotation (until it is harvested again).

650 - Big Thorne Project Record of Decision Appendix 1
3018000

3018050

3000000

3018100

3018122

3018110

1.1R

1. 1R.2L

1 .3L

1.1R

1

3L.2L.1lL

1.3L

1.1R.3R

1 3. L.1

1.1R.1R

1.3L.1L

1.1R

1

1.1L

1.2 R

1.3L.2L

1.1R

1.1R.1L

1

1.1R

1.1R.2R

1

1963

1973

1973

1963

1973

1963

133

520

521

531

130

A

A

B

B

C

C

D

D

E

E

F

F

G

G

H

H

I

I

J

J

10 10

9 9

8 8

7 7

6 6

5 5

4 4

3 3

2 2

1 1

Unit Number 531 ROD VCU: 

0 500

Feet

Past Harvest

(Year Origin)

Unsuitable Soils

Riparian Management

Area

Slope > 72%

Other Ownership

Old Growth Habitat LUD

Recreation River LUD

Scenic River LUD

State Highway

National Forest System Road - Open

National Forest System Road - Stored

Non-National Forest 

System Road

Proposed Reconstructed Road

Proposed System Road 

(reopened Decommissioned)

Proposed Temporary Road 

(reopened Decommissioned)

Proposed System Road

Proposed Temporary

Road

Young Growth

Systematic Strip Thin

Uniform Crown Thin

Old Growth

Helicopter

Shovel or Cable

Partial Cut

Class 1 Stream

Class 2 Stream

Class 3 Stream

Class 4 Stream

Lake

100’ Contour

Eagle Nest Buffer

Legacy

Visual Buffer

Deferred (within

Original Unit

Reconnaissance

Area)

586

R:\projects_2010\BigThorneEIS\maps\Unitcards\ROD_YG.mxd 3 June 2013

RR

SR

Young Growth

Appendix 1 - Unit Cards - 651 Appendix 1
Unit 

Number: 532

Alternatives: ROD Total Unit 18.2

Acres: 

Prescription: Systematic and

Crown Thinning

VCU 

Number: 586

Yarding System:

Cable, Shovel

Net Harvest

Volume 125

(MBF):

LUD: Modified Landscape

Summary of Concerns, Responses, BMPs and Mitigation

SILVICULTURE: Existing Conditions: This unit lies entirely within Stand #5860100509. The stand origination date 

is 1963. Approximately 59% of the area within the stand has been pre-commercially thinned. This was primarily 

completed in 1979 and 1984. The site potential appears to be medium. This unit is in a successional stage of stem 

exclusion. Approximately 10 acres of the unit lies within the Deer Winter Range landscape zone. The remaining 

approximately 9 acres is in the Uplands/Mountain Slopes landscape zone. This unit is located in the Thorne Bay NW 

young-growth study area.

Silvicultural Objective/Desired Condition (Deer Winter Range):

The management goal of young-growth treatment in this landscape zone is to improve growth, productivity, and 

forest health, while managing for a sustained yield, even flow of an industrial wood supply and improving deer 

winter range conditions in treated stands for the remainder of the rotation.

Silvicultural Objective/Desired Condition (Uplands/Mountain Slopes):

The management goal of young-growth treatments in this landscape zone is to manage for a sustained yield, even 

flow of an industrial wood supply, while meeting multiple resource objectives, wherever possible. Treatments 

should improve growth and productivity, improve forest health, and promote forest stand conditions that will 

provide a diverse array of marketable forest products.

Silvicultural Prescription: Intermediate Treatment Crown Thinning

Apply crown thinning at approximately stand age 50. Crown thinning should retain at least 50% of the existing 

pretreatment stand basal area at that time. Retain trees in a generally uniform pattern. Skips or thickets may be left 

where logging system difficulties occur, in portions of settings where windthrow risk is expected to be unacceptable 

after thinning like along exposed stand edges or knobs, and in any areas where wildlife dens or nests are found. 

Gaps may occur where cable corridors come together near landings or other areas where extra room is needed to 

facilitate yarding or meet specific wildlife objectives.

Silvicultural Prescription: Systematic Thinning

Apply systematic thinning strips in portions of the unit unsuitable for uniform thinning. Systematic thinning should 

be applied primarily in downhill settings where full suspension cannot be achieved or other areas where uniform 

thinning will result in unacceptable levels of residual tree damage or otherwise is operationally infeasible. 

Systematic thinning should remove all trees within corridors 20 to 60 feet wide depending on operational feasibility, 

visual concerns and /or windthrow potential. Maintain a 60-120 foot distance between cut corridors resulting in at 

least 50% basal area retention. Where visuals are of concern, cut corridors should be kept to approximately 20 feet 

in width pending scenery direction. Although parallel strips are likely to be most common, there are options for fan 

shapes, depending on landing/road locations.

The treatments being proposed are based on the analysis of current data for this stand projected forward in time 

using growth modeling. Marking guidelines covering the specifics of the treatment, such as species to favor for 

retention will be developed at the time of treatment.

TIMBER/YARDING: Cable and shovel yarding to NFS road 3018100. 

ENGINEERING/ROADS: Unit is accessed by reconstruction of NFS road 3018100, totaling 10,100 feet. See road 

card for information on NFS road.

BOTANY: No Concerns

INVASIVE SPECIES: No Concerns

FISHERIES: Streams are tributaries to Deer Creek. 

Stream#: 2 Class: II Flagging: B/W C-Type: PAB, HCO Concerns: none

Buffer (RMA): Class II for PAB greater of 100 feet, flood plain, riparian vegetation or soils, or riparian associated 

wetland fens. Class II for HCO greater of 100 feet or to the top of the side-slope break. 

Alternatives: ROD Buffer (RAW): no review needed Protection: Category A 

652 - Big Thorne Project Record of Decision Appendix 1
Stream#: 2.1R Class: II, IV Flagging: B/W, G/W C-Type: PAB, HCO Concerns: none

Buffer (RMA): Class II for PAB greater of 100 feet, flood plain, riparian vegetation or soils, or riparian associated 

wetland fens. Class II for HCO greater of 100 feet or to the top of the side-slope break. 

Alternatives: ROD Buffer (RAW): no review needed Protection: Category A and C 

Stream#: 2.1R.1R Class: II, IV Flagging: B/W, G/W C-Type: HCO Concerns: none

Buffer (RMA): Class II for HCO greater of 100 feet or to the top of the side-slope break. 

Alternatives: ROD Buffer (RAW): no review needed Protection: Category A and C

All other streams in unit: Class IV Flagging: G/W C-Type: HC and MM 

Concerns: none Buffer (RMA): none Protection: Category C

GEOLOGY/KARST: No Concerns

HERITAGE RESOURCES: This unit was investigated per the third amended interagency Programmatic Agreement 

(PA) for historic properties. As specified by the PA, any potential adverse effect on historic properties (if any) was 

mitigated and portions of the Area of Potential Effect will be monitored by a qualified heritage specialist during 

and/or after actual ground disturbance.

SCENERY: Unit is in Low SIO and may be partially visible at a distance of 3/4 mile or more from the 30 Road. 

Thinning is not likely to be very noticeable to the typical forest visitor, particularly with topographic and vegetative 

screening.

RECREATION: No Concerns

SOILS/WETLANDS: Slopes generally appear to range between about 15% and 85%. Therefore, slopes over 72% 

are likely to be present. All slopes greater than 72% will be verified prior to implementation. There is 

approximately 1 acre of moss muskeg in the southeast corner of the unit (R10 BMP 12.5 and National Core BMPs 

AqEco-2 and AqEco-4). The soils and wetlands are suitable for a minimum of partial suspension cable yarding or 

shovel yarding and should follow R10 BMPs 12.5, 13.2 and 13.9 and National Core BMPs Plan-2, Veg-2, Veg-4, 

Veg-5, and Veg-6. Follow shovel yarding guidelines outlined in the introductions to unit cards (R10 BMP 13.9 and 

National Core Veg-4). Partial harvest with ground-based removal and partial suspension thinning will meet soil 

quality standards.

WILDLIFE: Commercial thinning will enhance wildlife habitat by improving forage availability and removing the 

stand from the stem exclusion phase for the duration of rotation (until it is harvested again), though a lengthy road 

would be reconstructed to access the unit.

Appendix 1 - Unit Cards - 653 Appendix 1
3018100

3018110

3018110

3018122

3018100

1.1

2. 1R.1R

1.1R

1

2.1 R.1R.1R

2

2.1R

1.1R.1L

2.1R

2.1R.1R

1973

1973

1973

1963

1973

1963

1963 1973

1969

1973

1973

1973

1973

133

532

533

A

A

B

B

C

C

D

D

E

E

F

F

G

G

H

H

I

I

J

J

10 10

9 9

8 8

7 7

6 6

5 5

4 4

3 3

2 2

1 1

Unit Number 532 ROD VCU: 

0 500

Feet

Past Harvest

(Year Origin)

Unsuitable Soils

Riparian Management

Area

Slope > 72%

Other Ownership

Old Growth Habitat LUD

Recreation River LUD

Scenic River LUD

State Highway

National Forest System Road - Open

National Forest System Road - Stored

Non-National Forest 

System Road

Proposed Reconstructed Road

Proposed System Road 

(reopened Decommissioned)

Proposed Temporary Road 

(reopened Decommissioned)

Proposed System Road

Proposed Temporary

Road

Young Growth

Systematic Strip Thin

Uniform Crown Thin

Old Growth

Helicopter

Shovel or Cable

Partial Cut

Class 1 Stream

Class 2 Stream

Class 3 Stream

Class 4 Stream

Lake

100’ Contour

Eagle Nest Buffer

Legacy

Visual Buffer

Deferred (within

Original Unit

Reconnaissance

Area)

586

R:\projects_2010\BigThorneEIS\maps\Unitcards\ROD_YG.mxd 3 June 2013

RR

SR

Young Growth

654 - Big Thorne Project Record of Decision Appendix 1
Unit 

Number: 533

Alternatives: ROD Total Unit 10.3

Acres: 

Prescription: Systematic and

Crown Thinning

VCU 

Number: 586

Yarding System:

Cable, Shovel

Net Harvest

Volume 69

(MBF): 

LUD: Modified Landscape

Summary of Concerns, Responses, BMPs and Mitigation

SILVICULTURE: Existing Conditions: This unit lies entirely within Stand #5860100509. The stand origination date 

is 1963. Approximately 59% of the area within the stand has been pre-commercially thinned. This was primarily 

completed in 1979 and 1984. The site potential appears to be medium. This unit is in a successional stage of stem 

exclusion. Approximately 8 acres of the unit lies within the Uplands/Mountain Slopes landscape zone. The 

remaining approximately 4 acres is in the Deer Winter Range landscape zone. This unit is located in the Thorne Bay 

NW young-growth study area.

Silvicultural Objective/Desired Condition (Deer Winter Range):

The management goal of young-growth treatment in this landscape zone is to improve growth, productivity, and 

forest health, while managing for a sustained yield, even flow of an industrial wood supply and improving deer 

winter range conditions in treated stands for the remainder of the rotation.

Silvicultural Objective/Desired Condition (Uplands/Mountain Slopes):

The management goal of young-growth treatments in this landscape zone is to manage for a sustained yield, even 

flow of an industrial wood supply, while meeting multiple resource objectives, wherever possible. Treatments 

should improve growth and productivity, improve forest health, and promote forest stand conditions that will 

provide a diverse array of marketable forest products.

Silvicultural Prescription: Intermediate Treatment Crown Thinning

Apply crown thinning at approximately stand age 50. Crown thinning should retain at least 50% of the existing 

pretreatment stand basal area at that time. Retain trees in a generally uniform pattern. Skips or thickets may be left 

where logging system difficulties occur, in portions of settings where windthrow risk is expected to be unacceptable 

after thinning like along exposed stand edges or knobs, and in any areas where wildlife dens or nests are found. 

Gaps may occur where cable corridors come together near landings or other areas where extra room is needed to 

facilitate yarding or meet specific wildlife objectives.

Silvicultural Prescription: Systematic Thinning

Apply systematic thinning strips in portions of the unit unsuitable for uniform thinning. Systematic thinning should 

be applied primarily in downhill settings where full suspension cannot be achieved or other areas where uniform 

thinning will result in unacceptable levels of residual tree damage or otherwise is operationally infeasible. 

Systematic thinning should remove all trees within corridors 20 to 60 feet wide depending on operational feasibility, 

visual concerns and /or windthrow potential. Maintain a 60-120 foot distance between cut corridors resulting in at 

least a 50% basal area retention. Where visuals are of concern, cut corridors should be kept to approximately 20 feet 

in width pending scenery direction. Although parallel strips are likely to be most common, there are options for fan 

shapes, depending on landing/road locations.

The treatments being proposed are based on the analysis of current data for this stand projected forward in time 

using growth modeling. Marking guidelines covering the specifics of the treatment, such as species to favor for 

retention will be developed at the time of treatment.

TIMBER/YARDING: Cable and shovel yarding to NFS roads 3018100 and 3018122. 

ENGINEERING/ROADS: Unit is accessed by reconstruction of NFS roads 3018100 and 3018122, totaling 10,500 

feet. See road cards for information on NFS roads. 

BOTANY: No Concerns

INVASIVE SPECIES: No Concerns

FISHERIES: Streams are tributaries to Deer Creek.

Stream#: 1 Class: II, IV Flagging: B/W, G/W C-Type: PAB, HCO 

Concerns: yarding through RMA

Buffer (RMA): Class II for PAB greater of 100 feet, flood plain, riparian vegetation or soils, or riparian associated 

wetland fens. Class II for HCO greater of 100 feet or to the top of the side-slope break. 

Appendix 1 - Unit Cards - 655 Appendix 1
Alternatives: ROD Buffer (RAW): no review needed Protection: Category A and C

All other streams in unit: Class IV Flagging: G/W C-Type: HC and MM 

Concerns: none Buffer (RMA): none Protection: Category C

GEOLOGY/KARST: No Concerns

HERITAGE RESOURCES: This unit was investigated per the third amended interagency Programmatic Agreement 

(PA) for historic properties. As specified by the PA, any potential adverse effect on historic properties (if any) was 

mitigated and portions of the Area of Potential Effect will be monitored by a qualified heritage specialist during 

and/or after actual ground disturbance.

SCENERY: Unit is in Low SIO and may be partially visible at a distance of 3/4 mile or more from the 30 Road. 

Thinning is not likely to be very noticeable to the typical forest visitor, particularly with topographic and vegetative 

screening.

RECREATION: No Concerns

SOILS/WETLANDS: Slopes generally range between about 15% and 60%. No slopes over 72% are likely to be 

present. No wetlands have been mapped in the unit. The soils and wetlands are suitable for a minimum of partial 

suspension cable yarding or shovel yarding and should follow R10 BMPs 12.5, 13.2 and 13.9 and National Core 

BMPs Plan-2, Veg-2, Veg-4, Veg-5, and Veg-6. Follow shovel yarding guidelines outlined in the introductions to

unit cards (R10 BMP 13.9 and National Core Veg-4). Partial harvest with ground-based removal and partial 

suspension thinning will meet soil quality standards.

WILDLIFE: Commercial thinning will enhance wildlife habitat by improving forage availability and removing the 

stand from the stem exclusion phase for the duration of rotation (until it is harvested again), though a lengthy road 

would be reconstructed to access the unit.

656 - Big Thorne Project Record of Decision Appendix 1
3000000

3018110

3018100

3018122

3018100

2. 1R.1R

1.1R

1

2.1 R.1R.1R

2

2.1R

2.1R

2.1R.1R

1973

1973

1973

1963

1973

1963

1963

1973

1969

1973

1973 1973

1973

133

532

533

A

A

B

B

C

C

D

D

E

E

F

F

G

G

H

H

I

I

J

J

10 10

9 9

8 8

7 7

6 6

5 5

4 4

3 3

2 2

1 1

Unit Number 533 ROD VCU: 

0 500

Feet

Past Harvest

(Year Origin)

Unsuitable Soils

Riparian Management

Area

Slope > 72%

Other Ownership

Old Growth Habitat LUD

Recreation River LUD

Scenic River LUD

State Highway

National Forest System Road - Open

National Forest System Road - Stored

Non-National Forest 

System Road

Proposed Reconstructed Road

Proposed System Road 

(reopened Decommissioned)

Proposed Temporary Road 

(reopened Decommissioned)

Proposed System Road

Proposed Temporary

Road

Young Growth

Systematic Strip Thin

Uniform Crown Thin

Old Growth

Helicopter

Shovel or Cable

Partial Cut

Class 1 Stream

Class 2 Stream

Class 3 Stream

Class 4 Stream

Lake

100’ Contour

Eagle Nest Buffer

Legacy

Visual Buffer

Deferred (within

Original Unit

Reconnaissance

Area)

586

R:\projects_2010\BigThorneEIS\maps\Unitcards\ROD_YG.mxd 3 June 2013

RR

SR

Young Growth

Appendix 1 - Unit Cards - 657 Appendix 1
Unit 

Number: 542

Alternatives: ROD Total Unit 17.7

Acres: 

Prescription: Systematic Thinning

VCU 

Number: 585 

Yarding System:

Cable

Net Harvest

Volume 138

(MBF): 

LUD: Timber Production

Summary of Concerns, Responses, BMPs and Mitigation

SILVICULTURE: Existing Conditions: This unit lies entirely within Stand #5850100502.The stand origination date 

is 1964. This stand has not been pre-commercially thinned. The site potential in this area appears to range from 

medium to high. This unit is in a successional stage of stem exclusion. Approximately 9 acres of the unit lies within 

the Uplands/Mountain Slopes landscape zone. The remaining approximately 7 acres is in the Deer Winter Range 

landscape zone. Landscape zones and site potential were developed and defined as part of the Prince of Wales Island 

Young Growth Thinning Feasibility Study (Tetra Tech & Stuntzner Engineering/Forestry, 2011).

Silvicultural Objective/Desired Condition (Deer Winter Range):

The management goal of young-growth treatment in this landscape zone is to improve growth, productivity, and 

forest health, while managing for a sustained yield, even flow of an industrial wood supply and improving deer 

winter range conditions in treated stands for the remainder of the rotation.

Silvicultural Objective/Desired Condition (Uplands/Mountain Slopes):

The management goal of young-growth treatments in this landscape zone is to manage for a sustained yield, even 

flow of an industrial wood supply, while meeting multiple resource objectives, wherever possible. Treatments 

should improve growth and productivity, improve forest health, and promote forest stand conditions that will 

provide a diverse array of marketable forest products.

Silvicultural Prescription: Systematic Thinning

Apply systematic thinning strips in portions of the unit unsuitable for uniform thinning. Systematic thinning should 

be applied primarily in downhill settings where full suspension cannot be achieved or other areas where uniform 

thinning will result in unacceptable levels of residual tree damage or otherwise is operationally infeasible. 

Systematic thinning should remove all trees within corridors 20 to 60 feet wide depending on operational feasibility, 

visual concerns and /or windthrow potential. Maintain a 60-120 foot distance between cut corridors resulting in at 

least 50% basal area retention. Where visuals are of concern, cut corridors should be kept to approximately 20 feet 

in width pending scenery direction. Although parallel strips are likely to be most common, there are options for fan 

shapes, depending on landing/road locations.

The treatments being proposed are based on the analysis of current data for this stand projected forward in time 

using growth modeling. Marking guidelines covering the specifics of the treatment, such as species to favor for 

retention will be developed at the time of treatment.

TIMBER/YARDING: Cable yarding to NFS road 3018252.

ENGINEERING/ROADS: Unit is accessed by reconstruction of NFS roads 3018250 and 3018252, totaling 2700 

feet. See road cards for information on NFS roads.

BOTANY: No Concerns

INVASIVE SPECIES: No Concerns

FISHERIES: No streams found in unit at time of survey. If streams are found during implementation a fish biologist 

would be notified and appropriate protections would be applied.

GEOLOGY/KARST: No Concerns

HERITAGE RESOURCES: This unit was investigated per the third amended interagency Programmatic Agreement 

(PA) for historic properties. As specified by the PA, any potential adverse effect on historic properties (if any) was 

mitigated and portions of the Area of Potential Effect will be monitored by a qualified heritage specialist during 

and/or after actual ground disturbance.

SCENERY: No Concerns

RECREATION: No Concerns

SOILS/WETLANDS: Slopes generally appear to range between about 15% and 80%. Therefore, slopes over 72% 

are likely to be present. All slopes greater than 72% will be verified prior to implementation. There is

approximately 1/4 acre of emergent short-sedge wetland adjacent to the eastern unit boundary (R10 BMP 12.5 and 

National Core BMPs AqEco-2 and AqEco-4). The soils and wetlands are suitable for a minimum of partial 

658 - Big Thorne Project Record of Decision Appendix 1
suspension cable yarding and should follow R10 BMPs 12.5, 13.2 and 13.9 and National Core BMPs Plan-2, Veg-2, 

Veg-5, and Veg-6. Partial harvest thinning will meet soil quality standards.

WILDLIFE: Commercial thinning will enhance wildlife habitat near Slide Creek by improving forage availability 

and removing the stand from the stem exclusion phase for the duration of rotation (until it is harvested again). A

road would be reconstructed to access this isolated unit.

Appendix 1 - Unit Cards - 659 Appendix 1
3018251

3018495

3017420

3018220

3018250

3017422

3018200

3018250

3018252

1.5R

1.4R

1.3R

1965

1995

1993

1964

1995

1995

1995

542

A

A

B

B

C

C

D

D

E

E

F

F

G

G

H

H

I

I

J

J

10 10

9 9

8 8

7 7

6 6

5 5

4 4

3 3

2 2

1 1

Unit Number 542 ROD VCU: 

0 500

Feet

Past Harvest

(Year Origin)

Unsuitable Soils

Riparian Management

Area

Slope > 72%

Other Ownership

Old Growth Habitat LUD

Recreation River LUD

Scenic River LUD

State Highway

National Forest System Road - Open

National Forest System Road - Stored

Non-National Forest 

System Road

Proposed Reconstructed Road

Proposed System Road 

(reopened Decommissioned)

Proposed Temporary Road 

(reopened Decommissioned)

Proposed System Road

Proposed Temporary

Road

Young Growth

Systematic Strip Thin

Uniform Crown Thin

Old Growth

Helicopter

Shovel or Cable

Partial Cut

Class 1 Stream

Class 2 Stream

Class 3 Stream

Class 4 Stream

Lake

100’ Contour

Eagle Nest Buffer

Legacy

Visual Buffer

Deferred (within

Original Unit

Reconnaissance

Area)

585

R:\projects_2010\BigThorneEIS\maps\Unitcards\ROD_YG.mxd 3 June 2013

RR

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Young Growth

660 - Big Thorne Project Record of Decision Appendix 1
Unit 

Number: 544

Alternatives: ROD Total Unit 15.4

Acres: 

Prescription: Systematic and 

Crown Thinning 

VCU 

Number: 584

Yarding System: 

Cable, Shovel

Net Harvest

Volume 100

(MBF): 

LUD: Modified Landscape

Summary of Concerns, Responses, BMPs and Mitigation

SILVICULTURE:

Existing Conditions: The unit lies primarily within Stand #5840200574. The stand origination date is 1966. 

Approximately 82% of the stand area has been pre-commercially thinned, which was primarily completed in 2005. 

Approximately 3 acres of this unit lies within Stand #5840200575. The stand origination date is 1969. This stand has 

been completely pre-commercially thinned, which was primarily completed in 1984. Approximately 2 acres of the 

unit lies within Stand #5840300501. The stand origination date is 1966. Approximately 28% of the stand area has 

been pre-commercially thinned, which was primarily completed in 1983 and 2005. The site potential appears to

range from medium to high. This unit is in a successional stage of stem exclusion. This unit lies within the Deer 

Winter Range landscape zone, and is located in the Ratz Harbor young-growth study area.

Silvicultural Objective/Desired Condition (Deer Winter Range):

The management goal of young-growth treatment in this landscape zone is to improve growth, productivity, and 

forest health, while managing for a sustained yield, even flow of an industrial wood supply and improving deer 

winter range conditions in treated stands for the remainder of the rotation.

Silvicultural Prescription: Intermediate Treatment Crown Thinning

Apply crown thinning at approximately stand age 50. Crown thinning should retain at least 50% of the existing 

retreatment stand basal area at that time. Retain trees in a generally uniform pattern. Skips or thickets may be left 

where logging system difficulties occur, in portions of settings where windthrow risk is expected to be unacceptable 

after thinning like along exposed stand edges or knobs, and in any areas where wildlife dens or nests are found. 

Gaps may occur where cable corridors come together near landings or other areas where extra room is needed to 

facilitate yarding or meet specific wildlife objectives.

Silvicultural Prescription: Systematic Thinning

Apply systematic thinning strips in portions of the unit unsuitable for uniform thinning. Systematic thinning should 

be applied primarily in downhill settings where full suspension cannot be achieved or other areas where uniform 

thinning will result in unacceptable levels of residual tree damage or otherwise is operationally infeasible. 

Systematic thinning should remove all trees within corridors 20 to 60 feet wide depending on operational feasibility, 

visual concerns and /or windthrow potential. Maintain a 60-120 foot distance between cut corridors resulting in at 

least a 50% basal area retention. Where visuals are of concern, cut corridors should be kept to approximately 20 feet 

in width pending scenery direction. Although parallel strips are likely to be most common, there are options for fan 

shapes, depending on landing/road locations.

The treatments being proposed are based on the analysis of current data for this stand projected forward in time 

using growth modeling. Marking guidelines covering the specifics of the treatment, such as species to favor for 

retention will be developed at the time of treatment.

TIMBER/YARDING: Shovel settings yard to NFS roads 3000000 and 3020000. Cable settings yard to NFS road 

3020000.

ENGINEERING/ROADS: No proposed road construction or reconstruction.

BOTANY: No Concerns

INVASIVE SPECIES: A small infestation of orange hawkweed was known along the existing road adjacent to the 

unit. This infestation had been treated in 2010, recommend monitoring and treatment as needed.

FISHERIES: Streams are tributaries to Sal Creek. Stream 1 is Sal Creek.

Stream#: 1 Class: I Flagging: B/W C-Type: FPM Concerns: none

Buffer (RMA): Class I for FPM greater of 130 feet, flood plain, riparian vegetation or soils, or riparian associated 

wetland fens.

Alternatives: ROD Buffer (RAW): no review needed Protection: Category A

Stream#: 1.1R Class: I Flagging: B/W C-Type: PAO Concerns: none

Buffer (RMA): Class I for PAO greater of 100 feet, flood plain, riparian vegetation or soils, or riparian associated 

wetland fens.

Alternatives: ROD Buffer (RAW): no review needed Protection: Category A

 

Stream#: 1.2R Class: I Flagging: B/W C-Type: FPO Concerns: none

Appendix 1 - Unit Cards - 661 Appendix 1
Buffer (RMA): Class I for FPO greater of 130 feet, flood plain, riparian vegetation or soils, or riparian associated 

wetland fens.

Alternatives: ROD Buffer (RAW): no review needed Protection: Category A 

Stream#: 1.3R Class: I, III Flagging: B/W, O/W C-Type: AFM, AFH, HCM 

Concerns: none

Buffer (RMA): Class I and III for AFM and AFH greater of 140 feet or active portion of the alluvial fan. Class III 

for HCM to the top of the side-slope break.

Alternatives: ROD Buffer (RAW): no review needed Protection: Category A and B

Stream#: 1.4R Class: II, IV Flagging: B/W, G/W C-Type: AFM, HCO Concerns: none

Buffer (RMA): Class II for AFM greater of 140 feet or active portion of the alluvial fan.

Alternatives: ROD Buffer (RAW): no review needed Protection: Category A and C

Stream#: 1.5R Class: I, IV Flagging: B/W, G/W C-Type: PAB, HCO Concerns: none

Buffer (RMA): Class I for PAB greater of 130 feet, flood plain, riparian vegetation or soils, or riparian associated 

wetland fens.

Alternatives: ROD Buffer (RAW): no review needed Protection: Category A and C

Stream#: 1.6R Class: I, II, III Flagging: B/W, O/W C-Type: AFM, AFH, HCM

Concerns: none

Buffer (RMA): Class I and II for AFM and AFH greater of 140 feet or active portion of the alluvial fan. Class III for 

HCM to the top of the side-slope break.

Alternatives: ROD Buffer (RAW): no review needed Protection: Category A and B

All other streams in unit: Class IV Flagging: G/W C-Type: HC and MM 

Concerns: none Buffer (RMA): none Protection: Category C

GEOLOGY/KARST: No Concerns

HERITAGE RESOURCES: This unit was investigated per the third amended interagency Programmatic Agreement 

(PA) for historic properties. As specified by the PA, any potential adverse effect on historic properties (if any) was 

mitigated and portions of the Area of Potential Effect will be monitored by a qualified heritage specialist during 

and/or after actual ground disturbance.

SCENERY: The unit is broken into three separate polygons and includes about 5 acres of Moderate SIO, 1 acre of 

Low SIO, and 21 acres of Very Low SIO. Because of vegetative and topographic screening, little of the unit would 

be visible from NFS Road 3000000 or saltwater use areas. A portion of the unit is along NFS Road 3000000 and this 

will be uniformly thinned.

RECREATION: No Concerns

SOILS/WETLANDS: Slopes are estimated to be in the range of about 15% to 40%. There are approximately 19 

acres of forested wetland in the unit (R10 BMP 12.5 and National Core BMPs AqEco-2 and AqEco-4). The soils 

and wetlands are suitable for a minimum of partial suspension cable yarding or shovel yarding and should follow 

R10 BMPs 12.5, 13.2 and 13.9 and National Core BMPs Plan-2, Veg-2, Veg-4, Veg-5, and Veg-6. Follow shovel 

yarding guidelines outlined in the introductions to unit cards (R10 BMP 13.9 and National Core Veg-4). Partial 

harvest with ground-based removal and partial suspension thinning will meet soil quality standards.

WILDLIFE: Commercial thinning will enhance wildlife habitat near Sal Creek by improving forage availability and 

moving the stand from the stem exclusion phase for the duration of rotation (until it is harvested again). Old-growth

Reserve in the vicinity of Sal Creek provides connectivity between the beach fringe and the North Thorne drainage 

to the west.

662 - Big Thorne Project Record of Decision Appendix 1
3020000

3000210

3000000

3 .1L.1R

3

1.3R

1.1 R

3.1L

1.6R

1.4R1

4.1R

2

1.6R.1L

5

1.2 R

1. 6 R.2L

1.3R

6

3

4

4

9

1.4R

1.5R

1.6R.1R

8

1.6R

5.1L

1.6R

1966

1969

1992

1966

1992

1966

544

545

148 149

A

A

B

B

C

C

D

D

E

E

F

F

G

G

H

H

I

I

J

J

10 10

9 9

8 8

7 7

6 6

5 5

4 4

3 3

2 2

1 1

Unit Number 544 ROD VCU: 

0 500

Feet

Past Harvest

(Year Origin)

Unsuitable Soils

Riparian Management

Area

Slope > 72%

Other Ownership

Old Growth Habitat LUD

Recreation River LUD

Scenic River LUD

State Highway

National Forest System Road - Open

National Forest System Road - Stored

Non-National Forest 

System Road

Proposed Reconstructed Road

Proposed System Road 

(reopened Decommissioned)

Proposed Temporary Road 

(reopened Decommissioned)

Proposed System Road

Proposed Temporary

Road

Young Growth

Systematic Strip Thin

Uniform Crown Thin

Old Growth

Helicopter

Shovel or Cable

Partial Cut

Class 1 Stream

Class 2 Stream

Class 3 Stream

Class 4 Stream

Lake

100’ Contour

Eagle Nest Buffer

Legacy

Visual Buffer

Deferred (within

Original Unit

Reconnaissance

Area)

584

R:\projects_2010\BigThorneEIS\maps\Unitcards\ROD_YG.mxd 3 June 2013

RR

SR

Young Growth

Appendix 1 - Unit Cards - 663 Appendix 1
Unit 

Number: 545

Alternatives: ROD Total Unit 190.6

Acres: 

Prescription: Systematic and 

Crown Thinning

VCU 

Number: 584

Yarding System:

Cable, Shovel

Net Harvest

Volume 1445

(MBF): 

LUD: Modified Landscape

Summary of Concerns, Responses, BMPs and Mitigation

SILVICULTURE: 

Existing Conditions: This unit lies entirely within Stand #5840200574. The stand origination date is 1966. 

Approximately 53% of the area within this stand has been pre-commercially thinned, which was completed in 1983 

and 2005. The site potential appears to range from medium to high. This unit is in a successional stage of stem 

exclusion. Approximately 209 acres of this unit lies within the Deer Winter Range landscape zone. The remaining 

approximately 1 acre lies within the Uplands/Mountain Slopes landscape zone. This unit is located in the Ratz 

Harbor young-growth study area.

Silvicultural Objective/Desired Condition (Deer Winter Range):

The management goal of young-growth treatment in this landscape zone is to improve growth, productivity, and 

forest health, while managing for a sustained yield, even flow of an industrial wood supply and improving deer 

winter range conditions in treated stands for the remainder of the rotation.

Silvicultural Objective/Desired Condition (Uplands/Mountain Slopes):

The management goal of young-growth treatments in this landscape zone is to manage for a sustained yield, even 

flow of an industrial wood supply, while meeting multiple resource objectives, wherever possible. Treatments 

should improve growth and productivity, improve forest health, and promote forest stand conditions that will 

provide a diverse array of marketable forest products.

Silvicultural Prescription: Intermediate Treatment Crown Thinning

Apply crown thinning at approximately stand age 50. Crown thinning should retain at least 50% of the existing 

pretreatment stand basal area at that time. Retain trees in a generally uniform pattern. Skips or thickets may be left 

where logging system difficulties occur, in portions of settings where windthrow risk is expected to be unacceptable 

after thinning like along exposed stand edges or knobs, and in any areas where wildlife dens or nests are found. 

Gaps may occur where cable corridors come together near landings or other areas where extra room is needed to 

facilitate yarding or meet specific wildlife objectives.

Silvicultural Prescription: Systematic Thinning

Apply systematic thinning strips in portions of the unit unsuitable for uniform thinning. Systematic thinning should 

be applied primarily in downhill settings where full suspension cannot be achieved or other areas where uniform 

thinning will result in unacceptable levels of residual tree damage or otherwise is operationally infeasible. 

Systematic thinning should remove all trees within corridors 20 to 60 feet wide depending on operational feasibility, 

visual concerns and /or windthrow potential. Maintain a 60-120 foot distance between cut corridors resulting in at 

least a 50% basal area retention. Where visuals are of concern, cut corridors should be kept to approximately 20 feet 

in width pending scenery direction. Although parallel strips are likely to be most common, there are options for fan 

shapes, depending on landing/road locations.

The treatments being proposed are based on the analysis of current data for this stand projected forward in time 

using growth modeling. Marking guidelines covering the specifics of the treatment, such as species to favor for 

retention will be developed at the time of treatment.

TIMBER/YARDING: Shovel and cable yarding to NFS roads 3020000.

ENGINEERING/ROADS: No proposed road construction or reconstruction.

BOTANY: No Concerns

INVASIVE SPECIES: No Concerns

FISHERIES: Streams are tributaries to Sal Creek. Stream 1 is Sal Creek.

Stream#: 1 Class: I, II Flagging: B/W C- Type: FPM, MMM, HCM

Concerns: yarding through RMA

Buffer (RMA): Class I and II - greater of 130 feet (for FPM) or 120 feet (for MMM), flood plain, riparian vegetation 

or soils, or riparian associated wetland fens. Class II for HCM greater of 100 feet or the top of the side-slope break.

Alternatives: ROD Buffer (RAW): no review needed Protection: Category A

Stream#: 1.6R Class: I Flagging: B/W C- Type: AFM Concerns: none

Buffer (RMA): Class I for AFM greater of 140 feet or active portion of the alluvial fan. 

Alternatives: ROD Buffer (RAW): no review needed Protection: Category A 

664 - Big Thorne Project Record of Decision Appendix 1
Stream#: 1.7R Class: I Flagging: B/W C- Type: PAB Concerns: none

Buffer (RMA): Class I for PAB greater of 100 feet, flood plain, riparian vegetation or soils, or riparian associated 

wetland fens.

Alternatives: ROD Buffer (RAW): no review needed Protection: Category A 

Stream#: 1B Class: I Flagging: B/W C- Type: PAB Concerns: none

Buffer (RMA): Class I for PAB greater of 100 feet, flood plain, riparian vegetation or soils, or riparian associated 

wetland fens.

Alternatives: ROD Buffer (RAW): no review needed Protection: Category A 

Stream#: 1.8R Class: I, III Flagging: B/W, O/W C- Type: PAB, AFH, HCO, HCD

Concerns: yarding through RMA

Buffer (RMA): Class I for PAB greater of 100 feet, flood plain, riparian vegetation or soils, or riparian associated 

wetland fens. Class I for AFH greater of 140 feet or active portion of the alluvial fan. Class III for HCO and HCD to 

the top of the side-slope break.

Alternatives: ROD Buffer (RAW): no review needed Protection: Category A and B

Stream#: 1.8R.1R Class: I, II, III Flagging: B/W, O/W C- Type: AFM, AFH, HCD

Concerns: yarding through RMA

Buffer (RMA): Class I and II for AFM and AFH greater of 140 feet or active portion of the alluvial fan. Class III for 

HCD to the top of the side-slope break.

Alternatives: ROD Buffer (RAW): no review needed Protection: Category A and B

Stream#: 1.41R Class: I, II Flagging: B/W C- Type: MMO, HCO 

Concerns: yarding through RMA

Buffer (RMA): Class I for MMO greater of 120 feet, flood plain, riparian vegetation or soils, or riparian associated 

wetland fens. Class II for HCO greater of 100 feet or the top of the side-slope break.

Alternatives: ROD Buffer (RAW): no review needed Protection: Category A

Stream#: 1.8R.1L Class: III Flagging: O/W C- Type: HCO Concerns: none

Buffer (RMA): Class III for HCO to the top of the side-slope break.

Alternatives: 3, 4 and 5 Buffer (RAW): no review needed Protection: Category B 

Stream#: 1.8R.3R Class: II Flagging: B/W C- Type: HCO Concerns: none

Buffer (RMA): Class II for HCO greater of 100 feet or the top of the side-slope break.

Alternatives: ROD Buffer (RAW): no review needed Protection: Category A

Stream#: 1.39R Class: II, III Flagging: B/W, O/W C- Type: HCM 

Concerns: yarding through RMA

Buffer (RMA): Class II for HCM greater of 100 feet or the top of the side-slope break. Class III for HCM to the top 

of the side-slope break.

Alternatives: ROD Buffer (RAW): no review needed Protection: Category A and B

Stream#: 1.40R Class: I, II, III Flagging: B/W, O/W C- Type: MMS, AFM, AFH

Concerns: erosion

Buffer (RMA): Class I for MMS greater of 120 feet, flood plain, riparian vegetation or soils, or riparian associated 

wetland fens. Class I, II, and III for AFM and AFH greater of 140 feet or active portion of the alluvial fan. 

Alternatives: ROD Buffer (RAW): no review needed Protection: Category A and B

Stream#: 1.40R.3R Class: II, III Flagging: B/W, O/W C- Type: HCO, HCD Concerns: erosion

Buffer (RMA): Class II for HCO greater of 100 feet or the top of the side-slope break. Class III for HCD to the top 

of the side-slope break.

Alternatives: ROD Buffer (RAW): no review needed Protection: Category A and B

All other streams in unit: Class IV Flagging: G/W C-Type: HC and MM 

Concerns: none Buffer (RMA): none Protection: Category C

GEOLOGY/KARST: No Concerns

HERITAGE RESOURCES: This unit was investigated per the third amended interagency Programmatic Agreement 

(PA) for historic properties. As specified by the PA, any potential adverse effect on historic properties (if any) was 

Appendix 1 - Unit Cards - 665 Appendix 1
mitigated and portions of the Area of Potential Effect will be monitored by a qualified heritage specialist during 

and/or after actual ground disturbance.

SCENERY: This unit contains 33 acres in Moderate SIO, 78 acres in Low SIO, and 24 acres in Very Low SIO. It is 

a very large unit, but most of it is not seen from visual priority routes and use areas. The largest portion that could be 

seen is considered Background and thinning, even strip thinning, would not be very noticeable from a distance. No 

concerns.

RECREATION: No Concerns

SOILS/WETLANDS: Slopes are estimated to be range about 15% to over 70%. All slopes greater than 72% will be 

verified prior to implementation. There are approximately 106 acres of forested wetland located in the southern half 

of the unit (R10 BMP 12.5 and National Core BMPs AqEco-2 and AqEco-4). The soils and wetlands are suitable for 

a minimum of partial suspension cable yarding or shovel yarding and should follow R10 BMPs 12.5, 13.2 and 13.9 

and National Core BMPs Plan-2, Veg-2, Veg-4, Veg-5, and Veg-6. Follow shovel yarding guidelines outlined in the 

introductions to unit cards (R10 BMP 13.9 and National Core Veg-4). Partial harvest with ground-based removal 

and partial suspension thinning will meet soil quality standards.

WILDLIFE: Commercial thinning will enhance wildlife habitat near Sal Creek by improving forage availability and 

removing the stand for the stem exclusion phase for the duration of rotation (until it is harvested again). Old-growth

Reserve in the vicinity of Sal Creek provides connectivity between the saltwater and the North Thorne drainage to 

the west.

666 - Big Thorne Project Record of Decision Appendix 1
3020100

3020000

3020110

1

1.39R

1.8R.1R

1.7R

3.1L

1 B

3

1.8R.1R

1.6R

1.6R

4

1.4

1. 4R

9

3

1.8R.2 R

1.6R.1L

5

1.9R

6

3

1

1.39R

1.5R

1 4. 0R.3R

1.8R.1L

1 3. 9R.1L

1.41R

2

1.8R

1.40R

1.6R.1R

10

1.6R. 2 L

1

1.6R

5.1L

1.8R.3R

3.1L.1R

1966

1998

1998

1998

1998

1993

1998

1993

1966

1966

544

545

149

A

A

B

B

C

C

D

D

E

E

F

F

G

G

H

H

I

I

J

J

10 10

9 9

8 8

7 7

6 6

5 5

4 4

3 3

2 2

1 1

Unit Number 545 ROD VCU: 

0 500

Feet

Past Harvest

(Year Origin)

Unsuitable Soils

Riparian Management

Area

Slope > 72%

Other Ownership

Old Growth Habitat LUD

Recreation River LUD

Scenic River LUD

State Highway

National Forest System Road - Open

National Forest System Road - Stored

Non-National Forest 

System Road

Proposed Reconstructed Road

Proposed System Road 

(reopened Decommissioned)

Proposed Temporary Road 

(reopened Decommissioned)

Proposed System Road

Proposed Temporary

Road

Young Growth

Systematic Strip Thin

Uniform Crown Thin

Old Growth

Helicopter

Shovel or Cable

Partial Cut

Class 1 Stream

Class 2 Stream

Class 3 Stream

Class 4 Stream

Lake

100’ Contour

Eagle Nest Buffer

Legacy

Visual Buffer

Deferred (within

Original Unit

Reconnaissance

Area)

584

R:\projects_2010\BigThorneEIS\maps\Unitcards\ROD_YG.mxd 3 June 2013

RR

SR

Young Growth

Appendix 1 - Unit Cards - 667 Appendix 1
Unit 

Number: 546

Alternatives: ROD Total Unit 

Acres: 122.1

Prescription: Systematic and 

Crown Thinning

VCU 

Number: 584

Yarding System: 

Cable, Shovel

Net Harvest 

Volume 

(MBF): 914

LUD: Modified Landscape

Summary of Concerns, Responses, BMPs and Mitigation

SILVICULTURE: 

Existing Conditions: This unit lies entirely within Stand #5840100510. The stand origination date is 1964. This area 

has been entirely pre-commercially thinned, which was completed in 1999. The site potential appears to be medium. 

This unit is in a successional stage of stem exclusion. This unit lies within the Deer Winter Range landscape zone, 

and is located in the Ratz Harbor young-growth study area.

Silvicultural Objective/Desired Condition (Deer Winter Range):

The management goal of young-growth treatment in this landscape zone is to improve growth, productivity, and 

forest health, while managing for a sustained yield, even flow of an industrial wood supply and improving deer 

winter range conditions in treated stands for the remainder of the rotation.

Silvicultural Prescription: Intermediate Treatment Crown Thinning

Apply crown thinning at approximately stand age 50. Crown thinning should retain at least 50% of the existing 

pretreatment stand basal area at that time. Retain trees in a generally uniform pattern. Skips or thickets may be left 

where logging system difficulties occur, in portions of settings where windthrow risk is expected to be unacceptable 

after thinning like along exposed stand edges or knobs, and in any areas where wildlife dens or nests are found. 

Gaps may occur where cable corridors come together near landings or other areas where extra room is needed to 

facilitate yarding or meet specific wildlife objectives.

Silvicultural Prescription: Systematic Thinning

Apply systematic thinning strips in portions of the unit unsuitable for uniform thinning. Systematic thinning should 

be applied primarily in downhill settings where full suspension cannot be achieved or other areas where uniform 

thinning will result in unacceptable levels of residual tree damage or otherwise is operationally infeasible. 

Systematic thinning should remove all trees within corridors 20 to 60 feet wide depending on operational feasibility, 

visual concerns and /or windthrow potential. Maintain a 60-120 foot distance between cut corridors resulting in at 

least a 50% basal area retention. Where visuals are of concern, cut corridors should be kept to approximately 20 feet 

in width pending scenery direction. Although parallel strips are likely to be most common, there are options for fan 

shapes, depending on landing/road locations.

The treatments being proposed are based on the analysis of current data for this stand projected forward in time 

using growth modeling. Marking guidelines covering the specifics of the treatment, such as species to favor for 

retention will be developed at the time of treatment.

TIMBER/YARDING: Shovel settings yard to the proposed temporary roads and NFS roads 3023000, 3023100 and

3000000. Cable settings yard to the proposed temporary roads and NFS roads 3023000, 3023100, 3023200 and 

3000000.

ENGINEERING/ROADS: Unit is accessed by reconstruction of NFS roads 3023000, 3023100 and 3023200, 

totaling 6,000 feet and two proposed temporary roads, totaling 1,600 feet, constructed over decommissioned road 

bed. See road cards for information on NFS roads.

BOTANY: No Concerns

INVASIVE SPECIES: No Concerns

FISHERIES: Streams drain to Clarence Strait and Little Ratz Harbor. 

Stream#: 2 Class: II, IV Flagging: B/W, G/W C-Type: HCO Concerns: none 

Buffer (RMA): Class II for HCO greater of 100 feet or to the top of the side-slope break. 

Alternatives: ROD Buffer (RAW): no review needed Protection: Category A and C

Stream#: 3 Class: II, IV Flagging: B/W, G/W C-Type: PAB, HCO Concerns: blowdown

Buffer (RMA): Class II for PAB greater of 100 feet, flood plain, riparian vegetation or soils, or riparian associated 

wetland fens.

Alternatives: ROD Buffer (RAW): no review needed Protection: Category A and C

Stream#: 4 Class: II, IV Flagging: B/W, G/W C-Type: HCO Concerns: none 

Buffer (RMA): Class II for HCO greater of 100 feet or to the top of the side-slope break. 

Alternatives: ROD Buffer (RAW): no review needed Protection: Category A and C

668 - Big Thorne Project Record of Decision Appendix 1
Stream#: 5 Class: I Flagging: B/W C-Type: MMS Concerns: none

Buffer (RMA): Class I for MMS greater of 120 feet, flood plain, riparian vegetation or soils, or riparian associated 

wetland fens.

Alternatives: ROD Buffer (RAW): no review needed Protection: Category A

Stream#: 5.1L Class: II, III Flagging: B/W, O/W C-Type: PAB, MMS, HCM 

Concerns: none

Buffer (RMA): Class I greater of 100 feet (for PAB) or 120 feet (for MMS), flood plain, riparian vegetation or soils, 

or riparian associated wetland fens. Class III for HCM to the top of the side-slope break.

Alternatives: ROD Buffer (RAW): no review needed Protection: Category A and B 

Stream#: 5.1L.1R Class: III, IV Flagging: O/W, G/W C-Type: HCM Concerns: blowdown

Buffer (RMA): Class III for HCM to the top of the side-slope break.

Alternatives: ROD Buffer (RAW): no review needed Protection: Category B and C

Stream#: 5.1L.1L Class: II, III, IV Flagging: B/W, O/W, G/W C-Type: MMS, HCM, HCO 

Concerns: blowdown

Buffer (RMA): Class I for MMS greater of 120 feet, flood plain, riparian vegetation or soils, or riparian associated 

wetland fens. Class III for HCM to the top of the side-slope break.

Alternatives: ROD Buffer (RAW): no review needed Protection: Category A, B and C

Stream#: 5.1L.1L.2R Class: II, IV Flagging: B/W, G/W C-Type: HCO Concerns: none 

Buffer (RMA): Class II for HCO greater of 100 feet or to the top of the side-slope break. 

Alternatives: ROD Buffer (RAW): no review needed Protection: Category A and C

Stream#: 5.1L.2R Class: II, IV Flagging: B/W, G/W C-Type: PAB, MMO Concerns: none

Buffer (RMA): Class I for PAB greater of 100 feet, flood plain, riparian vegetation or soils, or riparian associated 

wetland fens.

Alternatives: ROD Buffer (RAW): no review needed Protection: Category A and C

Stream#: 5.2L Class: II, IV Flagging: B/W, G/W C-Type: MMO, PAB, HCO 

Concerns: blowdown

Buffer (RMA): Class I greater of 120 feet (for MMO) or 100 feet (for PAB), flood plain, riparian vegetation or soils, 

or riparian associated wetland fens. 

Alternatives: ROD Buffer (RAW): no review needed Protection: Category A and C 

Stream#: 5.3L Class: II, IV Flagging: B/W, G/W C-Type: PAB, HCO Concerns: none

Buffer (RMA): Class I for PAB greater of 100 feet, flood plain, riparian vegetation or soils, or riparian associated 

wetland fens.

Alternatives: ROD Buffer (RAW): no review needed Protection: Category A and C

Stream#: 5.4L Class: II, IV Flagging: B/W, G/W C-Type: HCO Concerns: none 

Buffer (RMA): Class II for HCO greater of 100 feet or to the top of the side-slope break. 

Alternatives: ROD Buffer (RAW): no review needed Protection: Category A and C

Stream#: 5.6L Class: II, IV Flagging: B/W, G/W C-Type: HCO Concerns: none 

Buffer (RMA): Class II for HCO greater of 100 feet or to the top of the side-slope break. 

Alternatives: ROD Buffer (RAW): no review needed Protection: Category A and C

All other streams in unit: Class IV Flagging: G/W C-Type: HC and MM 

Concerns: none Buffer (RMA): none Protection: Category C

Temporary road (reopened decommissioned) for Unit 546: One Class III stream crossings. Crossings structures and 

locations will be approved by USFS, in consultation with fisheries biologist or hydrologist, prior to construction 

(BMP 14.17). During construction of temporary roads implement BMPs 12.17, 13.10, 13.11, 13.16, 14.3, and 14.5.

GEOLOGY/KARST: No Concerns

HERITAGE RESOURCES: This unit was investigated per the third amended interagency Programmatic Agreement 

(PA) for historic properties. As specified by the PA, any potential adverse effect on historic properties (if any) was 

mitigated and portions of the Area of Potential Effect will be monitored by a qualified heritage specialist during 

and/or after actual ground disturbance.

Appendix 1 - Unit Cards - 669 Appendix 1
SCENERY: Unit has 33 acres of Moderate SIO, 78 acres of Low SIO, and 24 acres of Very Low SIO. Most of the 

Moderate SIO is in the eastern end of the unit along the 30 Road. Use narrow corridors to minimize visibility in 

systematic thinning settings further west, where settings are within 1/4 mile of the NFS Road 3000000.

RECREATION: No Concerns

SOILS/WETLANDS: 

Slopes are estimated to be range about 15% to 75%, especially on the upper slopes. All slopes greater than 72% will 

be verified prior to implementation. Less than 2 acres have been affect by landslides. The soils and wetlands are 

suitable for a minimum of partial suspension cable yarding or shovel yarding and should follow R10 BMPs 12.5, 

13.2 and 13.9 and National Core BMPs Plan-2, Veg-2, Veg-4, Veg-5, and Veg-6. Follow shovel yarding guidelines 

outlined in the introductions to unit cards (R10 BMP 13.9 and National Core Veg-4). Partial harvest with groundbased removal and partial suspension thinning will meet soil quality standards.

There is about 1/2 acre of forested wetland/emergent short sedge complex in the north-central part of the unit and 30 

acres of forested wetland predominantly located in the eastern third of the unit (R10 BMP 12.5 and National Core 

BMPs AqEco-2 and AqEco-4).

WILDLIFE: 

Commercial thinning will enhance wildlife habitat near Little Ratz Harbor by improving forage availability and 

removing the stand for the stem exclusion phase for the duration of rotation (until it is harvested again). A road 

would be reconstructed to access the unit.

670 - Big Thorne Project Record of Decision Appendix 1
3000280

3000271

3000296

3023200

3000272

3000300

3000295

3000000

3000270

3023000

19R

1.10R

2

3 4

1

4

51

2.4R

2.2R.1L

4

1

5.1L.1L.1R

2.2R

1.10R.1L.1L

1.6R

3

5 0.1L

1.5L

1

1.11R

2.3R

4

2.1L

5.2L

1.3L

5.4L

5.1L.1L.1L

1.4R

51

5.1L.1R

1. A1.2R

1.1R

1.12R

5 . 1 L.2R

2.1

R

1.13R

1

2.2L

2

1.14R

5 1. L.1 R

3.2L

3

3.1L

5.1L

5.4 L

5.5L

2

2. 1 R.1L

1.10R.1R

2

5.6L

2

4.1L

. 5 1L.1R

4

5.1L.1L

3

2

5.5L

1.10R.1L

5.1L.1L

2.1R

1967

1994

1997

1993

1964

1998

1998

1964

1964

1965 1967

1964

1993

154

161

546

549

160

153

A

A

B

B

C

C

D

D

E

E

F

F

G

G

H

H

I

I

J

J

10 10

9 9

8 8

7 7

6 6

5 5

4 4

3 3

2 2

1 1

Unit Number 546 ROD VCU: 

0 500

Feet

Past Harvest

(Year Origin)

Unsuitable Soils

Riparian Management

Area

Slope > 72%

Other Ownership

Old Growth Habitat LUD

Recreation River LUD

Scenic River LUD

State Highway

National Forest System Road - Open

National Forest System Road - Stored

Non-National Forest 

System Road

Proposed Reconstructed Road

Proposed System Road 

(reopened Decommissioned)

Proposed Temporary Road 

(reopened Decommissioned)

Proposed System Road

Proposed Temporary

Road

Young Growth

Systematic Strip Thin

Uniform Crown Thin

Old Growth

Helicopter

Shovel or Cable

Partial Cut

Class 1 Stream

Class 2 Stream

Class 3 Stream

Class 4 Stream

Lake

100’ Contour

Eagle Nest Buffer

Legacy

Visual Buffer

Deferred (within

Original Unit

Reconnaissance

Area)

584

R:\projects_2010\BigThorneEIS\maps\Unitcards\ROD_YG.mxd 3 June 2013

RR

SR

Young Growth

Appendix 1 - Unit Cards - 671 Appendix 1
Unit 

Number: 547

Alternatives: ROD Total Unit 28.3

Acres: 

Prescription: Systematic and 

Crown Thinning

VCU 

Number: 584

Yarding System:

Cable, Shovel

Net Harvest

Volume 210

(MBF): 

LUD: Modified Landscape

Summary of Concerns, Responses, BMPs and Mitigation

SILVICULTURE: 

Existing Conditions: This unit lies entirely within Stand #5840100121. The stand origination date is 1964. This 

stand has not been pre-commercially thinned. The site potential appears to be high. The unit is in a successional 

stage of stem exclusion. This unit is in the Deer Winter Range landscape zone, and is located in the Ratz Harbor 

young-growth study area.

Silvicultural Objective/Desired Condition (Deer Winter Range):

The management goal of young-growth treatment in this landscape zone is to improve growth, productivity, and 

forest health, while managing for a sustained yield, even flow of an industrial wood supply and improving deer 

winter range conditions in treated stands for the remainder of the rotation.

Silvicultural Prescription: Intermediate Treatment Crown Thinning

Apply crown thinning at approximately stand age 50. Crown thinning should retain at least 50% of the existing 

pretreatment stand basal area at that time. Retain trees in a generally uniform pattern. Skips or thickets may be left 

where logging system difficulties occur, in portions of settings where windthrow risk is expected to be unacceptable 

after thinning like along exposed stand edges or knobs, and in any areas where wildlife dens or nests are found. 

Gaps may occur where cable corridors come together near landings or other areas where extra room is needed to 

facilitate yarding or meet specific wildlife objectives.

Silvicultural Prescription: Systematic Thinning

Apply systematic thinning strips in portions of the unit unsuitable for uniform thinning. Systematic thinning should 

be applied primarily in downhill settings where full suspension cannot be achieved or other areas where uniform 

thinning will result in unacceptable levels of residual tree damage or otherwise is operationally infeasible. 

Systematic thinning should remove all trees within corridors 20 to 60 feet wide depending on operational feasibility, 

visual concerns and /or windthrow potential. Maintain a 60-120 foot distance between cut corridors resulting in at 

least a 50% basal area retention. Where visuals are of concern, cut corridors should be kept to approximately 20 feet 

in width pending scenery direction. Although parallel strips are likely to be most common, there are options for fan 

shapes, depending on landing/road locations.

The treatments being proposed are based on the analysis of current data for this stand projected forward in time 

using growth modeling. Marking guidelines covering the specifics of the treatment, such as species to favor for 

retention will be developed at the time of treatment.

TIMBER/YARDING: Shovel and cable yarding to NFS road 3023000.

ENGINEERING/ROADS: Unit is accessed by reconstruction of NFS road 3023000, totaling 10,600 feet. See road 

card for information on NFS road.

BOTANY: No Concerns

INVASIVE SPECIES: No Concerns

FISHERIES: Streams are tributaries to Little Ratz Creek. Stream 1 is Little Ratz Creek.

Stream#: 1 Class: II Flagging: B/W C- Type: MCM, PAB, MMM Concerns: none 

Buffer (RMA): Class II greater of 100 feet (for PAB) or 120 feet (for MMM), flood plain, riparian vegetation or 

soils, or riparian associated wetland fens. Class II for MCM greater of 100 feet or to the top of the side-slope break. 

Alternatives: ROD Buffer (RAW): no review needed Protection: Category A

Stream#: 1.1L Class: II Flagging: B/W C- Type: PAB Concerns: none 

Buffer (RMA): Class II for MMS greater of 120 feet, flood plain, riparian vegetation or soils, or riparian associated 

wetland fens. 

Alternatives: ROD Buffer (RAW): no review needed Protection: Category A

All other streams in unit: Class IV Flagging: G/W C-Type: HC and MM 

Concerns: none Buffer (RMA): none Protection: Category C

GEOLOGY/KARST: No Concerns

HERITAGE RESOURCES: This unit was investigated per the third amended interagency Programmatic Agreement 

(PA) for historic properties. As specified by the PA, any potential adverse effect on historic properties (if any) was 

mitigated and portions of the Area of Potential Effect will be monitored by a qualified heritage specialist during 

672 - Big Thorne Project Record of Decision Appendix 1
and/or after actual ground disturbance.

SCENERY: Unit has 15 acres in Low SIO and 15 acres in Very Low SIO.

RECREATION: No Concerns

SOILS/WETLANDS: 

Slopes are estimated to be range about 25 to 80%. There is approximately 3/4 acre of alpine/subalpine wetland and 6 

acres of forested wetland in the central portion of the unit, near the southern unit boundary (R10 BMP 12.5 and 

National Core BMPs AqEco-2 and AqEco-4). The soils and wetlands are suitable for a minimum of partial 

suspension cable yarding or shovel yarding and should follow R10 BMPs 12.5, 13.2 and 13.9 and National Core 

BMPs Plan-2, Veg-2, Veg-4, Veg-5, and Veg-6. Follow shovel yarding guidelines outlined in the introductions to 

unit cards (R10 BMP 13.9 and National Core Veg-4). Partial harvest with ground-based removal and partial 

suspension thinning will meet soil quality standards.

WILDLIFE: 

Commercial thinning will enhance wildlife habitat near Little Creek by improving forage availability and removing 

the stand for the stem exclusion phase for the duration of rotation (until it is harvested again).

Appendix 1 - Unit Cards - 673 Appendix 1
3023000

3023300

3023000

15

20

14

3

13

1.2 L

11

12

11.1L

17

1

1.1L

15

16

10

1

1.1L

2

1

1966

1999

1999

1966

1966

1964

1999

158

547

A

A

B

B

C

C

D

D

E

E

F

F

G

G

H

H

I

I

J

J

10 10

9 9

8 8

7 7

6 6

5 5

4 4

3 3

2 2

1 1

Unit Number 547 ROD VCU: 

0 500

Feet

Past Harvest

(Year Origin)

Unsuitable Soils

Riparian Management

Area

Slope > 72%

Other Ownership

Old Growth Habitat LUD

Recreation River LUD

Scenic River LUD

State Highway

National Forest System Road - Open

National Forest System Road - Stored

Non-National Forest 

System Road

Proposed Reconstructed Road

Proposed System Road 

(reopened Decommissioned)

Proposed Temporary Road 

(reopened Decommissioned)

Proposed System Road

Proposed Temporary

Road

Young Growth

Systematic Strip Thin

Uniform Crown Thin

Old Growth

Helicopter

Shovel or Cable

Partial Cut

Class 1 Stream

Class 2 Stream

Class 3 Stream

Class 4 Stream

Lake

100’ Contour

Eagle Nest Buffer

Legacy

Visual Buffer

Deferred (within

Original Unit

Reconnaissance

Area)

584

R:\projects_2010\BigThorneEIS\maps\Unitcards\ROD_YG.mxd 3 June 2013

RR

SR

Young Growth

674 - Big Thorne Project Record of Decision Appendix 1
Unit 

Number: 549

Alternatives: ROD Total Unit 47.3

Acres: 

Prescription: Systematic and 

Crown Thinning

VCU 

Number: 584

Yarding System:

Cable, Shovel

Net Harvest

Volume 346

(MBF): 

LUD: Modified Landscape

Summary of Concerns, Responses, BMPs and Mitigation

SILVICULTURE: 

Existing Conditions: This unit lies entirely within Stand #5840100524. The stand origination date is 1965. 

Approximately 17% of the stand area has been pre-commercially thinned, which was completed in 2005. The site 

potential appears to be medium. The unit is in a successional stage of stem exclusion. This unit lies within the Deer 

Winter Range Landscape Zone, and is located in the Ratz Harbor young-growth study area.

A Tongass Wide Young Growth Study site (POW Little Ratz Experiment #4) is along the the southwestern 

boundary. Protection of this site is required. Contact the Forestry Sciences Lab in Juneau for additional information.

Silvicultural Objective/Desired Condition (Deer Winter Range):

The management goal of young-growth treatment in this landscape zone is to improve growth, productivity, and 

forest health, while managing for a sustained yield, even flow of an industrial wood supply and improving deer 

winter range conditions in treated stands for the remainder of the rotation.

Silvicultural Prescription: Intermediate Treatment Crown Thinning

Apply crown thinning at approximately stand age 50. Crown thinning should retain at least 50% of the existing 

pretreatment stand basal area at that time. Retain trees in a generally uniform pattern. Skips or thickets may be left 

where logging system difficulties occur, in portions of settings where windthrow risk is expected to be unacceptable 

after thinning like along exposed stand edges or knobs, and in any areas where wildlife dens or nests are found. 

Gaps may occur where cable corridors come together near landings or other areas where extra room is needed to 

facilitate yarding or meet specific wildlife objectives.

Silvicultural Prescription: Systematic Thinning

Apply systematic thinning strips in portions of the unit unsuitable for uniform thinning. Systematic thinning should 

be applied primarily in downhill settings where full suspension cannot be achieved or other areas where uniform 

thinning will result in unacceptable levels of residual tree damage or otherwise is operationally infeasible. 

Systematic thinning should remove all trees within corridors 20 to 60 feet wide depending on operational feasibility, 

visual concerns and /or windthrow potential. Maintain a 60-120 foot distance between cut corridors resulting in at 

least a 50% basal area retention. Where visuals are of concern, cut corridors should be kept to approximately 20 feet 

in width pending scenery direction. Although parallel strips are likely to be most common, there are options for fan 

shapes, depending on landing/road locations.

The treatments being proposed are based on the analysis of current data for this stand projected forward in time

using growth modeling. Marking guidelines covering the specifics of the treatment, such as species to favor for 

retention will be developed at the time of treatment.

TIMBER/YARDING: Cable and shovel yarding to NFS road 3000300.

ENGINEERING/ROADS: No proposed road construction or reconstruction.

BOTANY: No Concerns

INVASIVE SPECIES: No Concerns

FISHERIES: Streams are tributaries to Little Ratz Creek and Little Ratz Harbor. 

Stream#: 2 Class: II, III, IV Flagging: B/W, O/W, G/W C-Type: HCM, HCO Concerns: erosion

Buffer (RMA): Class II for HCM greater of 100 feet or to the top of the side-slope break. 

Alternatives: ROD Buffer (RAW): no review needed Protection: Category A, B and C

Stream#: 2.1R Class: II, IV Flagging: B/W, G/W C-Type: HCO Concerns: none

Buffer (RMA): Class II for HCO greater of 100 feet or the top of the side-slope break. 

Alternatives: ROD Buffer (RAW): no review needed Protection: Category A and C

Stream#: 2.2R Class: II, IV Flagging: B/W, G/W C-Type: HCO Concerns: blowdown

Buffer (RMA): Class II for HCO greater of 100 feet or the top of the side-slope break. 

Alternatives: ROD Buffer (RAW): no review needed Protection: Category A and C

Stream#: 3 Class: II, IV Flagging: B/W, G/W C-Type: HCO Concerns: none

Buffer (RMA): Class II for HCO greater of 100 feet or the top of the side-slope break. 

Appendix 1 - Unit Cards - 675 Appendix 1
Alternatives: ROD Buffer (RAW): no review needed Protection: Category A and C

Stream#: 4/51 Class: II, III, IV Flagging: B/W, O/W, G/W C-Type: MMO, HCM, HCO Concerns: erosion

Buffer (RMA): Class I for MMO greater of 120 feet, flood plain, riparian vegetation or soils, or riparian associated 

wetland fens. Class II for HCM greater of 100 feet or to the top of the side-slope break. 

Alternatives: ROD Buffer (RAW): no review needed Protection: Category A, B and C

All other streams in unit: Class IV Flagging: G/W C-Type: HC and MM 

Concerns: none Buffer (RMA): none Protection: Category C

GEOLOGY/KARST: No Concerns

HERITAGE RESOURCES: This unit was investigated per the third amended interagency Programmatic Agreement 

(PA) for historic properties. As specified by the PA, any potential adverse effect on historic properties (if any) was 

mitigated and portions of the Area of Potential Effect will be monitored by a qualified heritage specialist during 

and/or after actual ground disturbance.

SCENERY: Unit has 54 acres of Low SIO and 25 acres of Very Low SIO. In the two easternmost systematic 

thinning settings, use narrow corridors to minimize visibility, where settings are relatively close to the 30 Road.

RECREATION: No Concerns

SOILS/WETLANDS: Slopes are estimated to range between 15% and close to 100%. All slopes greater than 72% 

will be verified prior to implementation. There are approximately 68 acres of forested wetland in all but the 

southern end of the unit ((R10 BMP 12.5 and National Core BMPs AqEco-2 and AqEco-4). The soils and wetlands 

are suitable for a minimum of partial suspension cable yarding or shovel yarding and should follow R10 BMPs 12.5, 

13.2 and 13.9 and National Core BMPs Plan-2, Veg-2, Veg-4, Veg-5, and Veg-6. Follow shovel yarding guidelines 

outlined in the introductions to unit cards (R10 BMP 13.9 and National Core Veg-4). Partial harvest with groundbased removal and partial suspension thinning will meet soil quality standards.

WILDLIFE: Commercial thinning will enhance wildlife habitat near Little Ratz Harbor/Little Creek by improving 

forage availability and removing the stand for the stem exclusion phase for the duration of rotation (until it is 

harvested again).

676 - Big Thorne Project Record of Decision Appendix 1
3000300

3000295

3000000

3000296

2.2R.1L

2

1.10R

1

1.10R.2R

2.4R

1.10R.1L

1.10R

2.3R.1L

2.2R

1.10R.1L.1L

3

2.3R

1.11R

2.3R

54

51.1L

51

1.12R

50.1L

52

53

2.1R

1.13R

51

2.1R.1L

1.10 R.1R

4

2.1R

1959

1998

1997

1965

549

550

160

161

A

A

B

B

C

C

D

D

E

E

F

F

G

G

H

H

I

I

J

J

10 10

9 9

8 8

7 7

6 6

5 5

4 4

3 3

2 2

1 1

Unit Number 549 ROD VCU: 

0 500

Feet

Past Harvest

(Year Origin)

Unsuitable Soils

Riparian Management

Area

Slope > 72%

Other Ownership

Old Growth Habitat LUD

Recreation River LUD

Scenic River LUD

State Highway

National Forest System Road - Open

National Forest System Road - Stored

Non-National Forest 

System Road

Proposed Reconstructed Road

Proposed System Road 

(reopened Decommissioned)

Proposed Temporary Road 

(reopened Decommissioned)

Proposed System Road

Proposed Temporary

Road

Young Growth

Systematic Strip Thin

Uniform Crown Thin

Old Growth

Helicopter

Shovel or Cable

Partial Cut

Class 1 Stream

Class 2 Stream

Class 3 Stream

Class 4 Stream

Lake

100’ Contour

Eagle Nest Buffer

Legacy

Visual Buffer

Deferred (within

Original Unit

Reconnaissance

Area)

584

R:\projects_2010\BigThorneEIS\maps\Unitcards\ROD_YG.mxd 3 June 2013

RR

SR

Young Growth

Appendix 1 - Unit Cards - 677 Appendix 1
Unit 

Number: 550

Alternatives: ROD Total Unit 150.7

Acres: 

Prescription: Systematic and 

Crown Thinning

VCU 

Number: 583

Yarding System:

Cable, Shovel

Net Harvest

Volume 1111

(MBF): 

LUD: Modified Landscape

Summary of Concerns, Responses, BMPs and Mitigation

SILVICULTURE: 

Existing Conditions: This unit lies entirely within Stand #5830200567. The stand origination date is 1959. This 

portion of the stand has not been pre-commercially thinned. The site potential appears to be primarily high, except 

for small areas of medium. This unit is in a successional stage of stem exclusion. Approximately 162 acres of the 

unit lies within the Deer Winter Range landscape zone. The remaining approximately 2 acres is in the 

Uplands/Mountain Slopes landscape zone. This unit is located in the Ratz Harbor young-growth study area.

Silvicultural Objective/Desired Condition (Deer Winter Range):

The management goal of young-growth treatment in this landscape zone is to improve growth, productivity, and 

forest health, while managing for a sustained yield, even flow of an industrial wood supply and improving deer 

winter range conditions in treated stands for the remainder of the rotation.

Silvicultural Objective/Desired Condition (Uplands/Mountain Slopes):

The management goal of young-growth treatments in this landscape zone is to manage for a sustained yield, even 

flow of an industrial wood supply, while meeting multiple resource objectives, wherever possible. Treatments 

should improve growth and productivity, improve forest health, and promote forest stand conditions that will 

provide a diverse array of marketable forest products.

Silvicultural Prescription: Intermediate Treatment Crown Thinning

Apply crown thinning at approximately stand age 50. Crown thinning should retain at least 50% of the existing 

pretreatment stand basal area at that time. Retain trees in a generally uniform pattern. Skips or thickets may be left 

where logging system difficulties occur, in portions of settings where windthrow risk is expected to be unacceptable 

after thinning like along exposed stand edges or knobs, and in any areas where wildlife dens or nests are found. 

Gaps may occur where cable corridors come together near landings or other areas where extra room is needed to 

facilitate yarding or meet specific wildlife objectives.

Silvicultural Prescription: Systematic Thinning

Apply systematic thinning strips in portions of the unit unsuitable for uniform thinning. Systematic thinning should 

be applied primarily in downhill settings where full suspension cannot be achieved or other areas where uniform 

thinning will result in unacceptable levels of residual tree damage or otherwise is operationally infeasible. 

Systematic thinning should remove all trees within corridors 20 to 60 feet wide depending on operational feasibility, 

visual concerns and /or windthrow potential. Maintain a 60-120 foot distance between cut corridors resulting in at 

least a 50% basal area retention. Where visuals are of concern, cut corridors should be kept to approximately 20 feet 

in width pending scenery direction. Although parallel strips are likely to be most common, there are options for fan 

shapes, depending on landing/road locations.

The treatments being proposed are based on the analysis of current data for this stand projected forward in time 

using growth modeling. Marking guidelines covering the specifics of the treatment, such as species to favor for 

retention will be developed at the time of treatment.

TIMBER/YARDING: Cable and shovel yarding to NFS roads 3023500 and 3023510.

ENGINEERING/ROADS: Unit is accessed by reconstruction of NFS road 3023510, totaling 1,000 feet. 

BOTANY: No Concerns

INVASIVE SPECIES: No Concerns

FISHERIES: Streams are tributaries to Big Lake and Ratz Creek. Lake 1 is Big Lake and Stream L1 is Ratz Creek.

Stream#: Lake 1 Class: I Flagging: B/W C-Type: L Concerns: none 

Buffer (RMA): Class I for Lake 1 greater of 100 horizontal feet or to the extent of flood plain, riparian vegetation or 

soils, riparian associated wetland fens, or height of one site potential tree.

Alternatives: ROD Buffer (RAW): no review needed Protection: Category A

Stream#: L1 Class: I Flagging: B/W C-Type: MMS Concerns: none

Buffer (RMA): Class I for MMS greater of 120 feet, flood plain, riparian vegetation or soils, or riparian associated 

wetland fens.

Alternatives: ROD Buffer (RAW): no review needed Protection: Category A

678 - Big Thorne Project Record of Decision Appendix 1
Stream#: 1 Class: II Flagging: B/W C-Type: HCO Concerns: none

Buffer (RMA): Class II for HCO greater of 100 feet or to the top of the side-slope break. 

Alternatives: ROD Buffer (RAW): no review needed Protection: Category A

Stream#: 1.1R Class: II Flagging: B/W C-Type: HCO Concerns: none

Buffer (RMA): Class II for HCO greater of 100 feet or to the top of the side-slope break. 

Alternatives: ROD Buffer (RAW): no review needed Protection: Category A

Stream#: 2 Class: I Flagging: B/W C-Type: PAS Concerns: none

Buffer (RMA): Class I for PAS greater of 100 feet, flood plain, riparian vegetation or soils, or riparian associated 

wetland fens.

Alternatives: ROD Buffer (RAW): no review needed Protection: Category A

Stream#: 2.1R Class: I, II Flagging: B/W C-Type: PAO, HCO Concerns: none

Buffer (RMA): Class I for PAS greater of 100 feet, flood plain, riparian vegetation or soils, or riparian associated 

wetland fens.

Alternatives: ROD Buffer (RAW): no review needed Protection: Category A

Stream#: 2.2R Class: I, II, IV Flagging: B/W, G/W C-Type: PAO, HCO Concerns: none

Buffer (RMA): Class II for HCO greater of 100 feet or to the top of the side-slope break. 

Alternatives: ROD Buffer (RAW): no review needed Protection: Category A and C

Stream#: 2.3R Class: I, II Flagging: B/W C-Type: PAO, HCO Concerns: none

Buffer (RMA): Class I for PAS greater of 100 feet, flood plain, riparian vegetation or soils, or riparian associated 

wetland fens. Class II for HCO greater of 100 feet or to the top of the side-slope break. 

Alternatives: ROD Buffer (RAW): no review needed Protection: Category A

Stream#: 2.3R.1L Class: II, IV Flagging: B/W, G/W C-Type: HCO Concerns: none

Buffer (RMA): Class II for HCO greater of 100 feet or to the top of the side-slope break. 

Alternatives: ROD Buffer (RAW): no review needed Protection: Category A and C

Stream#: 2.4L Class: II Flagging: B/W C-Type: MMO Concerns: none

Buffer (RMA): Class I for MMO greater of 120 feet, flood plain, riparian vegetation or soils, or riparian associated 

wetland fens.

Alternatives: ROD Buffer (RAW): no review needed Protection: Category A

Stream#: 3.1L Class: I, II Flagging: B/W C-Type: PAB, AFH Concerns: none

Buffer (RMA): Class I for PAB greater of 100 feet, flood plain, riparian vegetation or soils, or riparian associated 

wetland fens. Class II for AFH greater of 140 feet or active portion of the alluvial fan.

Alternatives: ROD Buffer (RAW): no review needed Protection: Category A

Stream#: 3.2L Class: I, II, IV Flagging: B/W, G/W C-Type: PAS, AFH, HCO Concerns: none

Buffer (RMA): Class I for PAS greater of 100 feet, flood plain, riparian vegetation or soils, or riparian associated 

wetland fens. Class II for AFH greater of 140 feet or active portion of the alluvial fan.

Alternatives: ROD Buffer (RAW): no review needed Protection: Category A and C

Stream#: 3.3L Class: I, II, IV Flagging: B/W, G/W C-Type: HCO, AFH Concerns: none

Buffer (RMA): Class I for HCO greater of 100 feet or to the top of the side-slope break. Class II for AFH greater of 

140 feet or active portion of the alluvial fan.

Alternatives: ROD Buffer (RAW): no review needed Protection: Category A and C

Stream#: 3.3L.1R Class: II, IV Flagging: B/W, G/W C-Type: AFH, HCO Concerns: none

Buffer (RMA): Class II for AFH greater of 140 feet or active portion of the alluvial fan. 

Alternatives: ROD Buffer (RAW): no review needed Protection: Category A and C

Stream#: 3.4L Class: I Flagging: B/W C-Type: AFH Concerns: none

Buffer (RMA): Class II for AFH greater of 140 feet or active portion of the alluvial fan. 

Alternatives: ROD Buffer (RAW): no review needed Protection: Category A

Stream#: 3.5L Class: II, IV Flagging: B/W, G/W C-Type: AFH Concerns: none

Appendix 1 - Unit Cards - 679 Appendix 1
Buffer (RMA): Class II for AFH greater of 140 feet or active portion of the alluvial fan. 

Alternatives: ROD Buffer (RAW): no review needed Protection: Category A and C

Stream#: 3.6L Class: II, IV Flagging: B/W, G/W C-Type: HCO Concerns: none

Buffer (RMA): Class II for HCO greater of 100 feet or to the top of the side-slope break. 

Alternatives: ROD Buffer (RAW): no review needed Protection: Category A and C

Stream#: 20 Class: I, IV Flagging: B/W, G/W C-Type: HCO Concerns: none

Buffer (RMA): Class I for HCO greater of 100 feet or to the top of the side-slope break. 

Alternatives: ROD Buffer (RAW): no review needed Protection: Category A and C

Stream#: 20.1R Class: I, IV Flagging: B/W, G/W C-Type: HCO Concerns: none

Buffer (RMA): Class I for HCO greater of 100 feet or to the top of the side-slope break. 

Alternatives: ROD Buffer (RAW): no review needed Protection: Category A and C

Stream#: 20.2R Class: I, IV Flagging: B/W, G/W C-Type: HCO Concerns: none

Buffer (RMA): Class I for HCO greater of 100 feet or to the top of the side-slope break. 

Alternatives: ROD Buffer (RAW): no review needed Protection: Category A and C

Stream#: 21 Class: I Flagging: B/W C-Type: HCO Concerns: none

Buffer (RMA): Class I for HCO greater of 100 feet or to the top of the side-slope break. 

Alternatives: ROD Buffer (RAW): no review needed Protection: Category A

Stream#: 22 Class: I, II, IV Flagging: B/W, G/W C-Type: AFH, HCO Concerns: blowdown

Buffer (RMA): Class I for AFH greater of 140 feet or active portion of the alluvial fan. Class II for HCO greater of 

100 feet or to the top of the side-slope break. 

Alternatives: ROD Buffer (RAW): no review needed Protection: Category A and C

Stream#: 22.1L Class: II, IV Flagging: B/W, G/W C-Type: HCO Concerns: blowdown

Buffer (RMA): Class II for HCO greater of 100 feet or to the top of the side-slope break. 

Alternatives: ROD Buffer (RAW): no review needed Protection: Category A and C

All other streams in unit: Class IV Flagging: G/W C-Type: HC or MM 

Concerns: none Buffer (RMA): none Protection: Category C

GEOLOGY/KARST: No Concerns

HERITAGE RESOURCES: This unit was investigated per the third amended interagency Programmatic Agreement 

(PA) for historic properties. As specified by the PA, any potential adverse effect on historic properties (if any) was 

mitigated and portions of the Area of Potential Effect will be monitored by a qualified heritage specialist during 

and/or after actual ground disturbance.

SCENERY: Unit has 141 acres of Low SIO and 23 acres of Very Low SIO. In the easternmost systematic thinning 

setting, use narrow corridors to minimize visibility.

RECREATION: Unit is near mouth of Big Lake. Maintain fishing access to Big Lake and outlet stream.

SOILS/WETLANDS: Slopes are estimated to range between 15% to near 100%. All slopes greater than 72% will be 

verified prior to implementation. Debris avalanches are mapped near the southwest corner of the unit. There are 

approximately 18 acres of forested wetland/emergent short sedge complex, 6 acres of emergent short sedge wetland 

and 48 acres of forested wetland in the northeastern half of the unit (R10 BMP 12.5 and National Core BMPs 

AqEco-2 and AqEco-4). The soils and wetlands are suitable for a minimum of partial suspension cable yarding or 

shovel yarding and should follow R10 BMPs 12.5, 13.2 and 13.9 and National Core BMPs Plan-2, Veg-2, Veg-4, 

Veg-5, and Veg-6. Follow shovel yarding guidelines outlined in the introductions to unit cards (R10 BMP 13.9 and 

National Core Veg-4). Partial harvest with ground-based removal and partial suspension thinning will meet soil 

quality standards.

WILDLIFE: Commercial thinning will enhance wildlife habitat near Ratz Harbor/Big Lake by improving forage 

availability and removing the stand for the stem exclusion phase for the duration of rotation (until it is harvested 

again). A road would be reconstructed to access part of the unit. This unit will enhance a low elevation travel route.

680 - Big Thorne Project Record of Decision Appendix 1
3000000

3000300

3023500

3023521

3000000

3000302

3000295

3000296

3023520

3023510

3000301

3023510

2.4R

21

5

4

5.1L

2.4R

2.3R

2 .1R

2

1.10R

1

1

2

3

22.1L

22

19

3.2L

2.2R.1L

1.10R.1L

18

1.10R

3.6L

3.3L.1R

3.4L

2.2R

1.10R.1L.1L

20

3

20.2R

1.11R

2.3R

3

20.1R

19.1L

2.3R.1L

19.2L

1.1L

2

54

51.1L

51

1.6L

1.12R

50.1L

1. 2R

1.1R

52

53

2.1R

3.1R

1.10R

1.13R

1

1.6L

3.3L

1.4L

2.1R

2.2R

1.6L.1R

89

2

51

1. 3L

2.1 R.1L

5.2L

3

2.3R

1.10R.2R

3.1L

1

1.10R.1R

19.2L

20. 2 R

1.9R

4

3.5L

1999

1965

1995

1959

2006 1995

1998

1960

1999

1997

1965

1960

1963

1960

161

171

172

549

550

551

562

160

159

A

A

B

B

C

C

D

D

E

E

F

F

G

G

H

H

I

I

J

J

10 10

9 9

8 8

7 7

6 6

5 5

4 4

3 3

2 2

1 1

Unit Number 550 ROD VCU: 

0 500

Feet

Past Harvest

(Year Origin)

Unsuitable Soils

Riparian Management

Area

Slope > 72%

Other Ownership

Old Growth Habitat LUD

Recreation River LUD

Scenic River LUD

State Highway

National Forest System Road - Open

National Forest System Road - Stored

Non-National Forest 

System Road

Proposed Reconstructed Road

Proposed System Road 

(reopened Decommissioned)

Proposed Temporary Road 

(reopened Decommissioned)

Proposed System Road

Proposed Temporary

Road

Young Growth

Systematic Strip Thin

Uniform Crown Thin

Old Growth

Helicopter

Shovel or Cable

Partial Cut

Class 1 Stream

Class 2 Stream

Class 3 Stream

Class 4 Stream

Lake

100’ Contour

Eagle Nest Buffer

Legacy

Visual Buffer

Deferred (within

Original Unit

Reconnaissance

Area)

583

R:\projects_2010\BigThorneEIS\maps\Unitcards\ROD_YG.mxd 3 June 2013

RR

SR

Young Growth

Appendix 1 - Unit Cards - 681 Appendix 1
Unit 

Number: 551

Alternatives: ROD Total Unit 157.1

Acres: 

Prescription: Crown and 

Systematic Thinning

VCU 

Number: 583

Yarding System:

Cable, Shovel

Net Harvest

Volume 1026

(MBF): 

LUD: Modified Landscape

Summary of Concerns, Responses, BMPs and Mitigation

SILVICULTURE: 

Existing Conditions: This unit lies entirely within Stand #5830200567. The stand origination date is 1959. 

Approximately 2% of the stand area has been pre-commercially thinned, which was completed in 2006. The site 

potential appears to range from medium to high. This unit is in a successional stage of stem exclusion. 

Approximately 153 acres of the unit lies within the Deer Winter Range landscape zone. The remaining 

approximately 18 acres is in the Uplands/Mountain Slopes landscape zone. This unit is located in the Ratz Harbor 

young-growth study area.

Silvicultural Objective/Desired Condition (Deer Winter Range):

The management goal of young-growth treatment in this landscape zone is to improve growth, productivity, and 

forest health, while managing for a sustained yield, even flow of an industrial wood supply and improving deer 

winter range conditions in treated stands for the remainder of the rotation.

Silvicultural Objective/Desired Condition (Uplands/Mountain Slopes):

The management goal of young-growth treatments in this landscape zone is to manage for a sustained yield, even 

flow of an industrial wood supply, while meeting multiple resource objectives, wherever possible. Treatments 

should improve growth and productivity, improve forest health, and promote forest stand conditions that will 

provide a diverse array of marketable forest products.

Silvicultural Prescription: Intermediate Treatment Crown Thinning

Apply crown thinning at approximately stand age 50. Crown thinning should retain at least 50% of the existing 

pretreatment stand basal area at that time. Retain trees in a generally uniform pattern. Skips or thickets may be left 

where logging system difficulties occur, in portions of settings where windthrow risk is expected to be unacceptable 

after thinning like along exposed stand edges or knobs, and in any areas where wildlife dens or nests are found. 

Gaps may occur where cable corridors come together near landings or other areas where extra room is needed to 

facilitate yarding or meet specific wildlife objectives.

Silvicultural Prescription: Systematic Thinning

Apply systematic thinning strips in portions of the unit unsuitable for uniform thinning. Systematic thinning should 

be applied primarily in downhill settings where full suspension cannot be achieved or other areas where uniform 

thinning will result in unacceptable levels of residual tree damage or otherwise is operationally infeasible. 

Systematic thinning should remove all trees within corridors 20 to 60 feet wide depending on operational feasibility, 

visual concerns and /or windthrow potential. Maintain a 60-120 foot distance between cut corridors resulting in at 

least a 50% basal area retention. Where visuals are of concern, cut corridors should be kept to approximately 20 feet 

in width pending scenery direction. Although parallel strips are likely to be most common, there are options for fan 

shapes, depending on landing/road locations. 

The treatments being proposed are based on the analysis of current data for this stand projected forward in time 

using growth modeling. Marking guidelines covering the specifics of the treatment, such as species to favor for 

retention will be developed at the time of treatment.

TIMBER/YARDING: Shovel and cable yarding to NFS road 3023500.

ENGINEERING/ROADS: No proposed road construction or reconstruction.

BOTANY: No Concerns

INVASIVE SPECIES: An infestation of orange hawkweed is known along the existing road adjacent to the unit. 

Monitoring is recommended to ensure that the infestation does not spread as a result of the project activities.

FISHERIES: Streams are tributaries to Big Lake and Ratz Creek. Lake 1 is Big Lake.

Stream#: Lake 1 Class: I Flagging: B/W C-Type: L Concerns: none 

Buffer (RMA): Class I for Lake 1 greater of 100 horizontal feet or to the extent of flood plain, riparian vegetation or 

soils, riparian associated wetland fens, or height of one site potential tree.

Alternatives: ROD Buffer (RAW): no review needed Protection: Category A

Stream#: 9 Class: I, II, IV Flagging: B/W, G/W C-Type: AFM, HCO Concerns: none

Buffer (RMA): Class I for AFM greater of 140 feet or active portion of the alluvial fan. Class II for HCO greater of 

100 feet or to the top of the side-slope break. 

682 - Big Thorne Project Record of Decision Appendix 1
Alternatives: ROD Buffer (RAW): no review needed Protection: Category A and C

Stream#: 10 Class: II, III Flagging: B/W, O/W C-Type: HCO, HCD Concerns: blowdown 

Buffer (RMA): Class II for HCO greater of 100 feet or to the top of the side-slope break. Class III for HCD to the 

top of the side-slope break.

Alternatives: ROD Buffer (RAW): no review needed Protection: Category A and B 

Stream#: 11 Class: II, IV Flagging: B/W, G/W C-Type: AFO, HCO Concerns: blowdown

Buffer (RMA): Class II for AFO greater of 140 feet or active portion of the alluvial fan. Class II for HCO greater of 

100 feet or to the top of the side-slope break. 

Alternatives: ROD Buffer (RAW): no review needed Protection: Category A and C

Stream#: 11.1R Class: II, IV Flagging: B/W, G/W C-Type: HCO Concerns: none

Buffer (RMA): Class II for HCO greater of 100 feet or to the top of the side-slope break. 

Alternatives: ROD Buffer (RAW): no review needed Protection: Category A and C

Stream#: 13/1 Class: II, III Flagging: B/W, O/W C-Type: HCO, HCM, HCD Concerns: blowdown

Buffer (RMA): Class II for HCO greater of 100 feet or to the top of the side-slope break. Class III for HCO, HCM 

and HCD to the top of the side-slope break.

Alternatives: ROD Buffer (RAW): no review needed Protection: Category A and B 

Stream#: 13/2 Class: III, IV Flagging: O/W, G/W C-Type: HCD, HCO Concerns: none

Buffer (RMA): Class III for HCD to the top of the side-slope break.

Alternatives: ROD Buffer (RAW): no review needed Protection: Category B and C

Stream#:18 Class: II, IV Flagging: B/W, G/W C-Type: AFO, HCO Concerns: none 

Buffer (RMA): Class II for AFM greater of 140 feet or active portion of the alluvial fan.

Alternatives: ROD Buffer (RAW): no review needed Protection: Category A and C

Stream#: 19 Class: I, IV Flagging: B/W, G/W C-Type: HCO Concerns: none

Buffer (RMA): Class II for HCO greater of 100 feet or to the top of the side-slope break. 

Alternatives: ROD Buffer (RAW): no review needed Protection: Category A and C 

Stream#: 19.1L Class: II Flagging: B/W C-Type: HCO Concerns: none 

Buffer (RMA): Class II for HCV greater of 100 feet or the top of the side-slope break.

Alternatives: ROD Buffer (RAW): no review needed Protection: Category A

Stream#: 19.2L Class: I, IV Flagging: B/W, G/W C-Type: HCO Concerns: none

Buffer (RMA): Class II for HCO greater of 100 feet or to the top of the side-slope break. 

Alternatives: ROD Buffer (RAW): no review needed Protection: Category A and C

Stream#: 20 Class: I, IV Flagging: B/W, G/W C-Type: HCO Concerns: none

Buffer (RMA): Class I for HCO greater of 100 feet or to the top of the side-slope break. 

Alternatives: ROD Buffer (RAW): no review needed Protection: Category A and C

Stream#: 20.1R Class: I, IV Flagging: B/W, G/W C-Type: HCO Concerns: none

Buffer (RMA): Class I for HCO greater of 100 feet or to the top of the side-slope break. 

Alternatives: ROD Buffer (RAW): no review needed Protection: Category A and C

Stream#: 20.2R Class: I, IV Flagging: B/W, G/W C-Type: HCO Concerns: none

Buffer (RMA): Class I for HCO greater of 100 feet or to the top of the side-slope break. 

Alternatives: ROD Buffer (RAW): no review needed Protection: Category A and C

All other streams in unit: Class IV Flagging: G/W C-Type: HC or MM 

Concerns: none Buffer (RMA): none Protection: Category C

GEOLOGY/KARST: No Concerns

HERITAGE RESOURCES: 

This unit was investigated per the third amended interagency Programmatic Agreement (PA) for historic properties. 

As specified by the PA, any potential adverse effect on historic properties (if any) was mitigated and portions of the 

Appendix 1 - Unit Cards - 683 Appendix 1
Area of Potential Effect will be monitored by a qualified heritage specialist during and/or after actual ground 

disturbance.

SCENERY: 

Unit has 118 acres in Low SIO and 54 acres in Very Low SIO. About 2/3 of the unit is planned for uniform thinning 

and 1/3 is planned for systematic thinning.

RECREATION: 

Unit is borders the Big Lake RMA and is between NFS Road 3023500. Maintain fishing access to Big Lake to the 

extent practical, during and after harvest.

SOILS/WETLANDS: 

Slopes are estimated to range from about 20% to over 100%. All slopes greater than 72% will be verified prior to 

implementation. Debris avalanches initiated in 1997 and transect through the unit.There are approximately 5 acres

of forested wetland/emergent short sedge complex and 18 acres of forested wetland near the northern edge of the 

unit (R10 BMP 12.5 and National Core BMPs AqEco-2 and AqEco-4). The soils and wetlands are suitable for a 

minimum of partial suspension cable yarding or shovel yarding and should follow R10 BMPs 12.5, 13.2 and 13.9 

and National Core BMPs Plan-2, Veg-2, Veg-4, Veg-5, and Veg-6. Follow shovel yarding guidelines outlined in the 

introductions to unit cards (R10 BMP 13.9 and National Core Veg-4). Partial harvest with ground-based removal 

and partial suspension thinning will meet soil quality standards.

WILDLIFE: 

Commercial thinning will enhance wildlife habitat near Big Lake by improving forage availability and removing the 

stand for the stem exclusion phase for the duration of rotation (until it is harvested again). This unit will enhance a 

low elevation travel route.

684 - Big Thorne Project Record of Decision Appendix 1
3023521

3023520

3023520

3023500

3023300

3023530

3023500

4.2R

11

23

20

19.2L

11.1R

20.2 R

2.7L

3.5L

9.1L

2

19.1L

1

31

2.2R

21

4

22.1L

22

19

3

9

3.3L.1R

1

3 2. R

18

3.6L

2.1 R

2

3.4L

20

20

13

20 .2R

15

12

1 2

2

20.1R

2.6L

3.1 R

3.1R

11.R

3

2.4L

12

32

19.2L

21

2.2L

2.3L

10

2.1L

14

11

3

2.5L.1R

22

16

11.1L

1

1 7

10

24

11

2.5L

1999

1959

1963

1960

1960

1999

1966

1995

1995

1964

1966

159

547

550

551

552

162

162

158

A

A

B

B

C

C

D

D

E

E

F

F

G

G

H

H

I

I

J

J

10 10

9 9

8 8

7 7

6 6

5 5

4 4

3 3

2 2

1 1

Unit Number 551 ROD VCU: 

0 500

Feet

Past Harvest

(Year Origin)

Unsuitable Soils

Riparian Management

Area

Slope > 72%

Other Ownership

Old Growth Habitat LUD

Recreation River LUD

Scenic River LUD

State Highway

National Forest System Road - Open

National Forest System Road - Stored

Non-National Forest 

System Road

Proposed Reconstructed Road

Proposed System Road 

(reopened Decommissioned)

Proposed Temporary Road 

(reopened Decommissioned)

Proposed System Road

Proposed Temporary

Road

Young Growth

Systematic Strip Thin

Uniform Crown Thin

Old Growth

Helicopter

Shovel or Cable

Partial Cut

Class 1 Stream

Class 2 Stream

Class 3 Stream

Class 4 Stream

Lake

100’ Contour

Eagle Nest Buffer

Legacy

Visual Buffer

Deferred (within

Original Unit

Reconnaissance

Area)

583

R:\projects_2010\BigThorneEIS\maps\Unitcards\ROD_YG.mxd 3 June 2013

RR

SR

Young Growth

Appendix 1 - Unit Cards - 685 Appendix 1
Unit 

Number: 552

Alternatives: ROD Total Unit 24.0

Acres: 

Prescription: Systematic and 

Crown Thinning

VCU 

Number: 583

Yarding System:

Cable, Shovel

Net Harvest

Volume 176

(MBF): 

LUD: Modified Landscape

Summary of Concerns, Responses, BMPs and Mitigation

SILVICULTURE: 

Existing Conditions: This unit lies entirely within Stand #5830200567. The stand origination date is 1959. This 

portion of the stand has not been pre-commercially thinned. The site potential appears to be medium. The unit is in a 

successional stage of stem exclusion. This unit lies within the Deer Winter Range landscape zone, and is located in 

the Ratz Harbor young-growth study area.

Silvicultural Objective/Desired Condition (Deer Winter Range):

The management goal of young-growth treatment in this landscape zone is to improve growth, productivity, and 

forest health, while managing for a sustained yield, even flow of an industrial wood supply and improving deer 

winter range conditions in treated stands for the remainder of the rotation.

Silvicultural Prescription: Intermediate Treatment Crown Thinning

Apply crown thinning at approximately stand age 50. Crown thinning should retain at least 50% of the existing 

pretreatment stand basal area at that time. Retain trees in a generally uniform pattern. Skips or thickets may be left 

where logging system difficulties occur, in portions of settings where windthrow risk is expected to be unacceptable 

after thinning like along exposed stand edges or knobs, and in any areas where wildlife dens or nests are found. 

Gaps may occur where cable corridors come together near landings or other areas where extra room is needed to 

facilitate yarding or meet specific wildlife objectives.

Silvicultural Prescription: Systematic Thinning

Apply systematic thinning strips in portions of the unit unsuitable for uniform thinning. Systematic thinning should 

be applied primarily in downhill settings where full suspension cannot be achieved or other areas where uniform 

thinning will result in unacceptable levels of residual tree damage or otherwise is operationally infeasible. 

Systematic thinning should remove all trees within corridors 20 to 60 feet wide depending on operational feasibility, 

visual concerns and /or windthrow potential. Maintain a 60-120 foot distance between cut corridors resulting in at 

least a 50% basal area retention. Where visuals are of concern, cut corridors should be kept to approximately 20 feet 

in width pending scenery direction. Although parallel strips are likely to be most common, there are options for fan 

shapes, depending on landing/road locations.

The treatments being proposed are based on the analysis of current data for this stand projected forward in time 

using growth modeling. Marking guidelines covering the specifics of the treatment, such as species to favor for 

retention will be developed at the time of treatment.

TIMBER/YARDING: Shovel and cable yarding to NFS road 3023500.

ENGINEERING/ROADS: Unit is accessed by reconstruction of NFS road 3023500, totaling 2,300 feet. See road 

card for information on NFS road.

BOTANY: No Concerns

INVASIVE SPECIES: No Concerns

FISHERIES: Streams are tributaries to Big Lake. 

Stream #: 2 Class: I, II Flagging: B/W C-Type: AFM, HCV Concerns: none

Buffer (RMA): Class I for AFM greater of 140 feet or active portion of the alluvial fan. Class II for HCV greater of 

100 feet or the top of the side-slope break.

Alternatives: ROD Buffer (RAW): no review needed Protection: Category A

Stream #: 3 Class: II, IV Flagging: B/W, G/W C-Type: HCO Concerns: none

Buffer (RMA): Class II for HCO greater of 100 feet or to the top of the side-slope break. 

Alternatives: ROD Buffer (RAW): no review needed Protection: Category A and C

Stream #: 3.1R Class: II Flagging: B/W C-Type: HCO Concerns: none

Buffer (RMA): Class II for HCO greater of 100 feet or to the top of the side-slope break. 

Alternatives: ROD Buffer (RAW): no review needed Protection: Category A 

Stream #: 4 Class: II, IV Flagging: B/W, G/W C-Type: HCO Concerns: none

Buffer (RMA): Class II for HCO greater of 100 feet or to the top of the side-slope break. 

Alternatives: ROD Buffer (RAW): no review needed Protection: Category A and C

686 - Big Thorne Project Record of Decision Appendix 1
Stream #: 5 Class: II, IV Flagging: B/W, G/W C-Type: HCO Concerns: none

Buffer (RMA): Class II for HCO greater of 100 feet or to the top of the side-slope break. 

Alternatives: ROD Buffer (RAW): no review needed Protection: Category A and C

Stream #: 6 Class: II, IV Flagging: B/W, G/W C-Type: PAO, HCO Concerns: none

Buffer (RMA): Class I for PAO greater of 100 feet, flood plain, riparian vegetation or soils, or riparian associated 

wetland fens. 

Alternatives: ROD Buffer (RAW): no review needed Protection: Category A and C

Stream #: 7 Class: II, IV Flagging: B/W, G/W C-Type: PAO, HCO Concerns: none

Buffer (RMA): Class I for PAO greater of 100 feet, flood plain, riparian vegetation or soils, or riparian associated 

wetland fens. 

Alternatives: ROD Buffer (RAW): no review needed Protection: Category A and C

All other streams in unit: Class IV Flagging: G/W C-Type: HC or MM 

Concerns: none Buffer (RMA): none Protection: Category C

GEOLOGY/KARST: No Concerns

HERITAGE RESOURCES: This unit was investigated per the third amended interagency Programmatic Agreement 

(PA) for historic properties. As specified by the PA, any potential adverse effect on historic properties (if any) was 

mitigated and portions of the Area of Potential Effect will be monitored by a qualified heritage specialist during 

and/or after actual ground disturbance.

SCENERY: Unit is entirely categorized as Very Low SIO. No concerns.

RECREATION: No Concerns

SOILS/WETLANDS: 

Slopes are estimated to range from about 20% to about 100%. All slopes greater than 72% will be verified prior to 

implementation. No wetlands have been mapped in the unit. The soils and wetlands are suitable for a minimum of 

partial suspension cable yarding or shovel yarding and should follow R10 BMPs 12.5, 13.2 and 13.9 and National 

Core BMPs Plan-2, Veg-2, Veg-4, Veg-5, and Veg-6. Follow shovel yarding guidelines outlined in the introductions 

to unit cards (R10 BMP 13.9 and National Core Veg-4). Partial harvest with ground-based removal and partial 

suspension thinning will meet soil quality standards.

WILDLIFE: 

Commercial thinning will enhance wildlife habitat near Big Lake by improving forage availability and removing the 

stand for the stem exclusion phase for the duration of rotation (until it is harvested again).

Appendix 1 - Unit Cards - 687 Appendix 1
3023500

3023500

3023530

3023500

2.7

2.5L

49.1L

1

2

10

2.2R

1

1R

9

3 2. R

2.1 R

4.2R

31

32

4

7

1

1.4R

5

4.1 R

6

3.1 R

2.4L

2.5L.1R

2.2L

1.2R

2.3L

2.1L

1.3L

3

2.6L

1959

1995

1960

1995

1963

1995

1960

552

556

557

162

551

A

A

B

B

C

C

D

D

E

E

F

F

G

G

H

H

I

I

J

J

10 10

9 9

8 8

7 7

6 6

5 5

4 4

3 3

2 2

1 1

Unit Number 552 ROD VCU: 

0 500

Feet

Past Harvest

(Year Origin)

Unsuitable Soils

Riparian Management

Area

Slope > 72%

Other Ownership

Old Growth Habitat LUD

Recreation River LUD

Scenic River LUD

State Highway

National Forest System Road - Open

National Forest System Road - Stored

Non-National Forest 

System Road

Proposed Reconstructed Road

Proposed System Road 

(reopened Decommissioned)

Proposed Temporary Road 

(reopened Decommissioned)

Proposed System Road

Proposed Temporary

Road

Young Growth

Systematic Strip Thin

Uniform Crown Thin

Old Growth

Helicopter

Shovel or Cable

Partial Cut

Class 1 Stream

Class 2 Stream

Class 3 Stream

Class 4 Stream

Lake

100’ Contour

Eagle Nest Buffer

Legacy

Visual Buffer

Deferred (within

Original Unit

Reconnaissance

Area)

583

R:\projects_2010\BigThorneEIS\maps\Unitcards\ROD_YG.mxd 3 June 2013

RR

SR

Young Growth

688 - Big Thorne Project Record of Decision Appendix 1
Unit 

Number: 555

Alternatives: ROD Total Unit 27.1

Acres: 

Prescription: Systematic 

Thinning

VCU 

Number: 583

Yarding System:

Cable

Net Harvest

Volume 211

(MBF): 

LUD: Modified Landscape,

Timber Production

Summary of Concerns, Responses, BMPs and Mitigation

SILVICULTURE: 

Existing Conditions: This unit lies entirely within Stand #5830200502. The stand origination date is 1963. This 

stand has not been pre-commercially thinned. The site potential appears to be medium. This unit is in a successional 

stage of stem exclusion. Approximately 15 acres of the unit lies within the Deer Winter Range landscape zone. The 

remaining approximately 11 acres is in the Uplands/Mountain Slopes landscape zone. This unit is located in the Ratz 

Harbor young growth study area.

Silvicultural Objective/Desired Condition (Deer Winter Range):

The management goal of young-growth treatment in this landscape zone is to improve growth, productivity, and 

forest health, while managing for a sustained yield, even flow of an industrial wood supply and improving deer 

winter range conditions in treated stands for the remainder of the rotation.

Silvicultural Objective/Desired Condition (Uplands/Mountain Slopes):

The management goal of young-growth treatments in this landscape zone is to manage for a sustained yield, even 

flow of an industrial wood supply, while meeting multiple resource objectives, wherever possible. Treatments 

should improve growth and productivity, improve forest health, and promote forest stand conditions that will 

provide a diverse array of marketable forest products.

Silvicultural Prescription: Systematic Thinning

Apply systematic thinning strips in portions of the unit unsuitable for uniform thinning. Systematic thinning should 

be applied primarily in downhill settings where full suspension cannot be achieved or other areas where uniform 

thinning will result in unacceptable levels of residual tree damage or otherwise is operationally infeasible. 

Systematic thinning should remove all trees within corridors 20 to 60 feet wide depending on operational feasibility, 

visual concerns and /or windthrow potential. Maintain a 60-120 foot distance between cut corridors resulting in at 

least a 50% basal area retention. Where visuals are of concern, cut corridors should be kept to approximately 20 feet 

in width pending scenery direction. Although parallel strips are likely to be most common, there are options for fan 

shapes, depending on landing/road locations.

The treatments being proposed are based on the analysis of current data for this stand projected forward in time 

using growth modeling. Marking guidelines covering the specifics of the treatment, such as species to favor for 

retention will be developed at the time of treatment.

TIMBER/YARDING: Cable yarding to NFS road 3023535.

ENGINEERING/ROADS: Unit is accessed by reconstruction of NFS roads 3023500 and 3023535, totaling 8,300 

feet. See road cards for information on NFS roads.

BOTANY: No Concerns

INVASIVE SPECIES: No Concerns

FISHERIES: Streams are tributaries to Ratz Creek. 

Stream#: 5 Class: II, III Flagging: B/W, O/W C-Type: HCL, HCD Concerns: none 

Buffer (RMA): Class II for HCL greater of 100 feet or the top of the side-slope break. Class III for HCD to the top 

of the side-slope break.

Alternatives: ROD Buffer (RAW): no review needed Protection: Category A and B

All other streams in unit: Class IV Flagging: G/W C-Type: HC or MM 

Concerns: none Buffer (RMA): none Protection: Category C

GEOLOGY/KARST: No Concerns

HERITAGE RESOURCES:

This unit was investigated per the third amended interagency Programmatic Agreement (PA) for historic properties. 

As specified by the PA, any potential adverse effect on historic properties (if any) was mitigated and portions of the 

Area of Potential Effect will be monitored by a qualified heritage specialist during and/or after actual ground 

disturbance.

SCENERY: Unit is entirely categorized as Very Low SIO. No Concerns

RECREATION: No Concerns

SOILS/WETLANDS: 

Slopes are estimated to range from about 20% to about 80%. All slopes greater than 72% will be verified prior to 

Appendix 1 - Unit Cards - 689 Appendix 1
implementation. There is about 1/2 acre of forested wetland adjacent to the southeastern boundary of the unit 

(BMP 12.5). (R10 BMP 12.5 and National Core BMPs AqEco-2 and AqEco-4). The soils and wetlands are suitable 

for a minimum of partial suspension cable yarding and should follow R10 BMPs 12.5, 13.2 and 13.9 and National 

Core BMPs Plan-2, Veg-2, Veg-5, and Veg-6. Partial suspension thinning will meet soil quality standards.

WILDLIFE: 

Commercial thinning will enhance wildlife habitat along Ratz Creek by improving forage availability and removing 

the stand for the stem exclusion phase for the duration of rotation (until it is harvested again), though a road would 

be reconstructed to access the unit. Unit is not a priority on the landscape from a thinning perspective because it is 

isolated.

690 - Big Thorne Project Record of Decision Appendix 1
3023535

3023535

1.4R

2

1

1

4

3

2

1963

1960

1963

1963

1960

167

555

168

169

A

A

B

B

C

C

D

D

E

E

F

F

G

G

H

H

I

I

J

J

10 10

9 9

8 8

7 7

6 6

5 5

4 4

3 3

2 2

1 1

Unit Number 555 ROD VCU: 

0 500

Feet

Past Harvest

(Year Origin)

Unsuitable Soils

Riparian Management

Area

Slope > 72%

Other Ownership

Old Growth Habitat LUD

Recreation River LUD

Scenic River LUD

State Highway

National Forest System Road - Open

National Forest System Road - Stored

Non-National Forest 

System Road

Proposed Reconstructed Road

Proposed System Road 

(reopened Decommissioned)

Proposed Temporary Road 

(reopened Decommissioned)

Proposed System Road

Proposed Temporary

Road

Young Growth

Systematic Strip Thin

Uniform Crown Thin

Old Growth

Helicopter

Shovel or Cable

Partial Cut

Class 1 Stream

Class 2 Stream

Class 3 Stream

Class 4 Stream

Lake

100’ Contour

Eagle Nest Buffer

Legacy

Visual Buffer

Deferred (within

Original Unit

Reconnaissance

Area)

583

R:\projects_2010\BigThorneEIS\maps\Unitcards\ROD_YG.mxd 3 June 2013

RR

SR

Young Growth

Appendix 1 - Unit Cards - 691 Appendix 1
Unit 

Number: 556

Alternatives: ROD Total Unit 1.9

Acres: 

Prescription: Crown Thinning

VCU 

Number: 583

Yarding System:

Shovel

Net Harvest

Volume 11

(MBF): 

LUD: Modified Landscape

Summary of Concerns, Responses, BMPs and Mitigation

SILVICULTURE: 

Existing Conditions: This unit is entirely within Stand #5830300578. The stand origination date is 1960. The entire 

area within this small unit was pre-commercially thinned in 2006 and it may be a number of years before it is ready 

for commercial thinning. The site potential appears to be medium. This unit is in a successional stage of stem 

exclusion; however, precommercial thinning has opened the canopy. This unit lies within the Deer Winter Range 

landscape zone, and is located in the Ratz Harbor young-growth study area.

Silvicultural Objective/Desired Condition (Deer Winter Range):

The management goal of young-growth treatment in this landscape zone is to improve growth, productivity, and 

forest health, while managing for a sustained yield, even flow of an industrial wood supply and improving deer 

winter range conditions in treated stands for the remainder of the rotation.

Silvicultural Prescription: Intermediate Treatment Crown Thinning

Apply crown thinning at approximately stand age 50. Crown thinning should retain at least 50% of the existing 

pretreatment stand basal area at that time. Retain trees in a generally uniform pattern. Skips or thickets may be left 

where logging system difficulties occur, in portions of settings where windthrow risk is expected to be unacceptable 

after thinning like along exposed stand edges or knobs, and in any areas where wildlife dens or nests are found. 

Gaps may occur where cable corridors come together near landings or other areas where extra room is needed to 

facilitate yarding or meet specific wildlife objectives.

The treatments being proposed are based on the analysis of current data for this stand projected forward in time 

using growth modeling. Marking guidelines covering the specifics of the treatment, such as species to favor for 

retention will be developed at the time of treatment.

TIMBER/YARDING: Shovel yarding to NFS road 3023530.

ENGINEERING/ROADS: Unit is accessed by reconstruction of NFS roads 3023500 and 3023530, totaling 2,600 

feet. See road cards for information on NFS roads.

BOTANY: No Concerns

INVASIVE SPECIES: No Concerns

FISHERIES: Streams are tributaries to Big Lake. Stream 1 is Ratz Creek.

Stream#: 1 Class: I Flagging: B/W C-Type: FPM Concerns: none

Buffer (RMA): Class I for FPM greater of 130 feet, flood plain, riparian vegetation or soils, or riparian associated 

wetland fens.

Alternatives: ROD Buffer (RAW): no review needed Protection: Category A

Stream#: 7 Class: II Flagging: B/W C-Type: PAO Concerns: none

Buffer (RMA): Class I for PAO greater of 100 feet, flood plain, riparian vegetation or soils, or riparian associated 

wetland fens.

Alternatives: ROD Buffer (RAW): no review needed Protection: Category A

GEOLOGY/KARST: No Concerns

HERITAGE RESOURCES: This unit was investigated per the third amended interagency Programmatic Agreement 

(PA) for historic properties. As specified by the PA, any potential adverse effect on historic properties (if any) was 

mitigated and portions of the Area of Potential Effect will be monitored by a qualified heritage specialist during 

and/or after actual ground disturbance.

SCENERY: Unit is entirely categorized as Very Low SIO. No concerns.

RECREATION: No Concerns

SOILS/WETLANDS: Slopes are gentle and up to about 20%. There are approximately 3 acres of forested wetland 

/emergent short sedge complex and 1 acre of tall sedge fen in the unit (R10 BMP 12.5 and National Core BMPs AqEco-2 and 

AqEco-4). The soils and wetlands are suitable for shovel yarding. Follow shovel yarding guidelines outlined in the 

introductions to unit cards (R10 BMP 13.9 and National Core BMPs Plan-2, Veg-2, and Veg-4). Partial harvest with 

ground-based removal will meet soil quality standards.

WILDLIFE: Commercial thinning will enhance wildlife habitat along Ratz Creek by improving forage availability 

and removing the stand for the stem exclusion phase for the duration of rotation (until it is harvested again). A road 

would be reconstructed to access the unit.

692 - Big Thorne Project Record of Decision Appendix 1
3023500

3023530

3023500

3023530

3023500

3023535

1

2

4

3

1

1

3

2

2.2R

1

2.1 L

9

3 2. R

2

2.1R

4.2R

4

4

5

7

7

2

4.1 R

6

3.1 R

1.2R

1.1R

3 2

6

9.1L

1

5

9

1960

1959

1960

1995

1995

1963

1995

551

552

556

557

558

162

167

168

A

A

B

B

C

C

D

D

E

E

F

F

G

G

H

H

I

I

J

J

10 10

9 9

8 8

7 7

6 6

5 5

4 4

3 3

2 2

1 1

Unit Number 556 ROD VCU: 

0 500

Feet

Past Harvest

(Year Origin)

Unsuitable Soils

Riparian Management

Area

Slope > 72%

Other Ownership

Old Growth Habitat LUD

Recreation River LUD

Scenic River LUD

State Highway

National Forest System Road - Open

National Forest System Road - Stored

Non-National Forest 

System Road

Proposed Reconstructed Road

Proposed System Road 

(reopened Decommissioned)

Proposed Temporary Road 

(reopened Decommissioned)

Proposed System Road

Proposed Temporary

Road

Young Growth

Systematic Strip Thin

Uniform Crown Thin

Old Growth

Helicopter

Shovel or Cable

Partial Cut

Class 1 Stream

Class 2 Stream

Class 3 Stream

Class 4 Stream

Lake

100’ Contour

Eagle Nest Buffer

Legacy

Visual Buffer

Deferred (within

Original Unit

Reconnaissance

Area)

583

R:\projects_2010\BigThorneEIS\maps\Unitcards\ROD_YG.mxd 3 June 2013

RR

SR

Young Growth

Appendix 1 - Unit Cards - 693 Appendix 1
Unit 

Number: 557

Alternatives: ROD Total Unit 58.1

Acres: 

Prescription: Systematic and 

Crown Thinning 

VCU 

Number: 583

Yarding System:

Cable, Shovel

Net Harvest

Volume 387

(MBF): 

LUD: Modified Landscape

Summary of Concerns, Responses, BMPs and Mitigation

SILVICULTURE: 

Existing Conditions: This unit lies entirely within Stand #5830300577. The stand origination date is 1963. 

Approximately 41% of the stand area has been pre-commercially thinned, which was completed in 2005. Some 

portions of the unit may require a number of years before they are ready for commercial thinning. The site potential 

in this unit appears to be medium. This unit is in a successional stage of stem exclusion. Approximately 55 acres of 

the unit lies within the Deer Winter Range landscape zone. The remaining approximately 8 acres lies within the 

Uplands/Mountain Slopes landscape zone. This unit is located in the Ratz Harbor young-growth study area.

Silvicultural Objective/Desired Condition (Deer Winter Range):

The management goal of young-growth treatment in this landscape zone is to improve growth, productivity, and 

forest health, while managing for a sustained yield, even flow of an industrial wood supply and improving deer 

winter range conditions in treated stands for the remainder of the rotation.

Silvicultural Objective/Desired Condition (Uplands/Mountain Slopes):

The management goal of young-growth treatments in this landscape zone is to manage for a sustained yield, even 

flow of an industrial wood supply, while meeting multiple resource objectives, wherever possible. Treatments 

should improve growth and productivity, improve forest health, and promote forest stand conditions that will 

provide a diverse array of marketable forest products.

Silvicultural Prescription: Intermediate Treatment Crown Thinning

Apply crown thinning at approximately stand age 50. Crown thinning should retain at least 50% of the existing 

pretreatment stand basal area at that time. Retain trees in a generally uniform pattern. Skips or thickets may be left 

where logging system difficulties occur, in portions of settings where windthrow risk is expected to be unacceptable 

after thinning like along exposed stand edges or knobs, and in any areas where wildlife dens or nests are found. 

Gaps may occur where cable corridors come together near landings or other areas where extra room is needed to 

facilitate yarding or meet specific wildlife objectives.

Silvicultural Prescription: Systematic Thinning

Apply systematic thinning strips in portions of the unit unsuitable for uniform thinning. Systematic thinning should 

be applied primarily in downhill settings where full suspension cannot be achieved or other areas where uniform 

thinning will result in unacceptable levels of residual tree damage or otherwise is operationally infeasible. 

Systematic thinning should remove all trees within corridors 20 to 60 feet wide depending on operational feasibility, 

visual concerns and /or windthrow potential. Maintain a 60-120 foot distance between cut corridors resulting in at 

least a 50% basal area retention. Where visuals are of concern, cut corridors should be kept to approximately 20 feet 

in width pending scenery direction. Although parallel strips are likely to be most common, there are options for fan 

shapes, depending on landing/road locations.

The treatments being proposed are based on the analysis of current data for this stand projected forward in time 

using growth modeling. Marking guidelines covering the specifics of the treatment, such as species to favor for 

retention will be developed at the time of treatment.

TIMBER/YARDING: Shovel settings yard to the proposed temporary road and NFS road 3023530. Cable settings 

yard to the proposed temporary road.

ENGINEERING/ROADS: Unit is accessed by reconstruction of NFS roads 3023500 and 3023530, totaling 5,500 

feet and a proposed temporary road of 2,800 feet, constructed over decommissioned road bed. See road card for 

information on NFS road.

BOTANY: No Concerns

INVASIVE SPECIES: No Concerns

FISHERIES: Streams are tributaries to Big Lake and Ratz Creek.

Stream#: 1 Class: I Flagging: B/W C-Type: HCL, HCV Concerns: erosion 

Buffer (RMA): Class I for HCL and HCV greater of 100 feet or to the top of the side-slope break. 

Alternatives: ROD Buffer (RAW): no review needed Protection: Category A

Stream#: 1.1R Class: III Flagging: O/W C-Type: HCV Concerns: erosion

Buffer (RMA): Class III for HCV to the top of the side-slope break.

694 - Big Thorne Project Record of Decision Appendix 1
Alternatives: ROD Buffer (RAW): no review needed Protection: Category B

Stream#: 1.1R.1R Class: III, IV Flagging: O/W, GW C-Type: HCV, HCO 

Concerns: Blowdown, erosion

Buffer (RMA): Class III for HCV to the top of the side-slope break.

Alternatives: ROD Buffer (RAW): no review needed Protection: Category B and C

Stream#: 2 Class: I, III Flagging: B/W, O/W C-Type: PAS, AFM, HCD, HCM, HCO

Concerns: erosion and blowdown 

Buffer (RMA): Class I for PAS greater of 100 feet, flood plain, riparian vegetation or soils, or riparian associated 

wetland fens. Class I for AFM greater of 140 feet or active portion of the alluvial fan. Class III for HCD, HCM and 

HCO to the top of the side-slope break.

Alternatives: ROD Buffer (RAW): no review needed Protection: Category A and B

Stream#: 2.1L Class: II, IV Flagging: B/W, GW C-Type: HCO Concerns: none

Buffer (RMA): Class II for HCO greater of 100 feet or to the top of the side-slope break. 

Alternatives: ROD Buffer (RAW): no review needed Protection: Category A and B

Stream#: 177-3 Class: III Flagging: O/W C-Type: HCD Concerns: none

Buffer (RMA): Class III for HCD to the top of the side-slope break.

Alternatives: ROD Buffer (RAW): no review needed Protection: Category B

Stream#: 3 Class: II, IV Flagging: B/W, GW C-Type: HCO Concerns: none

Buffer (RMA): Class II for HCO greater of 100 feet or to the top of the side-slope break. 

Alternatives: ROD Buffer (RAW): no review needed Protection: Category A and B

Temporary road (reopened decommissioned) for Unit 523: No known stream crossings. If any stream crossings are 

found, crossings structures and locations will be approved by USFS, in consultation with fisheries biologist or 

hydrologist, prior to construction (BMP 14.17). During construction of temporary roads implement BMPs 12.17, 

13.10, 13.11, 13.16, 14.3, and 14.5.

GEOLOGY/KARST: No Concerns

HERITAGE RESOURCES: 

This unit was investigated per the third amended interagency Programmatic Agreement (PA) for historic properties. 

As specified by the PA, any potential adverse effect on historic properties (if any) was mitigated and portions of the 

Area of Potential Effect will be monitored by a qualified heritage specialist during and/or after actual ground 

disturbance.

SCENERY: Unit is entirely categorized as Very Low SIO. No concerns.

RECREATION: No Concerns

SOILS/WETLANDS: 

Slopes are estimated to range from about 10% in the lower portions of the unit to near 100% in the upper elevations. 

All slopes greater than 72% will be verified prior to implementation. A debris torrent initiated in 1977. There is 

approximately 1 acre of forested wetland adjacent to the southeastern corner of the unit boundary ((R10 BMP 12.5 

and National Core BMPs AqEco-2 and AqEco-4). The soils and wetlands are suitable for a minimum of partial 

suspension cable yarding or shovel yarding and should follow R10 BMPs 12.5, 13.2 and 13.9 and National Core 

BMPs Plan-2, Veg-2, Veg-4, Veg-5, and Veg-6. Follow shovel yarding guidelines outlined in the introductions to 

unit cards (R10 BMP 13.9 and National Core Veg-4). Partial harvest with ground-based removal and partial 

suspension thinning will meet soil quality standards.

WILDLIFE: 

Commercial thinning will enhance wildlife habitat near Big Lake by improving forage availability and removing the 

stand for the stem exclusion phase for the duration of rotation (until it is harvested again). A road would be reopened 

to access the unit. Habitat value is relatively high because of south-facing slopes.

Appendix 1 - Unit Cards - 695 Appendix 1
3023530

3023530

3023535

3. 1 R

2

1

1

1.1R

2. 1L

3

2

7

3

3.3R

3.1R.1L 3.2R

4

6

1

2

9

1

2

4

1.1R.1R

1963

1995

1960

1995

556

557

558

177

A

A

B

B

C

C

D

D

E

E

F

F

G

G

H

H

I

I

J

J

10 10

9 9

8 8

7 7

6 6

5 5

4 4

3 3

2 2

1 1

Unit Number 557 ROD VCU: 

0 500

Feet

Past Harvest

(Year Origin)

Unsuitable Soils

Riparian Management

Area

Slope > 72%

Other Ownership

Old Growth Habitat LUD

Recreation River LUD

Scenic River LUD

State Highway

National Forest System Road - Open

National Forest System Road - Stored

Non-National Forest 

System Road

Proposed Reconstructed Road

Proposed System Road 

(reopened Decommissioned)

Proposed Temporary Road 

(reopened Decommissioned)

Proposed System Road

Proposed Temporary

Road

Young Growth

Systematic Strip Thin

Uniform Crown Thin

Old Growth

Helicopter

Shovel or Cable

Partial Cut

Class 1 Stream

Class 2 Stream

Class 3 Stream

Class 4 Stream

Lake

100’ Contour

Eagle Nest Buffer

Legacy

Visual Buffer

Deferred (within

Original Unit

Reconnaissance

Area)

583

R:\projects_2010\BigThorneEIS\maps\Unitcards\ROD_YG.mxd 3 June 2013

RR

SR

Young Growth

696 - Big Thorne Project Record of Decision Appendix 1
Unit 

Number: 558

Alternatives: ROD Total Unit 9.1

Acres: 

Prescription: Crown Thinning

VCU 

Number: 583

Yarding System:

Cable, Shovel

Net Harvest

Volume 53

(MBF): 

LUD: Modified Landscape

Summary of Concerns, Responses, BMPs and Mitigation

SILVICULTURE: 

Existing Conditions: This unit lies entirely within Stand #5830300577. The stand origination date is 1963. 

Approximately 41% of the stand area has been pre-commercially thinned, which was completed in 2005. The site 

potential in this unit appears to be high. This unit is in a successional stage of stem exclusion. This unit lies within 

the Deer Winter Range landscape zone, and is located in the Ratz Harbor young-growth study area. The eastern, 

thinned portion of this unit coincides with a TWYG research site and will likely need to be dropped.

Silvicultural Objective/Desired Condition (Deer Winter Range):

The management goal of young-growth treatment in this landscape zone is to improve growth, productivity, and 

forest health, while managing for a sustained yield, even flow of an industrial wood supply and improving deer 

winter range conditions in treated stands for the remainder of the rotation.

Silvicultural Prescription: Intermediate Treatment Crown Thinning 

Apply crown thinning at approximately stand age 50. Crown thinning should retain at least 50% of the existing 

pretreatment stand basal area at that time. Retain trees in a generally uniform pattern. Skips or thickets may be left 

where logging system difficulties occur, in portions of settings where windthrow risk is expected to be unacceptable 

after thinning like along exposed stand edges or knobs, and in any areas where wildlife dens or nests are found. 

Gaps may occur where cable corridors come together near landings or other areas where extra room is needed to 

facilitate yarding or meet specific wildlife objectives.

The treatments being proposed are based on the analysis of current data for this stand projected forward in time 

using growth modeling. Marking guidelines covering the specifics of the treatment, such as species to favor for 

retention will be developed at the time of treatment.

A Tongass Wide Young Growth Study site (POW Ratz Experiment #4) is along the eastern boundary. Protection of 

this site is required. Contact the Forestry Sciences Lab in Juneau for additional information.

TIMBER/YARDING: Shovel yarding to NFS road 3023530.

ENGINEERING/ROADS: Unit is accessed by reconstruction of NFS roads 3023500 and 3023530, totaling 8,500 

feet. See road cards for information on NFS roads.

BOTANY: No Concerns

INVASIVE SPECIES: No Concerns

FISHERIES: Streams are tributaries to Big Lake. 

Stream#: 2 Class: I Flagging: B/W C-Type: AFM Concerns: blowdown

Buffer (RMA): Class I for AFM greater of 140 feet or active portion of the alluvial fan. 

Alternatives: ROD Buffer (RAW): no review needed Protection: Category A 

Stream#: 7 Class: II, IV Flagging: B/W, G/W C-Type: HCL, HCO Concerns: none

Buffer (RMA): Class II for HCL greater of 100 feet or to the top of the side-slope break. 

Alternatives: ROD Buffer (RAW): no review needed Protection: Category A and C

Stream#: 9 Class: II Flagging: B/W C-Type: AFH, HCM Concerns: none

Buffer (RMA): Class II for AFH greater of 140 feet or active portion of the alluvial fan. Class II for HCM greater of 

100 feet or to the top of the side-slope break. 

Alternatives: ROD Buffer (RAW): no review needed Protection: Category A

GEOLOGY/KARST: No Concerns

HERITAGE RESOURCES: 

This unit was investigated per the third amended interagency Programmatic Agreement (PA) for historic properties. 

As specified by the PA, any potential adverse effect on historic properties (if any) was mitigated and portions of the 

Area of Potential Effect will be monitored by a qualified heritage specialist during and/or after actual ground 

disturbance.

SCENERY: Unit is entirely categorized as Very Low SIO. No concerns.

RECREATION: No Concerns

SOILS/WETLANDS: 

Slopes are estimated to range from about 15% to about 60%. There are approximately 8 acres of forested wetland in 

Appendix 1 - Unit Cards - 697 Appendix 1
adjacent to the southern unit boundary (R10 BMP 12.5 and National Core BMPs AqEco-2 and AqEco-4). The soils 

and wetlands are suitable for a minimum of partial suspension cable yarding or shovel yarding and should follow 

R10 BMPs 12.5, 13.2 and 13.9 and National Core BMPs Plan-2, Veg-2, Veg-4, Veg-5, and Veg-6. Follow shovel 

yarding guidelines outlined in the introductions to unit cards (R10 BMP 13.9 and National Core Veg-4). Partial 

harvest with ground-based removal and partial suspension thinning will meet soil quality standards.

WILDLIFE: 

Commercial thinning will enhance wildlife habitat in this south-facing unit near Big Lake by improving forage 

availability and removing the stand for the stem exclusion phase for the duration of rotation (until it is harvested 

again). A road would be reopened to access the unit.

698 - Big Thorne Project Record of Decision Appendix 1
3023530

3023520

3023530

3023535

2. 1L

5

3. 1 R

2

1

4

9

5

3

2

4

5

7

3

3

3.3R

1

3.1R.1L 3.2R

4

1

9.1L

6

1

2

9 2

2

3

1959

1960

1963

551 556

557 558

177

175

A

A

B

B

C

C

D

D

E

E

F

F

G

G

H

H

I

I

J

J

10 10

9 9

8 8

7 7

6 6

5 5

4 4

3 3

2 2

1 1

Unit Number 558 ROD VCU: 

0 500

Feet

Past Harvest

(Year Origin)

Unsuitable Soils

Riparian Management

Area

Slope > 72%

Other Ownership

Old Growth Habitat LUD

Recreation River LUD

Scenic River LUD

State Highway

National Forest System Road - Open

National Forest System Road - Stored

Non-National Forest 

System Road

Proposed Reconstructed Road

Proposed System Road 

(reopened Decommissioned)

Proposed Temporary Road 

(reopened Decommissioned)

Proposed System Road

Proposed Temporary

Road

Young Growth

Systematic Strip Thin

Uniform Crown Thin

Old Growth

Helicopter

Shovel or Cable

Partial Cut

Class 1 Stream

Class 2 Stream

Class 3 Stream

Class 4 Stream

Lake

100’ Contour

Eagle Nest Buffer

Legacy

Visual Buffer

Deferred (within

Original Unit

Reconnaissance

Area)

583

R:\projects_2010\BigThorneEIS\maps\Unitcards\ROD_YG.mxd 3 June 2013

RR

SR

Young Growth

Appendix 1 - Unit Cards - 699 Appendix 1
Unit 

Number: 559

Alternatives: ROD Total Unit 14.4

Acres: 

Prescription: Systematic and 

Crown Thinning

VCU 

Number: 583

Yarding System:

Cable, Shovel

Net Harvest

Volume 95

(MBF): 

LUD: Old Growth Habitat

Summary of Concerns, Responses, BMPs and Mitigation

SILVICULTURE: 

Existing Conditions: This unit lies entirely within Stand #5830200551. The stand origination date is 1960. The stand 

area within the unit has not been pre-commercially thinned. The site potential in this unit appears to range from 

medium to high. The unit is in a successional stage of stem exclusion. This unit lies inside a small OGR and is 

within the Old-growth Habitat LUD landscape zone. The unit is located in the Ratz Harbor young-growth study 

area.

Silvicultural Objective/Desired Condition (Old-Growth Habitat):

The management objectives of young-growth treatments in Landscape Zone B are to accelerate development of 

advanced seral stand structure in order to restore the ecological integrity of habitat. Characteristics needed for 

wildlife habitat vary with the forest type and site potential of each stand. Treatments are intended to improve 

habitats, corridors, and connectivity for eagles, goshawks, deer, marten, otter, bear, and other wildlife species 

associated with maritime-influenced habitat. 

Silvicultural Prescription: Intermediate Treatment Crown Thinning

Apply crown thinning at approximately stand age 50. Crown thinning should retain at least 50% of the existing 

pretreatment stand basal area at that time. Retain trees in a generally uniform pattern. Skips or thickets may be left 

where logging system difficulties occur, in portions of settings where windthrow risk is expected to be unacceptable 

after thinning like along exposed stand edges or knobs, and in any areas where wildlife dens or nests are found. 

Gaps may occur where cable corridors come together near landings or other areas where extra room is needed to 

facilitate yarding or meet specific wildlife objectives.

Silvicultural Prescription: Systematic Thinning

Apply systematic thinning strips in portions of the unit unsuitable for uniform thinning. Systematic thinning should 

be applied primarily in downhill settings where full suspension cannot be achieved or other areas where uniform 

thinning will result in unacceptable levels of residual tree damage or otherwise is operationally infeasible. 

Systematic thinning should remove all trees within corridors 20 to 60 feet wide depending on operational feasibility, 

visual concerns and /or windthrow potential. Maintain a 60-120 foot distance between cut corridors resulting in at 

least a 50% basal area retention. Where visuals are of concern, cut corridors should be kept to approximately 20 feet 

in width pending scenery direction. Although parallel strips are likely to be most common, there are options for fan 

shapes, depending on landing/road locations.

The treatments being proposed are based on the analysis of current data for this stand projected forward in time 

using growth modeling. Marking guidelines covering the specifics of the treatment, such as species to favor for 

retention will be developed at the time of treatment.

TIMBER/YARDING: Shovel settings yard to NFS 3000303. Cable settings yard to NFS 30000301.

ENGINEERING/ROADS: Unit is accessed by reconstruction of NFS roads 3000301 and 3000303, totaling 1,800 

feet. See road cards for information on NFS roads.

BOTANY: No Concerns

INVASIVE SPECIES: No Concerns

FISHERIES: Streams drain to Ratz Harbor. 

Stream#: 1 Class: II Flagging: B/W C-Type: HCM Concerns: none

Buffer (RMA): Class II for HCM greater of 100 feet or to the top of the side-slope break. 

Alternatives: ROD Buffer (RAW): no review needed Protection: Category A

Stream#: 2 Class: II, IV Flagging: B/W, G/W C-Type: HCO Concerns: none

Buffer (RMA): Class II for HCO greater of 100 feet or to the top of the side-slope break.

Alternatives: ROD Buffer (RAW): no review needed Protection: Category A and C

Stream#: 4 Class: II Flagging: B/W C-Type: HCO Concerns: none

Buffer (RMA): Class II for HCO greater of 100 feet or to the top of the side-slope break. 

Alternatives: ROD Buffer (RAW): no review needed Protection: Category A

All other streams in unit: Class IV Flagging: G/W C-Type: HC or MM 

700 - Big Thorne Project Record of Decision Appendix 1
Concerns: none Buffer (RMA): none Protection: Category C

GEOLOGY/KARST: No Concerns

HERITAGE RESOURCES: 

This unit was investigated per the third amended interagency Programmatic Agreement (PA) for historic properties. 

As specified by the PA, any potential adverse effect on historic properties (if any) was mitigated and portions of the 

Area of Potential Effect will be monitored by a qualified heritage specialist during and/or after actual ground 

disturbance.

SCENERY: 

Unit is entirely in High SIO because it is in a small OGR. Only 10 acres are prescribed for systematic thinning. In 

these areas, implement narrow thinning corridors to minimize visibility.

RECREATION: No Concerns

SOILS/WETLANDS: Slopes are estimated range from about 20% to about 55%. No wetlands have been mapped in 

the unit. The soils and wetlands are suitable for a minimum of partial suspension cable yarding or shovel yarding 

and should follow R10 BMPs 12.5, 13.2 and 13.9 and National Core BMPs Plan-2, Veg-2, Veg-4, Veg-5, and Veg6. Follow shovel yarding guidelines outlined in the introductions to unit cards (R10 BMP 13.9 and National Core 

Veg-4). Partial harvest with ground-based removal and partial suspension thinning will meet soil quality standards.

WILDLIFE: 

Commercial thinning will enhance wildlife habitat in small OGR near Ratz Harbor by improving forage availability 

and removing the stand for the stem exclusion phase for the duration of rotation (until it is harvested again), though 

a road would be reopened to access the unit.

Unit is within a small OGR (consistent with Forest Plan) in all alternatives; create and maintain narrow thinning 

corridors in systematic thinning areas.

Appendix 1 - Unit Cards - 701 Appendix 1
3000302

3000000

3000303

3000304

3000303

3000301

5.1L

1

2

1

4

4

3

1.1L

2

1

2

1.2L

1

1

3

1.1L

1.5R

1.6L

1.2R

1.6L

1.4L

1.6L.1R

1.3 L

2

1

1965

1965

1995

1960

1995

1960

1964

2006

559

560

561

562

172

A

A

B

B

C

C

D

D

E

E

F

F

G

G

H

H

I

I

J

J

10 10

9 9

8 8

7 7

6 6

5 5

4 4

3 3

2 2

1 1

Unit Number 559 ROD VCU: 

0 500

Feet

Past Harvest

(Year Origin)

Unsuitable Soils

Riparian Management

Area

Slope > 72%

Other Ownership

Old Growth Habitat LUD

Recreation River LUD

Scenic River LUD

State Highway

National Forest System Road - Open

National Forest System Road - Stored

Non-National Forest 

System Road

Proposed Reconstructed Road

Proposed System Road 

(reopened Decommissioned)

Proposed Temporary Road 

(reopened Decommissioned)

Proposed System Road

Proposed Temporary

Road

Young Growth

Systematic Strip Thin

Uniform Crown Thin

Old Growth

Helicopter

Shovel or Cable

Partial Cut

Class 1 Stream

Class 2 Stream

Class 3 Stream

Class 4 Stream

Lake

100’ Contour

Eagle Nest Buffer

Legacy

Visual Buffer

Deferred (within

Original Unit

Reconnaissance

Area)

583

R:\projects_2010\BigThorneEIS\maps\Unitcards\ROD_YG.mxd 3 June 2013

RR

SR

Young Growth

702 - Big Thorne Project Record of Decision Appendix 1
Unit 

Number: 560

Alternatives: ROD Total Unit 4.5

Acres: 

Prescription: Crown Thinning

VCU 

Number: 583

Yarding System:

Shovel

Net Harvest

Volume 27

(MBF): 

LUD: Modified Landscape, 

Old Growth Habitat

Summary of Concerns, Responses, BMPs and Mitigation

SILVICULTURE: 

Existing Conditions: This unit lies entirely within Stand #5830200551. The stand origination date is 1960. The stand 

area within this unit has not been pre-commercially thinned. The site potential in this unit appears to range from 

medium to high. The unit is in a successional stage of stem exclusion. This unit lies within the Deer Winter Range 

Landscape Zone and is located in the Ratz Harbor young growth study area.

Silvicultural Objective/Desired Condition (Old-Growth Habitat):

Under Alternatives 4 and 5, the management objectives of young-growth treatments in Landscape Zone B are 

followed. These objectives are to accelerate development of advanced seral stand structure in order to restore the 

ecological integrity of habitat. Characteristics needed for wildlife habitat vary with the forest type and site potential 

of each stand. Treatments are intended to improve habitats, corridors, and connectivity for eagles, goshawks, deer, 

marten, otter, bear, and other wildlife species associated with maritime-influenced habitat.

Silvicultural Objective/Desired Condition (Deer Winter Range):

Under Alternative 3, the management objectives of this landscape zone are followed. The management goal of 

young growth treatment in this landscape zone is to improve growth, productivity, and forest health, while managing 

for a sustained yield, even flow of an industrial wood supply and improving deer winter range conditions in treated 

stands for the remainder of the rotation.

Silvicultural Prescription: Intermediate Treatment Crown Thinning

Apply crown thinning at approximately stand age 50. Crown thinning should retain at least 50% of the existing 

pretreatment stand basal area at that time. Retain trees in a generally uniform pattern. Skips or thickets may be left 

where logging system difficulties occur, in portions of settings where windthrow risk is expected to be unacceptable 

after thinning like along exposed stand edges or knobs, and in any areas where wildlife dens or nests are found. 

Gaps may occur where cable corridors come together near landings or other areas where extra room is needed to 

facilitate yarding or meet specific wildlife objectives.

The treatments being proposed are based on the analysis of current data for this stand projected forward in time 

using growth modeling. Marking guidelines covering the specifics of the treatment, such as species to favor for 

retention will be developed at the time of treatment.

TIMBER/YARDING: Shovel yarding to the proposed temporary road.

ENGINEERING/ROADS: Unit is accessed by a proposed temporary road of 900 feet, approximately 800 feet will 

be constructed over decommissioned road bed.

BOTANY: No Concerns

INVASIVE SPECIES: No Concerns

FISHERIES: Streams tributaries to Ratz Creek.

Stream#: 1 Class: II Flagging: B/W C-Type: HCL Concerns: none

Buffer (RMA): Class II for HCL greater of 100 feet or to the top of the side-slope break.

Alternatives: ROD Buffer (RAW): no review needed Protection: Category A

Stream#: 1.1L Class: II, IV Flagging: B/W, G/W C-Type: HCO Concerns: none 

Buffer (RMA): Class II for HCO greater of 100 feet or to the top of the side-slope break.

Alternatives: ROD Buffer (RAW): no review needed Protection: Category A and C

Stream#: 2 Class: II Flagging: B/W C-Type: HCL, HCO Concerns: none

Buffer (RMA): Class II for HCL and HCO greater of 100 feet or to the top of the side-slope break.

Alternatives: ROD Buffer (RAW): no review needed Protection: Category A

Stream#: 2.1R Class: II, IV Flagging: B/W, G/W C-Type: HCO Concerns: none 

Buffer (RMA): Class II for HCO greater of 100 feet or to the top of the side-slope break.

Alternatives: ROD Buffer (RAW): no review needed Protection: Category A and C

All other streams in unit: Class IV Flagging: G/W C-Type: HC or MM 

Concerns: none Buffer (RMA): none Protection: Category C

Appendix 1 - Unit Cards - 703 Appendix 1
Temporary roads (new and reopened decommissioned) for Unit 560: One class II stream crossing. Stream#: 1.1L 

Class: II C-Type: HCO. A log culvert is recommended. Dolly Varden char were identified at the proposed Class 

II crossings and will require a timing window of June 15 to September 1. If any additional crossings are found they 

will be approved by the USFS, in consultation with fisheries biologist or hydrologist, prior to construction (BMP 

14.17). The Class II crossing will be designed to provide fish passage using a log culvert or bridge, will be installed 

under current timing constrictions, and concurrence from the State will be solicited prior to starting the work. 

During construction of temporary roads implement BMPs 12.17, 13.10, 13.11, 13.16, 14.14, 14.3, and 14.5, 14.20, 

and 14.8.

GEOLOGY/KARST: No Concerns

HERITAGE RESOURCES: This unit was investigated per the third amended interagency Programmatic Agreement 

(PA) for historic properties. As specified by the PA, any potential adverse effect on historic properties (if any) was 

mitigated and portions of the Area of Potential Effect will be monitored by a qualified heritage specialist during 

and/or after actual ground disturbance.

SCENERY: 

Alternative 3: Unit is in Very Low SIO. No concerns.

Alternatives 4 and 5: Unit is entirely in High SIO because it is in a small OGR in these alternatives. 

RECREATION: No Concerns

SOILS/WETLANDS: 

Slopes are estimated to range from about 15% to about 50%. There is about 1/4 acre (2% of the unit) of forested 

wetland/emergent sedge complex and 2 acres of forested wetland that covers the unit except for the western tip (R10 

BMP 12.5 and National Core BMPs AqEco-2 and AqEco-4). The soils and wetlands are suitable for shovel yarding. 

Follow shovel yarding guidelines outlined in the introductions to unit cards (R10 BMP 13.9 and National Core 

BMPs Plan-2, Veg-2, and Veg-4). Partial harvest with ground-based removal will meet soil quality standards.

A temporary road will impact less than 0.25 acres of forested wetland within the unit and less than 0.25 acres of 

forested wetland outside the unit. Wetland avoidance was not practicable due to the abundance of forested wetland. 

Provide adequate cross drainage, remove drainage structures, and close road after harvest. Follow R10 BMPs12.5 

and 14.9 and National Core BMPs AqEco-2, AqEco-4, Road-2, and Road-7.

WILDLIFE: 

Commercial thinning will enhance wildlife habitat near Trumpeter Lake by improving forage availability and 

removing the stand for the stem exclusion phase for the duration of rotation (until it is harvested again). A road 

would be reopened to access the unit.

Unit is adjacent to a small OGR.

704 - Big Thorne Project Record of Decision Appendix 1
3000304

3025000

3000302

3000303

3000000

3000301

3000303

1.5L

4

2

1

1

1.4L

1.1 L

1.1L

1.1L.1R

2

1.3L

1

1.4L.1R

2

1.2L

1

3

1

1.2L

2 1965

1964

1965

2006

1995

1964

1965

1995

1965

1960

560

561

562

559

A

A

B

B

C

C

D

D

E

E

F

F

G

G

H

H

I

I

J

J

10 10

9 9

8 8

7 7

6 6

5 5

4 4

3 3

2 2

1 1

Unit Number 560 ROD VCU: 

0 500

Feet

Past Harvest

(Year Origin)

Unsuitable Soils

Riparian Management

Area

Slope > 72%

Other Ownership

Old Growth Habitat LUD

Recreation River LUD

Scenic River LUD

State Highway

National Forest System Road - Open

National Forest System Road - Stored

Non-National Forest 

System Road

Proposed Reconstructed Road

Proposed System Road 

(reopened Decommissioned)

Proposed Temporary Road 

(reopened Decommissioned)

Proposed System Road

Proposed Temporary

Road

Young Growth

Systematic Strip Thin

Uniform Crown Thin

Old Growth

Helicopter

Shovel or Cable

Partial Cut

Class 1 Stream

Class 2 Stream

Class 3 Stream

Class 4 Stream

Lake

100’ Contour

Eagle Nest Buffer

Legacy

Visual Buffer

Deferred (within

Original Unit

Reconnaissance

Area)

583

R:\projects_2010\BigThorneEIS\maps\Unitcards\ROD_YG.mxd 3 June 2013

RR

SR

Young Growth

Appendix 1 - Unit Cards - 705 Appendix 1
Unit 

Number: 561

Alternatives: ROD Total Unit 

Acres: 26.3

Prescription: Systematic and 

Crown Thinning

VCU 

Number: 583

Yarding System:

Cable, Shovel

Net Harvest

Volume 

(MBF): 191

LUD: Modified Landscape, Old 

Growth Habitat

Summary of Concerns, Responses, BMPs and Mitigation

SILVICULTURE: 

Existing Conditions: This unit lies entirely within Stand #5830200551. The stand origination date is 1960. 

Approximately 5.3 acres along the western edge of the unit was pre-commercially thinned in 2006. The site potential 

in this unit appears to be medium. The unit is in a successional stage of stem exclusion. This unit lies within the 

Deer Winter Range Landscape Zone and is located in the Ratz Harbor young growth study area.

Silvicultural Objective/Desired Condition (Old-Growth Habitat):

Under Alternatives 4 and 5, the management objectives of young-growth treatments in Landscape Zone B are 

followed. These objectives are to accelerate development of advanced seral stand structure in order to restore the 

ecological integrity of habitat. Characteristics needed for wildlife habitat vary with the forest type and site potential 

of each stand. Treatments are intended to improve habitats, corridors, and connectivity for eagles, goshawks, deer, 

marten, otter, bear, and other wildlife species associated with maritime-influenced habitat.

Silvicultural Objective/Desired Condition (Deer Winter Range):

The management goal of young-growth treatment in this landscape zone is to improve growth, productivity, and 

forest health, while managing for a sustained yield, even flow of an industrial wood supply and improving deer 

winter range conditions in treated stands for the remainder of the rotation.

Silvicultural Prescription: Intermediate Treatment Crown Thinning

Apply crown thinning at approximately stand age 50. Crown thinning should retain at least 50% of the existing 

pretreatment stand basal area at that time. Retain trees in a generally uniform pattern. Skips or thickets may be left 

where logging system difficulties occur, in portions of settings where windthrow risk is expected to be unacceptable 

after thinning like along exposed stand edges or knobs, and in any areas where wildlife dens or nests are found. 

Gaps may occur where cable corridors come together near landings or other areas where extra room is needed to 

facilitate yarding or meet specific wildlife objectives.

Silvicultural Prescription: Systematic Thinning

Apply systematic thinning strips in portions of the unit unsuitable for uniform thinning. Systematic thinning should 

be applied primarily in downhill settings where full suspension cannot be achieved or other areas where uniform 

thinning will result in unacceptable levels of residual tree damage or otherwise is operationally infeasible. 

Systematic thinning should remove all trees within corridors 20 to 60 feet wide depending on operational feasibility, 

visual concerns and /or windthrow potential. Maintain a 60-120 foot distance between cut corridors resulting in at 

least a 50% basal area retention. Where visuals are of concern, cut corridors should be kept to approximately 20 feet 

in width pending scenery direction. Although parallel strips are likely to be most common, there are options for fan 

shapes, depending on landing/road locations.

The treatments being proposed are based on the analysis of current data for this stand projected forward in time 

using growth modeling. Marking guidelines covering the specifics of the treatment, such as species to favor for 

retention will be developed at the time of treatment.

TIMBER/YARDING: Shovel and cable yarding to the proposed temporary road and NFS road 3000302.

ENGINEERING/ROADS: Unit is accessed by a proposed temporary road of 500 feet, constructed over 

decommissioned road bed.

BOTANY: No Concerns

INVASIVE SPECIES: No Concerns

FISHERIES: Streams tributaries to Ratz Creek and Trumpeter Lake. Lake 1 is Trumpeter Lake and Stream 1 is Ratz 

Creek.

Stream#: Lake 1 Class: I Flagging: B/W C-Type: L Concerns: none 

Buffer (RMA): Class I for Lake-A1 greater of 100 horizontal feet or to the extent of flood plain, riparian vegetation 

or soils, riparian associated wetland fens, or height of one site potential tree.

Alternatives: ROD Buffer (RAW): no review needed Protection: Category A

Stream#: 1 Class: I Flagging: B/W C-Type: FPL Concerns: none

Buffer (RMA): Class I for FPL greater of 130 feet, flood plain, riparian vegetation or soils, or riparian associated 

wetland fens. 

706 - Big Thorne Project Record of Decision Appendix 1
Alternatives: ROD Buffer (RAW): no review needed Protection: Category A

Stream#: 1.1L Class: I, IV Flagging: B/W, G/W C-Type: HCO, MMO Concerns: blowdown

Buffer (RMA): Class I for HCO greater of 100 feet or to the top of the side-slope break. 

Alternatives: ROD Buffer (RAW): no review needed Protection: Category A and C

Stream#: 1.3L Class: II, IV Flagging: B/W, G/W C-Type: HCO Concerns: blowdown

Buffer (RMA): Class II for HCO greater of 100 feet or to the top of the side-slope break. 

Alternatives: ROD Buffer (RAW): no review needed Protection: Category A and C

Stream#: 1.4L Class: I Flagging: B/W C-Type: MMS, MMO Concerns: none

Buffer (RMA): Class I for MMS and MMO greater of 120 feet, flood plain, riparian vegetation or soils, or riparian 

associated wetland fens. 

Alternatives: ROD Buffer (RAW): no review needed Protection: Category A

All other streams in unit: Class IV Flagging: G/W C-Type: HC or MM 

Concerns: none Buffer (RMA): none Protection: Category C

Temporary road (reopened decommissioned) for Unit 561: No known stream crossings. If any stream crossings are 

found, crossings structures and locations will be approved by USFS, in consultation with fisheries biologist or 

hydrologist, prior to construction (BMP 14.17). During construction of temporary roads implement BMPs 12.17, 

13.10, 13.11, 13.16, 14.3, and 14.5.

GEOLOGY/KARST: No Concerns

HERITAGE RESOURCES: This unit was investigated per the third amended interagency Programmatic Agreement 

(PA) for historic properties. As specified by the PA, any potential adverse effect on historic properties (if any) was 

mitigated and portions of the Area of Potential Effect will be monitored by a qualified heritage specialist during 

and/or after actual ground disturbance.

SCENERY: 

Unit has about 9 acres in Moderate SIO and 22 acres in Very Low SIO.

RECREATION: No Concerns

SOILS/WETLANDS: Slopes are estimated to range from about 15% to about 60%. There are approximately 24 

acres of forested wetland located primarily in the western polygon (R10 BMP 12.5 and National Core BMPs 

AqEco-2 and AqEco-4). The soils and wetlands are suitable for a minimum of partial suspension cable yarding or 

shovel yarding and should follow R10 BMPs 12.5, 13.2 and 13.9 and National Core BMPs Plan-2, Veg-2, Veg-4, 

Veg-5, and Veg-6. Follow shovel yarding guidelines outlined in the introductions to unit cards (R10 BMP 13.9 and 

National Core Veg-4). Partial harvest with ground-based removal and partial suspension thinning will meet soil 

quality standards.

WILDLIFE: 

Commercial thinning will enhance wildlife habitat near Trumpeter Lake by improving forage availability and 

removing the stand for the stem exclusion phase for the duration of rotation (until it is harvested again).

Unit is adjacent to a small OGR. 

Appendix 1 - Unit Cards - 707 Appendix 1
3000000

3025000

3000303

3000304

3025500

3000302

3000303

2

1.4L

1.5L

2

1

3

1.1 L

1.1L

1.1L.1R

2

1.3L

1

1.4L.1R

2

1.2L

1

2

1

1.2L

1964

1995

1964

1960

1965

1965

1965

560

561

562

559

A

A

B

B

C

C

D

D

E

E

F

F

G

G

H

H

I

I

J

J

10 10

9 9

8 8

7 7

6 6

5 5

4 4

3 3

2 2

1 1

Unit Number 561 ROD VCU: 

0 500

Feet

Past Harvest

(Year Origin)

Unsuitable Soils

Riparian Management

Area

Slope > 72%

Other Ownership

Old Growth Habitat LUD

Recreation River LUD

Scenic River LUD

State Highway

National Forest System Road - Open

National Forest System Road - Stored

Non-National Forest 

System Road

Proposed Reconstructed Road

Proposed System Road 

(reopened Decommissioned)

Proposed Temporary Road 

(reopened Decommissioned)

Proposed System Road

Proposed Temporary

Road

Young Growth

Systematic Strip Thin

Uniform Crown Thin

Old Growth

Helicopter

Shovel or Cable

Partial Cut

Class 1 Stream

Class 2 Stream

Class 3 Stream

Class 4 Stream

Lake

100’ Contour

Eagle Nest Buffer

Legacy

Visual Buffer

Deferred (within

Original Unit

Reconnaissance

Area)

583

R:\projects_2010\BigThorneEIS\maps\Unitcards\ROD_YG.mxd 3 June 2013

RR

SR

Young Growth

708 - Big Thorne Project Record of Decision Appendix 1
Unit 

Number: 562

Alternatives: ROD Total Unit 35.1

Acres: 

Prescription: Systematic and 

Crown Thinning

VCU 

Number: 583

Yarding System:

Cable, Shovel

Net Harvest

Volume 262

(MBF): 

LUD: Old Growth Habitat

Summary of Concerns, Responses, BMPs and Mitigation

SILVICULTURE: 

Existing Conditions: This unit lies entirely within Stand #5830200551. The stand origination date is 1960. The stand 

area within this unit has not been pre-commercially thinned. The site potential in this unit appears to be high. The 

unit is in a successional stage of stem exclusion. This unit lies within the Old-growth Habitat landscape zone, and is 

located in the Ratz Harbor young-growth study area.

Silvicultural Objective/Desired Condition (Old-Growth Habitat):

The management objectives of young-growth treatments in Landscape Zone B are to accelerate development of 

advanced seral stand structure in order to restore the ecological integrity of habitat. Characteristics needed for 

wildlife habitat vary with the forest type and site potential of each stand. Treatments are intended to improve 

habitats, corridors, and connectivity for eagles, goshawks, deer, marten, otter, bear, and other wildlife species 

associated with maritime-influenced habitat.

Silvicultural Prescription: Intermediate Treatment Crown Thinning

Apply crown thinning at approximately stand age 50. Crown thinning should retain at least 50% of the existing 

pretreatment stand basal area at that time. Retain trees in a generally uniform pattern. Skips or thickets may be left 

where logging system difficulties occur, in portions of settings where windthrow risk is expected to be unacceptable 

after thinning like along exposed stand edges or knobs, and in any areas where wildlife dens or nests are found. 

Gaps may occur where cable corridors come together near landings or other areas where extra room is needed to 

facilitate yarding or meet specific wildlife objectives.

Silvicultural Prescription: Systematic Thinning

Apply systematic thinning strips in portions of the unit unsuitable for uniform thinning. Systematic thinning should 

be applied primarily in downhill settings where full suspension cannot be achieved or other areas where uniform 

thinning will result in unacceptable levels of residual tree damage or otherwise is operationally infeasible. 

Systematic thinning should remove all trees within corridors 20 to 60 feet wide depending on operational feasibility, 

visual concerns and /or windthrow potential. Maintain a 60-120 foot distance between cut corridors resulting in at 

least a 50% basal area retention. Where visuals are of concern, cut corridors should be kept to approximately 20 feet 

in width pending scenery direction. Although parallel strips are likely to be most common, there are options for fan 

shapes, depending on landing/road locations.

The treatments being proposed are based on the analysis of current data for this stand projected forward in time 

using growth modeling. Marking guidelines covering the specifics of the treatment, such as species to favor for 

retention will be developed at the time of treatment.

TIMBER/YARDING: Shovel and cable yarding to NFS road 3000302.

ENGINEERING/ROADS: No proposed road construction or reconstruction.

BOTANY: No Concerns

INVASIVE SPECIES: No Concerns

FISHERIES: Streams tributaries to Trumpeter Lake. Lake 1 is Trumpeter Lake.

Stream#: Lake 1 Class: I Flagging: B/W C-Type: L Concerns: none

Buffer (RMA): Class I for Lake-A1 greater of 100 horizontal feet or to the extent of flood plain, riparian vegetation 

or soils, riparian associated wetland fens, or height of one site potential tree.

Alternatives: ROD Buffer (RAW): no review needed Protection: Category A

Stream #: 1 Class: II Flagging: B/W C-Type: HCO Concerns: none

Buffer (RMA): Class II for HCO greater of 100 feet or to the top of the side-slope break. 

Alternatives: ROD Buffer (RAW): no review needed Protection: Category A

Stream #: 2 Class: II Flagging: B/W C-Type: MCO Concerns: none

Buffer (RMA): Class II for MCO greater of 100 feet or to the top of the side-slope break. 

Alternatives: ROD Buffer (RAW): no review needed Protection: Category A

Stream #: 3 Class: II, IV Flagging: B/W, G/W C-Type: HCO Concerns: none

Buffer (RMA): Class II for HCO greater of 100 feet or to the top of the side-slope break. 

Appendix 1 - Unit Cards - 709 Appendix 1
Alternatives: ROD Buffer (RAW): no review needed Protection: Category A and C

Stream #: 4 Class: II Flagging: B/W C-Type: PAO, MCO Concerns: none

Buffer (RMA): Class II for PAO greater of 100 feet, flood plain, riparian vegetation or soils, or riparian associated 

wetland fens. Class II for MCO greater of 100 feet or to the top of the side-slope break. 

Alternatives: ROD Buffer (RAW): no review needed Protection: Category A

Stream #: 5 Class: I Flagging: B/W C-Type: FPM, MCM Concerns: none

Buffer (RMA): Class I for FPM greater of 130 feet, flood plain, riparian vegetation or soils, or riparian associated 

wetland fens. Class I for MCM greater of 100 feet or to the top of the side-slope break. 

Alternatives: ROD Buffer (RAW): no review needed Protection: Category A

Stream #: 5.2L Class: II Flagging: B/W C-Type: HCO Concerns: none

Buffer (RMA): Class II for HCO greater of 100 feet or to the top of the side-slope break. 

Alternatives: ROD Buffer (RAW): no review needed Protection: Category A

All other streams in unit: Class IV Flagging: G/W C-Type: HC or MM 

Concerns: none Buffer (RMA): none Protection: Category C

GEOLOGY/KARST: No Concerns

HERITAGE RESOURCES: This unit was investigated per the third amended interagency Programmatic Agreement 

(PA) for historic properties. As specified by the PA, any potential adverse effect on historic properties (if any) was 

mitigated and portions of the Area of Potential Effect will be monitored by a qualified heritage specialist during 

and/or after actual ground disturbance.

SCENERY: 

Unit is entirely in High SIO because it is in an OGR. About 33 acres are planned for systematic thinning. Implement 

narrow thinning corridors in order to minimize visibility.

RECREATION: 

Unit is close to the Big Lake Fish Pass Wildlife Viewing site. Although this is not a heavily used site, it is a 

developed recreation site. Thinning should take place outside the fish window so that access is not restricted during 

the peak visitor use period and should be neat and clean in appearance near the fish pass. During thinning 

operations, minimize access restrictions.

SOILS/WETLANDS: 

It is estimated that slopes range from about 15% to near 70% in the southeast upper slopes. All slopes greater than 

72% will be verified prior to implementation. Isolated pockets of forested wetland is found in the unit (R10 BMP 

12.5 and National Core BMPs AqEco-2 and AqEco-4). The soils and wetlands are suitable for a minimum of partial 

suspension cable yarding or shovel yarding and should follow R10 BMPs 12.5, 13.2 and 13.9 and National Core 

BMPs Plan-2, Veg-2, Veg-4, Veg-5, and Veg-6. Follow shovel yarding guidelines outlined in the introductions to 

unit cards (R10 BMP 13.9 and National Core Veg-4). Partial harvest with ground-based removal and partial 

suspension thinning will meet soil quality standards.

WILDLIFE: 

Commercial thinning will enhance wildlife habitat near Trumpeter Lake by improving forage availability and 

removing the stand for the stem exclusion phase for the duration of rotation (until it is harvested again), though a 

road would be reopened to access unit.

Unit is within a small OGR (consistent with Forest Plan); create and maintain narrow thinning corridors in 

systematic thinning areas.

710 - Big Thorne Project Record of Decision Appendix 1
3000304

3023525

3000302

3000303

3000306

3000301

4

3

5.1L

2

5

3

1.1 L

2

1.1L.1R

2

1.3L

1

4 1.6L

1.10R

1

1

1.6L

1.2L

1.6L.1R

2

5.2L

1

1

1. 9R

1965

2006

1960

1995

1963

1995

1965

1995

559

560

561

562

172

A

A

B

B

C

C

D

D

E

E

F

F

G

G

H

H

I

I

J

J

10 10

9 9

8 8

7 7

6 6

5 5

4 4

3 3

2 2

1 1

Unit Number 562 ROD VCU: 

0 500

Feet

Past Harvest

(Year Origin)

Unsuitable Soils

Riparian Management

Area

Slope > 72%

Other Ownership

Old Growth Habitat LUD

Recreation River LUD

Scenic River LUD

State Highway

National Forest System Road - Open

National Forest System Road - Stored

Non-National Forest 

System Road

Proposed Reconstructed Road

Proposed System Road 

(reopened Decommissioned)

Proposed Temporary Road 

(reopened Decommissioned)

Proposed System Road

Proposed Temporary

Road

Young Growth

Systematic Strip Thin

Uniform Crown Thin

Old Growth

Helicopter

Shovel or Cable

Partial Cut

Class 1 Stream

Class 2 Stream

Class 3 Stream

Class 4 Stream

Lake

100’ Contour

Eagle Nest Buffer

Legacy

Visual Buffer

Deferred (within

Original Unit

Reconnaissance

Area)

583

R:\projects_2010\BigThorneEIS\maps\Unitcards\ROD_YG.mxd 3 June 2013

RR

SR

Young Growth

Appendix 1 - Unit Cards - 711 Appendix 1
Unit 

Number: 563

Alternatives: ROD Total Unit 44.2

Acres: 

Prescription: Systematic and 

Crown Thinning

VCU 

Number: 583

Yarding System:

Cable

Net Harvest

Volume 328

(MBF): 

LUD: Modified Landscape

Summary of Concerns, Responses, BMPs and Mitigation

SILVICULTURE: 

Existing Conditions: This unit lies entirely within Stand #5830300524. The stand origination date is 1965. This 

stand has been entirely pre-commercially thinned, which was primarily completed in 1994. The site potential in this 

unit appears to be high. The unit is in a successional stage of stem exclusion. This unit lies within the Deer Winter 

Range landscape zone, and is located in the Ratz Harbor young-growth study area.

Silvicultural Objective/Desired Condition (Deer Winter Range):

The management goal of young-growth treatment in this landscape zone is to improve growth, productivity, and 

forest health, while managing for a sustained yield, even flow of an industrial wood supply and improving deer 

winter range conditions in treated stands for the remainder of the rotation.

Silvicultural Prescription: Intermediate Treatment Crown Thinning

Apply crown thinning at approximately stand age 50. Crown thinning should retain at least 50% of the existing 

pretreatment stand basal area at that time. Retain trees in a generally uniform pattern. Skips or thickets may be left 

where logging system difficulties occur, in portions of settings where windthrow risk is expected to be unacceptable 

after thinning like along exposed stand edges or knobs, and in any areas where wildlife dens or nests are found. 

Gaps may occur where cable corridors come together near landings or other areas where extra room is needed to 

facilitate yarding or meet specific wildlife objectives.

Silvicultural Prescription: Systematic Thinning

Apply systematic thinning strips in portions of the unit unsuitable for uniform thinning. Systematic thinning should 

be applied primarily in downhill settings where full suspension cannot be achieved or other areas where uniform 

thinning will result in unacceptable levels of residual tree damage or otherwise is operationally infeasible. 

Systematic thinning should remove all trees within corridors 20 to 60 feet wide depending on operational feasibility, 

visual concerns and /or windthrow potential. Maintain a 60-120 foot distance between cut corridors resulting in at 

least a 50% basal area retention. Where visuals are of concern, cut corridors should be kept to approximately 20 feet 

in width pending scenery direction. Although parallel strips are likely to be most common, there are options for fan 

shapes, depending on landing/road locations.

The treatments being proposed are based on the analysis of current data for this stand projected forward in time 

using growth modeling. Marking guidelines covering the specifics of the treatment, such as species to favor for 

retention will be developed at the time of treatment.

TIMBER/YARDING: Shovel and cable yarding to NFS roads 3000306 and 3000000.

ENGINEERING/ROADS: Unit is accessed by reconstruction of NFS road 3000306, totaling 1,700 feet. See road 

card for information on NFS road.

BOTANY: No Concerns

INVASIVE SPECIES: No Concerns

FISHERIES: Streams are tributaries to Trumpeter Lake. 

Stream#: 2 Class: I, IV Flagging: B/W, G/W C-Type: AFM, HCM, HCO Concerns: none

Buffer (RMA): Class I for AFM greater of 140 feet or active portion of the alluvial fan. Class I for HCM greater of 

100 feet or to the top of the side-slope break.

Alternatives: ROD Buffer (RAW): no review needed Protection: Category A and C

Stream#: 2.1R Class: II, IV Flagging: B/W, G/W C-Type: HCO Concerns: none

Buffer (RMA): Class II for HCO greater of 100 feet or to the top of the side-slope break.

Alternatives: ROD Buffer (RAW): no review needed Protection: Category A and C

Stream#: 3 Class: II, IV Flagging: B/W, G/W C-Type: HCO Concerns: none

Buffer (RMA): Class II for HCO greater of 100 feet or to the top of the side-slope break.

Alternatives: ROD Buffer (RAW): no review needed Protection: Category A and C

GEOLOGY/KARST: No Concerns

HERITAGE RESOURCES: This unit was investigated per the third amended interagency Programmatic Agreement 

(PA) for historic properties. As specified by the PA, any potential adverse effect on historic properties (if any) was 

mitigated and portions of the Area of Potential Effect will be monitored by a qualified heritage specialist during 

712 - Big Thorne Project Record of Decision Appendix 1
and/or after actual ground disturbance.

SCENERY: 

About 14 acres in Moderate SIO, 26 acres in Low SIO, and 4 acres in Very Low SIO. About 10 acres of the 

Moderate SIO area is prescribed for systematic thinning, along with almost all of the Low SIO areas. Implement 

narrow thinning corridors in order to minimize visibility, at least for those that are perpendicular to the 30 Road. 

Corridors can be widened along the 3000306 Road if they can run parallel to the 30 Road to make them less visible.

RECREATION: 

No Concerns

SOILS/WETLANDS: 

It is estimated that slopes range from about 20% to about 60%. A debris avalanche initiated in 1988. There are 

approximately 16 acres of forested wetland adjacent to the northern and eastern edges of the unit (R10 BMP 12.5 

and National Core BMPs AqEco-2 and AqEco-4). The soils and wetlands are suitable for a minimum of partial 

suspension cable yarding and should follow R10 BMPs 12.5, 13.2 and 13.9 and National Core BMPs Plan-2, Veg-2, 

Veg-5, and Veg-6. Partial suspension thinning will meet soil quality standards.

WILDLIFE: 

Commercial thinning will enhance wildlife habitat near Trumpeter Lake by improving forage availability and 

removing the stand for the stem exclusion phase for the duration of rotation (until it is harvested again).

Appendix 1 - Unit Cards - 713 Appendix 1
3000000

3023525

3000306

3000306

1.2L

4.1R

2

3

4

1

1.1R

3

1

1.1L

1.3L

1.1L

2.1R

2

1964

1965

1965

1963

1995

1990

563

564

174

175

176

178

561

A

A

B

B

C

C

D

D

E

E

F

F

G

G

H

H

I

I

J

J

10 10

9 9

8 8

7 7

6 6

5 5

4 4

3 3

2 2

1 1

Unit Number 563 ROD VCU: 

0 500

Feet

Past Harvest

(Year Origin)

Unsuitable Soils

Riparian Management

Area

Slope > 72%

Other Ownership

Old Growth Habitat LUD

Recreation River LUD

Scenic River LUD

State Highway

National Forest System Road - Open

National Forest System Road - Stored

Non-National Forest 

System Road

Proposed Reconstructed Road

Proposed System Road 

(reopened Decommissioned)

Proposed Temporary Road 

(reopened Decommissioned)

Proposed System Road

Proposed Temporary

Road

Young Growth

Systematic Strip Thin

Uniform Crown Thin

Old Growth

Helicopter

Shovel or Cable

Partial Cut

Class 1 Stream

Class 2 Stream

Class 3 Stream

Class 4 Stream

Lake

100’ Contour

Eagle Nest Buffer

Legacy

Visual Buffer

Deferred (within

Original Unit

Reconnaissance

Area)

583

R:\projects_2010\BigThorneEIS\maps\Unitcards\ROD_YG.mxd 3 June 2013

RR

SR

Young Growth

714 - Big Thorne Project Record of Decision Appendix 1
Unit 

Number: 564

Alternatives: ROD Total Unit 9.5

Acres: 

Prescription: Systematic 

Thinning

VCU 

Number: 583

Yarding System:

Cable

Net Harvest

Volume 74

(MBF): 

LUD: Modified Landscape

Summary of Concerns, Responses, BMPs and Mitigation

SILVICULTURE: 

Existing Conditions: This unit lies entirely within Stand #5830300524. The stand origination date is 1965. This 

stand has been entirely pre-commercially thinned, which was primarily completed in 1994. The site potential in this 

unit appears to be high. The unit is in a successional stage of stem exclusion. This unit lies within the Deer Winter 

Range landscape zone, and is located in the Ratz Harbor young-growth study area.

Silvicultural Objective/Desired Condition (Deer Winter Range):

The management goal of young-growth treatment in this landscape zone is to improve growth, productivity, and 

forest health, while managing for a sustained yield, even flow of an industrial wood supply and improving deer 

winter range conditions in treated stands for the remainder of the rotation.

Silvicultural Prescription: Systematic Thinning

Apply systematic thinning strips in portions of the unit unsuitable for uniform thinning. Systematic thinning should 

be applied primarily in downhill settings where full suspension cannot be achieved or other areas where uniform 

thinning will result in unacceptable levels of residual tree damage or otherwise is operationally infeasible. 

Systematic thinning should remove all trees within corridors 20 to 60 feet wide depending on operational feasibility, 

visual concerns and /or windthrow potential. Maintain a 60-120 foot distance between cut corridors resulting in at 

least a 50% basal area retention. Where visuals are of concern, cut corridors should be kept to approximately 20 feet 

in width pending scenery direction. Although parallel strips are likely to be most common, there are options for fan 

shapes, depending on landing/road locations.

The treatments being proposed are based on the analysis of current data for this stand projected forward in time 

using growth modeling. Marking guidelines covering the specifics of the treatment, such as species to favor for 

retention will be developed at the time of treatment.

TIMBER/YARDING: Cable yarding to NFS road 3000000.

ENGINEERING/ROADS: No proposed road construction or reconstruction.

BOTANY: No Concerns

INVASIVE SPECIES: No Concerns

FISHERIES: Streams are tributaries to Ratz Creek. 

Stream#: 1 Class: II Flagging: B/W C-Type: HCM Concerns: none

Buffer (RMA): Class II for HCV greater of 100 feet or to the top of the side-slope break.

Alternatives: ROD Buffer (RAW): no review needed Protection: Category A

Stream#: 1.1L Class: II, IV Flagging: B/W, G/W C-Type: HCO Concerns: none

Buffer (RMA): Class II for HCO greater of 100 feet or to the top of the side-slope break.

Alternatives: ROD Buffer (RAW): no review needed Protection: Category A and C

All other streams in unit: Class IV Flagging: G/W C-Type: HC or MM 

Concerns: none Buffer (RMA): none Protection: Category C

GEOLOGY/KARST: No Concerns

HERITAGE RESOURCES: This unit was investigated per the third amended interagency Programmatic Agreement

(PA) for historic properties. As specified by the PA, any potential adverse effect on historic properties (if any) was 

mitigated and portions of the Area of Potential Effect will be monitored by a qualified heritage specialist during 

and/or after actual ground disturbance.

SCENERY: 

Unit is entirely Moderate SIO and includes about 10 acres of systematic thinning. Implement narrow thinning 

corridors in order to minimize visibility of harvest from 30 Road.

RECREATION: 

No Concerns

SOILS/WETLANDS: 

It is estimated that slopes range from about 30% to near 70%. All slopes greater than 72% will be verified prior to 

implementation. There are approximately 3 acres of forested wetland/emergent sedge complex and 2 acres of

forested wetland adjacent to the northern edge of the unit (R10 BMP 12.5 and National Core BMPs AqEco-2 and 

AqEco-4). The soils and wetlands are suitable for a minimum of partial suspension cable yarding and should follow 

Appendix 1 - Unit Cards - 715 Appendix 1
R10 BMPs 12.5, 13.2 and 13.9 and National Core BMPs Plan-2, Veg-2, Veg-5, and Veg-6. Partial suspension 

thinning will meet soil quality standards.

WILDLIFE: 

Commercial thinning will enhance wildlife habitat near Trumpeter Lake by improving forage availability and 

removing the stand for the stem exclusion phase for the duration of rotation (until it is harvested again).

716 - Big Thorne Project Record of Decision Appendix 1
3000306

3000000

3000306

1.1L

2.1R

2

2

4.1R

1

3

4

1.1R

1964

1965

1990

1964

1965 1995

1963

563

564

174

175

176

178

A

A

B

B

C

C

D

D

E

E

F

F

G

G

H

H

I

I

J

J

10 10

9 9

8 8

7 7

6 6

5 5

4 4

3 3

2 2

1 1

Unit Number 564 ROD VCU: 

0 500

Feet

Past Harvest

(Year Origin)

Unsuitable Soils

Riparian Management

Area

Slope > 72%

Other Ownership

Old Growth Habitat LUD

Recreation River LUD

Scenic River LUD

State Highway

National Forest System Road - Open

National Forest System Road - Stored

Non-National Forest 

System Road

Proposed Reconstructed Road

Proposed System Road 

(reopened Decommissioned)

Proposed Temporary Road 

(reopened Decommissioned)

Proposed System Road

Proposed Temporary

Road

Young Growth

Systematic Strip Thin

Uniform Crown Thin

Old Growth

Helicopter

Shovel or Cable

Partial Cut

Class 1 Stream

Class 2 Stream

Class 3 Stream

Class 4 Stream

Lake

100’ Contour

Eagle Nest Buffer

Legacy

Visual Buffer

Deferred (within

Original Unit

Reconnaissance

Area)

583

R:\projects_2010\BigThorneEIS\maps\Unitcards\ROD_YG.mxd 3 June 2013

RR

SR

Young Growth

Appendix 1 - Unit Cards - 717 Appendix 1
Unit 

Number: 565

Alternatives: ROD Total Unit 2.1

Acres: 

Prescription: Crown Thinning

VCU 

Number: 581 

Yarding System:

Shovel

Net Harvest

Volume 12

(MBF): 

LUD: Modified Landscape

Summary of Concerns, Responses, BMPs and Mitigation

SILVICULTURE: 

Existing Conditions: This unit lies entirely within Stand #5810200504. The stand origination date is 1969. 

Approximately 66% of the stand area has been pre-commercially thinned, which was completed in 1989. The site 

potential appears to range from medium to high. This unit is in a successional stage of stem exclusion. The unit is in 

the Deer Winter Range landscape zone.

Silvicultural Objective/Desired Condition (Deer Winter Range):

The management goal of young-growth treatment in this landscape zone is to improve growth, productivity, and 

forest health, while managing for a sustained yield, even flow of an industrial wood supply and improving deer 

winter range conditions in treated stands for the remainder of the rotation.

Silvicultural Prescription: Intermediate Treatment Crown Thinning

Apply crown thinning at approximately stand age 50. Crown thinning should retain at least 50% of the existing 

pretreatment stand basal area at that time. Retain trees in a generally uniform pattern. Skips or thickets may be left 

where logging system difficulties occur, in portions of settings where windthrow risk is expected to be unacceptable 

after thinning like along exposed stand edges or knobs, and in any areas where wildlife dens or nests are found. 

Gaps may occur where cable corridors come together near landings or other areas where extra room is needed to 

facilitate yarding or meet specific wildlife objectives.

The treatments being proposed are based on the analysis of current data for this stand projected forward in time 

using growth modeling. Marking guidelines covering the specifics of the treatment, such as species to favor for 

retention will be developed at the time of treatment.

TIMBER/YARDING: Shovel yarding to NFS road 3000000.

ENGINEERING/ROADS: No proposed road construction or reconstruction.

BOTANY: No Concerns

INVASIVE SPECIES: No Concerns

FISHERIES: Streams are tributaries to Luck Creek. 

Stream#: 2 Class: II Flagging: B/W C-Type: MMO Concerns: none

Buffer (RMA): Class II for MMO greater of 120 feet, flood plain, riparian vegetation or soils, or riparian associated 

wetland fens.

Alternatives: ROD Buffer (RAW): no review needed Protection: Category A

Stream#: 2.1R Class: II, IV Flagging: B/W, G/W C-Type: MMO Concerns: none

Buffer (RMA): Class II for MMO greater of 120 feet, flood plain, riparian vegetation or soils, or riparian associated 

wetland fens.

Alternatives: ROD Buffer (RAW): no review needed Protection: Category A

All other streams in unit: Class IV Flagging: G/W C-Type: HC or MM 

Concerns: none Buffer (RMA): none Protection: Category C

GEOLOGY/KARST: No Concerns

HERITAGE RESOURCES: This unit was investigated per the third amended interagency Programmatic Agreement 

(PA) for historic properties. As specified by the PA, any potential adverse effect on historic properties (if any) was 

mitigated and portions of the Area of Potential Effect will be monitored by a qualified heritage specialist during 

and/or after actual ground disturbance.

SCENERY: 

Unit consists of about 3 acres with Moderate SIO and 1 acre with Low SIO and includes all uniform thinning. 

Attempt to minimize visibility from the 30 Road.

RECREATION: 

No Concerns

SOILS/WETLANDS: 

It is estimated that slopes range from about 10% to about 30%. There are approximately 2 acres of forested 

wetland/emergent sedge complex adjacent to the western unit boundary ((R10 BMP 12.5 and National Core BMPs AqEco-2 

and AqEco-4). The soils and wetlands are suitable for shovel yarding. Follow shovel yarding guidelines outlined in the 

718 - Big Thorne Project Record of Decision Appendix 1
introductions to unit cards (R10 BMP 13.9 and National Core BMPs Plan-2, Veg-2, and Veg-4). Partial harvest with 

ground-based removal will meet soil quality standards.

WILDLIFE: 

Commercial thinning will enhance wildlife habitat near Luck Lake by improving forage availability and removing 

the stand for the stem exclusion phase for the duration of rotation (until it is harvested again).

Appendix 1 - Unit Cards - 719 Appendix 1
3000000

3000310

3000305

3000320

3000325

3000310

3000310

3000325

4

5

4

1

2

1

5.2 L

4.1 R

2

3

1

4

3.1L

2.1 R

5.30 R

3

1969

1969 1969

2006

1969

1969

1970

1969

2006

1969

1973

1969

567

565

566

A

A

B

B

C

C

D

D

E

E

F

F

G

G

H

H

I

I

J

J

10 10

9 9

8 8

7 7

6 6

5 5

4 4

3 3

2 2

1 1

Unit Number 565 ROD VCU: 

0 500

Feet

Past Harvest

(Year Origin)

Unsuitable Soils

Riparian Management

Area

Slope > 72%

Other Ownership

Old Growth Habitat LUD

Recreation River LUD

Scenic River LUD

State Highway

National Forest System Road - Open

National Forest System Road - Stored

Non-National Forest 

System Road

Proposed Reconstructed Road

Proposed System Road 

(reopened Decommissioned)

Proposed Temporary Road 

(reopened Decommissioned)

Proposed System Road

Proposed Temporary

Road

Young Growth

Systematic Strip Thin

Uniform Crown Thin

Old Growth

Helicopter

Shovel or Cable

Partial Cut

Class 1 Stream

Class 2 Stream

Class 3 Stream

Class 4 Stream

Lake

100’ Contour

Eagle Nest Buffer

Legacy

Visual Buffer

Deferred (within

Original Unit

Reconnaissance

Area)

581

R:\projects_2010\BigThorneEIS\maps\Unitcards\ROD_YG.mxd 3 June 2013

RR

SR

Young Growth

720 - Big Thorne Project Record of Decision Appendix 1
Unit 

Number: 566

Alternatives: ROD Total Unit 14.5

Acres: 

Prescription: Crown Thinning

VCU 

Number: 581 

Yarding System:

Cable

Net Harvest

Volume 85

(MBF): 

LUD: Modified Landscape

Summary of Concerns, Responses, BMPs and Mitigation

SILVICULTURE: 

Existing Conditions: This unit lies entirely within Stand #5810200504. The stand origination date is 1969. 

Approximately 87% of the stand area was pre-commercially thinned in 1989. The site potential appears to range 

from medium to high. The unit is in a successional stage of stem exclusion. This unit lies within the Deer Winter 

Range landscape zone.

Silvicultural Objective/Desired Condition (Deer Winter Range):

The management goal of young-growth treatment in this landscape zone is to improve growth, productivity, and 

forest health, while managing for a sustained yield, even flow of an industrial wood supply and improving deer 

winter range conditions in treated stands for the remainder of the rotation.

Silvicultural Prescription: Intermediate Treatment Crown Thinning

Apply crown thinning at approximately stand age 50. Crown thinning should retain at least 50% of the existing 

pretreatment stand basal area at that time. Retain trees in a generally uniform pattern. Skips or thickets may be left 

where logging system difficulties occur, in portions of settings where windthrow risk is expected to be unacceptable 

after thinning like along exposed stand edges or knobs, and in any areas where wildlife dens or nests are found. 

Gaps may occur where cable corridors come together near landings or other areas where extra room is needed to 

facilitate yarding or meet specific wildlife objectives.

The treatments being proposed are based on the analysis of current data for this stand projected forward in time 

using growth modeling. Marking guidelines covering the specifics of the treatment, such as species to favor for 

retention will be developed at the time of treatment.

TIMBER/YARDING: Cable yarding to NFS road 3000310.

ENGINEERING/ROADS: Unit is accessed by reconstruction of NFS road 3000310, totaling 3,800 feet. See road 

card for information on NFS road.

BOTANY: No Concerns

INVASIVE SPECIES: No Concerns

FISHERIES: Streams tributaries to Luck Creek. 

Stream#: 1 Class: II, IV Flagging: B/W, G/W C-Type: HCO Concerns: none

Buffer (RMA): Class II for HCO greater of 100 feet or to the top of the side-slope break.

Alternatives: ROD Buffer (RAW): no review needed Protection: Category A and C

Stream#: 5 Class: I, II Flagging: B/W C-Type: AFH, HCD Concerns: none

Buffer (RMA): Class I for AFH greater of 140 feet or active portion of the alluvial fan. Class II for HCD greater of 

100 feet or to the top of the side-slope break. 

Alternatives: ROD Buffer (RAW): no review needed Protection: Category A 

All other streams in unit: Class IV Flagging: G/W C-Type: HC or MM 

Concerns: none Buffer (RMA): none Protection: Category C

GEOLOGY/KARST: No Concerns

HERITAGE RESOURCES: This unit was investigated per the third amended interagency Programmatic Agreement 

(PA) for historic properties. As specified by the PA, any potential adverse effect on historic properties (if any) was 

mitigated and portions of the Area of Potential Effect will be monitored by a qualified heritage specialist during 

and/or after actual ground disturbance.

SCENERY: Unit consists of about 13.5 acres of Low SIO and 1.5 acres of Very Low SIO and is prescribed for 

uniform thinning. No concerns.

RECREATION: No Concerns

SOILS/WETLANDS: 

It is estimated that slopes range from about 15% to about 45%. No wetlands have been mapped in the unit. The soils 

and wetlands are suitable for a minimum of partial suspension cable yarding and should follow R10 BMPs 12.5, 

13.2 and 13.9 and National Core BMPs Plan-2, Veg-2, Veg-5, and Veg-6. Partial harvest with partial suspension 

thinning will meet soil quality standards.

WILDLIFE: 

Commercial thinning will enhance wildlife habitat near Luck Lake by improving forage availability and removing 

Appendix 1 - Unit Cards - 721 Appendix 1
the stand for the stem exclusion phase for the duration of rotation (until it is harvested again). A road would be 

reconstructed to access the unit.

722 - Big Thorne Project Record of Decision Appendix 1
3000000

3000310

3000320

3000310

3000305

3030110

3000325

3000310

3000325

2.1 R

5.30 R

3

4

5

2

1

5.2 L

1

2

3

1

4

3.1L

1969 1996 1993

1969

1969

2006

1969

1970 2006

1969

1969

1969

2006

2006

567

565

566

A

A

B

B

C

C

D

D

E

E

F

F

G

G

H

H

I

I

J

J

10 10

9 9

8 8

7 7

6 6

5 5

4 4

3 3

2 2

1 1

Unit Number 566 ROD VCU: 

0 500

Feet

Past Harvest

(Year Origin)

Unsuitable Soils

Riparian Management

Area

Slope > 72%

Other Ownership

Old Growth Habitat LUD

Recreation River LUD

Scenic River LUD

State Highway

National Forest System Road - Open

National Forest System Road - Stored

Non-National Forest 

System Road

Proposed Reconstructed Road

Proposed System Road 

(reopened Decommissioned)

Proposed Temporary Road 

(reopened Decommissioned)

Proposed System Road

Proposed Temporary

Road

Young Growth

Systematic Strip Thin

Uniform Crown Thin

Old Growth

Helicopter

Shovel or Cable

Partial Cut

Class 1 Stream

Class 2 Stream

Class 3 Stream

Class 4 Stream

Lake

100’ Contour

Eagle Nest Buffer

Legacy

Visual Buffer

Deferred (within

Original Unit

Reconnaissance

Area)

581

R:\projects_2010\BigThorneEIS\maps\Unitcards\ROD_YG.mxd 3 June 2013

RR

SR

Young Growth

Appendix 1 - Unit Cards - 723 Appendix 1
Unit 

Number: 567

Alternatives: ROD Total Unit 11.9

Acres: 

Prescription: Crown Thinning

VCU 

Number: 581 

Yarding System:

Shovel

Net Harvest

Volume 70

(MBF): 

LUD: Modified Landscape

Summary of Concerns, Responses, BMPs and Mitigation

SILVICULTURE: 

Existing Conditions: This unit lies entirely within Stand #5810200504. The stand origination date is 1969. 

Approximately 87% of the stand area was pre-commercially thinned in 1989. The site potential appears to range 

from medium to high. This unit is in a successional stage of stem exclusion. The unit lies within the Deer Winter 

Range landscape zone.

Silvicultural Objective/Desired Condition (Deer Winter Range):

The management goal of young-growth treatment in this landscape zone is to improve growth, productivity, and 

forest health, while managing for a sustained yield, even flow of an industrial wood supply and improving deer 

winter range conditions in treated stands for the remainder of the rotation.

Silvicultural Prescription: Intermediate Treatment Crown Thinning

Apply crown thinning at approximately stand age 50. Crown thinning should retain at least 50% of the existing 

pretreatment stand basal area at that time. Retain trees in a generally uniform pattern. Skips or thickets may be left 

where logging system difficulties occur, in portions of settings where windthrow risk is expected to be unacceptable 

after thinning like along exposed stand edges or knobs, and in any areas where wildlife dens or nests are found. 

Gaps may occur where cable corridors come together near landings or other areas where extra room is needed to 

facilitate yarding or meet specific wildlife objectives.

The treatments being proposed are based on the analysis of current data for this stand projected forward in time 

using growth modeling. Marking guidelines covering the specifics of the treatment, such as species to favor for 

retention will be developed at the time of treatment.

TIMBER/YARDING: Shovel yarding to NFS road 3000325.

ENGINEERING/ROADS: This unit is accessed by reconstruction of existing NFS road 3000325, totaling 1,600 

feet. See corresponding road card for detailed information.

BOTANY: No Concerns

INVASIVE SPECIES: No Concerns

FISHERIES: Streams are tributaries to Luck Creek and Luck Lake. 

Stream#: 1 Class: I, II, III Flagging: B/W, O/W C-Type: MMS, HCO, HCM

Concerns: none

Buffer (RMA): Class I for MMS greater of 120 feet, flood plain, riparian vegetation or soils, or riparian associated 

wetland fens. Class II for HCO greater of 100 feet or to the top of the side-slope break. Class III for HCM to the top 

of the side-slope break.

Alternatives: ROD Buffer (RAW): no review needed Protection: Category A and B

Stream#: 1.1R Class: II, IV Flagging: B/W, G/W C-Type: MMO, HCO Concerns: none

Buffer (RMA): Class I for MMO greater of 120 feet, flood plain, riparian vegetation or soils, or riparian associated 

wetland fens. Class II for HCO greater of 100 feet or to the top of the side-slope break. 

Alternatives: ROD Buffer (RAW): no review needed Protection: Category A and C

Stream#: 2 Class: II, IV Flagging: B/W, G/W C-Type: HCO Concerns: none

Buffer (RMA): Class II for HCO greater of 100 feet or to the top of the side-slope break. 

Alternatives: ROD Buffer (RAW): no review needed Protection: Category A and C

Stream#: 3 Class: II, IV Flagging: B/W, G/W C-Type: HCO Concerns: none

Buffer (RMA): Class II for HCO greater of 100 feet or to the top of the side-slope break. 

Alternatives: ROD Buffer (RAW): no review needed Protection: Category A and C

Stream#: 5 Class: I, II Flagging: B/W C-Type: AFH, HCD Concerns: none

Buffer (RMA): Class I for AFH greater of 140 feet or active portion of the alluvial fan. Class II for HCD greater of 

100 feet or to the top of the side-slope break. 

Alternatives: ROD Buffer (RAW): no review needed Protection: Category A 

Stream#: 5.2L Class: III Flagging: O/W C-Type: HCD Concerns: none

724 - Big Thorne Project Record of Decision Appendix 1
Buffer (RMA): Class III for HCD to the top of the side-slope break.

Alternatives: ROD Buffer (RAW): no review needed Protection: Category B

All other streams in unit: Class IV Flagging: G/W C-Type: HC or MM 

Concerns: none Buffer (RMA): none Protection: Category C

GEOLOGY/KARST: No Concerns

HERITAGE RESOURCES: This unit was investigated per the third amended interagency Programmatic Agreement 

(PA) for historic properties. As specified by the PA, any potential adverse effect on historic properties (if any) was 

mitigated and portions of the Area of Potential Effect will be monitored by a qualified heritage specialist during 

and/or after actual ground disturbance.

SCENERY: Unit consists of about 3 acres of Low SIO and 13 acres of Very Low SIO, and is prescribed for uniform 

thinning. No concerns.

RECREATION: No Concerns

SOILS/WETLANDS: 

It is estimated that slopes range from less than 10% to about 40%. No wetlands have been mapped in the unit. The 

soils and wetlands are suitable for shovel yarding. Follow shovel yarding guidelines outlined in the introductions to 

unit cards (R10 BMP 13.9 and National Core BMPs Plan-2, Veg-2, and Veg-4). Partial harvest with ground-based 

removal will meet soil quality standards.

WILDLIFE: 

Commercial thinning will enhance wildlife habitat near Luck Lake by improving forage availability and removing 

the stand for the stem exclusion phase for the duration of rotation (until it is harvested again). A road would be 

constructed to access the unit.

Appendix 1 - Unit Cards - 725 Appendix 1
3000310

3030110

3000305

3000325

3000310

3000320

3000000

3000325

3000310

4.1R

5

2

1

5.2 L

1

3.1L

2

3

1

4

4

2.1 R

5.30 R

3

1969

1969

2006

2006

1969

1969

1969

1969

2006

1969

1969

1996

566

567

565

190

A

A

B

B

C

C

D

D

E

E

F

F

G

G

H

H

I

I

J

J

10 10

9 9

8 8

7 7

6 6

5 5

4 4

3 3

2 2

1 1

Unit Number 567 ROD VCU: 

0 500

Feet

Past Harvest

(Year Origin)

Unsuitable Soils

Riparian Management

Area

Slope > 72%

Other Ownership

Old Growth Habitat LUD

Recreation River LUD

Scenic River LUD

State Highway

National Forest System Road - Open

National Forest System Road - Stored

Non-National Forest 

System Road

Proposed Reconstructed Road

Proposed System Road 

(reopened Decommissioned)

Proposed Temporary Road 

(reopened Decommissioned)

Proposed System Road

Proposed Temporary

Road

Young Growth

Systematic Strip Thin

Uniform Crown Thin

Old Growth

Helicopter

Shovel or Cable

Partial Cut

Class 1 Stream

Class 2 Stream

Class 3 Stream

Class 4 Stream

Lake

100’ Contour

Eagle Nest Buffer

Legacy

Visual Buffer

Deferred (within

Original Unit

Reconnaissance

Area)

581

R:\projects_2010\BigThorneEIS\maps\Unitcards\ROD_YG.mxd 3 June 2013

RR

SR

Young Growth

726 - Big Thorne Project Record of Decision Appendix 1
Unit 

Number: 568

Alternatives: ROD Total Unit 2.0

Acres: 

Prescription: Crown and 

Systematic Thinning

VCU 

Number: 581 

Yarding System:

Shovel

Net Harvest

Volume 12

(MBF): 

LUD: Modified Landscape

Summary of Concerns, Responses, BMPs and Mitigation

SILVICULTURE: 

Existing Conditions: Approximately 2 acres of the unit lies within Stand #5810400501. The stand origination date is 

1969. Approximately 45% of the stand area was pre-commercially thinned in 1985. Approximately 2 acres of the 

unit lies within Stand #5810300501. The stand origination date is 1968. This stand has not been pre-commercially 

thinned. The site potential appears to range from medium to high. The unit is in a successional stage of stem 

exclusion. This unit lies within the Deer Winter Range landscape zone.

Silvicultural Objective/Desired Condition (Deer Winter Range):

The management goal of young-growth treatment in this landscape zone is to improve growth, productivity, and 

forest health, while managing for a sustained yield, even flow of an industrial wood supply and improving deer 

winter range conditions in treated stands for the remainder of the rotation.

Silvicultural Prescription: Intermediate Treatment Crown Thinning

Apply crown thinning at approximately stand age 50. Crown thinning should retain at least 50% of the existing 

pretreatment stand basal area at that time. Retain trees in a generally uniform pattern. Skips or thickets may be left 

where logging system difficulties occur, in portions of settings where windthrow risk is expected to be unacceptable 

after thinning like along exposed stand edges or knobs, and in any areas where wildlife dens or nests are found. 

Gaps may occur where cable corridors come together near landings or other areas where extra room is needed to 

facilitate yarding or meet specific wildlife objectives.

Silvicultural Prescription: Systematic Thinning

Apply systematic thinning strips in portions of the unit unsuitable for uniform thinning. Systematic thinning should 

be applied primarily in downhill settings where full suspension cannot be achieved or other areas where uniform 

thinning will result in unacceptable levels of residual tree damage or otherwise is operationally infeasible. 

Systematic thinning should remove all trees within corridors 20 to 60 feet wide depending on operational feasibility, 

visual concerns and /or windthrow potential. Maintain a 60-120 foot distance between cut corridors resulting in at 

least a 50% basal area retention. Where visuals are of concern, cut corridors should be kept to approximately 20 feet 

in width pending scenery direction. Although parallel strips are likely to be most common, there are options for fan 

shapes, depending on landing/road locations.

The treatments being proposed are based on the analysis of current data for this stand projected forward in time 

using growth modeling. Marking guidelines covering the specifics of the treatment, such as species to favor for 

retention will be developed at the time of treatment.

TIMBER/YARDING: Shovel yarding to NFS Road 3030000.

ENGINEERING/ROADS: No proposed road construction or reconstruction.

BOTANY: No Concerns

INVASIVE SPECIES: No Concerns

FISHERIES: Streams are tributaries to Luck Lake. 

Stream#: 4 Class: I, II Flagging: B/W C-Type: MMS, HCO Concerns: none

Buffer (RMA): Class I for MMS greater of 120 feet, flood plain, riparian vegetation or soils, or riparian associated 

wetland fens. Class II for HCO greater of 100 feet or to the top of the side-slope break.

Alternatives: ROD Buffer (RAW): no review needed Protection: Category A

Stream#: 4.1R Class: II Flagging: B/W C-Type: MMO, MMS Concerns: none

Buffer (RMA): Class II for MMO and MMS greater of 120 feet, flood plain, riparian vegetation or soils, or riparian 

associated wetland fens. 

Alternatives: ROD Buffer (RAW): no review needed Protection: Category A

GEOLOGY/KARST: No Concerns

HERITAGE RESOURCES: This unit was investigated per the third amended interagency Programmatic Agreement 

(PA) for historic properties. As specified by the PA, any potential adverse effect on historic properties (if any) was 

mitigated and portions of the Area of Potential Effect will be monitored by a qualified heritage specialist during 

and/or after actual ground disturbance.

SCENERY: Unit is mapped as Moderate SIO, but is only 4 acres and is uniform thinning. No concerns.

RECREATION: No Concerns

Appendix 1 - Unit Cards - 727 Appendix 1
SOILS/WETLANDS: 

Slopes range from less than 10% to about 40%. There are approximately 2 acres of forested wetland in the western 

half of the southern polygon and less than 1/4 acre of forested wetland/ emergent sedge complex in the unit (R10 

BMP 12.5 and National Core BMPs AqEco-2 and AqEco-4). The soils and wetlands are suitable for shovel yarding. 

Follow shovel yarding guidelines outlined in the introductions to unit cards (R10 BMP 13.9 and National Core 

BMPs Plan-2, Veg-2, and Veg-4). Partial harvest with ground-based removal will meet soil quality standards.

WILDLIFE: 

Commercial thinning will enhance wildlife habitat near Luck Lake by improving forage availability and removing 

the stand for the stem exclusion phase for the duration of rotation (until it is harvested again).

728 - Big Thorne Project Record of Decision Appendix 1
3000329

3000000

3000320

3030000

3

1

1

2

2

2

3

4

1

4.1 R

1

5

2

2

4.1R

1968

1968

1969

1969

1969

1969

2005 1969

1968

1987 1971

1969 1973

200

200

568

570

569

A

A

B

B

C

C

D

D

E

E

F

F

G

G

H

H

I

I

J

J

10 10

9 9

8 8

7 7

6 6

5 5

4 4

3 3

2 2

1 1

Unit Number 568 ROD VCU: 

0 500

Feet

Past Harvest

(Year Origin)

Unsuitable Soils

Riparian Management

Area

Slope > 72%

Other Ownership

Old Growth Habitat LUD

Recreation River LUD

Scenic River LUD

State Highway

National Forest System Road - Open

National Forest System Road - Stored

Non-National Forest 

System Road

Proposed Reconstructed Road

Proposed System Road 

(reopened Decommissioned)

Proposed Temporary Road 

(reopened Decommissioned)

Proposed System Road

Proposed Temporary

Road

Young Growth

Systematic Strip Thin

Uniform Crown Thin

Old Growth

Helicopter

Shovel or Cable

Partial Cut

Class 1 Stream

Class 2 Stream

Class 3 Stream

Class 4 Stream

Lake

100’ Contour

Eagle Nest Buffer

Legacy

Visual Buffer

Deferred (within

Original Unit

Reconnaissance

Area)

581

R:\projects_2010\BigThorneEIS\maps\Unitcards\ROD_YG.mxd 3 June 2013

RR

SR

Young Growth

Appendix 1 - Unit Cards - 729 Appendix 1
Unit 

Number: 569

Alternatives: ROD Total Unit 21.9

Acres: 

Prescription: Systematic and 

Crown Thinning

VCU 

Number: 581 

Yarding System:

Cable, Shovel

Net Harvest

Volume 142

(MBF): 

LUD: Modified Landscape

Summary of Concerns, Responses, BMPs and Mitigation

SILVICULTURE: 

Existing Conditions: The majority of this unit lies within Stand #5810100511. The stand origination date is 1968.

Approximately 95% of the stand area was pre-commercially thinned in 1987. Approximately 8 acres of the unit lies 

within Stand #5810100512. The stand origination date is 1968. This stand has had approximately 92% of the stand 

area precommercially thinned, which was completed in 1987. Approximately 1 acre of the unit lies within Stand 

#5810100513. The stand origination date is 1969. This stand has not been pre-commercially thinned. The site 

potential appears to range from medium to high. The unit is in a successional stage of stem exclusion.

Silvicultural Objective/Desired Condition (Deer Winter Range):

The management goal of young-growth treatment in this landscape zone is to improve growth, productivity, and 

forest health, while managing for a sustained yield, even flow of an industrial wood supply and improving deer 

winter range conditions in treated stands for the remainder of the rotation.

Silvicultural Prescription: Intermediate Treatment Crown Thinning

Apply crown thinning at approximately stand age 50. Crown thinning should retain at least 50% of the existing 

pretreatment stand basal area at that time. Retain trees in a generally uniform pattern. Skips or thickets may be left 

where logging system difficulties occur, in portions of settings where windthrow risk is expected to be unacceptable

after thinning like along exposed stand edges or knobs, and in any areas where wildlife dens or nests are found. 

Gaps may occur where cable corridors come together near landings or other areas where extra room is needed to 

facilitate yarding or meet specific wildlife objectives.

Silvicultural Prescription: Systematic Thinning

Apply systematic thinning strips in portions of the unit unsuitable for uniform thinning. Systematic thinning should 

be applied primarily in downhill settings where full suspension cannot be achieved or other areas where uniform 

thinning will result in unacceptable levels of residual tree damage or otherwise is operationally infeasible. 

Systematic thinning should remove all trees within corridors 20 to 60 feet wide depending on operational feasibility, 

visual concerns and /or windthrow potential. Maintain a 60-120 foot distance between cut corridors resulting in at 

least a 50% basal area retention. Where visuals are of concern, cut corridors should be kept to approximately 20 feet 

in width pending scenery direction. Although parallel strips are likely to be most common, there are options for fan 

shapes, depending on landing/road locations.

The treatments being proposed are based on the analysis of current data for this stand projected forward in time 

using growth modeling. Marking guidelines covering the specifics of the treatment, such as species to favor for 

retention will be developed at the time of treatment.

TIMBER/YARDING: Shovel and cable yarding to NFS road 3030000.

ENGINEERING/ROADS: No proposed road construction or reconstruction.

BOTANY: No Concerns

INVASIVE SPECIES: No Concerns

FISHERIES: Streams are tributaries to Luck Lake. 

Stream#: 1 Class: I, IV Flagging: B/W, G/W C-Type: HCO Concerns: none

Buffer (RMA): Class II for HCO greater of 100 feet or to the top of the side-slope break. 

Alternatives: ROD Buffer (RAW): no review needed Protection: Category A and C 

Stream#: 2 Class: II Flagging: B/W C-Type: HCO Concerns: none

Buffer (RMA): Class II for HCO greater of 100 feet or to the top of the side-slope break. 

Alternatives: ROD Buffer (RAW): no review needed Protection: Category A 

Stream#: 3 Class: I, II Flagging: B/W C-Type: FPM, AFM, AFH, HCV Concerns: none

Buffer (RMA): Class I for FPM greater of 130 feet, flood plain, riparian vegetation or soils, or riparian associated 

wetland fens. Class I for AFM and AFH greater of 140 feet or active portion of the alluvial fan. Class II for HCV 

greater of 100 feet or to the top of the side-slope break.

Alternatives: ROD Buffer (RAW): no review needed Protection: Category A

GEOLOGY/KARST: No Concerns

HERITAGE RESOURCES: This unit was investigated per the third amended interagency Programmatic Agreement 

730 - Big Thorne Project Record of Decision Appendix 1
(PA) for historic properties. As specified by the PA, any potential adverse effect on historic properties (if any) was 

mitigated and portions of the Area of Potential Effect will be monitored by a qualified heritage specialist during 

and/or after actual ground disturbance.

SCENERY: About 24 acres with Moderate SIO and 1 acre with Low SIO; about 9 acres of unit are prescribed for 

systematic thinning. Implement narrow thinning corridors in systematic thinning settings to minimize visibility 

from 3030 Road.

RECREATION: No Concerns

SOILS/WETLANDS: 

It is estimated that slopes range from about 15% to about 60%. There is less than 1/4 acre of forested wetland near 

the western edge of the unit boundary (BMP 12.5). (R10 BMP 12.5 and National Core BMPs AqEco-2 and AqEco4). The soils and wetlands are suitable for a minimum of partial suspension cable yarding or shovel yarding and 

should follow R10 BMPs 12.5, 13.2 and 13.9 and National Core BMPs Plan-2, Veg-2, Veg-4, Veg-5, and Veg-6. 

Follow shovel yarding guidelines outlined in the introductions to unit cards (R10 BMP 13.9 and National Core Veg4). Partial harvest with ground-based removal and partial suspension thinning will meet soil quality standards.

WILDLIFE: 

Commercial thinning will enhance wildlife habitat near Luck Lake by improving forage availability and removing 

the stand for the stem exclusion phase for the duration of rotation (until it is harvested again).

Appendix 1 - Unit Cards - 731 Appendix 1
3030000

3000329

3000000

17

4.1R

5

19

19

20

19.1L

1

1

2

2

20.1L

1

4

4.1 R

1

2

18

2

1

3

2006

1968

1968

2006

1969

1969

1969

1969

1969

1992

2005 1968

1987

1971

1969

1973

201

200

568

570

569

A

A

B

B

C

C

D

D

E

E

F

F

G

G

H

H

I

I

J

J

10 10

9 9

8 8

7 7

6 6

5 5

4 4

3 3

2 2

1 1

Unit Number 569 ROD VCU: 

0 500

Feet

Past Harvest

(Year Origin)

Unsuitable Soils

Riparian Management

Area

Slope > 72%

Other Ownership

Old Growth Habitat LUD

Recreation River LUD

Scenic River LUD

State Highway

National Forest System Road - Open

National Forest System Road - Stored

Non-National Forest 

System Road

Proposed Reconstructed Road

Proposed System Road 

(reopened Decommissioned)

Proposed Temporary Road 

(reopened Decommissioned)

Proposed System Road

Proposed Temporary

Road

Young Growth

Systematic Strip Thin

Uniform Crown Thin

Old Growth

Helicopter

Shovel or Cable

Partial Cut

Class 1 Stream

Class 2 Stream

Class 3 Stream

Class 4 Stream

Lake

100’ Contour

Eagle Nest Buffer

Legacy

Visual Buffer

Deferred (within

Original Unit

Reconnaissance

Area)

581

R:\projects_2010\BigThorneEIS\maps\Unitcards\ROD_YG.mxd 3 June 2013

RR

SR

Young Growth

732 - Big Thorne Project Record of Decision Appendix 1
Unit 

Number: 570

Alternatives: ROD Total Unit 139.2

Acres: 

Prescription: Systematic and 

Crown Thinning

VCU 

Number: 581 

Yarding System:

Cable, Shovel

Net Harvest

Volume 894

(MBF): 

LUD: Modified Landscape

Summary of Concerns, Responses, BMPs and Mitigation

SILVICULTURE: 

Existing Conditions: Approximately 31 acres of the unit lies within Stand #5810100510. The stand origination date 

is 1968. This stand was entirely pre-commercially thinned in 1987. Approximately 36 acres of the unit lies within 

Stand #5810100521. The stand origination date is 1968. This stand was entirely pre-commercially thinned in 1987. 

Approximately 11 acres of the unit lies within Stand #5810100512. The stand origination date is 1968. 

Approximately 92% of the stand was pre-commercially thinned in 1987. Approximately 76 acres of the unit lies 

within Stand # 5810100511. The stand origination date is 1968. Approximately 95% of the stand area was precommercially thinned in 1987. The site potential in the unit appears to range from medium to high. This unit is in a 

successional stage of stem exclusion. This unit lies within the Deer Winter Range landscape zone.

Silvicultural Objective/Desired Condition (Deer Winter Range):

The management goal of young-growth treatment in this landscape zone is to improve growth, productivity, and 

forest health, while managing for a sustained yield, even flow of an industrial wood supply and improving deer 

winter range conditions in treated stands for the remainder of the rotation.

Silvicultural Prescription: Intermediate Treatment Crown Thinning

Apply crown thinning at approximately stand age 50. Crown thinning should retain at least 50% of the existing 

pretreatment stand basal area at that time. Retain trees in a generally uniform pattern. Skips or thickets may be left 

where logging system difficulties occur, in portions of settings where windthrow risk is expected to be unacceptable 

after thinning like along exposed stand edges or knobs, and in any areas where wildlife dens or nests are found. 

Gaps may occur where cable corridors come together near landings or other areas where extra room is needed to 

facilitate yarding or meet specific wildlife objectives.

Silvicultural Prescription: Systematic Thinning

Apply systematic thinning strips in portions of the unit unsuitable for uniform thinning. Systematic thinning should 

be applied primarily in downhill settings where full suspension cannot be achieved or other areas where uniform 

thinning will result in unacceptable levels of residual tree damage or otherwise is operationally infeasible. 

Systematic thinning should remove all trees within corridors 20 to 60 feet wide depending on operational feasibility, 

visual concerns and /or windthrow potential. Maintain a 60-120 foot distance between cut corridors resulting in at 

least a 50% basal area retention. Where visuals are of concern, cut corridors should be kept to approximately 20 feet 

in width pending scenery direction. Although parallel strips are likely to be most common, there are options for fan 

shapes, depending on landing/road locations.

The treatments being proposed are based on the analysis of current data for this stand projected forward in time 

using growth modeling. Marking guidelines covering the specifics of the treatment, such as species to favor for 

retention will be developed at the time of treatment.

TIMBER/YARDING: Shovel setting yard to NFS road 3030000. Cable settings yard to NFS road 3030000 and 

proposed temporary roads.

ENGINEERING/ROADS: Unit is accessed by two proposed temporary roads, totaling 5800 feet, constructed over 

decommissioned road bed.

BOTANY: No Concerns

INVASIVE SPECIES: No Concerns

FISHERIES: Streams are tributaries to Luck Lake. Lake 1 is Luck Lake.

Stream#: Lake 1 Class: I Flagging: B/W C-Type: L Concerns: none

Buffer (RMA): Class I for Lake-A1 greater of 100 horizontal feet or to the extent of flood plain, riparian vegetation 

or soils, riparian associated wetland fens, or height of one site potential tree.

Alternatives: ROD Buffer (RAW): no review needed Protection: Category A

Stream#: 1 Class: I, II, III Flagging: B/W, O/W C-Type: AFM, HCM, HCD Concerns: none

Buffer (RMA): Class I for AFM greater of 140 feet or active portion of the alluvial fan. Class II for HCM greater of 

100 feet or to the top of the side-slope break. Class III for HCD to the top of the side-slope break.

Alternatives: ROD Buffer (RAW): no review needed Protection: Category A and B

Stream#: 2 Class: I, II, IV Flagging: B/W, G/W C-Type: MMO, HCO Concerns: none

Appendix 1 - Unit Cards - 733 Appendix 1
Buffer (RMA): Class I for MMO greater of 120 feet, flood plain, riparian vegetation or soils, or riparian associated 

wetland fens. Class I and II for HCO greater of 100 feet or to the top of the side-slope break. 

Alternatives: ROD Buffer (RAW): no review needed Protection: Category A and C 

Stream#: 2.1L Class: I, IV Flagging: B/W, G/W C-Type: HCO Concerns: none

Buffer (RMA): Class I for HCO greater of 100 or to the top of the side-slope break. 

Alternatives: ROD Buffer (RAW): no review needed Protection: Category A and C

Stream#: 3 Class: I, II, IV Flagging: B/W, GW C-Type: AFO, HCO Concerns: none

Buffer (RMA): Class I for AFO greater of 140 feet or active portion of the alluvial fan. Class II for HCO greater of 

100 feet or to the top of the side-slope break. 

Alternatives: ROD Buffer (RAW): no review needed Protection: Category A and C

Stream#: 4 Class: I, II, IV Flagging: B/W, O/W C-Type: HCO Concerns: none

Buffer (RMA): Class I and II for HCO greater of 100 feet or to the top of the side-slope break. 

Alternatives: ROD Buffer (RAW): no review needed Protection: Category A and C 

Stream#: 6 Class: I, III Flagging: B/W, O/W C-Type: AFM, HCM Concerns: none

Buffer (RMA): Class I for AFM greater of 140 feet or active portion of the alluvial fan. Class III for HCM to the top 

of the side-slope break.

Alternatives: ROD Buffer (RAW): no review needed Protection: Category A and B

Stream#: 7 Class: I, II, IV Flagging: B/W, G/W C-Type: AFO, HCO Concerns: none

Buffer (RMA): Class I for AFO greater of 140 feet or active portion of the alluvial fan. Class II for HCO greater of 

100 feet or to the top of the side-slope break. 

Alternatives: ROD Buffer (RAW): no review needed Protection: Category A and C 

Stream#: 8 Class: I, II, IV Flagging: B/W, G/W C-Type: HCO Concerns: none

Buffer (RMA): Class I and II for HCO greater of 100 feet or to the top of the side-slope break. 

Alternatives: ROD Buffer (RAW): no review needed Protection: Category A and C

Stream#: 9 Class: I, II, IV Flagging: B/W, G/W C-Type: HCO Concerns: none

Buffer (RMA): Class I and II for HCO greater of 100 feet or to the top of the side-slope break. 

Alternatives: ROD Buffer (RAW): no review needed Protection: Category A and C

Stream#: 10 Class: I, II, IV Flagging: B/W, G/W C-Type: HCO Concerns: none

Buffer (RMA): Class I and II for HCO greater of 100 feet or to the top of the side-slope break. 

Alternatives: ROD Buffer (RAW): no review needed Protection: Category A and C

Stream#: 12 Class: I, II, IV Flagging: B/W, G/W C-Type: HCO Concerns: none

Buffer (RMA): Class I and II for HCO greater of 100 feet or to the top of the side-slope break. 

Alternatives: ROD Buffer (RAW): no review needed Protection: Category A and C

Stream#: 14 Class: II, IV Flagging: B/W, G/W C-Type: HCO Concerns: none

Buffer (RMA): Class II for HCO greater of 100 feet or to the top of the side-slope break. 

Alternatives: ROD Buffer (RAW): no review needed Protection: Category A and C

Stream#: 15 Class: I, II, IV Flagging: B/W, G/W C-Type: HCO Concerns: none

Buffer (RMA): Class I and II for HCO greater of 100 feet or to the top of the side-slope break. 

Alternatives: ROD Buffer (RAW): no review needed Protection: Category A and C

Stream#: 17 Class: II, IV Flagging: B/W, G/W C-Type: HCO Concerns: none

Buffer (RMA): Class II for HCO greater of 100 feet or to the top of the side-slope break. 

Alternatives: ROD Buffer (RAW): no review needed Protection: Category A and C

Stream#: 17.1R Class: II, IV Flagging: B/W, G/W C-Type: HCO Concerns: none

Buffer (RMA): Class II for HCO greater of 100 feet or to the top of the side-slope break. 

Alternatives: ROD Buffer (RAW): no review needed Protection: Category A and C

Stream#: 19 Class: I, II, IV Flagging: B/W, GW C-Type: AFM, HCO Concerns: none

734 - Big Thorne Project Record of Decision Appendix 1
Buffer (RMA): Class I for AFM greater of 140 feet or active portion of the alluvial fan. Class II for HCO greater of 

100 feet or to the top of the side-slope break. 

Alternatives: ROD Buffer (RAW): no review needed Protection: Category A and C

Stream#: 20 Class: II, IV Flagging: B/W, G/W C-Type: HCO Concerns: none

Buffer (RMA): Class II for HCO greater of 100 feet or to the top of the side-slope break. 

Alternatives: ROD Buffer (RAW): no review needed Protection: Category A and C

Stream#: 20.1L Class: II Flagging: B/W C-Type: HCO Concerns: none

Buffer (RMA): Class II for HCO greater of 100 feet or to the top of the side-slope break. 

Alternatives: ROD Buffer (RAW): no review needed Protection: Category A 

All other streams in unit: Class IV Flagging: G/W C-Type: HC or MM 

Concerns: none Buffer (RMA): none Protection: Category C

Temporary roads (reopened decommissioned) for Unit 570: One Class III and thirteen class IV stream crossings. 

Crossings structures and locations will be approved by USFS, in consultation with fisheries biologist or hydrologist, 

prior to construction (BMP 14.17). During construction of temporary roads implement BMPs 12.17, 13.10, 13.11, 

13.16, 14.3, and 14.5.

GEOLOGY/KARST: No Concerns

HERITAGE RESOURCES: This unit was investigated per the third amended interagency Programmatic Agreement 

(PA) for historic properties. As specified by the PA, any potential adverse effect on historic properties (if any) was 

mitigated and portions of the Area of Potential Effect will be monitored by a qualified heritage specialist during 

and/or after actual ground disturbance.

SCENERY: About 106 acres with Moderate SIO and 48 acres with Low SIO; only about 14 acres of the Moderate 

SIO areas are prescribed for systematic thinning. Implement narrow thinning corridors in systematic thinning 

settings to minimize visibility from 3030 Road.

RECREATION: No Concerns

SOILS/WETLANDS: 

It is estimated that slopes range from less than 10% to about 80% in places. All slopes greater than 72% will be 

verified prior to implementation. About 1 acre has been disturbed by a mapped debris torrent. There are 

approximately 35 acres of forested wetland in the northwest quarter of the unit (R10 BMP 12.5 and National Core 

BMPs AqEco-2 and AqEco-4). The soils and wetlands are suitable for a minimum of partial suspension cable 

yarding or shovel yarding and should follow R10 BMPs 12.5, 13.2 and 13.9 and National Core BMPs Plan-2, Veg2, Veg-4, Veg-5, and Veg-6. Follow shovel yarding guidelines outlined in the introductions to unit cards (R10 BMP 

13.9 and National Core Veg-4). Partial harvest with ground-based removal and partial suspension thinning will meet 

soil quality standards. A decommissioned temporary road will be used for access, thus reducing soil disturbance.

WILDLIFE: 

Commercial thinning will enhance wildlife habitat near Luck Lake (low elevation, east-facing slopes) by improving 

forage availability and removing the stand for the stem exclusion phase for the duration of rotation (until it is 

harvested again). A road would be reopened to access the unit.

Appendix 1 - Unit Cards - 735 Appendix 1
3030000

7.1L

1 1

1

2

8.1L

6.1l

2

1

18

6

2 0.1 L

6.1R

17

17.1R

3

5

4

2.1L

19

20

15

7

2

19

8

9

19.1L

1

14

8

1 2

1 3

10

3

1968

1968

1968

1968

2006 1968

1995

2006

2010

569

570

197

A

A

B

B

C

C

D

D

E

E

F

F

G

G

H

H

I

I

J

J

10 10

9 9

8 8

7 7

6 6

5 5

4 4

3 3

2 2

1 1

Unit Number 570 ROD VCU: 

0 500

Feet

Past Harvest

(Year Origin)

Unsuitable Soils

Riparian Management

Area

Slope > 72%

Other Ownership

Old Growth Habitat LUD

Recreation River LUD

Scenic River LUD

State Highway

National Forest System Road - Open

National Forest System Road - Stored

Non-National Forest 

System Road

Proposed Reconstructed Road

Proposed System Road 

(reopened Decommissioned)

Proposed Temporary Road 

(reopened Decommissioned)

Proposed System Road

Proposed Temporary

Road

Young Growth

Systematic Strip Thin

Uniform Crown Thin

Old Growth

Helicopter

Shovel or Cable

Partial Cut

Class 1 Stream

Class 2 Stream

Class 3 Stream

Class 4 Stream

Lake

100’ Contour

Eagle Nest Buffer

Legacy

Visual Buffer

Deferred (within

Original Unit

Reconnaissance

Area)

581

R:\projects_2010\BigThorneEIS\maps\Unitcards\ROD_YG.mxd 3 June 2013

RR

SR

Young Growth

736 - Big Thorne Project Record of Decision Appendix 1
Unit 

Number: 571

Alternatives: ROD Total Unit 16.6

Acres: 

Prescription: Crown and 

Systematic Thinning

VCU 

Number: 581

Yarding System:

Cable, Shovel

Net Harvest

Volume 118

(MBF): 

LUD: Modified Landscape

Summary of Concerns, Responses, BMPs and Mitigation

SILVICULTURE: Existing Conditions: Approximately 10 acres of unit lies within Stand #5810100510. The stand 

origination date is 1968. This stand was entirely pre-commercially thinned in 1986. Approximately 5 acres of the 

unit lies within Stand #5810100508. The stand origination date is 1968. . This stand was entirely pre-commercially 

thinned in 1986. Approximately 5 acres of the unit lies within Stand #5810100507. The stand origination date is 

1969. This stand was entirely pre-commercially thinned in 1986.This stand was entirely pre-commercially thinned in 

1986.The site potential in this unit appears to range from medium to high. This unit is in a successional stage of stem 

exclusion.The unit lies within the Deer Winter Range landscape zone.

Silvicultural Objective/Desired Condition (Deer Winter Range):

The management goal of young-growth treatment in this landscape zone is to improve growth, productivity, and 

forest health,while managing for a sustained yield, even flow of an industrial wood supply and improving deer 

winter range conditions intreated stands for the remainder of the rotation.

Silvicultural Prescription: Intermediate Treatment Crown Thinning

Apply crown thinning at approximately stand age 50. Crown thinning should retain at least 50% of the existing 

pretreatment stand basal area at that time. Retain trees in a generally uniform pattern. Skips or thickets may be left 

where logging system difficulties occur, in portions of settings where windthrow risk is expected to be unacceptable 

after thinning like along exposed stand edges or knobs, and in any areas where wildlife dens or nests are found. 

Gaps may occur where cable corridors come together near landings or other areas where extra room is needed to 

facilitate yarding or meet specific wildlife objectives.

Silvicultural Prescription: Systematic Thinning

Apply systematic thinning strips in portions of the unit unsuitable for uniform thinning. Systematic thinning should 

be applied primarily in downhill settings where full suspension cannot be achieved or other areas where uniform 

thinning will result in unacceptable levels of residual tree damage or otherwise is operationally infeasible. 

Systematic thinning should remove all trees within corridors 20 to 60 feet wide depending on operational feasibility, 

visual concerns and /or windthrow potential. Maintain a 60-120 foot distance between cut corridors resulting in at 

least a 50% basal area retention. Where visuals are of concern, cut corridors should be kept to approximately 20 feet 

in width pending scenery direction. Although parallel strips are likely to be most common, there are options for fan 

shapes, depending on landing/road locations.

The treatments being proposed are based on the analysis of current data for this stand projected forward in time 

using growth modeling. Marking guidelines covering the specifics of the treatment, such as species to favor for 

retention will be developed at the time of treatment.

TIMBER/YARDING: Shovel and cable yarding to NFS road 3030000.

ENGINEERING/ROADS: No proposed road construction or reconstruction.

BOTANY: No Concerns

INVASIVE SPECIES: No Concerns

FISHERIES: Streams are tributaries to Luck Lake. Lake 1 is Luck Lake.

Stream#: Lake 1 Class: I Flagging: B/W C-Type: L Concerns: none 

Buffer (RMA): Class I for Lake-A1 greater of 100 horizontal feet or to the extent of flood plain, riparian vegetation 

or soils, riparian associated wetland fens, or height of one site potential tree.

Alternatives: ROD Buffer (RAW): no review needed Protection: Category A

Stream#: 10/1 Class: I, II Flagging: B/W C-Type: MMS, HCL, HCM 

Concerns: blowdown, erosion within incision

Buffer (RMA): Class I for MMS greater of 120 feet, flood plain, riparian vegetation or soils, or riparian associated 

wetland fens. Class I and II for HCL and HCM greater of 100 feet or to the top of the side-slope break.

Alternatives: ROD Buffer (RAW): no review needed Protection: Category A

Stream#: 2 Class: II, III Flagging: B/W, O/W C-Type: HCL, HCM

Concerns: blowdown, erosion within incision

Buffer (RMA): Class II for HCL greater of 100 feet or to the top of the side-slope break. Class III for HCM to the 

top of the side-slope break.

Appendix 1 - Unit Cards - 737 Appendix 1
Alternatives: ROD Buffer (RAW): no review needed Protection: Category A and B

Stream#: 2.1R Class: II, IV Flagging: B/W, G/W C-Type: HCO Concerns: none 

Buffer (RMA): Class II for HCO greater of 100 feet or to the top of the side-slope break. 

Alternatives: ROD Buffer (RAW): no review needed Protection: Category A and C 

Stream#: 3 Class: I, II, IV Flagging: B/W, G/W C-Type: MMO, HCO, HCM

Concerns: none

Buffer (RMA): Class I for MMO greater of 120 feet, flood plain, riparian vegetation or soils, or riparian associated 

wetland fens. Class II for HCO greater of 100 feet or to the top of the side-slope break.

Alternatives: ROD Buffer (RAW): no review needed Protection: Category A and C

Stream#: 3.1R Class: I, II Flagging: B/W C-Type: MMO, HCO Concerns: none

Buffer (RMA): Class I for MMO greater of 120 feet, flood plain, riparian vegetation or soils, or riparian associated 

wetland fens. Class II for HCO greater of 100 feet or to the top of the side-slope break.

Alternatives: ROD Buffer (RAW): no review needed Protection: Category A 

Stream#: 3.1R.1R Class: I Flagging: B/W C-Type: MMO Concerns: none

Buffer (RMA): Class I for MMO greater of 120 feet, flood plain, riparian vegetation or soils, or riparian associated 

wetland fens.

Alternatives: ROD Buffer (RAW): no review needed Protection: Category A 

Stream#: 4 Class: I, II, IV Flagging: B/W, G/W C-Type: HCO Concerns: none

Buffer (RMA): Class I and II for HCO greater of 100 feet or to the top of the side-slope break. 

Alternatives: ROD Buffer (RAW): no review needed Protection: Category A and C

Stream#: 1 Class: II Flagging: B/W C-Type: HCM Concerns: none

Buffer (RMA): Class II for HCM greater of 100 feet or to the top of the side-slope break. 

Alternatives: ROD Buffer (RAW): no review needed Protection: Category A

All other streams in unit: Class IV Flagging: G/W C-Type: HC or MM 

Concerns: none Buffer (RMA): none Protection: Category C

GEOLOGY/KARST: No Concerns

HERITAGE RESOURCES: This unit was investigated per the third amended interagency Programmatic Agreement 

(PA) for historic properties. As specified by the PA, any potential adverse effect on historic properties (if any) was 

mitigated and portions of the Area of Potential Effect will be monitored by a qualified heritage specialist during 

and/or after actual ground disturbance.

SCENERY: Unit is entirely in Moderate SIO; only about 10 acres are prescribed for systematic thinning. Implement 

narrow thinning corridors in systematic thinning settings to minimize visibility from 3030 Road.

RECREATION: No Concerns

SOILS/WETLANDS: Slopes range from less than 10% to about 40%. There are approximately 10 acres of forested 

wetland in the southern half of the unit (R10 BMP 12.5 and National Core BMPs AqEco-2 and AqEco-4). The soils 

and wetlands are suitable for a minimum of partial suspension cable yarding or shovel yarding and should follow 

R10 BMPs 12.5, 13.2 and 13.9 and National Core BMPs Plan-2, Veg-2, Veg-4, Veg-5, and Veg-6. Follow shovel 

yarding guidelines outlined in the introductions to unit cards (R10 BMP 13.9 and National Core Veg-4). Partial 

harvest with ground-based removal and partial suspension thinning will meet soil quality standards.

WILDLIFE: Commercial thinning will enhance wildlife habitat near Luck Lake (low elevation, east-facing slopes) 

by improving forage availability and removing the stand for the stem exclusion phase for the duration of rotation 

(until it is harvested again).

738 - Big Thorne Project Record of Decision Appendix 1
3030000

2

10.1R.2L

10.1R.1L

10

2

10

8

1.2L.1L

2

1

1

1.2L

1.3L

3.1R.1R

4

3.1R

4

2.1L

10.2R

1.3L

2.2R

1.1L.1R

4

1.3L.1L

1.1L

5

10.1R.2L

10.2R.1L

4

3

1.2L

3

1.2L.3R

10.2R.2L

10.1R.2L.1L

3

1.2L.1R

4.1R

10.1R

9

1.1L

10.1R

2.1R

10.2R 1989

1990

1969

2005

1968

1968

1968

194

197

571

570

192

193

A

A

B

B

C

C

D

D

E

E

F

F

G

G

H

H

I

I

J

J

10 10

9 9

8 8

7 7

6 6

5 5

4 4

3 3

2 2

1 1

Unit Number 571 ROD VCU: 

0 500

Feet

Past Harvest

(Year Origin)

Unsuitable Soils

Riparian Management

Area

Slope > 72%

Other Ownership

Old Growth Habitat LUD

Recreation River LUD

Scenic River LUD

State Highway

National Forest System Road - Open

National Forest System Road - Stored

Non-National Forest 

System Road

Proposed Reconstructed Road

Proposed System Road 

(reopened Decommissioned)

Proposed Temporary Road 

(reopened Decommissioned)

Proposed System Road

Proposed Temporary

Road

Young Growth

Systematic Strip Thin

Uniform Crown Thin

Old Growth

Helicopter

Shovel or Cable

Partial Cut

Class 1 Stream

Class 2 Stream

Class 3 Stream

Class 4 Stream

Lake

100’ Contour

Eagle Nest Buffer

Legacy

Visual Buffer

Deferred (within

Original Unit

Reconnaissance

Area)

581

R:\projects_2010\BigThorneEIS\maps\Unitcards\ROD_YG.mxd 3 June 2013

RR

SR

Young Growth

Appendix 1 - Unit Cards - 739 Appendix 1
Unit 

Number: 572

Alternatives: ROD Total Unit 23.0

Acres: 

Prescription: Crown Thinning

VCU 

Number: 581

Yarding System:

Shovel

Net Harvest

Volume 135

(MBF): 

LUD: Modified Landscape, Old 

Growth Habitat

Summary of Concerns, Responses, BMPs and Mitigation

SILVICULTURE: Existing Conditions: This unit lies entirely within Stand #5810100524. The stand origination date 

is 1969. This stand was entirely pre-commercially thinned in 1989. The site potential appears to range from medium 

to high. This unit is in a successional stage of stem exclusion.The majority of this unit lies within the Deer Winter 

Range landscape zone. 

Silvicultural Objective/Desired Condition (Old-Growth Habitat):

The management objectives of young-growth treatments in Landscape Zone B are to accelerate development of 

advanced seral stand structure in order to restore the ecological integrity of habitat. Characteristics needed for 

wildlife habitat vary with the forest type and site potential of each stand. Treatments are intended to improve 

habitats, corridors, and connectivity for eagles, goshawks, deer, marten, otter, bear, and other wildlife species 

associated with maritime-influenced habitat.

Silvicultural Objective/Desired Condition (Deer Winter Range):

The management goal of young-growth treatment in this landscape zone is to improve growth, productivity, and 

forest health, while managing for a sustained yield, even flow of an industrial wood supply and improving deer 

winter range conditions in treated stands for the remainder of the rotation.

Silvicultural Prescription: Intermediate Treatment Crown Thinning

Apply crown thinning at approximately stand age 50. Crown thinning should retain at least 50% of the existing 

pretreatment stand basal area at that time. Retain trees in a generally uniform pattern. Skips or thickets may be left 

where logging system difficulties occur, in portions of settings where windthrow risk is expected to be unacceptable 

after thinning like along exposed stand edges or knobs, and in any areas where wildlife dens or nests are found. 

Gaps may occur where cable corridors come together near landings or other areas where extra room is needed to 

facilitate yarding or meet specific wildlife objectives.

The treatments being proposed are based on the analysis of current data for this stand projected forward in time 

using growth modeling. Marking guidelines covering the specifics of the treatment, such as species to favor for 

retention will be developed at the time of treatment.

TIMBER/YARDING: The two western settings are isolated from roads preventing economic access and are no 

longer planned to be thinned. The map is incorrect.

Shovel yarding to the proposed temporary road and NFS roads 3030100 and 3030108.

ENGINEERING/ROADS: Unit is accessed by a proposed temporary road of 600 feet, constructed over 

decommissioned road bed. NFS road 3030108 will be reconstructed to access unit 465, and will also provide access 

to eastern portion of Unit, decreasing yarding distances. See road card for information on NFS road.

BOTANY: A small portion of one population of lesser round-leaved orchid, with three plants, is within the proposed 

harvest for this unit. The remaining portion of the population is within the indirect effects area. Another population

of lesser round-leaved orchid, with 207 plants, is within the indirect effects area for the furthest west setting of 

proposed thinning. To the extent feasible, minimize direct effects in the vicinity of known plants. 

INVASIVE SPECIES: No Concerns

FISHERIES: Streams are tributaries to Eagle Creek. Stream 1 is Eagle Creek.

Stream#: 1 Class: I Flagging: B/W C-Type: MML, FPL, PAM

Concerns: Yarding through RMA may be required.

Buffer (RMA): Class I - greater of 120 feet (MML),130 feet (FPL), or 100 feet (PAM), or to the extent of the flood 

plain, riparian vegetation or soils, or riparian associated wetland fens .

Alternatives: ROD Buffer (RAW): no review needed Protection: Category A

Stream#: 4 Class: I Flagging: B/W C-Type: AFM

Concerns: Yarding through RMA may be required.

Buffer (RMA): Class I for AFM greater of 140 feet or active portion of the alluvial fan. 

Alternatives: ROD Buffer (RAW): no review needed Protection: Category A

Stream#: 4.1R Class: I Flagging: B/W C-Type: PAO Concerns: none 

Buffer (RMA): Class I for PAO greater of 100 feet, flood plain, riparian vegetation or soils, or riparian associated 

wetland fens .

740 - Big Thorne Project Record of Decision Appendix 1
Alternatives: ROD Buffer (RAW): no review needed Protection: Category A

Stream#: 4.1R.1R Class: I Flagging: B/W C-Type: PAB Concerns: none 

Buffer (RMA): Class I for PAB greater of 100 feet, flood plain, riparian vegetation or soils, or riparian associated 

wetland fens .

Alternatives: ROD Buffer (RAW): no review needed Protection: Category A

Stream#: 4.2R Class: I Flagging: B/W C-Type: MMO Concerns: none

Buffer (RMA): Class I for MMO greater of 120 feet, flood plain, riparian vegetation or soils, or riparian associated 

wetland fens .

Alternatives: ROD Buffer (RAW): no review needed Protection: Category A

Stream#: 4.3R Class: I, II Flagging: B/W C-Type: MMS, HCO

Concerns: Yarding through RMA may be required.

Buffer (RMA): Class I for MMS greater of 120 feet, flood plain, riparian vegetation or soils, or riparian associated 

wetland fens . Class II for HCO greater of 100 feet or to the top of the side-slope break. 

Alternatives: ROD Buffer (RAW): no review needed Protection: Category A

All other streams in unit: Class: IV Flagging: G/W C-Type: HC or MM

Concerns: none Buffer (RMA): none Protection: Category C

Temporary roads (reopened decommissioned) for Unit 572: No known stream crossings. If any stream crossings 

are found, crossings structures and locations will be approved by USFS, in consultation with fisheries biologist or 

hydrologist, prior to construction (BMP 14.17). During construction of temporary roads implement BMPs 12.17, 

13.10, 13.11, 13.16, 14.3, and 14.5.

GEOLOGY/KARST: No Concerns

HERITAGE RESOURCES: This unit was investigated per the third amended interagency Programmatic Agreement 

(PA) for historic properties. As specified by the PA, any potential adverse effect on historic properties (if any) was 

mitigated and portions of the Area of Potential Effect will be monitored by a qualified heritage specialist during 

and/or after actual ground disturbance.

SCENERY: About 21 acres has a Moderate SIO and 10 acres has a Low SIO. The prescription is uniform thinning 

and the topography is relatively flat, so visual impacts are expected to be low.

RECREATION: No Concerns

SOILS/WETLANDS: Slopes are nearly flat to about 20%. There are approximately 4 acres of forested 

wetland/emergent sedge complex in the middle of the unit and 1 acres of emergent short sedge wetland in the north 

end of the unit (R10 BMP 12.5 and National Core BMPs AqEco-2 and AqEco-4). The soils and wetlands are suitable for shovel 

yarding. Follow shovel yarding guidelines outlined in the introductions to unit cards (R10 BMP 13.9 and National 

Core BMPs Plan-2, Veg-2, and Veg-4). Partial harvest with ground-based removal will meet soil quality standards.

A decommissioned temporary road will be used for access, thus reducing soil disturbance.

WILDLIFE: Commercial thinning will enhance wildlife habitat near Eagle Creek by improving forage availability 

and removing the stand for the stem exclusion phase for the duration of rotation (until it is harvested again), though 

a road would be reopened to access the unit.

Eagle nest located near east end of unit. Nest activity will be determined prior to implementation; timing restrictions 

may apply.

Appendix 1 - Unit Cards - 741 Appendix 1
3030100

3030000

3030200

3030110

3030105

3030108

3030108

3030100

4

4

1

4.1 R

7

1.5L

4.2R

7.1L.1L

7

2

4.3R

2

4.1R .1 R

5

1.1R.5 R

1.1R.4R

1R.7L.2R

1.1 R.1R

4.1L

.1

1 R.3R

4.1L

1 .1R.7 L

4

4.3AR

1.1R.7L.1L

1.6L

7.1L

3

1.1R.7L.3L

7.1L.2R

6

5.1L

5

1.1R.2L

1. 7L

1

7

4

3

1. 1R.7L.1L

1.1R

1.8L

1.1 R

7.1L

1969

1969

1969

1989

1969

1995

1974

470

572

574

575

576

191

192

469

A

A

B

B

C

C

D

D

E

E

F

F

G

G

H

H

I

I

J

J

10 10

9 9

8 8

7 7

6 6

5 5

4 4

3 3

2 2

1 1

Unit Number 572 ROD VCU: 

0 500

Feet

Past Harvest

(Year Origin)

Unsuitable Soils

Riparian Management

Area

Slope > 72%

Other Ownership

Old Growth Habitat LUD

Recreation River LUD

Scenic River LUD

State Highway

National Forest System Road - Open

National Forest System Road - Stored

Non-National Forest 

System Road

Proposed Reconstructed Road

Proposed System Road 

(reopened Decommissioned)

Proposed Temporary Road 

(reopened Decommissioned)

Proposed System Road

Proposed Temporary

Road

Young Growth

Systematic Strip Thin

Uniform Crown Thin

Old Growth

Helicopter

Shovel or Cable

Partial Cut

Class 1 Stream

Class 2 Stream

Class 3 Stream

Class 4 Stream

Lake

100’ Contour

Eagle Nest Buffer

Legacy

Visual Buffer

Deferred (within

Original Unit

Reconnaissance

Area)

581

R:\projects_2010\BigThorneEIS\maps\Unitcards\ROD_YG.mxd 3 June 2013

RR

SR

Young Growth

742 - Big Thorne Project Record of Decision Appendix 1
Unit 

Number: 574

Alternatives: ROD Total Unit 17.2

Acres: 

Prescription: Crown Thinning

VCU 

Number: 581

Yarding System:

Shovel

Net Harvest

Volume 101

(MBF): 

LUD: Modified Landscape

Summary of Concerns, Responses, BMPs and Mitigation

SILVICULTURE: 

Existing Conditions: This unit lies entirely within Stand #5810200501. The stand origination date is 1969. This 

stand was entirely pre-commercially thinned in 1989. The site potential appears to range from medium to high. This 

unit is in a successional stage of stem exclusion. The unit lies within the Deer Winter Range landscape zone.

Silvicultural Objective/Desired Condition (Deer Winter Range):

The management goal of young-growth treatment in this landscape zone is to improve growth, productivity, and 

forest health, while managing for a sustained yield, even flow of an industrial wood supply and improving deer 

winter range conditions in treated stands for the remainder of the rotation.

Silvicultural Prescription: Intermediate Treatment Crown Thinning

Apply crown thinning at approximately stand age 50. Crown thinning should retain at least 50% of the existing 

pretreatment stand basal area at that time. Retain trees in a generally uniform pattern. Skips or thickets may be left 

where logging system difficulties occur, in portions of settings where windthrow risk is expected to be unacceptable 

after thinning like along exposed stand edges or knobs, and in any areas where wildlife dens or nests are found. 

Gaps may occur where cable corridors come together near landings or other areas where extra room is needed to 

facilitate yarding or meet specific wildlife objectives.

The treatments being proposed are based on the analysis of current data for this stand projected forward in time 

using growth modeling. Marking guidelines covering the specifics of the treatment, such as species to favor for 

retention will be developed at the time of treatment.

TIMBER/YARDING: Shovel yarding to the proposed temporary road and NFS road 3030100.

ENGINEERING/ROADS: No road construction or reconstruction is required. Unit may utilize the proposed 

temporary road constructed to access Unit 575.

BOTANY: No Concerns

INVASIVE SPECIES: No Concerns

FISHERIES: Streams are tributaries to Eagle Creek. Stream 1 is Eagle Creek.

Stream#: 1 Class: I Flagging: B/W C-Type: MML, FPL Concerns: none

Buffer (RMA): Class I greater of 120 feet (for MML) and 130 feet (for FPL) or to the extent of the flood plain, 

riparian vegetation or soils, or riparian associated wetland fens. 

Alternatives: ROD Buffer (RAW): no review needed Protection: Category A

Stream#: 1.5L Class: I Flagging: B/W C-Type: MMS, AFM Concerns: none

Buffer (RMA): Class I for MMS greater of 120 feet, flood plain, riparian vegetation or soils, or riparian associated 

wetland fens. Class I for AFM greater of 140 feet or active portion of the alluvial fan.

Alternatives: ROD Buffer (RAW): no review needed Protection: Category A

Stream#: 1.6L Class: I Flagging: B/W C-Type: PAO Concerns: none

Buffer (RMA): Class I for PAO greater of 100 feet , flood plain, riparian vegetation or soils, or riparian associated 

wetland fens. 

Alternatives: ROD Buffer (RAW): no review needed Protection: Category A

Stream#: 1.7L Class: I Flagging: B/W C-Type: FPO Concerns: none

Buffer (RMA): Class I for FPO greater of 130 feet , flood plain, riparian vegetation or soils, or riparian associated 

wetland fens. 

Alternatives: ROD Buffer (RAW): no review needed Protection: Category A

Stream#: 1.8L Class: I Flagging: B/W C-Type: AFM Concerns: none

Buffer (RMA): Class I for AFM greater of 140 feet or active portion of the alluvial fan.

Alternatives: ROD Buffer (RAW): no review needed Protection: Category A

Temporary roads (reopened decommissioned) for Unit 574: No known stream crossings. Stream #: 1.6L This 

stream originates as a wet area with diffuse flow immediately downslope of the existing decommissioned temporary 

road and the road is in the upper extent of the stream’s riparian area. This temporary road continues to access Unit 

Appendix 1 - Unit Cards - 743 Appendix 1
575. If any stream crossings are found, crossings structures and locations will be approved by USFS, in consultation 

with fisheries biologist or hydrologist, prior to construction (BMP 14.17). During construction of temporary roads 

implement BMPs 12.17, 13.10, 13.11, 13.16, 14.3, and 14.5.

GEOLOGY/KARST: No Concerns

HERITAGE RESOURCES: This unit was investigated per the third amended interagency Programmatic Agreement 

(PA) for historic properties. As specified by the PA, any potential adverse effect on historic properties (if any) was 

mitigated and portions of the Area of Potential Effect will be monitored by a qualified heritage specialist during 

and/or after actual ground disturbance.

SCENERY: About 6 acres with Moderate SIO and 8 acres with Very Low SIO. The entire unit is prescribed for 

uniform thinning and topography is relatively flat to rolling so visibility from Luck Lake or Eagle Creek is unlikely.

RECREATION: No Concerns

SOILS/WETLANDS: Slopes are estimated to be less than 25%. No wetlands have been mapped in the unit. The 

soils and wetlands are suitable for shovel yarding. Follow shovel yarding guidelines outlined in the introductions to 

unit cards (R10 BMP 13.9 and National Core BMPs Plan-2, Veg-2, and Veg-4). Partial harvest with ground-based 

removal will meet soil quality standards.

WILDLIFE: Commercial thinning will enhance wildlife habitat near Eagle Creek by improving forage availability 

and removing the stand for the stem exclusion phase for the duration of rotation (until it is harvested again).

Eagle nest near northen end of unit. Nest activity will be determined prior to implementation; timing restrictions 

may apply.

744 - Big Thorne Project Record of Decision Appendix 1
3030100

3030113

3030105

3030112

3030110

3030108

3030100

3030108

1.5L

1.5L

4

1

4.3R

4.3R

1.5L.1L

1.8L.2R

4.1R.1 R

1.5L.2R

5

2.1R

4.1L

1.3L.1R

1.8L.1R

1.2L

1.4L

5.1L

1. 7L

1

2

3

1.3L

1.6L

4

4.2R

1

1.8L

4.1 R

1969

1969

1995

1969

1995

1969

574

575 576

572

A

A

B

B

C

C

D

D

E

E

F

F

G

G

H

H

I

I

J

J

10 10

9 9

8 8

7 7

6 6

5 5

4 4

3 3

2 2

1 1

Unit Number 574 ROD VCU: 

0 500

Feet

Past Harvest

(Year Origin)

Unsuitable Soils

Riparian Management

Area

Slope > 72%

Other Ownership

Old Growth Habitat LUD

Recreation River LUD

Scenic River LUD

State Highway

National Forest System Road - Open

National Forest System Road - Stored

Non-National Forest 

System Road

Proposed Reconstructed Road

Proposed System Road 

(reopened Decommissioned)

Proposed Temporary Road 

(reopened Decommissioned)

Proposed System Road

Proposed Temporary

Road

Young Growth

Systematic Strip Thin

Uniform Crown Thin

Old Growth

Helicopter

Shovel or Cable

Partial Cut

Class 1 Stream

Class 2 Stream

Class 3 Stream

Class 4 Stream

Lake

100’ Contour

Eagle Nest Buffer

Legacy

Visual Buffer

Deferred (within

Original Unit

Reconnaissance

Area)

581

R:\projects_2010\BigThorneEIS\maps\Unitcards\ROD_YG.mxd 3 June 2013

RR

SR

Young Growth

Appendix 1 - Unit Cards - 745 Appendix 1
Unit 

Number: 575

Alternatives: ROD Total Unit 7.5

Acres: 

Prescription: Crown and 

Systematic Thinning

VCU 

Number: 581

Yarding System:

Shovel, Cable

Net Harvest

Volume 56

(MBF): 

LUD: Modified Landscape

Summary of Concerns, Responses, BMPs and Mitigation

SILVICULTURE: 

Existing Conditions: The majority of this unit lies within Stand # 5810200502. The stand origination date is 1969.

Approximately 67% of the stand area has been pre-commercially thinned. This was primarily completed in 1989. 

Less than an acre of the unit lies within Stand #5810200501. The stand origination date is 1969. This stand was 

entirely precommercially thinned in 1989. The site potential in this unit appears to range from medium to high. This 

unit is in a successional stage of stem exclusion. The unit lies within the Deer Winter Range landscape zone.

Silvicultural Objective/Desired Condition (Deer Winter Range):

The management goal of young-growth treatment in this landscape zone is to improve growth, productivity, and 

forest health, while managing for a sustained yield, even flow of an industrial wood supply and improving deer 

winter range conditions in treated stands for the remainder of the rotation.

Silvicultural Prescription: Intermediate Treatment Crown Thinning

Apply crown thinning at approximately stand age 50. Crown thinning should retain at least 50% of the existing 

pretreatment stand basal area at that time. Retain trees in a generally uniform pattern. Skips or thickets may be left 

where logging system difficulties occur, in portions of settings where windthrow risk is expected to be unacceptable 

after thinning like along exposed stand edges or knobs, and in any areas where wildlife dens or nests are found. 

Gaps may occur where cable corridors come together near landings or other areas where extra room is needed to 

facilitate yarding or meet specific wildlife objectives.

Silvicultural Prescription: Systematic Thinning

Apply systematic thinning strips in portions of the unit unsuitable for uniform thinning. Systematic thinning should 

be applied primarily in downhill settings where full suspension cannot be achieved or other areas where uniform 

thinning will result in unacceptable levels of residual tree damage or otherwise is operationally infeasible. 

Systematic thinning should remove all trees within corridors 20 to 60 feet wide depending on operational feasibility, 

visual concerns and /or windthrow potential. Maintain a 60-120 foot distance between cut corridors resulting in at 

least a 50% basal area retention. Where visuals are of concern, cut corridors should be kept to approximately 20 feet 

in width pending scenery direction. Although parallel strips are likely to be most common, there are options for fan 

shapes, depending on landing/road locations.

The treatments being proposed are based on the analysis of current data for this stand projected forward in time 

using growth modeling. Marking guidelines covering the specifics of the treatment, such as species to favor for 

retention will be developed at the time of treatment.

TIMBER/YARDING: Shovel and cable yarding to the proposed temporary road.

ENGINEERING/ROADS: Unit is accessed by a proposed temporary road of 2,000 feet, constructed over 

decommissioned road bed.

BOTANY: No Concerns

INVASIVE SPECIES: No Concerns

FISHERIES: Streams are tributaries to Eagle Creek. 

Stream#: 1.8L Class: I Flagging: B/W C-Type: AFM, HCM Concerns: none 

Buffer (RMA): Class I for AFM greater of 140 feet or the active portion of the alluvial fan. Class II for HCM greater 

of 100 feet or to the top of the side-slope break. 

Alternatives: ROD Buffer (RAW): no review needed Protection: Category A

All other streams in unit: Class IV Flagging: G/W C-Type: HC or MM 

Concerns: none Buffer (RMA): none Protection: Category C

Temporary roads (reopened decommissioned) for Unit 575: one Class I stream crossing. Stream#: 1.8L Class: I 

C-Type: AFM. Coho salmon were identified near the proposed Class I crossings and will require a timing window 

of June 15 to September 1. Crossing structures and locations will be approved by USFS, in consultation with 

fisheries biologist or hydrologist, prior to construction (BMP 14.17). The Class I crossing will be designed to 

provide fish passage, using a log culvert or bridge, will be installed under current timing constrictions and 

concurrence from the State will be solicited prior to starting the work. During construction of temporary roads 

implement BMPs 12.17, 13.10, 13.11, 13.16, 14.3, and 14.5.

746 - Big Thorne Project Record of Decision Appendix 1
GEOLOGY/KARST: No Concerns

HERITAGE RESOURCES: This unit was investigated per the third amended interagency Programmatic Agreement 

(PA) for historic properties. As specified by the PA, any potential adverse effect on historic properties (if any) was 

mitigated and portions of the Area of Potential Effect will be monitored by a qualified heritage specialist during 

and/or after actual ground disturbance.

SCENERY: About 6 acres with Low SIO and less than 1 acre with Moderate SIO. Only a fraction of an acre of 

Moderate SIO is prescribed for systematic thinning. Implement narrow thinning corridors in systematic thinning 

settings to minimize visibility from Luck Lake or Eagle Creek.

RECREATION: No Concerns

SOILS/WETLANDS: Slopes are estimated to range from about 10% to about 50%. No wetlands have been mapped 

in the unit. The soils and wetlands are suitable for a minimum of partial suspension cable yarding or shovel yarding 

and should follow R10 BMPs 12.5, 13.2 and 13.9 and National Core BMPs Plan-2, Veg-2, Veg-4, Veg-5, and Veg6. Follow shovel yarding guidelines outlined in the introductions to unit cards (R10 BMP 13.9 and National Core 

Veg-4). Partial harvest with ground-based removal and partial suspension thinning will meet soil quality standards.

A decommissioned temporary road will be used for access, thus reducing soil disturbance.

WILDLIFE: Commercial thinning will enhance wildlife habitat near Luck Lake by improving forage availability 

and removing the stand for the stem exclusion phase for the duration of rotation (until it is harvested again).

Appendix 1 - Unit Cards - 747 Appendix 1
3030110

3030113

3030105

3030100

3030112

3030100

3030108

4.1 R

1.8L

1

1.5L

1.5L

4

3

1.5L.1L

1.8L.2R

1.5L.2R

1.8L.1R

1

4

1.7L

4.2 R

1.6L

4.3R

5

4.1R.1R

1969

1969

1969

1995

1969 1995

1969

574

575 576

572

A

A

B

B

C

C

D

D

E

E

F

F

G

G

H

H

I

I

J

J

10 10

9 9

8 8

7 7

6 6

5 5

4 4

3 3

2 2

1 1

Unit Number 575 ROD VCU: 

0 500

Feet

Past Harvest

(Year Origin)

Unsuitable Soils

Riparian Management

Area

Slope > 72%

Other Ownership

Old Growth Habitat LUD

Recreation River LUD

Scenic River LUD

State Highway

National Forest System Road - Open

National Forest System Road - Stored

Non-National Forest 

System Road

Proposed Reconstructed Road

Proposed System Road 

(reopened Decommissioned)

Proposed Temporary Road 

(reopened Decommissioned)

Proposed System Road

Proposed Temporary

Road

Young Growth

Systematic Strip Thin

Uniform Crown Thin

Old Growth

Helicopter

Shovel or Cable

Partial Cut

Class 1 Stream

Class 2 Stream

Class 3 Stream

Class 4 Stream

Lake

100’ Contour

Eagle Nest Buffer

Legacy

Visual Buffer

Deferred (within

Original Unit

Reconnaissance

Area)

581

R:\projects_2010\BigThorneEIS\maps\Unitcards\ROD_YG.mxd 3 June 2013

RR

SR

Young Growth

748 - Big Thorne Project Record of Decision Appendix 1
Unit 

Number: 576

Alternatives: ROD Total Unit 18.9

Acres: 

Prescription: Crown and 

Systematic Thinning

VCU 

Number: 581

Yarding System:

Shovel, Cable

Net Harvest

Volume 119

(MBF): 

LUD: Modified Landscape

Summary of Concerns, Responses, BMPs and Mitigation

SILVICULTURE: Existing Conditions: This unit lies entirely within Stand #5810200501. The stand origination date 

is 1969. This stand was entirely pre-commercially thinned in 1989. The site strata potential appears to range from 

medium to high. The unit is in a successional stage of stem exclusion. This unit lies within the Deer Winter Range 

landscape zone.

Silvicultural Objective/Desired Condition (Deer Winter Range):

The management goal of young-growth treatment in this landscape zone is to improve growth, productivity, and 

forest health, while managing for a sustained yield, even flow of an industrial wood supply and improving deer 

winter range conditions in treated stands for the remainder of the rotation.

Silvicultural Prescription: Intermediate Treatment Crown Thinning

Apply crown thinning at approximately stand age 50. Crown thinning should retain at least 50% of the existing 

pretreatment stand basal area at that time. Retain trees in a generally uniform pattern. Skips or thickets may be left 

where logging system difficulties occur, in portions of settings where windthrow risk is expected to be unacceptable 

after thinning like along exposed stand edges or knobs, and in any areas where wildlife dens or nests are found. 

Gaps may occur where cable corridors come together near landings or other areas where extra room is needed to 

facilitate yarding or meet specific wildlife objectives.

Silvicultural Prescription: Systematic Thinning

Apply systematic thinning strips in portions of the unit unsuitable for uniform thinning. Systematic thinning should 

be applied primarily in downhill settings where full suspension cannot be achieved or other areas where uniform 

thinning will result in unacceptable levels of residual tree damage or otherwise is operationally infeasible. 

Systematic thinning should remove all trees within corridors 20 to 60 feet wide depending on operational feasibility, 

visual concerns and /or windthrow potential. Maintain a 60-120 foot distance between cut corridors resulting in at 

least a 50% basal area retention. Where visuals are of concern, cut corridors should be kept to approximately 20 feet 

in width pending scenery direction. Although parallel strips are likely to be most common, there are options for fan 

shapes, depending on landing/road locations. 

The treatments being proposed are based on the analysis of current data for this stand projected forward in time 

using growth modeling. Marking guidelines covering the specifics of the treatment, such as species to favor for 

retention will be developed at the time of treatment.

TIMBER/YARDING: Shovel settings yard to the proposed temporary road and NFS road 3030110. Cable settings 

yard to the proposed temporary road.

ENGINEERING/ROADS: Unit is accessed by a proposed temporary road of 1,500 feet, constructed over 

decommissioned road bed.

BOTANY: No Concerns

INVASIVE SPECIES: No Concerns

FISHERIES: Streams are tributaries to Eagle Creek. 

Stream#: 1.5L Class: I, II Flagging: B/W C-Type: AFM, HCM Concerns: none 

Buffer (RMA): Class I for AFM greater of 140 feet or active portion of the alluvial fan. Class II for HCM greater of 

100 feet or to the top of the side-slope break. 

Alternatives: ROD Buffer (RAW): no review needed Protection: Category A 

Stream#: 1.8L Class: I, II Flagging: B/W C-Type: HCM Concerns: none 

Buffer (RMA): Class II for HCM greater of 100 feet or to the top of the side-slope break.

Alternatives: ROD Buffer (RAW): no review needed Protection: Category A

All other streams in unit: Class IV Flagging: G/W C-Type: HC or MM 

Concerns: none Buffer (RMA): none Protection: Category C

Temporary road (reopened decommissioned) for Unit 576: No known stream crossings. If any stream crossings are 

found, crossings structures and locations will be approved by USFS, in consultation with fisheries biologist or 

hydrologist, prior to construction (BMP 14.17). During construction of temporary roads implement BMPs 12.17, 

13.10, 13.11, 13.16, 14.3, and 14.5.

Appendix 1 - Unit Cards - 749 Appendix 1
GEOLOGY/KARST: No Concerns

HERITAGE RESOURCES: This unit was investigated per the third amended interagency Programmatic Agreement 

(PA) for historic properties. As specified by the PA, any potential adverse effect on historic properties (if any) was 

mitigated and portions of the Area of Potential Effect will be monitored by a qualified heritage specialist during 

and/or after actual ground disturbance.

SCENERY: Unit is almost entirely in Low SIO. Only about 5 acres are prescribed for systematic thinning. 

Implement narrow thinning corridors on these acres to minimize visibility from the Luck Lake and Eagle Creek 

area.

RECREATION: No Concerns

SOILS/WETLANDS: Slopes are estimated to range from about 15% to about 30%. There is approximately 1 acre of 

forested wetland in the southern tip of the unit (R10 BMP 12.5 and National Core BMPs AqEco-2 and AqEco-4). 

The soils and wetlands are suitable for a minimum of partial suspension cable yarding or shovel yarding and should 

follow R10 BMPs 12.5, 13.2 and 13.9 and National Core BMPs Plan-2, Veg-2, Veg-4, Veg-5, and Veg-6. Follow 

shovel yarding guidelines outlined in the introductions to unit cards (R10 BMP 13.9 and National Core Veg-4).

Partial harvest with ground-based removal and partial suspension thinning will meet soil quality standards. A 

decommissioned temporary road will be used for access, thus reducing soil disturbance.

WILDLIFE: Commercial thinning will enhance wildlife habitat near Luck Lake by improving forage availability 

and removing the stand for the stem exclusion phase for the duration of rotation (until it is harvested again).

750 - Big Thorne Project Record of Decision Appendix 1
3030112

3030112

3030113

3030100

3030110

3030100

3030108

1.6L

5

1.8L

1

1.5L

1.5L

1.5L.1L

1.8L.2R

3

1.5L.2R

1.8L.1R

1. 7L

1

4

4

4.1R.1R

1996 1969

1995

1995 1969

1969 1969

574

575 576

572

A

A

B

B

C

C

D

D

E

E

F

F

G

G

H

H

I

I

J

J

10 10

9 9

8 8

7 7

6 6

5 5

4 4

3 3

2 2

1 1

Unit Number 576 ROD VCU: 

0 500

Feet

Past Harvest

(Year Origin)

Unsuitable Soils

Riparian Management

Area

Slope > 72%

Other Ownership

Old Growth Habitat LUD

Recreation River LUD

Scenic River LUD

State Highway

National Forest System Road - Open

National Forest System Road - Stored

Non-National Forest 

System Road

Proposed Reconstructed Road

Proposed System Road 

(reopened Decommissioned)

Proposed Temporary Road 

(reopened Decommissioned)

Proposed System Road

Proposed Temporary

Road

Young Growth

Systematic Strip Thin

Uniform Crown Thin

Old Growth

Helicopter

Shovel or Cable

Partial Cut

Class 1 Stream

Class 2 Stream

Class 3 Stream

Class 4 Stream

Lake

100’ Contour

Eagle Nest Buffer

Legacy

Visual Buffer

Deferred (within

Original Unit

Reconnaissance

Area)

581

R:\projects_2010\BigThorneEIS\maps\Unitcards\ROD_YG.mxd 3 June 2013

RR

SR

Young Growth

Appendix 1 - Unit Cards - 751 Appendix 1
Unit 

Number: 577

Alternatives: ROD Total Unit 53.4

Acres: 

Prescription: Crown and 

Systematic Thinning

VCU 

Number: 581

Yarding System:

Cable, Shovel

Net Harvest

Volume 395

(MBF): 

LUD: Modified Landscape

Summary of Concerns, Responses, BMPs and Mitigation

SILVICULTURE: Existing Conditions: This unit lies primarily within Stand #5810200008. The stand origination 

date is 1969. This stand was entirely pre-commercially thinned in 1991. Approximately 17 acres of the unit lies 

within Stand #5810200007. The stand origination date is 1969. This stand was entirely pre-commercially thinned in 

1992. The site potential in this unit appears to range from medium to high. The unit is in a successional stage of 

stem exclusion. The unit lies within the Deer Winter Range landscape zone.

Silvicultural Objective/Desired Condition (Deer Winter Range):

The management goal of young-growth treatment in this landscape zone is to improve growth, productivity, and 

forest health, while managing for a sustained yield, even flow of an industrial wood supply and improving deer 

winter range conditions in treated stands for the remainder of the rotation.

Silvicultural Prescription: Intermediate Treatment Crown Thinning

Apply crown thinning at approximately stand age 50. Crown thinning should retain at least 50% of the existing 

pretreatment stand basal area at that time. Retain trees in a generally uniform pattern. Skips or thickets may be left 

where logging system difficulties occur, in portions of settings where windthrow risk is expected to be unacceptable 

after thinning like along exposed stand edges or knobs, and in any areas where wildlife dens or nests are found. 

Gaps may occur where cable corridors come together near landings or other areas where extra room is needed to 

facilitate yarding or meet specific wildlife objectives.

Silvicultural Prescription: Systematic Thinning

Apply systematic thinning strips in portions of the unit unsuitable for uniform thinning. Systematic thinning should 

be applied primarily in downhill settings where full suspension cannot be achieved or other areas where uniform 

thinning will result in unacceptable levels of residual tree damage or otherwise is operationally infeasible. 

Systematic thinning should remove all trees within corridors 20 to 60 feet wide depending on operational feasibility, 

visual concerns and /or windthrow potential. Maintain a 60-120 foot distance between cut corridors resulting in at 

least a 50% basal area retention. Where visuals are of concern, cut corridors should be kept to approximately 20 feet 

in width pending scenery direction. Although parallel strips are likely to be most common, there are options for fan 

shapes, depending on landing/road locations. 

The treatments being proposed are based on the analysis of current data for this stand projected forward in time 

using growth modeling. Marking guidelines covering the specifics of the treatment, such as species to favor for 

retention will be developed at the time of treatment.

TIMBER/YARDING: Cable settings yard to the southern proposed temporary road and NFS road 3030100. Shovel 

settings yard to the northern proposed temporary road and NFS 3030100.

ENGINEERING/ROADS: Unit is accessed by two proposed temporary roads, totaling 1,600 feet, constructed over 

decommissioned road bed and reconstruction of the NFS road 3030100, totaling 8,700 feet. See road card for 

information on NFS road.

BOTANY: No Concerns

INVASIVE SPECIES: No Concerns

FISHERIES: Streams drain to Clarence Strait.

Stream#: 3 Class: II Flagging: B/W C-Type: MMS Concerns: none

Buffer (RMA): Class II for MMS greater of 120 feet, flood plain, riparian vegetation or soils, or riparian associated 

wetland fens.

Alternatives: ROD Buffer (RAW): no review needed Protection: Category A

Stream#: 3.1R Class: II, IV Flagging: B/W, GW C-Type: HCO, PAM, PAB, MMO Concerns: none

Buffer (RMA): Class II for HCO greater of 100 feet or to the top of the side-slope break. Class II greater of 120 feet

(for MMO) and 100 feet (for PAM and PAB) or to the extent of the flood plain, riparian vegetation or soils, or 

riparian associated wetland fens. 

Alternatives: ROD Buffer (RAW): no review needed Protection: Category A and C

Stream#: 3.1R.2L Class: II, IV Flagging: B/W, G/W C-Type: HCO, PAS Concerns: none

Buffer (RMA): Class II for HCO greater of 100 feet or to the top of the side-slope break. 

Alternatives: ROD Buffer (RAW): no review needed Protection: Category A and C

752 - Big Thorne Project Record of Decision Appendix 1
All other streams in unit: Class: IV Flagging: G/W C-Type: HC or MM

Concerns: none Buffer (RMA): none Protection: Category C

Temporary road (reopened decommissioned) for Unit 577: One class IV stream crossing. The proposed road line on 

the ground is immediately upstream of the class break. If proposed road line is adjusted during implementation or if 

any additional stream crossings are found, crossings structures and locations will need to be approved by USFS, in 

consultation with fisheries biologist or hydrologist, prior to construction (BMP 14.17). During construction of 

temporary roads implement BMPs 12.17, 13.10, 13.11, 13.16, 14.3, and 14.5.

GEOLOGY/KARST: No Concerns

HERITAGE RESOURCES: This unit was investigated per the third amended interagency Programmatic Agreement 

(PA) for historic properties. As specified by the PA, any potential adverse effect on historic properties (if any) was 

mitigated and portions of the Area of Potential Effect will be monitored by a qualified heritage specialist during 

and/or after actual ground disturbance.

SCENERY: Unit has about 50 acres with Low SIO and 3 acres with Very Low SIO; about 42 acres of unit are 

prescribed for systematic thinning. Avoid wide thinning corridors in systematic thinning settings to reduce visibility 

from saltwater areas.

RECREATION: No Concerns

SOILS/WETLANDS: Slopes are estimated to range from about 15% to near 70%. All slopes greater than 72% will 

be verified prior to implementation. About 1acre is affected by mapped debris torrents initiated in 1988. There are 

approximately 10 acres of forested wetland along the southwest edge of the southern polygon (R10 BMP 12.5 and 

National Core BMPs AqEco-2 and AqEco-4). The soils and wetlands are suitable for a minimum of partial 

suspension cable yarding or shovel yarding and should follow R10 BMPs 12.5, 13.2 and 13.9 and National Core 

BMPs Plan-2, Veg-2, Veg-4, Veg-5, and Veg-6. Follow shovel yarding guidelines outlined in the introductions to 

unit cards (R10 BMP 13.9 and National Core Veg-4). Partial harvest with ground-based removal and partial 

suspension thinning will meet soil quality standards. A decommissioned temporary road will be used for access, thus 

reducing soil disturbance.

WILDLIFE: Commercial thinning will enhance wildlife habitat near Luck Lake by improving forage availability 

and removing the stand for the stem exclusion phase for the duration of rotation (until it is harvested again), though 

a road would be reconstructed to access the unit. Unit is not a priority on the landscape from a thinning perspective 

because it is surrounded by young-growth.

Appendix 1 - Unit Cards - 753 Appendix 1
3030112

3030100

3.2L

3.1R.1R. 1L 3.1R

3.1R.1R

3.1R.2L

1.2L

3

1

3.1 R

2

3

1

1996

1969

1969

1969

577

578

A

A

B

B

C

C

D

D

E

E

F

F

G

G

H

H

I

I

J

J

10 10

9 9

8 8

7 7

6 6

5 5

4 4

3 3

2 2

1 1

Unit Number 577 ROD VCU: 

0 500

Feet

Past Harvest

(Year Origin)

Unsuitable Soils

Riparian Management

Area

Slope > 72%

Other Ownership

Old Growth Habitat LUD

Recreation River LUD

Scenic River LUD

State Highway

National Forest System Road - Open

National Forest System Road - Stored

Non-National Forest 

System Road

Proposed Reconstructed Road

Proposed System Road 

(reopened Decommissioned)

Proposed Temporary Road 

(reopened Decommissioned)

Proposed System Road

Proposed Temporary

Road

Young Growth

Systematic Strip Thin

Uniform Crown Thin

Old Growth

Helicopter

Shovel or Cable

Partial Cut

Class 1 Stream

Class 2 Stream

Class 3 Stream

Class 4 Stream

Lake

100’ Contour

Eagle Nest Buffer

Legacy

Visual Buffer

Deferred (within

Original Unit

Reconnaissance

Area)

581

R:\projects_2010\BigThorneEIS\maps\Unitcards\ROD_YG.mxd 3 June 2013

RR

SR

Young Growth

754 - Big Thorne Project Record of Decision Appendix 1
Unit 

Number: 578

Alternatives: ROD Total Unit 33.8

Acres: 

Prescription: Crown and 

Systematic Thinning

VCU 

Number: 581

Yarding System:

Shovel, Cable

Net Harvest

Volume 230

(MBF): 

LUD: Modified Landscape

Summary of Concerns, Responses, BMPs and Mitigation

SILVICULTURE: Existing Conditions: This unit lies entirely within Stand #581020008. The stand origination date 

is 1969. This stand was entirely pre-commercially thinned in 1991. The site potential appears to range from medium 

to high. This unit is in a successional stage of stem exclusion. The unit lies primarily within the Deer Winter Range 

landscape zone. The remaining approximately 1 acre is in the Uplands/Mountain Slopes landscape zone.

Silvicultural Objective/Desired Condition (Deer Winter Range):

The management goal of young-growth treatment in this landscape zone is to improve growth, productivity, and 

forest health, while managing for a sustained yield, even flow of an industrial wood supply and improving deer 

winter range conditions in treated stands for the remainder of the rotation.

Silvicultural Objective/Desired Condition (Uplands/Mountain Slopes):

The management goal of young-growth treatments in this landscape zone is to manage for a sustained yield, even 

flow of an industrial wood supply, while meeting multiple resource objectives, wherever possible. Treatments 

should improve growth and productivity, improve forest health, and promote forest stand conditions that will 

provide a diverse array of marketable forest products.

Silvicultural Prescription: Intermediate Treatment Crown Thinning

Apply crown thinning at approximately stand age 50. Crown thinning should retain at least 50% of the existing 

pretreatment stand basal area at that time. Retain trees in a generally uniform pattern. Skips or thickets may be left 

where logging system difficulties occur, in portions of settings where windthrow risk is expected to be unacceptable 

after thinning like along exposed stand edges or knobs, and in any areas where wildlife dens or nests are found. 

Gaps may occur where cable corridors come together near landings or other areas where extra room is needed to 

facilitate yarding or meet specific wildlife objectives.

Silvicultural Prescription: Systematic Thinning

Apply systematic thinning strips in portions of the unit unsuitable for uniform thinning. Systematic thinning should 

be applied primarily in downhill settings where full suspension cannot be achieved or other areas where uniform 

thinning will result in unacceptable levels of residual tree damage or otherwise is operationally infeasible. 

Systematic thinning should remove all trees within corridors 20 to 60 feet wide depending on operational feasibility, 

visual concerns and /or windthrow potential. Maintain a 60-120 foot distance between cut corridors resulting in at 

least a 50% basal area retention. Where visuals are of concern, cut corridors should be kept to approximately 20 feet 

in width pending scenery direction. Although parallel strips are likely to be most common, there are options for fan 

shapes, depending on landing/road locations.

The treatments being proposed are based on the analysis of current data for this stand projected forward in time 

using growth modeling. Marking guidelines covering the specifics of the treatment, such as species to favor for 

retention will be developed at the time of treatment.

TIMBER/YARDING: Shovel and cable yarding to the proposed temporary road and NFS road 3030100. 

ENGINEERING/ROADS: Unit is accessed by a proposed temporary road of 800 feet and reconstruction of the NFS 

road 3030100, totaling 11,800 feet. The proposed temporary road will be constructed over decommissioned road 

bed. See road card for information on NFS road.

BOTANY: No Concerns

INVASIVE SPECIES: No Concerns

FISHERIES: All streams drain into Clarence Strait.

All streams in unit: Class: IV Flagging: G/W C-Type: HC 

Concerns: none Buffer (RMA): none Protection: Category C

Temporary road (reopened decommissioned) for Unit 578: No known stream crossings. 

If any stream crossings are found, crossings structures and locations will be approved by USFS, in consultation with 

fisheries biologist or hydrologist, prior to construction (BMP 14.17). During construction of temporary roads 

implement BMPs 12.17, 13.10, 13.11, 13.16, 14.3, and 14.5.

GEOLOGY/KARST: No Concerns

HERITAGE RESOURCES: This unit was investigated per the third amended interagency Programmatic Agreement 

(PA) for historic properties. As specified by the PA, any potential adverse effect on historic properties (if any) was 

Appendix 1 - Unit Cards - 755 Appendix 1
mitigated and portions of the Area of Potential Effect will be monitored by a qualified heritage specialist during 

and/or after actual ground disturbance.

SCENERY: Unit is entirely in an area with Low SIO; about 15 acres of unit are prescribed for systematic thinning. 

Avoid wide thinning corridors in systematic thinning settings to reduce visibility from saltwater areas.

RECREATION: No Concerns

SOILS/WETLANDS: Slopes are estimated to range from about 25% to about 65%. There is about 1/4 acre of 

forested wetland in the unit (R10 BMP 12.5 and National Core BMPs AqEco-2 and AqEco-4). The soils and 

wetlands are suitable for a minimum of partial suspension cable yarding or shovel yarding and should follow R10 

BMPs 12.5, 13.2 and 13.9 and National Core BMPs Plan-2, Veg-2, Veg-4, Veg-5, and Veg-6. Follow shovel 

yarding guidelines outlined in the introductions to unit cards (R10 BMP 13.9 and National Core Veg-4). Partial 

harvest with ground-based removal and partial suspension thinning will meet soil quality standards. A 

decommissioned temporary road will be used for access, thus reducing soil disturbance.

WILDLIFE: Commercial thinning will enhance wildlife habitat near Luck Lake by improving forage availability 

and removing the stand for the stem exclusion phase for the duration of rotation (until it is harvested again), though 

a road would be reconstructed to access the unit. Unit is not a priority on the landscape from a thinning perspective 

because it is surrounded by young-growth.

756 - Big Thorne Project Record of Decision Appendix 1
3030100

3030100

9.2R

11

12.1L

10

12

1

2

1996

1969

1969

207

577

578

A

A

B

B

C

C

D

D

E

E

F

F

G

G

H

H

I

I

J

J

10 10

9 9

8 8

7 7

6 6

5 5

4 4

3 3

2 2

1 1

Unit Number 578 ROD VCU: 

0 500

Feet

Past Harvest

(Year Origin)

Unsuitable Soils

Riparian Management

Area

Slope > 72%

Other Ownership

Old Growth Habitat LUD

Recreation River LUD

Scenic River LUD

State Highway

National Forest System Road - Open

National Forest System Road - Stored

Non-National Forest 

System Road

Proposed Reconstructed Road

Proposed System Road 

(reopened Decommissioned)

Proposed Temporary Road 

(reopened Decommissioned)

Proposed System Road

Proposed Temporary

Road

Young Growth

Systematic Strip Thin

Uniform Crown Thin

Old Growth

Helicopter

Shovel or Cable

Partial Cut

Class 1 Stream

Class 2 Stream

Class 3 Stream

Class 4 Stream

Lake

100’ Contour

Eagle Nest Buffer

Legacy

Visual Buffer

Deferred (within

Original Unit

Reconnaissance

Area)

581

R:\projects_2010\BigThorneEIS\maps\Unitcards\ROD_YG.mxd 3 June 2013

RR

SR

Young Growth

Appendix 1 - Unit Cards - 757 Appendix 1
Unit 

Number: 579

Alternatives: ROD Total Unit 28.4

Acres: 

Prescription: Crown Thinning

VCU 

Number: 581

Yarding System:

Cable, Shovel

Net Harvest

Volume 166

(MBF): 

LUD: Modified Landscape

Summary of Concerns, Responses, BMPs and Mitigation

SILVICULTURE: 

Existing Conditions: This unit lies entirely within Stand #5810200502. The stand origination date is 1969. The stand 

has had approximately 67% of the stand area pre-commercially thinned. This was primarily completed in 1989. The 

site potential appears to range from medium to high. The unit is in a successional stage of stem exclusion. This unit 

lies within the Deer Winter Range landscape zone.

Silvicultural Objective/Desired Condition (Deer Winter Range):

The management goal of young-growth treatment in this landscape zone is to improve growth, productivity, and 

forest health, while managing for a sustained yield, even flow of an industrial wood supply and improving deer 

winter range conditions in treated stands for the remainder of the rotation.

Silvicultural Prescription: Intermediate Treatment Crown Thinning

Apply crown thinning at approximately stand age 50. Crown thinning should retain at least 50% of the existing 

pretreatment stand basal area at that time. Retain trees in a generally uniform pattern. Skips or thickets may be left 

where logging system difficulties occur, in portions of settings where windthrow risk is expected to be unacceptable 

after thinning like along exposed stand edges or knobs, and in any areas where wildlife dens or nests are found. 

Gaps may occur where cable corridors come together near landings or other areas where extra room is needed to 

facilitate yarding or meet specific wildlife objectives.

The treatments being proposed are based on the analysis of current data for this stand projected forward in time 

using growth modeling. Marking guidelines covering the specifics of the treatment, such as species to favor for 

retention will be developed at the time of treatment.

TIMBER/YARDING: Shovel settings yard to the proposed temporary road. Cable settings yard to the proposed 

temporary road and NFS road 3030110.

ENGINEERING/ROADS: Unit is accessed by a proposed temporary road of 1,000 feet, constructed over 

decommissioned road bed.

BOTANY: No Concerns

INVASIVE SPECIES: No Concerns

FISHERIES: Streams are tributaries to Luck Lake. 

Stream#: 2 Class: II, IV Flagging: B/W, GW C-Type: HC0 Concerns: none 

Buffer (RMA): Class II for HCO greater of 100 feet or to the top of the side-slope break.

Alternatives: ROD Buffer (RAW): no review needed Protection: Category A and C

All other streams in unit: Class IV Flagging: G/W C-Type: HC or MM 

Concerns: none Buffer (RMA): none Protection: Category C

Temporary road (reopened decommissioned) for Unit 579: There are 2 class IV stream crossings. If any additional 

stream crossings are found, crossings structures and locations will be approved by USFS, in consultation with 

fisheries biologist or hydrologist, prior to construction (BMP 14.17). During construction of temporary roads 

implement BMPs 12.17, 13.10, 13.11, 13.16, 14.3, and 14.5.

GEOLOGY/KARST: No Concerns

HERITAGE RESOURCES: This unit was investigated per the third amended interagency Programmatic Agreement 

(PA) for historic properties. As specified by the PA, any potential adverse effect on historic properties (if any) was 

mitigated and portions of the Area of Potential Effect will be monitored by a qualified heritage specialist during 

and/or after actual ground disturbance.

SCENERY: Unit has about 19 acres with Low SIO and less than 1 acre with Moderate SIO. Entire unit is prescribed 

for uniform thinning; no concerns.

RECREATION: No Concerns

SOILS/WETLANDS: 

Slopes are estimated to range from about 10% to about 50%. There are approximately 12 acres of forested wetland 

in the southern two-thirds of the unit (R10 BMP 12.5 and National Core BMPs AqEco-2 and AqEco-4). The soils 

and wetlands are suitable for a minimum of partial suspension cable yarding or shovel yarding and should follow 

R10 BMPs 12.5, 13.2 and 13.9 and National Core BMPs Plan-2, Veg-2, Veg-4, Veg-5, and Veg-6. Follow shovel 

yarding guidelines outlined in the introductions to unit cards (R10 BMP 13.9 and National Core Veg-4). Partial 

758 - Big Thorne Project Record of Decision Appendix 1
harvest with ground-based removal and partial suspension thinning will meet soil quality standards. A 

decommissioned temporary road will be used for access, thus reducing soil disturbance.

WILDLIFE: 

Commercial thinning will enhance wildlife habitat near Luck Lake by improving forage availability and removing 

the stand for the stem exclusion phase for the duration of rotation (until it is harvested again). A road would be 

reopened to access the unit.

Appendix 1 - Unit Cards - 759 Appendix 1
3030114

3030110

3030112

3030110

2

1.2L

1

3

1.1L

1969

1993

1969

2010

579

A

A

B

B

C

C

D

D

E

E

F

F

G

G

H

H

I

I

J

J

10 10

9 9

8 8

7 7

6 6

5 5

4 4

3 3

2 2

1 1

Unit Number 579 ROD VCU: 

0 500

Feet

Past Harvest

(Year Origin)

Unsuitable Soils

Riparian Management

Area

Slope > 72%

Other Ownership

Old Growth Habitat LUD

Recreation River LUD

Scenic River LUD

State Highway

National Forest System Road - Open

National Forest System Road - Stored

Non-National Forest 

System Road

Proposed Reconstructed Road

Proposed System Road 

(reopened Decommissioned)

Proposed Temporary Road 

(reopened Decommissioned)

Proposed System Road

Proposed Temporary

Road

Young Growth

Systematic Strip Thin

Uniform Crown Thin

Old Growth

Helicopter

Shovel or Cable

Partial Cut

Class 1 Stream

Class 2 Stream

Class 3 Stream

Class 4 Stream

Lake

100’ Contour

Eagle Nest Buffer

Legacy

Visual Buffer

Deferred (within

Original Unit

Reconnaissance

Area)

581

R:\projects_2010\BigThorneEIS\maps\Unitcards\ROD_YG.mxd 3 June 2013

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SR

Young Growth

760 - Big Thorne Project Record of Decision Appendix 1
Unit 

Number: 581

Alternatives: ROD Total Unit 3.9

Acres: 

Prescription: Crown Thinning

VCU 

Number: 581

Yarding System:

Shovel

Net Harvest

Volume 23

(MBF): 

LUD: Timber Production

Summary of Concerns, Responses, BMPs and Mitigation

SILVICULTURE: 

Existing Conditions: Approximately 6 acres of this unit lies within Stand #5810400512. The stand origination date 

is 1969. Approximately 92% of the stand area was pre-commercially thinned in 1994. Approximately 5 acres of the 

unit lies within Stand #5810200506. The stand origination date is 1971. This stand was entirely pre-commercially 

thinned in 1992.The site potential in this unit appears to range from medium to high. The unit is in a successional 

stage of stem exclusion. This unit lies within the Deer Winter Habitat landscape zone.

Silvicultural Objective/Desired Condition (Deer Winter Range):

The management goal of young-growth treatment in this landscape zone is to improve growth, productivity, and 

forest health, while managing for a sustained yield, even flow of an industrial wood supply and improving deer 

winter range conditions in treated stands for the remainder of the rotation.

Silvicultural Prescription: Intermediate Treatment Crown Thinning

Apply crown thinning at approximately stand age 50. Crown thinning should retain at least 50% of the existing 

pretreatment stand basal area at that time. Retain trees in a generally uniform pattern. Skips or thickets may be left 

where logging system difficulties occur, in portions of settings where windthrow risk is expected to be unacceptable 

after thinning like along exposed stand edges or knobs, and in any areas where wildlife dens or nests are found. 

Gaps may occur where cable corridors come together near landings or other areas where extra room is needed to 

facilitate yarding or meet specific wildlife objectives.

The treatments being proposed are based on the analysis of current data for this stand projected forward in time 

using growth modeling. Marking guidelines covering the specifics of the treatment, such as species to favor for 

retention will be developed at the time of treatment.

TIMBER/YARDING: Shovel yarding to NFS road 3000000.

ENGINEERING/ROADS: No proposed road construction or reconstruction.

BOTANY: No Concerns

INVASIVE SPECIES: No Concerns

FISHERIES: Streams are tributaries to Luck Creek.

Stream#:1 Class: I Flagging: B/W C-Type: MMM Concerns: none 

Buffer (RMA): Class I for MMM greater of 120 feet, flood plain, riparian vegetation or soils, or riparian associated 

wetland fens.

Alternatives: ROD Buffer (RAW): no review needed Protection: Category A

Stream#: 1.1L.7L Class: I, II Flagging: B/W C-Type: AFM, HCO Concerns: none 

Buffer (RMA): Class I for AFM greater of 140 feet or active portion of the alluvial fan. Class II for HCO greater of 

100 feet or to the top of the side-slope break. 

Alternatives: ROD Buffer (RAW): no review needed Protection: Category A

Stream#: 1.1L.8L Class: I, II, III Flagging: B/W, O/W C-Type: AFM, HCO Concerns: none

Buffer (RMA): Class I for AFM greater of 140 feet or active portion of the alluvial fan. Class II for HCO greater of 

100 feet or to the top of the side-slope break. Class III for HCM to the top of the side-slope break.

Alternatives: ROD Buffer (RAW): no review needed Protection: Category A and B

GEOLOGY/KARST: No Concerns

HERITAGE RESOURCES: This unit was investigated per the third amended interagency Programmatic Agreement 

(PA) for historic properties. As specified by the PA, any potential adverse effect on historic properties (if any) was 

mitigated and portions of the Area of Potential Effect will be monitored by a qualified heritage specialist during 

and/or after actual ground disturbance.

SCENERY: Unit is mapped entirely with Low SIO and is entirely prescribed for uniform thinning. No concerns.

RECREATION: No Concerns

SOILS/WETLANDS: 

Slopes are estimated to range from about 15% to about 40%. Forested wetlands are intermixed throughout the unit 

(R10 BMP 12.5 and National Core BMPs AqEco-2 and AqEco-4). The soils and wetlands are suitable for shovel yarding. Follow 

shovel yarding guidelines outlined in the introductions to unit cards (R10 BMP 13.9 and National Core BMPs Plan2, Veg-2, and Veg-4). Partial harvest with ground-based removal will meet soil quality standards.

Appendix 1 - Unit Cards - 761 Appendix 1
WILDLIFE: 

Commercial thinning will enhance wildlife habitat along a tributary to Luck Creek by improving forage availability 

and removing the stand for the stem exclusion phase for the duration of rotation (until it is harvested again).

762 - Big Thorne Project Record of Decision Appendix 1
3000330

3000000

3000305

15

1.1L.2L

1.AL

1

1

1.1 L

1.1L.1 L

1.1L7L

1.1L.6L.1R

21

1.1L.5L

1.1L.6L

1.1L 16

1.1L .8L

21.1L

1.1L.3L

1.1L.4L.1L

1.AL

17.1L

18

1.1L.7L

21

17

20

19

1

1.1L.1L.2R .1L.1L.1L

1.AL.1L

1.1L.7L

1.1L.2L

1.1L.4L

3

1.1L.1R

1.1L.5 L

1969

1971

1970

1973

1969

1972

1971

581

582

189

A

A

B

B

C

C

D

D

E

E

F

F

G

G

H

H

I

I

J

J

10 10

9 9

8 8

7 7

6 6

5 5

4 4

3 3

2 2

1 1

Unit Number 581 ROD VCU: 

0 500

Feet

Past Harvest

(Year Origin)

Unsuitable Soils

Riparian Management

Area

Slope > 72%

Other Ownership

Old Growth Habitat LUD

Recreation River LUD

Scenic River LUD

State Highway

National Forest System Road - Open

National Forest System Road - Stored

Non-National Forest 

System Road

Proposed Reconstructed Road

Proposed System Road 

(reopened Decommissioned)

Proposed Temporary Road 

(reopened Decommissioned)

Proposed System Road

Proposed Temporary

Road

Young Growth

Systematic Strip Thin

Uniform Crown Thin

Old Growth

Helicopter

Shovel or Cable

Partial Cut

Class 1 Stream

Class 2 Stream

Class 3 Stream

Class 4 Stream

Lake

100’ Contour

Eagle Nest Buffer

Legacy

Visual Buffer

Deferred (within

Original Unit

Reconnaissance

Area)

581

R:\projects_2010\BigThorneEIS\maps\Unitcards\ROD_YG.mxd 3 June 2013

RR

SR

Young Growth

Appendix 1 - Unit Cards - 763 Appendix 1
Unit 

Number: 582

Alternatives: ROD Total Unit 3.2

Acres: 

Prescription: Crown Thinning

VCU 

Number: 581

Yarding System:

Shovel

Net Harvest

Volume 18

(MBF): 

LUD: Timber Production

Summary of Concerns, Responses, BMPs and Mitigation

SILVICULTURE: 

Existing Conditions: This unit lies entirely within Stand #5810400512. The stand origination date is 1969. 

Approximately 92% of the stand area was pre-commercially thinned in 1994. The site potential appears to range 

from medium to high. The unit is in a successional stage of stem exclusion. This unit lies within the Deer Winter 

Range landscape zone.

Silvicultural Objective/Desired Condition (Deer Winter Range):

The management goal of young-growth treatment in this landscape zone is to improve growth, productivity, and 

forest health, while managing for a sustained yield, even flow of an industrial wood supply and improving deer 

winter range conditions in treated stands for the remainder of the rotation.

Silvicultural Prescription: Intermediate Treatment Crown Thinning

Apply crown thinning at approximately stand age 50. Crown thinning should retain at least 50% of the existing 

pretreatment stand basal area at that time. Retain trees in a generally uniform pattern. Skips or thickets may be left 

where logging system difficulties occur, in portions of settings where windthrow risk is expected to be unacceptable 

after thinning like along exposed stand edges or knobs, and in any areas where wildlife dens or nests are found. 

Gaps may occur where cable corridors come together near landings or other areas where extra room is needed to 

facilitate yarding or meet specific wildlife objectives.

The treatments being proposed are based on the analysis of current data for this stand projected forward in time 

using growth modeling. Marking guidelines covering the specifics of the treatment, such as species to favor for 

retention will be developed at the time of treatment.

TIMBER/YARDING: Shovel yarding to NFS road 3000000.

ENGINEERING/ROADS: No proposed road construction or reconstruction.

BOTANY: No Concerns

INVASIVE SPECIES: No Concerns

FISHERIES: Streams are tributaries to Luck Creek.

Stream#: 1 Class: I Flagging: B/W C-Type: FPM Concerns: none 

Buffer (RMA): Class I for FPM greater of 130 feet, flood plain, riparian vegetation or soils, or riparian associated 

wetland fens.

Alternatives: ROD Buffer (RAW): no review needed Protection: Category A

Stream#: 1.1L Class: I Flagging: B/W C-Type: AFH Concerns: none 

Buffer (RMA): Class I for AFM greater of 140 feet or active portion of the alluvial fan. 

Alternatives: ROD Buffer (RAW): no review needed Protection: Category A and B

All other streams in unit: Class IV Flagging: G/W C-Type: HC or MM 

Concerns: none Buffer (RMA): none Protection: Category C

GEOLOGY/KARST: No Concerns

HERITAGE RESOURCES: This unit was investigated per the third amended interagency Programmatic Agreement 

(PA) for historic properties. As specified by the PA, any potential adverse effect on historic properties (if any) was 

mitigated and portions of the Area of Potential Effect will be monitored by a qualified heritage specialist during 

and/or after actual ground disturbance.

SCENERY: Unit is mapped entirely with Low SIO and is entirely prescribed for uniform thinning. No concerns.

RECREATION: No Concerns

SOILS/WETLANDS: Slopes are estimated to range from about 15% to about 30%. There is about 1/2 acre of 

forested wetland adjacent to the southwestern unit boundaries (R10 BMP 12.5 and National Core BMPs AqEco-2 and AqEco-4). 

The soils and wetlands are suitable for shovel yarding. Follow shovel yarding guidelines outlined in the 

introductions to unit cards (R10 BMP 13.9 and National Core BMPs Plan-2, Veg-2, and Veg-4). Partial harvest with 

ground-based removal will meet soil quality standards.

WILDLIFE: 

Commercial thinning will enhance wildlife habitat along a tributary to Luck Creek by improving forage availability 

and removing the stand for the stem exclusion phase for the duration of rotation (until it is harvested again).

764 - Big Thorne Project Record of Decision Appendix 1
3000305

3000000

17.1L

1.1L.2L

1.AL

1

1.1 L

17

1

1.1L7L

1

1.1L.6L.1R

2

21

1.1L.1L

1.1L.5L

1.1L.6L

1.1L .8L

21.1L

1.1L.3L

1.1L.4L.1L

1.AL

3

18

21

20

19

1.1L.1L.1L

1.1L.1L.2R

1.AL.1L 1.1L.2L

1.1L.7L

1.1L.4L

1.1L.7L

1.1L.1R

1.1L.5 L

1969

1971

1971

1972

1972

1973

581

582

189

A

A

B

B

C

C

D

D

E

E

F

F

G

G

H

H

I

I

J

J

10 10

9 9

8 8

7 7

6 6

5 5

4 4

3 3

2 2

1 1

Unit Number 582 ROD VCU: 

0 500

Feet

Past Harvest

(Year Origin)

Unsuitable Soils

Riparian Management

Area

Slope > 72%

Other Ownership

Old Growth Habitat LUD

Recreation River LUD

Scenic River LUD

State Highway

National Forest System Road - Open

National Forest System Road - Stored

Non-National Forest 

System Road

Proposed Reconstructed Road

Proposed System Road 

(reopened Decommissioned)

Proposed Temporary Road 

(reopened Decommissioned)

Proposed System Road

Proposed Temporary

Road

Young Growth

Systematic Strip Thin

Uniform Crown Thin

Old Growth

Helicopter

Shovel or Cable

Partial Cut

Class 1 Stream

Class 2 Stream

Class 3 Stream

Class 4 Stream

Lake

100’ Contour

Eagle Nest Buffer

Legacy

Visual Buffer

Deferred (within

Original Unit

Reconnaissance

Area)

581

R:\projects_2010\BigThorneEIS\maps\Unitcards\ROD_YG.mxd 3 June 2013

RR

SR

Young Growth

Appendix 1 - Unit Cards - 765 Appendix 1