United States

Department

of Agriculture

Forest Service

Rocky Mountain

Research Station

General Technical

Report RMRS-GTR-172

September 2006

Photo Series for Quantifying Forest 

Residues in Managed Lands of the 

Medicine Bow National Forest

John B. Popp

John E. Lundquist

ROCKY MOUNTAIN

Research Station
You may order additional copies of this publication by sending your 

mailing information in label form through one of the following media. 

Please specify the publication title and number.

Telephone (970) 498-1392

FAX (970) 498-1122

E-mail rschneider@fs.fed.us

Web site http://www.fs.fed.us/rm

Mailing Address Publications Distribution

Rocky Mountain Research Station

240 West Prospect Road

Fort Collins, CO 80526

Popp, John B.; Lundquist, John E. 2006. Photo series for quantifying forest residues in managed lands of the Medicine Bow 

National Forest. Gen. Tech. Rep. RMRS-GTR-172. Fort Collins, CO: United States Department of Agriculture, Forest Service, 

Rocky Mountain Research Station. 105 p.

Abstract ______________________________________________________________________

	 This photo series presents a visual representation of a range of fuel loading conditions specifically found on the Medicine Bow

National Forest. The photos are grouped by forest type and past management practices. This field guide describes the distribution of

different types of woody fuels and includes some vegetation data.
Information presented in this guide

This photo series presents a visual representation of a range of fuel loading conditions. It was designed in collaboration with personnel on the 

Medicine Bow National Forest. The guide is designed specifically for the Medicine Bow National Fores

	 The purpose of this guide is to help field crews assess and monitor the amount and nature of fuels in actively managed areas. The categories us

here were developed by Medicine Bow NF staff. The photos are grouped by forest types and past management practices, and each category contains 

one or more photos which are ordered by increasing fuel loads. This photo series should provide an easy way to check compliance with several aspects 

of the Forest Plan, including timber harvesting, wildlife constraints, and downed woody biomass estimates, as well as firefighting concerns.

Fuels plots for this photo series were established in 2004 and 2005 in the Medicine Bow and Sierra Madre mountains using the standards 

established by Brown in 19741. The photographs used here were taken at these fuels transects, with the associated data reflecting the actual fore

conditions at each specific plot. This information describes the distribution of different types of woody fuels. Each data page includes a title descr

the general stand condition and past fuels treatment. There is a section containing information on the sample plot used to describe each category, 

including its UTM coordinates and slope. Fuel loadings in tons per acre are broken out by size (diameter) class. The classes of 0 – 0.25", 0.26 – 1.0", 

1.1 – 3.0", and > 3.0" correspond to 1-, 10-, 100-, and 1000-hour fuels categories used in fire behavior models. The largest category is split into sou

and rotten logs. These data are also displayed in a bar graph. The last section includes fuel height, duff and litter depth, and percent of the transect 

covered by woody fuels.

In addition to fuels information, vegetation data were collected at most of these plots. Average values for percent canopy closure, tree height, and 

basal area (ft2/acre) by species have been included where available. Coordinates of the transects’ starting points were collected using the NAD27 

georeferencing system. For this publication, the coordinates were converted to NAD83 and are in UTM Zone 13.

How to use this guide. This guide allows field personnel with minimal training to quickly

estimate fuel levels. First determine which general category to start with, based on forest type and past management activity, if known. Then look 

through the photos within that category and choose the one looking most like the stand being examined. If the stand falls between two photos, the 

numbers from both plots can be averaged.

1 Brown, James K. 1974. Handbook for identifying downed woody material. USDA For. Serv. Gen. Tech. Rep. INT-16, 24 p., illus. Intermountain Forest 

and Range Experiment Station, Ogden, Utah.
Contents

CATEGORY 1—Clearcut in lodgepole pine sawlogs with slash treatment as lop and scatter............................................................... 1

CATEGORY 2—Clearcut in lodgepole pine sawlogs with slash treatment as whole tree skid (slash piled at landing).......................... 9

CATEGORY 3—Clearcut in lodgepole pine sawlogs with slash treatment as pile in unit and burn ..................................................... 15

CATEGORY 4—Precommercial thin in lodgepole pine regeneration with slash treatment specified as lop and scatter ..................... 21

CATEGORY 5—Individual tree mark in lodgepole pine sawlogs with slash treatment specified as lop and scatter............................ 29

CATEGORY 6—Individual tree mark in lodgepole pine sawlogs with slash treatment specified as whole tree skid

(slash piled at landing)........................................................................................................................................ 37

CATEGORY 7—Individual tree mark in lodgepole pine pole sized timber with slash treatment specified as lop and scatter.............. 45

CATEGORY 8—Individual tree mark in lodgepole pine pole sized timber with slash treatment specified as

whole tree skid (slash piled at landing)............................................................................................................... 53

CATEGORY 9—Individual tree mark in mixed conifer with slash treatment specified as whole tree skid (slash piled at landing) ...... 57

CATEGORY 10—Individual tree mark in mixed conifer with slash treatment specified as lop and scatter.......................................... 63

CATEGORY 11—Older regenerated lodgepole pine stands ................................................................................................................ 71

CATEGORY 12—Older regenerated spruce-fir stands ........................................................................................................................ 75

CATEGORY 13—Old growth in lodgepole pine.................................................................................................................................... 83

CATEGORY 14—Old growth in spruce-fir............................................................................................................................................ 95
USDA Forest Service Gen. Tech. Rep. RMRS-GTR-172. 2006 

CATEGORY 1

Clearcut in lodgepole pine sawlogs with slash treatment as lop and scatter
USDA Forest Service Gen. Tech. Rep. RMRS-GTR-172. 200
USDA Forest Service Gen. Tech. Rep. RMRS-GTR-172. 2006 

Plot utmx utmy Canopy Average Tree

Closure (%) Height (ft.)

56 390277 4558776 0 0

Total aspen spruce subalpine fir lodgepole pine

0 0 0 0 0

0 - 0.25" 0.26 - 1" 1.1 - 3" 0 - 3"

0.44 1.75 4.56 6.75

> 3" sound > 3" rotten > 3" total Grand Total

11.46 0.00 11.46 18.21

% ground covered by fuels 4

Average fuels height (in.) 1.0

Average duff depth (in.) 0.0

Average litter depth (in.) 0.0

CLEARCUT IN LODGEPOLE PINE SAWLOGS WITH SLASH TREATMENT SPECIFIED AS LOP AND SCATTER (1A)

FUEL LOADING (tons/ac)

OTHER FUELS DATA

PLOT DATA

Basal Area (ft2/ac) by Species

Size class

Tons/acr

e

0

10

20

30

40

50

<.25" .25"-1" 1"-3" >3" sound >3" rotten
USDA Forest Service Gen. Tech. Rep. RMRS-GTR-172. 2006 
USDA Forest Service Gen. Tech. Rep. RMRS-GTR-172. 2006 

Plot utmx utmy Canopy Average Tree

Closure (%) Height (ft.)

51 387816 4543143 0 0

Total aspen spruce subalpine fir lodgepole pine

0 0 0 0 0

0 - 0.25" 0.26 - 1" 1.1 - 3" 0 - 3"

0.39 5.07 9.12 14.57

> 3" sound > 3" rotten > 3" total Grand Total

15.51 4.84 20.35 34.92

% ground covered by fuels 9

Average fuels height (in.) 1.0

Average duff depth (in.) 0.7

Average litter depth (in.) 0.0

CLEARCUT IN LODGEPOLE PINE SAWLOGS WITH SLASH TREATMENT SPECIFIED AS LOP AND SCATTER (1B)

PLOT DATA

Basal Area (ft2/ac) by Species

FUEL LOADING (tons/ac)

OTHER FUELS DATA

0

10

20

30

40

50

<.25" .25"-1" 1"-3" >3" sound >3" rotten

Size class

Tons/acre
USDA Forest Service Gen. Tech. Rep. RMRS-GTR-172. 200
USDA Forest Service Gen. Tech. Rep. RMRS-GTR-172. 200

Plot utmx utmy Canopy Average Tree

Closure (%) Height (ft.)

28 405127 4577666 0 0

Total aspen spruce subalpine fir lodgepole pine

0 0 0 0 0

0 - 0.25" 0.26 - 1" 1.1 - 3" 0 - 3"

0.17 1.37 25.94 27.48

> 3" sound > 3" rotten > 3" total Grand Total

48.63 6.44 55.07 82.55

% ground covered by fuels 20

Average fuels height (in.) 1.3

Average duff depth (in.) 0.0

Average litter depth (in.) 0.0

CLEARCUT IN LODGEPOLE PINE SAWLOGS WITH SLASH TREATMENT SPECIFIED AS LOP AND SCATTER (1C)

PLOT DATA

Basal Area (ft2/ac) by Species

FUEL LOADING (tons/ac)

OTHER FUELS DATA

Size class

Tons/acre

0

10

20

30

40

50

<.25" .25"-1" 1"-3" >3" sound >3" rotten

USDA Forest Service Gen. Tech. Rep. RMRS-GTR-172. 2006 

CATEGORY 2

Clearcut in lodgepole pine sawlogs with slash treatment as whole tree skid (slash piled at landing)
USDA Forest Service Gen. Tech. Rep. RMRS-GTR-172. 2006 
USDA Forest Service Gen. Tech. Rep. RMRS-GTR-172. 2006

Plot utmx utmy Canopy Average Tree

Closure (%) Height (ft.)

97 321798 4576050 N/A N/A

Total aspen spruce subalpine fir lodgepole pine

N/A N/A N/A N/A N/A

0 - 0.25" 0.26 - 1" 1.1 - 3" 0 - 3"

0.24 1.94 1.52 3.70

> 3" sound > 3" rotten > 3" total Grand Total

3.46 1.30 4.76 8.47

% ground covered by fuels 1

Average fuels height (in.) 3.0

Average duff depth (in.) 0.5

Average litter depth (in.) 0.8

OTHER FUELS DATA

CLEARCUT IN LODGEPOLE PINE SAWLOGS WITH SLASH TREATMENT SPECIFIED AS WHOLE TREE SKID (2A)

PLOT DATA

Basal Area (ft2/ac) by Species

FUEL LOADING (tons/ac)

0

2

4

6

8

10

12

14

16

<.25" .25"-1" 1"-3" >3" sound >3" rotten

Size class

Tons/acr

e
USDA Forest Service Gen. Tech. Rep. RMRS-GTR-172. 2006 
USDA Forest Service Gen. Tech. Rep. RMRS-GTR-172. 2006

Plot utmx utmy Canopy Average Tree

Closure (%) Height (ft.)

95 321556 4575835 N/A N/A

Total aspen spruce subalpine fir lodgepole pine

N/A N/A N/A N/A N/A

0 - 0.25" 0.26 - 1" 1.1 - 3" 0 - 3"

0.18 1.17 3.03 4.38

> 3" sound > 3" rotten > 3" total Grand Total

14.08 1.03 15.10 19.48

% ground covered by fuels 1

Average fuels height (in.) 4.0

Average duff depth (in.) 0.2

Average litter depth (in.) 0.3

FUEL LOADING (tons/ac)

OTHER FUELS DATA

CLEARCUT IN LODGEPOLE PINE SAWLOGS WITH SLASH TREATMENT SPECIFIED AS WHOLE TREE SKID (2B)

PLOT DATA

Basal Area (ft2/ac) by Species

0

2

4

6

8

10

12

14

16

<.25" .25"-1" 1"-3" >3" sound >3" rotten

Size class

Tons/acr

e

USDA Forest Service Gen. Tech. Rep. RMRS-GTR-172. 2006

CATEGORY 3

Clearcut in lodgepole pine sawlogs with slash treatment as pile in unit and burn
USDA Forest Service Gen. Tech. Rep. RMRS-GTR-172. 2006 
USDA Forest Service Gen. Tech. Rep. RMRS-GTR-172. 2006 

Plot utmx utmy Canopy Average Tree

Closure (%) Height (ft.)

91 322216 4574825 0 0

Total aspen spruce subalpine fir lodgepole pine

0 0 0 0 0

0 - 0.25" 0.26 - 1" 1.1 - 3" 0 - 3"

0.16 2.14 12.12 14.42

> 3" sound > 3" rotten > 3" total Grand Total

4.43 0.40 4.83 19.25

% ground covered by fuels 1

Average fuels height (in.) 1.8

Average duff depth (in.) 0.5

Average litter depth (in.) 0.8

CLEARCUT IN LODGEPOLE PINE SAWLOGS WITH SLASH TREATMENT SPECIFIED AS PILE IN UNIT AND BURN (3A)

PLOT DATA

Basal Area (ft2/ac) by Species

FUEL LOADING (tons/ac)

OTHER FUELS DATA

0

2

4

6

8

10

12

14

16

<.25" .25"-1" 1"-3" >3" sound >3" rotten

Size class

Tons/acr

e
USDA Forest Service Gen. Tech. Rep. RMRS-GTR-172. 2006 
USDA Forest Service Gen. Tech. Rep. RMRS-GTR-172. 2006

Plot utmx utmy Canopy Average Tree

Closure (%) Height (ft.)

89 322116 4575033 0 0

Total aspen spruce subalpine fir lodgepole pine

0 0 0 0 0

0 - 0.25" 0.26 - 1" 1.1 - 3" 0 - 3"

0.13 1.55 12.12 13.80

> 3" sound > 3" rotten > 3" total Grand Total

14.32 0.90 15.22 29.02

% ground covered by fuels 2

Average fuels height (in.) 1.5

Average duff depth (in.) 0.5

Average litter depth (in.) 0.5

PLOT DATA

Basal Area (ft2/ac) by Species

FUEL LOADING (tons/ac)

OTHER FUELS DATA

CLEARCUT IN LODGEPOLE PINE SAWLOGS WITH SLASH TREATMENT SPECIFIED AS PILE IN UNIT AND BURN (3B)

0

2

4

6

8

10

12

14

16

<.25" .25"-1" 1"-3" >3" sound >3" rotten

Size class

Tons/acr

e

USDA Forest Service Gen. Tech. Rep. RMRS-GTR-172. 2006 

CATEGORY 4

Precommercial thin in lodgepole pine regeneration with slash treatment specified as lop and scatter
USDA Forest Service Gen. Tech. Rep. RMRS-GTR-172. 2006 2
USDA Forest Service Gen. Tech. Rep. RMRS-GTR-172. 2006 

Plot utmx utmy Canopy Average Tree

Closure (%) Height (ft.)

58 383216 4558455 93 58

Total aspen spruce subalpine fir lodgepole pine

162 0 0 0 162

0 - 0.25" 0.26 - 1" 1.1 - 3" 0 - 3"

0.17 0.59 9.15 9.91

> 3" sound > 3" rotten > 3" total Grand Total

0.90 1.71 2.61 12.53

% ground covered by fuels 2

Average fuels height (in.) 1.3

Average duff depth (in.) 0.3

Average litter depth (in.) 3.3

Basal Area (ft2/ac) by Species

FUEL LOADING (tons/ac)

OTHER FUELS DATA

SPECIFIED AS LOP AND SCATTER (4A)

PRECOMMERCIAL THIN IN LODGEPOLE PINE REGENERATION WITH SLASH TREATMENT

PLOT DATA

0

2

4

6

8

10

12

14

<.25" .25"-1" 1"-3" >3" sound >3" rotten

Size class

Tons/acre
USDA Forest Service Gen. Tech. Rep. RMRS-GTR-172. 2006 
USDA Forest Service Gen. Tech. Rep. RMRS-GTR-172. 2006 

Plot utmx utmy Canopy Average Tree

Closure (%) Height (ft.)

45 405580 4545619 78 56

Total aspen spruce subalpine fir lodgepole pine

160 0 0 0 160

0 - 0.25" 0.26 - 1" 1.1 - 3" 0 - 3"

0.18 0.98 3.06 4.23

> 3" sound > 3" rotten > 3" total Grand Total

13.18 11.12 24.30 28.53

% ground covered by fuels 7

Average fuels height (in.) 2.3

Average duff depth (in.) 1.3

Average litter depth (in.) 0.7

FUEL LOADING (tons/ac)

OTHER FUELS DATA

PRECOMMERCIAL THIN IN LODGEPOLE PINE REGENERATION WITH SLASH TREATMENT

SPECIFIED AS LOP AND SCATTER (4B)

PLOT DATA

Basal Area (ft2/ac) by Species

0

2

4

6

8

10

12

14

<.25" .25"-1" 1"-3" >3" sound >3" rotten

Size class

Tons/acre
USDA Forest Service Gen. Tech. Rep. RMRS-GTR-172. 2006 2
USDA Forest Service Gen. Tech. Rep. RMRS-GTR-172. 2006 2

Plot utmx utmy Canopy Average Tree

Closure (%) Height (ft.)

19 391673 4556239 54 24

Total aspen spruce subalpine fir lodgepole pine

69 0 4 2 62

0 - 0.25" 0.26 - 1" 1.1 - 3" 0 - 3"

0.04 0.58 12.12 12.74

> 3" sound > 3" rotten > 3" total Grand Total

10.04 11.65 21.68 34.43

% ground covered by fuels 8

Average fuels height (in.) 0.0

Average duff depth (in.) 0.7

Average litter depth (in.) 0.7

FUEL LOADING (tons/ac)

OTHER FUELS DATA

PRECOMMERCIAL THIN IN LODGEPOLE PINE REGENERATION WITH SLASH TREATMENT

SPECIFIED AS LOP AND SCATTER (4C)

PLOT DATA

Basal Area (ft2/ac) by Species

0

2

4

6

8

10

12

14

<.25" .25"-1" 1"-3" >3" sound >3" rotten

Size class

Tons/acre

USDA Forest Service Gen. Tech. Rep. RMRS-GTR-172. 2006 

CATEGORY 5

Individual tree mark in lodgepole pine sawlogs with slash treatment specified as lop and scatter
USDA Forest Service Gen. Tech. Rep. RMRS-GTR-172. 2006 
USDA Forest Service Gen. Tech. Rep. RMRS-GTR-172. 2006

Plot utmx utmy Canopy Average Tree

Closure (%) Height (ft.)

79 388044 4595822 80 74

Total aspen spruce subalpine fir lodgepole pine

98 0 4 0 93

0 - 0.25" 0.26 - 1" 1.1 - 3" 0 - 3"

0.22 0.98 0.00 1.20

> 3" sound > 3" rotten > 3" total Grand Total

8.03 0.00 8.03 9.23

% ground covered by fuels 3

Average fuels height (in.) 0.3

Average duff depth (in.) 0.3

Average litter depth (in.) 0.3

INDIVIDUAL TREE MARK IN LODGEPOLE PINE SAWLOGS WITH SLASH TREATMENT

PLOT DATA

Basal Area (ft2/ac) by Species

SPECIFIED AS LOP AND SCATTER (5A)

FUEL LOADING (tons/ac)

OTHER FUELS DATA

0

2

4

6

8

10

12

14

16

<.25" .25"-1" 1"-3" >3" sound >3" rotten

Size class

Tons/acre
USDA Forest Service Gen. Tech. Rep. RMRS-GTR-172. 2006 
USDA Forest Service Gen. Tech. Rep. RMRS-GTR-172. 2006

Plot utmx utmy Canopy Average Tree

Closure (%) Height (ft.)

22 398421 4591034 53 57

Total aspen spruce subalpine fir lodgepole pine

118 0 2 4 111

0 - 0.25" 0.26 - 1" 1.1 - 3" 0 - 3"

0.21 0.97 1.52 2.71

> 3" sound > 3" rotten > 3" total Grand Total

12.47 2.51 14.97 17.68

% ground covered by fuels 8

Average fuels height (in.) 0.7

Average duff depth (in.) 1.0

Average litter depth (in.) 0.5

FUEL LOADING (tons/ac)

OTHER FUELS DATA

PLOT DATA

Basal Area (ft2/ac) by Species

INDIVIDUAL TREE MARK IN LODGEPOLE PINE SAWLOGS WITH SLASH TREATMENT

SPECIFIED AS LOP AND SCATTER (5B)

0

2

4

6

8

10

12

14

16

<.25" .25"-1" 1"-3" >3" sound >3" rotten

Size class

Tons/acre
USDA Forest Service Gen. Tech. Rep. RMRS-GTR-172. 2006
USDA Forest Service Gen. Tech. Rep. RMRS-GTR-172. 2006

Plot utmx utmy Canopy Average Tree

Closure (%) Height (ft.)

49 401988 4556528 95 57

Total aspen spruce subalpine fir lodgepole pine

164 0 4 22 138

0 - 0.25" 0.26 - 1" 1.1 - 3" 0 - 3"

0.20 0.19 10.60 11.00

> 3" sound > 3" rotten > 3" total Grand Total

14.03 11.30 25.33 36.33

% ground covered by fuels 9

Average fuels height (in.) 3.0

Average duff depth (in.) 1.0

Average litter depth (in.) 1.0

INDIVIDUAL TREE MARK IN LODGEPOLE PINE SAWLOGS WITH SLASH TREATMENT

SPECIFIED AS LOP AND SCATTER (5C)

PLOT DATA

Basal Area (ft2/ac) by Species

FUEL LOADING (tons/ac)

OTHER FUELS DATA

0

2

4

6

8

10

12

14

16

<.25" .25"-1" 1"-3" >3" sound >3" rotten

Size class

Tons/acre

USDA Forest Service Gen. Tech. Rep. RMRS-GTR-172. 2006 

CATEGORY 6

Individual tree mark in lodgepole pine sawlogs with slash treatment

specified as whole tree skid (slash piled at landing)
USDA Forest Service Gen. Tech. Rep. RMRS-GTR-172. 2006 
USDA Forest Service Gen. Tech. Rep. RMRS-GTR-172. 2006

Plot utmx utmy Canopy Average Tree

Closure (%) Height (ft.)

93 321310 4575633 N/A N/A

Total aspen spruce subalpine fir lodgepole pine

N/A N/A N/A N/A N/A

0 - 0.25" 0.26 - 1" 1.1 - 3" 0 - 3"

0.38 2.33 9.09 11.81

> 3" sound > 3" rotten > 3" total Grand Total

3.57 0.62 4.20 16.00

% ground covered by fuels 1

Average fuels height (in.) 1.7

Average duff depth (in.) 0.7

Average litter depth (in.) 0.3

Basal Area (ft2/ac) by Species

FUEL LOADING (tons/ac)

OTHER FUELS DATA

SPECIFIED AS WHOLE TREE SKID (6A)

PLOT DATA

INDIVIDUAL TREE MARK IN LODGEPOLE PINE SAWLOGS WITH SLASH TREATMENT

0

5

10

15

20

25

30

35

40

45

50

<.25" .25"-1" 1"-3" >3" sound >3" rotten

Size class

Tons/acr

e
USDA Forest Service Gen. Tech. Rep. RMRS-GTR-172. 2006 
USDA Forest Service Gen. Tech. Rep. RMRS-GTR-172. 2006

Plot utmx utmy Canopy Average Tree

Closure (%) Height (ft.)

63 393495 4565466 77 63

Total aspen spruce subalpine fir lodgepole pine

140 0 0 0 140

0 - 0.25" 0.26 - 1" 1.1 - 3" 0 - 3"

0.26 0.58 7.57 8.42

> 3" sound > 3" rotten > 3" total Grand Total

33.03 13.95 46.98 55.40

% ground covered by fuels 10

Average fuels height (in.) 1.0

Average duff depth (in.) 0.7

Average litter depth (in.) 0.7

FUEL LOADING (tons/ac)

OTHER FUELS DATA

INDIVIDUAL TREE MARK IN LODGEPOLE PINE SAWLOGS WITH SLASH TREATMENT

SPECIFIED AS WHOLE TREE SKID (6B)

PLOT DATA

Basal Area (ft2/ac) by Species

0

5

10

15

20

25

30

35

40

45

50

<.25" .25"-1" 1"-3" >3" sound >3" rotten

Size class

Tons/acre
USDA Forest Service Gen. Tech. Rep. RMRS-GTR-172. 2006 
USDA Forest Service Gen. Tech. Rep. RMRS-GTR-172. 2006

Plot utmx utmy Canopy Average Tree

Closure (%) Height (ft.)

92 321285 4575595 N/A N/A

Total aspen spruce subalpine fir lodgepole pine

N/A N/A N/A N/A N/A

0 - 0.25" 0.26 - 1" 1.1 - 3" 0 - 3"

0.34 4.08 7.58 12.00

> 3" sound > 3" rotten > 3" total Grand Total

46.36 4.50 50.86 62.86

% ground covered by fuels 15

Average fuels height (in.) 25.0

Average duff depth (in.) 0.7

Average litter depth (in.) 2.3

PLOT DATA

Basal Area (ft2/ac) by Species

FUEL LOADING (tons/ac)

OTHER FUELS DATA

INDIVIDUAL TREE MARK IN LODGEPOLE PINE SAWLOGS WITH SLASH TREATMENT

SPECIFIED AS WHOLE TREE SKID (6C)

0

5

10

15

20

25

30

35

40

45

50

<.25" .25"-1" 1"-3" >3" sound >3" rotten

Size class

Tons/arc

e

USDA Forest Service Gen. Tech. Rep. RMRS-GTR-172. 2006

CATEGORY 7

Individual tree mark in lodgepole pine pole sized timber 

with slash treatment specified as lop and scatter
USDA Forest Service Gen. Tech. Rep. RMRS-GTR-172. 2006 
USDA Forest Service Gen. Tech. Rep. RMRS-GTR-172. 2006 

Plot utmx utmy Canopy Average Tree

Closure (%) Height (ft.)

2 380726 4595722 88 51

Total aspen spruce subalpine fir lodgepole pine

253 0 0 0 253

0 - 0.25" 0.26 - 1" 1.1 - 3" 0 - 3"

0.08 0.78 4.59 5.46

> 3" sound > 3" rotten > 3" total Grand Total

4.11 0.63 4.74 10.20

% ground covered by fuels 2

Average fuels height (in.) 1.2

Average duff depth (in.) 0.0

Average litter depth (in.) 0.5

FUEL LOADING (tons/ac)

OTHER FUELS DATA

INDIVIDUAL TREE MARK IN LODGEPOLE PINE POLE SIZED TIMBER WITH SLASH TREATMENT

SPECIFIED AS LOP AND SCATTER (7A)

PLOT DATA

Basal Area (ft2/ac) by Species

0

2

4

6

8

10

12

14

16

<.25" .25"-1" 1"-3" >3" sound >3" rotten

Size class

Tons/acre
USDA Forest Service Gen. Tech. Rep. RMRS-GTR-172. 2006 
USDA Forest Service Gen. Tech. Rep. RMRS-GTR-172. 2006

Plot utmx utmy Canopy Average Tree

Closure (%) Height (ft.)

71 383977 4594231 90 68

Total aspen spruce subalpine fir lodgepole pine

218 0 0 0 218

0 - 0.25" 0.26 - 1" 1.1 - 3" 0 - 3"

0.34 1.36 4.55 6.25

> 3" sound > 3" rotten > 3" total Grand Total

12.72 0.00 12.72 18.98

% ground covered by fuels 6

Average fuels height (in.) 0.7

Average duff depth (in.) 0.7

Average litter depth (in.) 0.7

PLOT DATA

Basal Area (ft2/ac) by Species

FUEL LOADING (tons/ac)

OTHER FUELS DATA

INDIVIDUAL TREE MARK IN LODGEPOLE PINE POLE SIZED TIMBER WITH SLASH TREATMENT

SPECIFIED AS LOP AND SCATTER (7B)

0

2

4

6

8

10

12

14

16

<.25" .25"-1" 1"-3" >3" sound >3" rotten

Size class

Tons/acre
USDA Forest Service Gen. Tech. Rep. RMRS-GTR-172. 2006 
USDA Forest Service Gen. Tech. Rep. RMRS-GTR-172. 2006

Plot utmx utmy Canopy Average Tree

Closure (%) Height (ft.)

1 373275 4585793 95 69

Total aspen spruce subalpine fir lodgepole pine

296 0 2 11 282

0 - 0.25" 0.26 - 1" 1.1 - 3" 0 - 3"

0.18 3.57 0.00 3.74

> 3" sound > 3" rotten > 3" total Grand Total

6.34 14.83 21.17 24.91

% ground covered by fuels 25

Average fuels height (in.) 2.3

Average duff depth (in.) 0.8

Average litter depth (in.) 0.5

FUEL LOADING (tons/ac)

OTHER FUELS DATA

INDIVIDUAL TREE MARK IN LODGEPOLE PINE POLE SIZED TIMBER WITH SLASH TREATMENT

SPECIFIED AS LOP AND SCATTER (7C)

PLOT DATA

Basal Area (ft2/ac) by Species

0

2

4

6

8

10

12

14

16

<.25" .25"-1" 1"-3" >3" sound >3" rotten

Size class

Tons/acre

USDA Forest Service Gen. Tech. Rep. RMRS-GTR-172. 2006

CATEGORY 8

Individual tree mark in lodgepole pine pole sized timber with slash treatment

specified as whole tree skid (slash piled at landing)
USDA Forest Service Gen. Tech. Rep. RMRS-GTR-172. 2006
USDA Forest Service Gen. Tech. Rep. RMRS-GTR-172. 2006

Plot utmx utmy Canopy Average Tree

Closure (%) Height (ft.)

100 321711 4576225 N/A N/A

Total aspen spruce subalpine fir lodgepole pine

N/A N/A N/A N/A N/A

0 - 0.25" 0.26 - 1" 1.1 - 3" 0 - 3"

0.50 1.36 3.03 4.89

> 3" sound > 3" rotten > 3" total Grand Total

13.22 0.00 13.22 18.11

% ground covered by fuels 1

Average fuels height (in.) 2.3

Average duff depth (in.) 0.5

Average litter depth (in.) 0.6

SPECIFIED AS WHOLE TREE SKID (8A)

PLOT DATA

Basal Area (ft2/ac) by Species

FUEL LOADING (tons/ac)

OTHER FUELS DATA

INDIVIDUAL TREE MARK IN LODGEPOLE PINE POLE SIZED TIMBER WITH SLASH TREATMENT

0

2

4

6

8

10

12

14

<.25" .25"-1" 1"-3" >3" sound >3" rotten

Size class

Tons/acr

e

USDA Forest Service Gen. Tech. Rep. RMRS-GTR-172. 2006 

CATEGORY 9

Individual tree mark in mixed conifer with slash treatment 

specified as whole tree skid (slash piled at landing)
USDA Forest Service Gen. Tech. Rep. RMRS-GTR-172. 2006 
USDA Forest Service Gen. Tech. Rep. RMRS-GTR-172. 2006

Plot utmx utmy Canopy Average Tree

Closure (%) Height (ft.)

74 376730 4577488 81 53

Total aspen spruce subalpine fir lodgepole pine

82 0 0 13 69

0 - 0.25" 0.26 - 1" 1.1 - 3" 0 - 3"

0.90 0.59 4.60 6.08

> 3" sound > 3" rotten > 3" total Grand Total

14.48 3.23 17.72 23.80

% ground covered by fuels 5

Average fuels height (in.) 0.0

Average duff depth (in.) 1.3

Average litter depth (in.) 0.0

INDIVIDUAL TREE MARK IN MIXED CONIFER WITH SLASH TREATMENT SPECIFIED AS WHOLE TREE SKID (9A)

PLOT DATA

Basal Area (ft2/ac) by Species

FUEL LOADING (tons/ac)

OTHER FUELS DATA

0

10

20

30

40

50

60

70

80

<.25" .25"-1" 1"-3" >3" sound >3" rotten

Size class

Tons/acr

e
USDA Forest Service Gen. Tech. Rep. RMRS-GTR-172. 2006 6
USDA Forest Service Gen. Tech. Rep. RMRS-GTR-172. 2006 

Plot utmx utmy Canopy Average Tree

Closure (%) Height (ft.)

31 393389 4591087 73 91

Total aspen spruce subalpine fir lodgepole pine

160 0 84 76 0

0 - 0.25" 0.26 - 1" 1.1 - 3" 0 - 3"

0.94 2.92 6.06 9.91

> 3" sound > 3" rotten > 3" total Grand Total

75.32 2.50 77.82 87.73

% ground covered by fuels 11

Average fuels height (in.) 5.0

Average duff depth (in.) 1.7

Average litter depth (in.) 1.0

INDIVIDUAL TREE MARK IN MIXED CONIFER WITH SLASH TREATMENT SPECIFIED AS WHOLE TREE SKID (9B)

PLOT DATA

Basal Area (ft2/ac) by Species

FUEL LOADING (tons/ac)

OTHER FUELS DATA

0

10

20

30

40

50

60

70

80

<.25" .25"-1" 1"-3" >3" sound >3" rotten

Size class

Tons/acr

e

USDA Forest Service Gen. Tech. Rep. RMRS-GTR-172. 2006 

CATEGORY 10

Individual tree mark in mixed conifer with slash treatment specified as lop and scatter
USDA Forest Service Gen. Tech. Rep. RMRS-GTR-172. 2006 
USDA Forest Service Gen. Tech. Rep. RMRS-GTR-172. 2006 

Plot utmx utmy Canopy Average Tree

Closure (%) Height (ft.)

76 378302 4574577 53 60

Total aspen spruce subalpine fir lodgepole pine

73 0 0 69 4

0 - 0.25" 0.26 - 1" 1.1 - 3" 0 - 3"

0.79 3.12 10.64 14.55

> 3" sound > 3" rotten > 3" total Grand Total

15.41 2.93 18.34 32.89

% ground covered by fuels 4

Average fuels height (in.) 0.3

Average duff depth (in.) 1.0

Average litter depth (in.) 0.0

INDIVIDUAL TREE MARK IN MIXED CONIFER WITH SLASH TREATMENT SPECIFIED AS LOP AND SCATTER (10A)

PLOT DATA

Basal Area (ft2/ac) by Species

FUEL LOADING (tons/ac)

OTHER FUELS DATA

0

10

20

30

40

50

60

70

<.25" .25"-1" 1"-3" >3" sound >3" rotten

Size class

Tons/acr

e
USDA Forest Service Gen. Tech. Rep. RMRS-GTR-172. 2006 6
USDA Forest Service Gen. Tech. Rep. RMRS-GTR-172. 2006 6

Plot utmx utmy Canopy Average Tree

Closure (%) Height (ft.)

83 378034 4582686 64 67

Total aspen spruce subalpine fir lodgepole pine

147 0 93 27 27

0 - 0.25" 0.26 - 1" 1.1 - 3" 0 - 3"

0.41 0.99 9.27 10.67

> 3" sound > 3" rotten > 3" total Grand Total

59.73 0.92 60.64 71.32

% ground covered by fuels 15

Average fuels height (in.) 2.3

Average duff depth (in.) 2.0

Average litter depth (in.) 0.7

INDIVIDUAL TREE MARK IN MIXED CONIFER WITH SLASH TREATMENT SPECIFIED AS LOP AND SCATTER (10B)

PLOT DATA

Basal Area (ft2/ac) by Species

FUEL LOADING (tons/ac)

OTHER FUELS DATA

0

10

20

30

40

50

60

70

<.25" .25"-1" 1"-3" >3" sound >3" rotten

Size class

Tons/acr

e
USDA Forest Service Gen. Tech. Rep. RMRS-GTR-172. 2006 6
USDA Forest Service Gen. Tech. Rep. RMRS-GTR-172. 2006 

Plot utmx utmy Canopy Average Tree

Closure (%) Height (ft.)

55 391350 4560332 49 78

Total aspen spruce subalpine fir lodgepole pine

73 0 58 11 4

0 - 0.25" 0.26 - 1" 1.1 - 3" 0 - 3"

0.43 0.97 12.13 13.54

> 3" sound > 3" rotten > 3" total Grand Total

62.65 21.72 84.37 97.91

% ground covered by fuels 17

Average fuels height (in.) 6.0

Average duff depth (in.) 1.7

Average litter depth (in.) 0.3

INDIVIDUAL TREE MARK IN MIXED CONIFER WITH SLASH TREATMENT SPECIFIED AS LOP AND SCATTER (10C)

PLOT DATA

Basal Area (ft2/ac) by Species

FUEL LOADING (tons/ac)

OTHER FUELS DATA

0

10

20

30

40

50

60

70

<.25" .25"-1" 1"-3" >3" sound >3" rotten

Size class

Tons/acr

e

USDA Forest Service Gen. Tech. Rep. RMRS-GTR-172. 2006 

CATEGORY 11

Older regenerated lodgepole pine stands
USDA Forest Service Gen. Tech. Rep. RMRS-GTR-172. 2006 7
USDA Forest Service Gen. Tech. Rep. RMRS-GTR-172. 2006 

Plot utmx utmy Canopy Average Tree

Closure (%) Height (ft.)

102 373907 4585092 N/A N/A

Total aspen spruce subalpine fir lodgepole pine

N/A N/A N/A N/A N/A

0 - 0.25" 0.26 - 1" 1.1 - 3" 0 - 3"

0.07 0.59 1.54 2.20

> 3" sound > 3" rotten > 3" total Grand Total

9.80 3.91 13.71 15.91

% ground covered by fuels 1

Average fuels height (in.) 1.0

Average duff depth (in.) 0.6

Average litter depth (in.) 0.9

OLDER REGENERATED LODGEPOLE PINE STANDS (11A)

PLOT DATA

Basal Area (ft2/ac) by Species

FUEL LOADING (tons/ac)

OTHER FUELS DATA

0

2

4

6

8

10

<.25" .25"-1" 1"-3" >3" sound >3" rotten

Size class

Tons/acr

e

USDA Forest Service Gen. Tech. Rep. RMRS-GTR-172. 2006 

CATEGORY 12

Older regenerated spruce-fir stands
USDA Forest Service Gen. Tech. Rep. RMRS-GTR-172. 2006 7
USDA Forest Service Gen. Tech. Rep. RMRS-GTR-172. 2006 7

Plot utmx utmy Canopy Average Tree

Closure (%) Height (ft.)

73 377760 4588828 92 62

Total aspen spruce subalpine fir lodgepole pine

189 0 16 60 113

0 - 0.25" 0.26 - 1" 1.1 - 3" 0 - 3"

0.29 0.39 3.06 3.74

> 3" sound > 3" rotten > 3" total Grand Total

5.99 5.31 11.30 15.04

% ground covered by fuels 5

Average fuels height (in.) 2.7

Average duff depth (in.) 0.7

Average litter depth (in.) 0.0

OLDER RENERATED SPRUCE-FIR STANDS (12A)

PLOT DATA

Basal Area (ft2/ac) by Species

FUEL LOADING (tons/ac)

OTHER FUELS DATA

0

5

10

15

20

25

30

35

<.25" .25"-1" 1"-3" >3" sound >3" rotten

Size class

Tons/acr

e
USDA Forest Service Gen. Tech. Rep. RMRS-GTR-172. 2006 7
USDA Forest Service Gen. Tech. Rep. RMRS-GTR-172. 2006 

Plot utmx utmy Canopy Average Tree

Closure (%) Height (ft.)

67 398802 4572982 76 63

Total aspen spruce subalpine fir lodgepole pine

169 0 120 44 4

0 - 0.25" 0.26 - 1" 1.1 - 3" 0 - 3"

0.72 3.36 10.77 14.85

> 3" sound > 3" rotten > 3" total Grand Total

20.86 4.80 25.66 40.51

% ground covered by fuels 6

Average fuels height (in.) 2.7

Average duff depth (in.) 2.7

Average litter depth (in.) 1.0

OLDER RENERATED SPRUCE-FIR STANDS (12B)

PLOT DATA

Basal Area (ft2/ac) by Species

FUEL LOADING (tons/ac)

OTHER FUELS DATA

0

5

10

15

20

25

30

35

<.25" .25"-1" 1"-3" >3" sound >3" rotten

Size class

Tons/acr

e
USDA Forest Service Gen. Tech. Rep. RMRS-GTR-172. 2006 8
USDA Forest Service Gen. Tech. Rep. RMRS-GTR-172. 2006 

Plot utmx utmy Canopy Average Tree

Closure (%) Height (ft.)

59 384372 4557677 97 93

Total aspen spruce subalpine fir lodgepole pine

211 0 133 49 29

0 - 0.25" 0.26 - 1" 1.1 - 3" 0 - 3"

0.70 0.98 15.21 16.88

> 3" sound > 3" rotten > 3" total Grand Total

33.35 13.78 47.12 64.01

% ground covered by fuels 11

Average fuels height (in.) 3.0

Average duff depth (in.) 2.3

Average litter depth (in.) 0.3

OLDER RENERATED SPRUCE-FIR STANDS (12C)

PLOT DATA

Basal Area (ft2/ac) by Species

FUEL LOADING (tons/ac)

OTHER FUELS DATA

0

5

10

15

20

25

30

35

<.25" .25"-1" 1"-3" >3" sound >3" rotten

Size class

Tons/acr

e

USDA Forest Service Gen. Tech. Rep. RMRS-GTR-172. 2006 

CATEGORY 13

Old growth in lodgepole pine
USDA Forest Service Gen. Tech. Rep. RMRS-GTR-172. 2006 
USDA Forest Service Gen. Tech. Rep. RMRS-GTR-172. 2006 

Plot utmx utmy Canopy Average Tree

Closure (%) Height (ft.)

48 408240 4546993 86 37

Total aspen spruce subalpine fir lodgepole pine

140 0 0 0 140

0 - 0.25" 0.26 - 1" 1.1 - 3" 0 - 3"

0.24 0.58 0.00 0.83

> 3" sound > 3" rotten > 3" total Grand Total

0.00 0.00 0.00 0.83

% ground covered by fuels 3

Average fuels height (in.) 0.0

Average duff depth (in.) 0.0

Average litter depth (in.) 0.0

OLD GROWTH IN LODGEPOLE PINE (13A)

OTHER FUELS DATA

PLOT DATA

Basal Area (ft2/ac) by Species

FUEL LOADING (tons/ac)

0

5

10

15

20

25

30

35

<.25" .25"-1" 1"-3" >3" sound >3" rotten

Size class

Tons/acre
USDA Forest Service Gen. Tech. Rep. RMRS-GTR-172. 2006 8
USDA Forest Service Gen. Tech. Rep. RMRS-GTR-172. 2006 8

Plot utmx utmy Canopy Average Tree

Closure (%) Height (ft.)

15 394805 4541319 84 44

Total aspen spruce subalpine fir lodgepole pine

149 0 0 0 149

0 - 0.25" 0.26 - 1" 1.1 - 3" 0 - 3"

0.14 0.40 3.10 3.64

> 3" sound > 3" rotten > 3" total Grand Total

4.94 0.00 4.94 8.58

% ground covered by fuels 1

Average fuels height (in.) 0.7

Average duff depth (in.) 0.8

Average litter depth (in.) 0.2

OLD GROWTH IN LODGEPOLE PINE (13B)

PLOT DATA

Basal Area (ft2/ac) by Species

FUEL LOADING (tons/ac)

OTHER FUELS DATA

0

5

10

15

20

25

30

35

<.25" .25"-1" 1"-3" >3" sound >3" rotten

Size class

Tons/acre
USDA Forest Service Gen. Tech. Rep. RMRS-GTR-172. 2006 8
USDA Forest Service Gen. Tech. Rep. RMRS-GTR-172. 2006 

Plot utmx utmy Canopy Average Tree

Closure (%) Height (ft.)

41 402561 4547424 77 61

Total aspen spruce subalpine fir lodgepole pine

140 0 0 0 140

0 - 0.25" 0.26 - 1" 1.1 - 3" 0 - 3"

0.36 0.39 3.03 3.78

> 3" sound > 3" rotten > 3" total Grand Total

16.75 1.70 18.45 22.23

% ground covered by fuels 5

Average fuels height (in.) 1.3

Average duff depth (in.) 1.0

Average litter depth (in.) 0.3

OLD GROWTH IN LODGEPOLE PINE (13C)

PLOT DATA

Basal Area (ft2/ac) by Species

FUEL LOADING (tons/ac)

OTHER FUELS DATA

0

5

10

15

20

25

30

35

<.25" .25"-1" 1"-3" >3" sound >3" rotten

Size class

Tons/acre
USDA Forest Service Gen. Tech. Rep. RMRS-GTR-172. 2006 
USDA Forest Service Gen. Tech. Rep. RMRS-GTR-172. 2006

Plot utmx utmy Canopy Average Tree

Closure (%) Height (ft.)

12 397357 4562015 76 59

Total aspen spruce subalpine fir lodgepole pine

149 0 0 0 149

0 - 0.25" 0.26 - 1" 1.1 - 3" 0 - 3"

0.14 0.19 3.03 3.37

> 3" sound > 3" rotten > 3" total Grand Total

23.82 8.27 32.10 35.46

% ground covered by fuels 9

Average fuels height (in.) 0.0

Average duff depth (in.) 0.0

Average litter depth (in.) 0.8

OLD GROWTH IN LODGEPOLE PINE (13D)

PLOT DATA

Basal Area (ft2/ac) by Species

FUEL LOADING (tons/ac)

OTHER FUELS DATA

0

5

10

15

20

25

30

35

<.25" .25"-1" 1"-3" >3" sound >3" rotten

Size class

Tons/acr

e
USDA Forest Service Gen. Tech. Rep. RMRS-GTR-172. 2006 
USDA Forest Service Gen. Tech. Rep. RMRS-GTR-172. 2006

Plot utmx utmy Canopy Average Tree

Closure (%) Height (ft.)

54 400884 4545582 89 28

Total aspen spruce subalpine fir lodgepole pine

102 0 7 11 84

0 - 0.25" 0.26 - 1" 1.1 - 3" 0 - 3"

0.18 0.78 4.54 5.50

> 3" sound > 3" rotten > 3" total Grand Total

22.46 33.72 56.18 61.68

% ground covered by fuels 16

Average fuels height (in.) 2.7

Average duff depth (in.) 0.7

Average litter depth (in.) 0.3

OLD GROWTH IN LODGEPOLE PINE (13E)

PLOT DATA

Basal Area (ft2/ac) by Species

FUEL LOADING (tons/ac)

OTHER FUELS DATA

0

5

10

15

20

25

30

35

<.25" .25"-1" 1"-3" >3" sound >3" rotten

Size class

Tons/acre

USDA Forest Service Gen. Tech. Rep. RMRS-GTR-172. 2006

CATEGORY 14

Old growth in spruce-fir
USDA Forest Service Gen. Tech. Rep. RMRS-GTR-172. 2006 
USDA Forest Service Gen. Tech. Rep. RMRS-GTR-172. 2006 

Plot utmx utmy Canopy Average Tree

Closure (%) Height (ft.)

85 396115 4581219 81 61

Total aspen spruce subalpine fir lodgepole pine

282 0 160 122 0

0 - 0.25" 0.26 - 1" 1.1 - 3" 0 - 3"

0.47 0.00 0.00 0.47

> 3" sound > 3" rotten > 3" total Grand Total

0.57 0.00 0.57 1.04

% ground covered by fuels 1

Average fuels height (in.) 0.3

Average duff depth (in.) 1.0

Average litter depth (in.) 0.3

OLD GROWTH IN SPRUCE-FIR (14A)

PLOT DATA

Basal Area (ft2/ac) by Species

FUEL LOADING (tons/ac)

OTHER FUELS DATA

0

10

20

30

40

50

60

70

80

<.25" .25"-1" 1"-3" >3" sound >3" rotten

Size class

Tons/acr

e
USDA Forest Service Gen. Tech. Rep. RMRS-GTR-172. 2006 
USDA Forest Service Gen. Tech. Rep. RMRS-GTR-172. 2006

Plot utmx utmy Canopy Average Tree

Closure (%) Height (ft.)

78 379087 4573062 72 78

Total aspen spruce subalpine fir lodgepole pine

136 9 36 40 51

0 - 0.25" 0.26 - 1" 1.1 - 3" 0 - 3"

0.25 0.39 3.07 3.71

> 3" sound > 3" rotten > 3" total Grand Total

18.12 0.00 18.12 21.83

% ground covered by fuels 5

Average fuels height (in.) 2.3

Average duff depth (in.) 1.3

Average litter depth (in.) 1.0

OLD GROWTH IN SPRUCE-FIR (14B)

PLOT DATA

Basal Area (ft2/ac) by Species

FUEL LOADING (tons/ac)

OTHER FUELS DATA

0

10

20

30

40

50

60

70

80

<.25" .25"-1" 1"-3" >3" sound >3" rotten

Size class

Tons/acr

e
USDA Forest Service Gen. Tech. Rep. RMRS-GTR-172. 2006 1
USDA Forest Service Gen. Tech. Rep. RMRS-GTR-172. 2006 

Plot utmx utmy Canopy Average Tree

Closure (%) Height (ft.)

13 403057 4559688 89 64

Total aspen spruce subalpine fir lodgepole pine

193 0 129 64 0

0 - 0.25" 0.26 - 1" 1.1 - 3" 0 - 3"

0.33 1.78 1.54 3.64

> 3" sound > 3" rotten > 3" total Grand Total

20.76 13.76 34.52 38.16

% ground covered by fuels 11

Average fuels height (in.) 1.0

Average duff depth (in.) 3.7

Average litter depth (in.) 1.3

OLD GROWTH IN SPRUCE-FIR (14C)

PLOT DATA

Basal Area (ft2/ac) by Species

FUEL LOADING (tons/ac)

OTHER FUELS DATA

0

10

20

30

40

50

60

70

80

<.25" .25"-1" 1"-3" >3" sound >3" rotten

Size class

Tons/acr

e
USDA Forest Service Gen. Tech. Rep. RMRS-GTR-172. 2006 1
USDA Forest Service Gen. Tech. Rep. RMRS-GTR-172. 2006 

Plot utmx utmy Canopy Average Tree

Closure (%) Height (ft.)

64 392050 4567488 78 65

Total aspen spruce subalpine fir lodgepole pine

198 0 122 0 76

0 - 0.25" 0.26 - 1" 1.1 - 3" 0 - 3"

0.67 3.89 19.73 24.29

> 3" sound > 3" rotten > 3" total Grand Total

28.51 9.19 37.70 61.99

% ground covered by fuels 11

Average fuels height (in.) 12.0

Average duff depth (in.) 1.7

Average litter depth (in.) 0.3

OLD GROWTH IN SPRUCE-FIR (14D)

PLOT DATA

Basal Area (ft2/ac) by Species

FUEL LOADING (tons/ac)

OTHER FUELS DATA

0

10

20

30

40

50

60

70

80

<.25" .25"-1" 1"-3" >3" sound >3" rotten

Size class

Tons/acr

e
USDA Forest Service Gen. Tech. Rep. RMRS-GTR-172. 2006 
USDA Forest Service Gen. Tech. Rep. RMRS-GTR-172. 2006 

Plot utmx utmy Canopy Average Tree

Closure (%) Height (ft.)

21 396292 4591526 74 62

Total aspen spruce subalpine fir lodgepole pine

173 0 76 89 9

0 - 0.25" 0.26 - 1" 1.1 - 3" 0 - 3"

0.20 0.59 7.68 8.48

> 3" sound > 3" rotten > 3" total Grand Total

74.51 0.41 74.92 83.40

% ground covered by fuels 11

Average fuels height (in.) 0.0

Average duff depth (in.) 1.3

Average litter depth (in.) 0.2

FUEL LOADING (tons/ac)

OTHER FUELS DATA

OLD GROWTH IN SPRUCE-FIR (14E)

PLOT DATA

Basal Area (ft2/ac) by Species

0

10

20

30

40

50

60

70

80

<.25" .25"-1" 1"-3" >3" sound >3" rotten

Size class

Tons/acr

e
The U.S. Department of Agriculture (USDA) prohibits discrimination in all its 

programs and activities on the basis of race, color, national origin, age, disability, 

and where applicable, sex, marital status, familial status, parental status, religion, 

sexual orientation, genetic information, political beliefs, reprisal, or because all 

or part of an individual’s income is derived from any public assistance program. 

(Not all prohibited bases apply to all programs.) Persons with disabilities who 

require alternative means for communication of program information (Braille, 

large print, audiotape, etc.) should contact USDA’s TARGET Center at (202) 

720-2600 (voice and TDD).

	 To file a complaint of discrimination, write to USDA, Director, Office of Civil

Rights, 1400 Independence Avenue, S.W., Washington, DC 20250-9410, or call 

(800) 795-3272 (voice) or (202) 720-6382 (TDD). USDA is an equal opportunity 

provider and employer.

RMRS

ROCKY MOUNTAIN RESEARCH STATION