March 2019

DRAFT

Volume 3: Part 2, Maps for Chapter 3

Prepared by: 

US Department of the Interior

Bureau of Land Management

In Cooperation with: 

State of Alaska

US Fish and Wildlife Service

Native Village of Chuathbaluk

Estimated Lead Agency Total Costs 

Associated with Developing and 

Producing this EIS: $5,941,000

U.S. Department of the Interior 

Bureau of Land Management 

Bering Sea - Western Interior

Resource Management Plan and Environmental Impact Statement
Mission

To sustain the health, diversity, and productivity of the

public lands for the use and enjoyment of present and 

future generations.

CoverPhoto:Old Woman Mountain, located on the 

Iditarod National Historic Trail between the Yukon River

and the Bering Sea. Photo by Kevin Keeler (BLM).

DOI-BLM-AK-A010-2013-0039-RMP-EIS 

BLM/AK/PL-19/004+1610+A020
Bering Sea-Western Interior 

Draft Resource Management Plan and 

Environmental Impact Statement

Volume 3: Maps, Part 2 (Maps for Chapter 3)

Prepared by:

U.S. Department of the Interior

Bureau of Land Management

Anchorage, Alaska

In cooperation with:

State of Alaska

US Fish and Wildlife Service 

Native Village of Chuathbaluk 

March 2019

Estimated Lead Agency 

Total Costs Associated with Developing 

and Producing this EIS: $5,941,000
BSWI Draft RMP/EIS Volume 3: Maps

i 

Table of Contents

Volume 1 – Executive Summary, Chapters 1-3, and Appendices A-L 

Volume 2 – Appendices M-O 

Volume 3 – Maps

Volume 3 – Part 2: List of Maps for Chapter 3

Chapter 3. Affected Environment and Environmental Consequences 

Map 3.2.2-1A: January Temperature (°C): A2 Scenario – Climate Change

Map 3.2.2-1B: January Temperature (°C): A2 Scenario Divergence from Current – Climate Change

Map 3.2.2-2A: July Temperature (°C): A2 Scenario – Climate Change

Map 3.2.2-2B: July Temperature (°C): A2 Scenario Divergence from Current – Climate Change

Map 3.2.2-3A: Average Total Annual Precipitation (mm/year): A2 Scenario – Climate Change

Map 3.2.2-3B: Average Total Annual Precipitation (mm/year): A2 Scenario Divergence from Current

– Climate Change

Map 3.2.2-4A: Average Summer Precipitation (mm): A2 Scenario – Climate Change

Map 3.2.2-4B: Average Summer Precipitation (mm): A2 Scenario Divergence from Current – 

Climate Change 

Map 3.2.2-5A: Average Winter Precipitation (mm): A2 Scenario– Climate Change

Map 3.2.2-5B: Average Winter Precipitation (mm): A2 Scenario Divergence from Current– Climate 

Change 

Map 3.2.2-6: Day of Freeze: A2 Scenario – Climate Change

Map 3.2.2-7: Day of Thaw: A2 Scenario – Climate Change

Map 3.2.3-1: Physiographic Regions – Geology and Soils 

Map 3.2.3-2: Generalized Geology – Geology and Soils 

Map 3.2.3-3: Soil Map Units – Geology and Soils 

Map 3.2.3-4: Geologic Groupings with Potential Fossil Occurrences – Geology and Soils

Map 3.2.4-1: Groundwater Aquifers – Water Resources

Map 3.2.4-2: USGS Delineated HUC 8/Level 4 Watershed Subbasins – Water Resources

Map 3.2.5-1: Anadromous Waters Spawning Streams – Fisheries

Map 3.2.5-2: Pacific Salmon Essential Fish Habitat and Spawning Habitat – Fisheries

Map 3.2.5-3: Watershed Boundaries and Hydrography – Fisheries

Map 3.2.5-4: Anadromous Waters and Spawning Habitat – Fisheries

Map 3.2.5-5: HUC 6/Level 3 Watersheds and Locatable Mineral Potential – Fisheries

Map 3.2.6-1: Vegetation Communities – Vegetation 

Map 3.2.6-2: BLM Special Status Plants – Vegetation

Map 3.2.7-1: USGS Bird Conservation Areas – Wildlife and Special Status

Map 3.2.7-2: Audubon Important Bird Areas – Wildlife and Special Status 

Map 3.2.7-3: Innoko Bottoms and Connectivity Corridors – Wildlife and Special Status

Map 3.2.7-4: Caribou Herd Ranges - Seasonal Distribution – Wildlife and Special Status

Map 3.2.7-5: Moose Habitat – Wildlife and Special Status

Map 3.2.7-6: Bison, Dall Sheep, & Muskox Habitat – Wildlife and Special Status

Map 3.2.7-7: Potential Bat Habitat – Wildlife and Special Status

Map 3.2.8-1: Nonnative Invasive Terrestrial Plant Occurrences – Wildlife and Special Status

Map 3.2.9-1: Historical Fire Occurrences – Wildland Fire

Map 3.2.9-2: Historic Vegetation Fire Regimes – Wildland Fire

Map 3.2.9-3: Fuel Models – Wildland Fire 

Map 3.2.11-1: Potential Fossil Yield Classification – Paleontological Resources

Map 3.2.12-1: Scenic Quality Rating – Visual Resources
Volume 3: Maps BSWI Draft RMP/EIS

ii

Map 3.2.12-2: Sensitivity Level Rating – Visual Resources

Map 3.2.12-3: Visual Distance Zones – Visual Resources

Map 3.2.12-4: Visual Resource Inventory Class – Visual Resources

Map 3.2.13-1: Inventoried Lands with Wilderness Characteristics – Lands with Wilderness 

Characteristics

Map 3.3.2-1: Permitted Grazing – Grazing 

Map 3.3.2-2: Suitable Grazing Habitat – Grazing

Map 3.3.2-3: Suitable Grazing Habitat, Stuart Range, Stebbins, & St. Michael – Grazing

Map 3.3.3-1: Type and Distribution of Mineral Occurrences – Locatable and Salable Minerals

Map 3.3.3-2: Mining Districts and Mining Claims – Locatable and Salable Minerals

Map 3.3.3-3: Locatable Mineral Potential – Locatable and Salable Minerals

Map 3.3.3-4: Placer Mining Areas and Lode Deposits with Significant Production – Locatable and 

Salable Minerals

Map 3.3.4-1: Coal and Coal Gas Potential – Leasable Minerals

Map 3.3.4-2: Oil and Gas Potential Areas – Leasable Minerals

Map 3.3.4-3: Geothermal Potential – Leasable Minerals

Map 3.3.5-1: Public Land Orders – Lands and Realty

Map 3.3.7-1: Transportation Networks – Travel and Transportation

Map 3.3.8-1: Wind Resources – Renewable Energy

Map 3.3.8-2: Forest Biomass – Renewable Energy

Map 3.3.8-3: Peat Occurrences – Renewable Energy

Map 3.3.8-4: Photovoltaic Solar Resources – Renewable Energy

Map 3.4.1-1: Existing Areas of Critical Environmental Concern (ACECs) – ACEC

Map 3.4.1-2: Potential ACECs (Existing and Nominated ACECs that Meet Relevance & Importance)

– ACEC

Map 3.4.2-1: Iditarod National Historic Trail – National Trails

Map 3.4.3-1: Existing and Eligible Wild & Scenic Rivers – Wild & Scenic Rivers (WSR)

Map 3.5.1-1: Social and Economic Conditions – Socioeconomic Regions and Communities 

Map 3.5.2-1: Federally Permitted Subsistence Hunts, Subsistence Resources Search and Harvest 

Areas - Subsistence
BSWI Draft RMP/EIS January Temperature (°C): A2 Scenario

Climate Change 

U.S. DEPARTMENT OF THE INTERIOR | BUREAU OF LAND MANAGEMENT | ALASKA | BERING SEA- WESTERN INTERIOR RMP/EIS 

2010s

Maximum: -6.3 

Minimum: -21.6 

2050s

Maximum: -4.4 

Minimum: -19.7 

2020s

Maximum: -5.6 

Minimum: -20.9 

2060s

Maximum: -3.0 

Minimum: -18.7 

January Temperature (°C)

Colder than -20.0° 

-20.0° to -18.0°

-18.0° to -16.0°

-16.0° to -14.0°

-14.0° to -12.0°

-12.0° to -10.0°

-10.0° to -8.0°

-8.0° to -6.0°

-6.0° to -4.0°

Warmer than -4.0° 

Data Source: BLM GIS 2017;

SNAP 2012 

No warranty is made by the Bureau of Land

Management as to the accuracy, reliability, or 

completeness of these data for individual or 

aggregate use with other data. Original data 

were compiled from various sources. This

information may not meet National Map Accuracy 

Standards. This product was developed through 

digital means and may be updated without 

notification. 

0 25 50 Miles 

3.2.2-1A 
January Temperature (°C): A2 Scenario Divergence from Current

Climate Change 

U.S. DEPARTMENT OF THE INTERIOR | BUREAU OF LAND MANAGEMENT | ALASKA | BERING SEA- WESTERN INTERIOR RMP/EIS 

2010s from 2060s Divergence 

Maximum Change: 4.0° C 

Minimum Change: 2.4° C 

0 25 50 Miles 

Change in January

Temperature (°C)

Between 2010s and

2060s 

2.4° - 2.7° 

2.7° - 3.0° 

3.0° - 3.3° 

3.3° - 3.5° 

3.5° - 4.0° 

Data Source: BLM GIS 2017, 2018;

SNAP 2012 

No warranty is made by the Bureau of Land

Management as to the accuracy, reliability, or 

completeness of these data for individual or 

aggregate use with other data. Original data 

were compiled from various sources. This

information may not meet National Map Accuracy 

Standards. This product was developed through 

digital means and may be updated without 

notification. 

3.2.2-1B 

BSWI Draft RMP/EIS 
July Temperature (°C): A2 Scenario

Climate Change 

U.S. DEPARTMENT OF THE INTERIOR | BUREAU OF LAND MANAGEMENT | ALASKA | BERING SEA- WESTERN INTERIOR RMP/EIS 

2010s

Maximum: 17.1 

Minimum: -0.9 

2050s

Maximum: 17.5 

Minimum: -0.5 

2020s

Maximum: 17.2 

Minimum: -1.0 

2060s

Maximum: 18.3 

Minimum: 0.1 

July Temperature (°C)

Colder than 10.0° 

10.0° to 11.0° 

11.0° to 12.0° 

12.0° to 13.0° 

13.0° to 14.0° 

14.0° to 15.0° 

15.0° to 16.0° 

16.0° to 17.0° 

17.0° to 18.0° 

Warmer than 18.0° 

Data Source: BLM GIS 2017;

SNAP 2012 

No warranty is made by the Bureau of Land

Management as to the accuracy, reliability, or 

completeness of these data for individual or 

aggregate use with other data. Original data 

were compiled from various sources. This

information may not meet National Map Accuracy 

Standards. This product was developed through 

digital means and may be updated without 

notification. 

0 25 50 Miles 

3.2.2-2A 

BSWI Draft RMP/EIS 
July Temperature (°C): A2 Scenario Divergence from Current

Climate Change 

U.S. DEPARTMENT OF THE INTERIOR | BUREAU OF LAND MANAGEMENT | ALASKA | BERING SEA- WESTERN INTERIOR RMP/EIS 

Change in Jul 2010s from 2060s Divergence Temperature (

y

°C)

Between 2010s and Maximum Change: 1.6° C 2060s 

Minimum Change: 0.9° C 0.9° - 1.1° 

1.1° - 1.2° 

1.2° - 1.3° 

1.3° - 1.6° 

0 25 50 Miles 

Data Source: BLM GIS 2017, 2018;

SNAP 2012 

No warranty is made by the Bureau of Land

Management as to the accuracy, reliability, or 

completeness of these data for individual or 

aggregate use with other data. Original data 

were compiled from various sources. This

information may not meet National Map Accuracy 

Standards. This product was developed through 

digital means and may be updated without 

notification. 

3.2.2-2B 

BSWI Draft RMP/EIS 
Average Total Annual Precipitation (mm/year): A2 Scenario

Climate Change 

U.S. DEPARTMENT OF THE INTERIOR | BUREAU OF LAND MANAGEMENT | ALASKA | BERING SEA- WESTERN INTERIOR RMP/EIS 

Precipitation (mm/year)

Less than 400 

400 - 450 

450 - 500 

2010s 2020s Maximum: 1,854 

Minimum: 301 Maximum: 1,970 

Minimum: 321 500 - 550 

550 - 600 

600 - 650 

650 - 700 

700 - 800 

800 - 900 

Greater than 900 

2050s 

Maximu

2060s 

Maximum:

m: 2,065 Minimum:

 2,112 

350 

Minimum: 344 

Data Source: BLM GIS 2017;

SNAP 2012 

No warranty is made by the Bureau of Land

Management as to the accuracy, reliability, or 

completeness of these data for individual or 

aggregate use with other data. Original data 

were compiled from various sources. This

information may not meet National Map Accuracy 

Standards. This product was developed through 

digital means and may be updated without 

notification. 

0 25 50 Miles 

3.2.2-3A 

BSWI Draft RMP/EIS 
Average Total Annual Precipitation (mm/year): A2 Scenario Divergence from Current

Climate Change 

U.S. DEPARTMENT OF THE INTERIOR | BUREAU OF LAND MANAGEMENT | ALASKA | BERING SEA- WESTERN INTERIOR RMP/EIS 

2010s from 2060s Divergence 

Maximum Change: 260 mm/year 

Minimum Change: 37 mm/year 

Change in Precipitation 

(mm/year) Between 

2010s and 2060s 

37 - 65 

65 - 75 

75 - 95 

95-130

130 - 260 

0 25 50 Miles 

Data Source: BLM GIS 2017, 2018;

SNAP 2012 

No warranty is made by the Bureau of Land

Management as to the accuracy, reliability, or 

completeness of these data for individual or 

aggregate use with other data. Original data 

were compiled from various sources. This

information may not meet National Map Accuracy 

Standards. This product was developed through 

digital means and may be updated without 

notification. 

3.2.2-3B 

BSWI Draft RMP/EIS 
Average Summer Precipitation (mm): A2 Scenario

Climate Change 

U.S. DEPARTMENT OF THE INTERIOR | BUREAU OF LAND MANAGEMENT | ALASKA | BERING SEA- WESTERN INTERIOR RMP/EIS 

Precipitation (mm) 2010s 2020s Less than 150 

Maximum: 552 150 - 170 Maximum: 562 Minimum: 124 170 - 190 Minimum: 136 190 - 210 

210 - 230 

230 - 250 

250 - 300 

300- 350

350 - 500

Greater than 500

2060s 

2050s Maximum: 618 

Maximum: 609 Minimum: 139 

Minimum: 151 

Data Source: BLM GIS 2017;

SNAP 2012 

No warranty is made by the Bureau of Land

Management as to the accuracy, reliability, or 

completeness of these data for individual or 

aggregate use with other data. Original data 

were compiled from various sources. This

information may not meet National Map Accuracy 

Standards. This product was developed through 

digital means and may be updated without 

notification. 

0 25 50 Miles 

3.2.2-4A 

BSWI Draft RMP/EIS 
Average Summer Precipitation (mm): A2 Scenario Divergence from Current

Climate Change 

U.S. DEPARTMENT OF THE INTERIOR | BUREAU OF LAND MANAGEMENT | ALASKA | BERING SEA- WESTERN INTERIOR RMP/EIS 

2010s from 2060s Divergence 

Maximum Change: 79 mm 

Minimum Change: 11 mm 

0 25 50 Miles 

Change in Average

Summer Precipitation 

(mm) Between

2010s and 2060s

11 - 15 

15 - 25 

25 - 35 

35 - 50 

50 - 79 

Data Source: BLM GIS 2017, 2018;

SNAP 2012 

No warranty is made by the Bureau of Land

Management as to the accuracy, reliability, or 

completeness of these data for individual or 

aggregate use with other data. Original data 

were compiled from various sources. This

information may not meet National Map Accuracy 

Standards. This product was developed through 

digital means and may be updated without 

notification. 

3.2.2-4B 

BSWI Draft RMP/EIS 
Average Winter Precipitation (mm): A2 Scenario

Climate Change 

U.S. DEPARTMENT OF THE INTERIOR | BUREAU OF LAND MANAGEMENT | ALASKA | BERING SEA- WESTERN INTERIOR RMP/EIS 

Precipitation (mm)

Less than 65 

2010s 2020s 

Maximum: 536 Maximum: 471 65 - 80 

Minimum: 34 80 - 95 

Minimum: 41 95 - 110 

110 - 125 

125 - 140 

140 - 155 

155 - 300 

300 - 500 

Greater than 500 

2060s 

2050s Maximum: 533 

Maximum: 530 Minimum: 39 

Minimum: 41 

Data Source: BLM GIS 2017;

SNAP 2012 

No warranty is made by the Bureau of Land

Management as to the accuracy, reliability, or 

completeness of these data for individual or 

aggregate use with other data. Original data 

were compiled from various sources. This

information may not meet National Map Accuracy 

Standards. This product was developed through 

digital means and may be updated without 

notification. 

0 25 50 Miles 

3.2.2-5A 

BSWI Draft RMP/EIS 
Average Winter Precipitation (mm): A2 Scenario Divergence from Current

Climate Change 

U.S. DEPARTMENT OF THE INTERIOR | BUREAU OF LAND MANAGEMENT | ALASKA | BERING SEA- WESTERN INTERIOR RMP/EIS 

2010s from 2060s Divergence 

Maximum Change: 62 mm 

Minimum Change: 3 mm 

0 25 50 Miles 

Change in Average 

Winter Precipitation 

(mm) Between

2010s and 2060s

3 - 5 

5 - 10 

10 - 15 

15 - 25 

25 - 62 

Data Source: BLM GIS 2017, 2018;

SNAP 2012 

No warranty is made by the Bureau of Land

Management as to the accuracy, reliability, or 

completeness of these data for individual or 

aggregate use with other data. Original data 

were compiled from various sources. This

information may not meet National Map Accuracy 

Standards. This product was developed through 

digital means and may be updated without 

notification. 

3.2.2-5B 

BSWI Draft RMP/EIS 
Day of Freeze: A2 Scenario

Climate Change 

U.S. DEPARTMENT OF THE INTERIOR | BUREAU OF LAND MANAGEMENT | ALASKA | BERING SEA- WESTERN INTERIOR RMP/EIS 

Day of Freeze 2010s 2020s Always Frozen 

August 18 to 

September 23 

September 23 to 

October 7 

October 7 to 

October 27 

October 27 t

December 16

o 

Never Frozen 

2060s 

2050s 

Data Source: BLM GIS 2017;

BLM 2014 

No warranty is made by the Bureau of Land

Management as to the accuracy, reliability, or 

completeness of these data for individual or 

aggregate use with other data. Original data 

were compiled from various sources. This

information may not meet National Map Accuracy 

Standards. This product was developed through 

digital means and may be updated without 

notification. 

0 25 50 Miles 

3.2.2-6 

BSWI Draft RMP/EIS 
Day of Thaw: A2 Scenario

Climate Change 

U.S. DEPARTMENT OF THE INTERIOR | BUREAU OF LAND MANAGEMENT | ALASKA | BERING SEA- WESTERN INTERIOR RMP/EIS 

Day of Thaw 2010s 2020s March 26 - April 20 

April 20 - May 13

May 13 - July 11 

Always Frozen 

2050s 

2060s 

Data Source: BLM GIS 2017;

BLM 2014 

No warranty is made by the Bureau of Land

Management as to the accuracy, reliability, or 

completeness of these data for individual or 

aggregate use with other data. Original data 

were compiled from various sources. This

information may not meet National Map Accuracy 

Standards. This product was developed through 

digital means and may be updated without 

notification. 

0 25 50 Miles 

3.2.2-7 

BSWI Draft RMP/EIS 
Physiographic Regions 

Geology and Soils 

U.S. DEPARTMENT OF THE INTERIOR | BUREAU OF LAND MANAGEMENT | ALASKA | BERING SEA- WESTERN INTERIOR RMP/EIS 

Physiographic Regions BLM-managed Land Other Land 

Ahklun Mountains 

Alaska Range (Central

and Eastern Part)

Alaska Range 

(Southern Part)

Buckland River 

Lowland 

Holitna Lowlands 

Innoko Lowlands 

Koyukuk Flats 

Kuskokwim Mountains 

Nulato Hills

Nushagak-Big River 

Hills

Tanana-Kuskokwim

Lowland

Yukon-Kuskokwim

Coastal Lowland 

Iditarod National Historic

Trail Primary Route 

Iditarod National Historic

Trail Connecting/Side 

Trails 

Data Sources: BLM GIS 2017;

Wahrhaftig 1965 

No warranty is made by the Bureau of Land

Management as to the accuracy, reliability, or 

completeness of these data for individual or 

aggregate use with other data. Original data 

were compiled from various sources. This

information may not meet National Map Accuracy 

Standards. This product was developed through 

digital means and may be updated without 

notification. 

0 25 50 Miles 

3.2.3-1 

BSWI Draft RMP/EIS 
Generalized Geology 

Geology and Soils 

U.S. DEPARTMENT OF THE INTERIOR | BUREAU OF LAND MANAGEMENT | ALASKA | BERING SEA- WESTERN INTERIOR RMP/EIS 

Generalized Geology 

Ice 

Igneous

Metamorphic 

Sedimentary 

Unconsolidated 

Water 

Iditarod National Historic

Trail Primary Route 

Iditarod National Historic

Trail Connecting/Side 

Trails 

Data Sources: BLM GIS 2017;

Wilson et al. 2015 

No warranty is made by the Bureau of Land

Management as to the accuracy, reliability, or 

completeness of these data for individual or 

aggregate use with other data. Original data 

were compiled from various sources. This

information may not meet National Map Accuracy 

Standards. This product was developed through 

digital means and may be updated without 

notification. 

0 25 50 Miles 

3.2.3-2 

BSWI Draft RMP/EIS 
Soil Map Units

Geology and Soils 

U.S. DEPARTMENT OF THE INTERIOR | BUREAU OF LAND MANAGEMENT | ALASKA | BERING SEA- WESTERN INTERIOR RMP/EIS 

STATSGO Soil Map Unit 

Rough Mountainous 

Land 

Typic Aquiturbels-Lava 

Flows 

Typic DystrocryeptsTypic Cryorthents-Typic

Aquiturbels 

Typic Haplocryods-Typic

Aquiturbels 

Typic Histoturbels-Rough 

Mountainous LandHumic Dystrocryepts 

Typic Histoturbels-Typic

Aquiturbels 

Typic Histoturbels-Typic

Cryorthents-Typic

Aquiturbels-Ruptic Histic

Aquiturbels 

Typic Histoturbels-Typic

Dystrocryepts 

Typic Histoturbels-Typic

Eutrocryepts 

Typic Histoturbels-Typic

Fibristels 

Typic Histoturbels-Typic

Haplocryods 

Typic Histoturbels-Typic

Haplocryolls 

Typic Humicryods-Typic

Aquiturbels-Rough 

Mountainous LandHumic Lithic

Dystrocryepts 

Iditarod National Historic

Trail Primary Route 

Iditarod National Historic

Trail Connecting/Side 

Trails 

Data Sources: BLM GIS 2017;

USDA-NRCS Alaska 2011 

No warranty is made by the Bureau of Land

Management as to the accuracy, reliability, or 

completeness of these data for individual or 

aggregate use with other data. Original data 

were compiled from various sources. This

information may not meet National Map Accuracy 

Standards. This product was developed through 

digital means and may be updated without 

notification. 

0 25 50 Miles 

3.2.3-3 

BSWI Draft RMP/EIS 
Geologic Groupings with Potential Fossil Occurrences

Geology and Soils 

U.S. DEPARTMENT OF THE INTERIOR | BUREAU OF LAND MANAGEMENT | ALASKA | BERING SEA- WESTERN INTERIOR RMP/EIS 

Oc Chert of interior Alaska 

Coal-bearing Tcb sedimentary rocks 

Thi Hypabyssal intrusions 

Mzm Melanges

Nonmarine to shelf Knmt sedimentary rocks 

Kfy Flysch 

DZwp Farewell platform facies 

Mystic structural JDmc complex, undivided 

SCwbc Farewell basinal facies 

clastic rocks

Farewell basinal facies DCwbl carbonate rocks 

KJgn Gravina-Nuzotin unit

Sedimentary rocks of the 

PDms Mystic structural 

complex

Kuskokwim Group, Kk undivided 

Sedimentary rocks and TrDtz chert (Angayucham)

West-central Alaska KMm melange (Angayucham)

Marine sandstone and Kmss siltstone 

Pzls Limestone and marble

Shallow to moderate Ksmd depth sedimentary rocks 

Togiak-Tikchik Complex, KDt undivided 

Volcani

muds 

c graywacke and Kyg tone 

Kisaralik anticlinorium of

Box and others (1993) MzPzka (Togiak-Tikchik Complex) 

Calcareous sedimentary Trcs rocks

Marble and limestone of Trmls Wrangellia

Iditarod National Historic

Trail Primary Route

Iditarod National Historic

Trail Connecting/Side 

Trails 

The information shown on this map are 

sedimentary geologic groupings from the 

Geologic map of Alaska (Wilson et al. 2015)

published by USGS. This map displays 

geologic groupings that are assumed to be 

more likely than others to have a possiblitity

of fossil occurrence. 

Data Sources: BLM GIS 2017;

Wilson et al. 2015 

No warranty is made by the Bureau of Land

Management as to the accuracy, reliability, or 

completeness of these data for individual or 

aggregate use with other data. Original data 

were compiled from various sources. This

information may not meet National Map Accuracy 

Standards. This product was developed through 

digital means and may be updated without 

notification. 

0 25 50 Miles 

3.2.3-4 

BSWI Draft RMP/EIS 
Groundwater Aquifers 

Water Resources 

U.S. DEPARTMENT OF THE INTERIOR | BUREAU OF LAND MANAGEMENT | ALASKA | BERING SEA- WESTERN INTERIOR RMP/EIS 

Groundwater Aquifers BLM-managed Land Other Land 

Not a Principal

Aquifer 

Coarse-Grained 

Quaternery Deposits -

Locally Comprised 

Aquifers 

Glaciers 

Iditarod National Historic

Trail Primary Route 

Iditarod National Historic

Trail Connecting/Side Trails 

Data Sources: BLM GIS 2017;

Wilson et al. 2015; Miller et al. 1999 

No warranty is made by the Bureau of Land

Management as to the accuracy, reliability, or 

completeness of these data for individual or 

aggregate use with other data. Original data 

were compiled from various sources. This

information may not meet National Map Accuracy 

Standards. This product was developed through 

digital means and may be updated without 

notification. 

0 25 50 Miles 

3.2.4-1 

BSWI Draft RMP/EIS 
USGS Delineated HUC8/Level 4 Watershed Subbasins 

Water Resources 

U.S. DEPARTMENT OF THE INTERIOR | BUREAU OF LAND MANAGEMENT | ALASKA | BERING SEA- WESTERN INTERIOR RMP/EIS 

Selawik

Buckland Lake Huslia River 

River 

Kateel

River-Koyukuk 

Norton Bay River 

Galena-Yukon

River 

Nowitna River 

Anvik

River-Yukon

River 

Kantishna 

River 

Upper 

Unalakleet Innoko North Fork 

River Takotna Kuskokwim

River River 

Lower 

Innoko River 

South Fork 

Middle Kuskokwim Chuilnuk Fork River 

River-Yukon Kuskokwim Yentna River River River 

Yukon Delta 

Aniak 

Holitna River 

Stony River 

USGS Delineated

Watershed Subbasins 

Watershed Subbasins 

BLM-managed Lands

U.S. Fish and Wildlife

Service 

U.S. Forest Service 

National Park Service 

Native Allotment 

Native Lands (Patented 

or Interim Conveyed)

Private 

State (Patented or 

Interim Conveyed)

Water 

Iditarod National Historic

Trail Primary Route 

Iditarod National Historic

Trail Connecting/Side 

Trails 

Data Sources: BLM GIS 2017, 2018;

USGS 2014 

No warranty is made by the Bureau of Land

Management as to the accuracy, reliability, or 

completeness of these data for individual or 

aggregate use with other data. Original data 

were compiled from various sources. This

information may not meet National Map Accuracy 

Standards. This product was developed through 

digital means and may be updated without 

notification. 

Kuskokwim Delta 

0 25 50 Miles 

3.2.4-2 

BSWI Draft RMP/EIS 
Northwest

Alaska 

Unalakleet 

Middle

Yukon River 

Lower

Yukon

River 

Southwest

Alaska 

Anadromous Waters 

Catalog Rivers/Streams 

Anadromous Waters 

Catalog Lakes/Ponds 

Anadromous Waters 

Catalog Rivers/Streams 

Spawning Habitat 

Anadromous Waters 

Catalog Lakes/Ponds 

Spawning Habitat 

Watershed Boundary 

(HUC4/Level 2)

BLM-managed Lands

U.S. Fish and Wildlife

Service 

U.S. Forest Service 

National Park Service 

Native Allotment 

Native Lands (Patented 

or Interim Conveyed)

Private 

State (Patented or 

Interim Conveyed)

Water 

Iditarod National Historic

Trail Primary Route 

Iditarod National Historic

Trail Connecting/Side 

Trails 

Data Source: BLM GIS 2017, 2018;

ADF&G 2016; USGS 2016 

No warranty is made by the Bureau of Land

Management as to the accuracy, reliability, or 

completeness of these data for individual or 

aggregate use with other data. Original data 

were compiled from various sources. This

information may not meet National Map Accuracy 

Standards. This product was developed through 

digital means and may be updated without 

notification. 

0 25 50 Miles 

3.2.5-1 

Anadromous Waters Spawning Streams 

Fisheries 

U.S. DEPARTMENT OF THE INTERIOR | BUREAU OF LAND MANAGEMENT | ALASKA | BERING SEA- WESTERN INTERIOR RMP/EIS 

BSWI Draft RMP/EIS 
Northwest

Alaska 

Pacific Salmon 

River/Stream Habitat 

Pacific Salmon 

Lake/Pond Habitat 

Pacific Salmon 

River/Stream Spawning 

Habitat 

Pacific Salmon 

Lake/Pond Spawning 

Habitat 

Watershed Boundary 

(HUC4/Level 2)

BLM-managed Lands

U.S. Fish and Wildlife

Service 

U.S. Forest Service 

National Park Service 

Native Allotment 

Unalakleet 

Middle

Yukon River 

Native Lands (Patented 

or Interim Conveyed)

Private 

State (Patented or 

Interim Conveyed)

Water 

Iditarod National Historic

Trail Primary Route 

Iditarod National Historic

Trail Connecting/Side 

Trails 

Lower

Yukon

River 

Data Source: BLM GIS 2017, 2018;

ADF&G 2016; USGS 2016 

No warranty is made by the Bureau of Land

Management as to the accuracy, reliability, or 

completeness of these data for individual or 

aggregate use with other data. Original data Southwest were compiled from various sources. This

information may not meet National Map Accuracy Alaska Standards. This product was developed through 

digital means and may be updated without 

notification. 

0 25 50 Miles 

3.2.5-2 

Pacific Salmon Essential Fish Habitat and Spawning Habitat

Fisheries 

U.S. DEPARTMENT OF THE INTERIOR | BUREAU OF LAND MANAGEMENT | ALASKA | BERING SEA- WESTERN INTERIOR RMP/EIS 

BSWI Draft RMP/EIS 
Watershed Boundaries and Hydrography

Fisheries 

U.S. DEPARTMENT OF THE INTERIOR | BUREAU OF LAND MANAGEMENT | ALASKA | BERING SEA- WESTERN INTERIOR RMP/EIS 

Watershed Boundary

(HUC4/Level 2)

Lower Yukon River 

Middle Yukon River 

Northwest Alaska 

Southwest Alaska 

Rivers and Streams on

BLM-managed Lands

(32,931 miles)

Waterbodies (Lakes and 

Ponds)

Lands 

 on BLM-managed

(53,796 acres)

BLM-managed Lands 

Northwest Alaska 

Midd

R

le Yukon

iver 

Lower Yukon

River 

Southwest Alaska 

Data Source: BLM GIS 2017;

USGS 2015, 2016 

No warranty is made by the Bureau of Land

Management as to the accuracy, reliability, or 

completeness of these data for individual or 

aggregate use with other data. Original data 

were compiled from various sources. This

information may not meet National Map Accuracy 

Standards. This product was developed through 

digital means and may be updated without 

notification. 

0 25 50 Miles 

3.2.5-3 

BSWI Draft RMP/EIS 
Anadromous Waters and Spawning Habitat

Fisheries 

U.S. DEPARTMENT OF THE INTERIOR | BUREAU OF LAND MANAGEMENT | ALASKA | BERING SEA- WESTERN INTERIOR RMP/EIS 

Watershed Boundary

(HUC4/Level 2)

Lower Yukon River 

Middle Yukon River 

Northwest 

Southwest 

Anadromous Spawning 

Streams on BLM-managed

Lands (1,499 miles)

Anadromous Spawning 

Waterbodies (Lakes and 

Ponds)

Lands 

 on BLM-managed

(0.4 acre)

Northwest Alaska 

BLM-managed Lands

Anadromous Streams on 

(3,997 miles)

Midd Anadromous Waterbodies 

R

le Yukon (Lakes and Ponds)

managed Lands (34 acres

 on BLM-

) iver 

BLM-managed Lands 

Lower Yukon

River 

Southwest Alaska 

Data Source: BLM GIS 2017;

ADF&G 2016; USGS 2015, 2016 

No warranty is made by the Bureau of Land

Management as to the accuracy, reliability, or 

completeness of these data for individual or 

aggregate use with other data. Original data 

were compiled from various sources. This

information may not meet National Map Accuracy 

Standards. This product was developed through 

digital means and may be updated without 

notification. 

0 25 50 Miles 

3.2.5-4 

BSWI Draft RMP/EIS 
Northern

Seward

Peninsula 

Kobuk-Selawik

Rivers 

Locatable Mineral

Potential 

Medium 

High

Watershed Boundary

(HUC6/Level 3) 

Northwest Alaska 

Koyukuk

River 

Melozitna 

River-Yukon

River 

Middl

R

e Yukon

iver 

Watershed Boundary

(HUC4/Level 2)

Lower Yukon River 

Middle Yukon River 

Northwest Alaska 

Southwest Alaska 

BLM-managed Lands 

Melozitna 

Norton River-Yukon Tanana Sound River River 

Lower Yukon

River 

Outlet Upper 

Yukon Kuskokwim

River River 

Data Source: BLM GIS 2017;

USGS 2015, 2016 

No warranty is made by the Bureau of Land

Management as to the accuracy, reliability, or 

completeness of these data for individual or 

aggregate use with other data. Original data 

were compiled from various sources. This

Southwest Alaska information may not meet National Map Accuracy 

Standards. This product was developed through 

digital means and may be updated without 

notification. 

Lower

Kuskokwim

River 

0 25 50 Miles 

3.2.5-5 

HUC6/Level 3 Watersheds and Locatable Mineral Potential

Fisheries 

U.S. DEPARTMENT OF THE INTERIOR | BUREAU OF LAND MANAGEMENT | ALASKA | BERING SEA- WESTERN INTERIOR RMP/EIS 

BSWI Draft RMP/EIS 
Vegetation Communities 

Vegetation 

U.S. DEPARTMENT OF THE INTERIOR | BUREAU OF LAND MANAGEMENT | ALASKA | BERING SEA- WESTERN INTERIOR RMP/EIS 

Vegetation Communities 

Bareground

Dwarf Shrub 

Recently Burned 

Forest 

Herbaceous 

Low Shrub 

Non-Vascular 

Urban 

Snow/Ice 

Sparse Vegetation 

Tall Shrub 

Water 

Unalakleet 

Iditarod National Historic

Trail Primary Route 

Iditarod National Historic

Trail Connecting/Side 

Trails 

Data Source: BLM GIS 2017;

ADF&G 2016; USGS 2016 

No warranty is made by the Bureau of Land

Management as to the accuracy, reliability, or 

completeness of these data for individual or 

aggregate use with other data. Original data 

were compiled from various sources. This

information may not meet National Map Accuracy 

Standards. This product was developed through 

digital means and may be updated without 

notification. 

0 25 50 Miles 

3.2.6-1 

BSWI Draft RMP/EIS 
BLM Special Status Plants

Vegetation 

U.S. DEPARTMENT OF THE INTERIOR | BUREAU OF LAND MANAGEMENT | ALASKA | BERING SEA- WESTERN INTERIOR RMP/EIS 

Special Status Plant

Taxonomy

Douglasia beringensis

(Bering dwarf-primrose)

Koeleria asiatica 

(Eurasian Junegrass)

Smelowskia pyriformis

(Candytuft)

BLM-managed Lands

U.S. Fish and Wildlife

Service 

U.S. Forest Service 

National Park Service 

Native Allotment 

Native Lands (Patented 

or Interim Conveyed)

Private 

State (Patented or 

Interim Conveyed)

Water 

Iditarod National Historic

Trail Primary Route 

Iditarod National Historic

Trail Connecting/Side 

Trails 

Data Sources: BLM GIS 2017, 2018;

AKNHP 2013 

No warranty is made by the Bureau of Land

Management as to the accuracy, reliability, or 

completeness of these data for individual or 

aggregate use with other data. Original data 

were compiled from various sources. This

information may not meet National Map Accuracy 

Standards. This product was developed through 

digital means and may be updated without 

notification. 

0 25 50 Miles 

3.2.6-2 

BSWI Draft RMP/EIS 
USGS Bird Conservation Areas 

Wildlife and Special Status 

U.S. DEPARTMENT OF THE INTERIOR | BUREAU OF LAND MANAGEMENT | ALASKA | BERING SEA- WESTERN INTERIOR RMP/EIS BLM-managed Land Other Land 

Bird Conservation Areas 

Northwestern Interior 

Forest 

Interior Forest Lowlands & 

Uplands/Interior Bottom 

Lands/Yukon Flats

Interior Mountains/Ogilvie

Mountains 

Alaska Range/Wrangell

Mountains/Copper Plateau 

Western Alaska 

Ahklun and Kilbuck 

Mountains/Bristol

Nushagak Lowl

 Bay -

ands 

Subarctic Coastal

Plain/Seward Peninsula 

Iditarod National Historic

Trail Primary Route 

Iditarod National Historic

Trail Connecting/Side Trails 

Data Sources: BLM GIS 2017;

Gallant et al. 1995 

No warranty is made by the Bureau of Land

Management as to the accuracy, reliability, or 

completeness of these data for individual or 

aggregate use with other data. Original data 

were compiled from various sources. This

information may not meet National Map Accuracy 

Standards. This product was developed through 

digital means and may be updated without 

notification. 

0 25 50 Miles 

3.2.7-1 

BSWI Draft RMP/EIS 
Audubon Important Bird Areas 

Wildlife and Special Status 

U.S. DEPARTMENT OF THE INTERIOR | BUREAU OF LAND MANAGEMENT | ALASKA | BERING SEA- WESTERN INTERIOR RMP/EIS 

Important Bird Areas 

Single Species Core 

Areas 

Coastal Bird Areas 

Interior Bird Areas 

BLM-managed Lands

U.S. Fish and Wildlife

Service 

U.S. Forest Service 

National Park Service 

Native Allotment 

Native Lands (Patented 

or Interim Conveyed)

Private 

State (Patented or 

Interim Conveyed)

Water 

Iditarod National Historic

Trail Primary Route 

Iditarod National Historic

Trail Connecting/Side Yukon Trails

River

Coastal Stebbins-St.

Michael 

Yukon

Ri

De

ver

lta 

Yukon Ri

Coasta

ver

l 

Andreafsky Iditarod River 

Wilderness Lowlands 

Kuskokwim

Ri

De

ver

lta 

0 25 50 Miles 

Kuskokwim Bay 3.2.7-2 

Central

Yukon-Kuskokwim 

Cape

Vancouver

Marine 

Turquoise 

Lake 

Data Sources: BLM GIS 2017, 2018;

Audubon 2014, 2015 

No warranty is made by the Bureau of Land

Management as to the accuracy, reliability, or 

completeness of these data for individual or 

aggregate use with other data. Original data 

were compiled from various sources. This

information may not meet National Map Accuracy 

Standards. This product was developed through 

digital means and may be updated without 

notification. 

BSWI Draft RMP/EIS 
Innoko Bottoms and Connectivity Corridors 

Wildlife and Special Status 

U.S. DEPARTMENT OF THE INTERIOR | BUREAU OF LAND MANAGEMENT | ALASKA | BERING SEA- WESTERN INTERIOR RMP/EIS 

Connectivity Corridors 

Most Permeable:

0-1%

Wider Linkage:

2-5%

Proposed Innoko Bottoms 

Priority Wildlife Habitat Area 

BLM-managed Lands

U.S. Fish and Wildlife

Service 

U.S. Forest Service 

National Park Service 

Native Allotment 

Native Lands (Patented 

or Interim Conveyed)

Private 

State (Patented or 

Interim Conveyed)

Water 

Iditarod National Historic

Trail Primary Route 

Iditarod National Historic

Trail Connecting/Side 

Trails 

Data Sources: BLM GIS 2012, 2017, 

2018; USFWS 2015 

No warranty is made by the Bureau of Land

Management as to the accuracy, reliability, or 

completeness of these data for individual or 

aggregate use with other data. Original data 

were compiled from various sources. This

information may not meet National Map Accuracy 

Standards. This product was developed through 

digital means and may be updated without 

notification. 

0 25 50 Miles 

3.2.7-3 

BSWI Draft RMP/EIS 
Caribou Herd Ranges - Seasonal Distribution 

Wildlife and Special Status 

U.S. DEPARTMENT OF THE INTERIOR | BUREAU OF LAND MANAGEMENT | ALASKA | BERING SEA- WESTERN INTERIOR RMP/EIS 

Caribou Herd 

Total Range 

Summer

Range

Winter 

Range 

Calving 

Ground 

BLM-managed Lands

U.S. Fish and Wildlife

Service 

U.S. Forest Service 

National Park Service 

Native Allotment 

Native Lands (Patented 

or Interim Conveyed)

Private 

Western 

Arctic 

Sunshine 

Mountains 

Denali 

State (Patented or 

Interim Conveyed)

Water 

Iditarod National Historic

Trail Primary Route 

Iditarod National Historic

Trail Connecting/Side 

Trails 

Tonzona 

Beaver 

Mountains 

FarewellBig River 

Rainy 

Pass 

Data Sources: BLM GIS 2017, 2018;

ADF&G 2008 

Mulchatna 

No warranty is made by the Bureau of Land

Management as to the accuracy, reliability, or 

completeness of these data for individual or 

aggregate use with other data. Original data 

were compiled from various sources. This

information may not meet National Map Accuracy 

Standards. This product was developed through 

digital means and may be updated without 

notification. 

0 25 50 Miles 

3.2.7-4 

BSWI Draft RMP/EIS 
Moose Habitat

Wildlife and Special Status 

U.S. DEPARTMENT OF THE INTERIOR | BUREAU OF LAND MANAGEMENT | ALASKA | BERING SEA- WESTERN INTERIOR RMP/EIS 

Tatina River 

South Fork Ku

River skokw

Moose Habitat Areas BLM-managed Land Other Land 

General

Distribution 

Known Calving 

Concentrations 

Known Rutting 

Concentrations 

Known Winter 

Concentrations 

Iditarod National Historic Trail

Primary Route 

Iditarod National Historic Trail

Connecting/Side Trails 

Data Sources: BLM GIS 2017;

AKNHP 2014 

No warranty is made by the Bureau of Land

Management as to the accuracy, reliability, or 

completeness of these data for individual or 

aggregate use with other data. Original data 

were compiled from various sources. This

information may not meet National Map Accuracy 

Standards. This product was developed through 

digital means and may be updated without 

notification. 

m i

0 25 50 Miles 

3.2.7-5 

BSWI Draft RMP/EIS 
Bison, Dall Sheep, & Muskox Habitat

Wildlife and Special Status 

U.S. DEPARTMENT OF THE INTERIOR | BUREAU OF LAND MANAGEMENT | ALASKA | BERING SEA- WESTERN INTERIOR RMP/EIS 

South Fork Ku

River 

Tatina River 

skokw

Wildlife Habitat 

Plains Bison Range 

Wood Bison Core Range 

Wood Bison Extent

Range

Muskox Range

Dall Sheep Distribution 

BLM-managed Lands

U.S. Fish and Wildlife

Service 

U.S. Forest Service 

National Park Service 

Native Allotment 

Native Lands (Patented 

or Interim Conveyed)

Private 

State (Patented or 

Interim Conveyed)

Water 

Iditarod National Historic

Trail Primary Route 

Iditarod National Historic

Trail Connecting/Side 

Trails 

m i

Data Sources: BLM GIS 2017, 2018;

ADF&G 1985, 2011, 2016; RDI 2005 

No warranty is made by the Bureau of Land

Management as to the accuracy, reliability, or 

completeness of these data for individual or 

aggregate use with other data. Original data 

were compiled from various sources. This

information may not meet National Map Accuracy 

Standards. This product was developed through 

digital means and may be updated without 

notification. 

0 25 50 Miles 

3.2.7-6 

BSWI Draft RMP/EIS 
Potential Bat Habitat

Wildlife and Special Status 

U.S. DEPARTMENT OF THE INTERIOR | BUREAU OF LAND MANAGEMENT | ALASKA | BERING SEA- WESTERN INTERIOR RMP/EIS 

!H 

!> 

Lode Mines (BSWI

Mineral Potential Report)

Cave and Karst

Resources 

BLM-managed Lands

U.S. Fish and Wildlife

Service 

U.S. Forest Service 

National Park Service 

Native Allotment 

Native Lands (Patented 

or Interim Conveyed)

Private 

State (Patented or 

Interim Conveyed)

Water 

Iditarod National Historic

Trail Primary Route 

Iditarod National Historic

Trail Connecting/Side 

Trails 

Mystery Mountains 

Nixon Fork (Active Mine Site) 

Independence Mine 

Golden Horn Mine 

Decourcy Mountain Mine 

Kolmakof

Mine 

Willis and

Ci

Ch 

nnabar Fuller Mine 

ief Mine Barometer

 Mine Red Devil Mine 

Cinnabar Creek Lode Mine 

Mountain Top Mine 

Broken Shovel Mine 

Lime Hills 

Data Sources: BLM GIS 2016, 2017, 

2018; AECOM 2016 

No warranty is made by the Bureau of Land

Management as to the accuracy, reliability, or 

completeness of these data for individual or 

aggregate use with other data. Original data 

were compiled from various sources. This

information may not meet National Map Accuracy 

Standards. This product was developed through 

digital means and may be updated without 

notification. 

0 25 50 Miles 

3.2.7-7 

BSWI Draft RMP/EIS 
Nonnative Invasive Terrestrial Plant Occurrences 

Nonnative Invasive Species 

U.S. DEPARTMENT OF THE INTERIOR | BUREAU OF LAND MANAGEMENT | ALASKA | BERING SEA- WESTERN INTERIOR RMP/EIS 

Nonnative Invasive 

Terrestrial Plants 

! 1 Occurrence

! 2 - 5 Occurrences

! 6 - 10 Occurrences

!11 - 15 Occurrences 

BLM-managed Lands

U.S. Fish and Wildlife

Service 

U.S. Forest Service 

National Park Service 

Native Allotment 

Native Lands (Patented 

or Interim Conveyed)

Private 

State (Patented or 

Interim Conveyed)

Water 

Iditarod National Historic

Trail Primary Route 

Iditarod National Historic

Trail Connecting/Side 

Trails 

Data Source: BLM GIS 2017, 2018;

AKNHP 2016 

No warranty is made by the Bureau of Land

Management as to the accuracy, reliability, or 

completeness of these data for individual or 

aggregate use with other data. Original data 

were compiled from various sources. This

information may not meet National Map Accuracy 

Standards. This product was developed through 

digital means and may be updated without 

notification. 

0 25 50 Miles 

3.2.8-1 

BSWI Draft RMP/EIS 
Historical Fire Occurrences

Wildland Fire 

U.S. DEPARTMENT OF THE INTERIOR | BUREAU OF LAND MANAGEMENT | ALASKA | BERING SEA- WESTERN INTERIOR RMP/EIS 

Fire Year 

2010 - 2016 

2000 - 2009 

1990 - 1999 

1980 - 1989 

1970 - 1979 

BLM-managed Lands

U.S. Fish and Wildlife

Service 

U.S. Forest Service 

National Park Service 

Native Allotment 

Native Lands (Patented 

or Interim Conveyed)

Private 

State (Patented or 

Interim Conveyed)

Water 

Iditarod National Historic

Trail Primary Route 

Iditarod National Historic

Trail Connecting/Side 

Trails 

Data Source: BLM GIS 2016, 2017, 

2018 

No warranty is made by the Bureau of Land

Management as to the accuracy, reliability, or 

completeness of these data for individual or 

aggregate use with other data. Original data 

were compiled from various sources. This

information may not meet National Map Accuracy 

Standards. This product was developed through 

digital means and may be updated without 

notification. 

0 25 50 Miles 

3.2.9-1 

BSWI Draft RMP/EIS 
Historic Vegetation Fire Regimes 

Wildland Fire 

U.S. DEPARTMENT OF THE INTERIOR | BUREAU OF LAND MANAGEMENT | ALASKA | BERING SEA- WESTERN INTERIOR RMP/EIS 

Fire Regime Groups 

Water 

Sparsely Vegetated 

Snow / Ice 

Indeterminate Fire 

Regime Characteristics 

Fire Regime Group V 

Fire Regime Group IV 

Fire Regime Group III 

Barren 

Iditarod National Historic

Trail Primary Route 

Iditarod National Historic

Trail Connecting/Side 

Trails 

Data Source: BLM GIS 2017;

USGS 2013 

No warranty is made by the Bureau of Land

Management as to the accuracy, reliability, or 

completeness of these data for individual or 

aggregate use with other data. Original data 

were compiled from various sources. This

information may not meet National Map Accuracy 

Standards. This product was developed through 

digital means and may be updated without 

notification. 

0 25 50 Miles 

3.2.9-2 

BSWI Draft RMP/EIS 
Fuel Models

Wildland Fire 

U.S. DEPARTMENT OF THE INTERIOR | BUREAU OF LAND MANAGEMENT | ALASKA | BERING SEA- WESTERN INTERIOR RMP/EIS 

Fuel Models

Non-burnable Classes 

NB 1: Consists of land

covered by urban and

suburban development

NB 2: Consists of land

covered by permanent 

snow or ice 

NB 8: Includes land covered 

by open bodies or water such 

as lakes, rivers 

NB 9: Includes bare ground

Scott & Burgan 40 Models 

GR 1: Grass (short)

GR 2: Grass (low load)

GR 3: Grass (coarse)

GR 4: Grass (moderate load)

GS 1: Grass shrub (low load)

SH 1: Shrub (low load)

SH 2: Shrub (moderate load, 

dry climate)

SH 3: Shrub (moderate load, 

humid climate)

TL 1: Timber Litter (low load, 

compact conifer litter)

TL 2: Timber Litter (low load, 

broadleaf litter)

TL 3: Timber Litter (moderate

load, conifer litter)

TL 6: Timber Litter (moderate

load, broadleaf litter)

TU 1: Timber Understory 

(low load)

TU 3: Timber Understory 

(moderate load)

TU 4: Timber Understory 

(dwarf conifer)

TU 5: Timber Understory 

(high load)

Iditarod National Historic

Trail Primary Route

Iditarod National Historic Trail

Connecting/Side Trails 

Data Source: BLM GIS 2017;

USGS 2001 

No warranty is made by the Bureau of Land

Management as to the accuracy, reliability, or 

completeness of these data for individual or 

aggregate use with other data. Original data 

were compiled from various sources. This

information may not meet National Map Accuracy 

Standards. This product was developed through 

digital means and may be updated without 

notification. 

0 25 50 Miles 

3.2.9-3 

BSWI Draft RMP/EIS 
Potential Fossil Yield Classification 

Paleontological Resources 

U.S. DEPARTMENT OF THE INTERIOR | BUREAU OF LAND MANAGEMENT | ALASKA | BERING SEA- WESTERN INTERIOR RMP/EIS 

South

Fork Kuskokw

Tatina R iver 

m 

River 

Potential Fossil

Yield Classification BLM-managed Land 

Other Land 

PFYC Class 1 

PFYC Class 2 

PFYC Class 3 Nome 

PFYC Class 4 Not Present 

PFYC Class 5 Not Present 

Unknown 

Snow or Ice 

Water 

Iditarod National Historic Unalakleet Trail Primary Route 

Iditarod National Historic

Trail Connecting/Side 

Trails 

McGrath 

i 

Aniak 

Anchorage 

Bethel 

Data Source: BLM GIS 2017 

No warranty is made by the Bureau of Land

Management as to the accuracy, reliability, or 

completeness of these data for individual or 

aggregate use with other data. Original data 

were compiled from various sources. This

information may not meet National Map Accuracy 

Standards. This product was developed through 

digital means and may be updated without 

notification. 

0 25 50 Miles 

3.2.11-1 

BSWI Draft RMP/EIS 
Scenic Quality Rating 

Visual Resources 

U.S. DEPARTMENT OF THE INTERIOR | BUREAU OF LAND MANAGEMENT | ALASKA | BERING SEA- WESTERN INTERIOR RMP/EIS 

South

Fork Kuskok

w

Tatina R iver 

m 

River 

Scenic Quality Rating BLM-managed Land Other Land 

Class A 

Class B 

Class C 

Iditarod National Historic

Trail Primary Route 

Iditarod National Historic

Trail Connecting/Side 

Trails 

Data Source: BLM GIS 2017, 2018 

No warranty is made by the Bureau of Land

Management as to the accuracy, reliability, or 

completeness of these data for individual or 

aggregate use with other data. Original data 

were compiled from various sources. This

information may not meet National Map Accuracy 

Standards. This product was developed through 

digital means and may be updated without 

notification. 

i 

0 25 50 Miles 

3.2.12-1 

BSWI Draft RMP/EIS 
Sensitivity Level Rating 

Visual Resources 

U.S. DEPARTMENT OF THE INTERIOR | BUREAU OF LAND MANAGEMENT | ALASKA | BERING SEA- WESTERN INTERIOR RMP/EIS 

South

Fork Kuskokw

Tatina R iver 

m 

River 

Sensitivity Level Rating BLM-managed Land Other Land 

High

Moderate 

Low 

Iditarod National Historic

Trail Primary Route 

Iditarod National Historic

Trail Connecting/Side 

Trails 

Iditarod Contemporary 

Route 

Bill Moores 

Hamilton 

Chuloonawick Ophir Medfra 

i

Paimiut 

Georgetown 

Ohogamiut 

Napamiute Data Source: BLM GIS 2017, 2018 

No warranty is made by the Bureau of Land

Management as to the accuracy, reliability, or 

completeness of these data for individual or

Kasigluk aggregate use with other data. Original data 

were compiled from various sources. This Atmautluak information may not meet National Map Accuracy 

Umkumiute Oscarville Standards. This product was developed through Napaskiak digital means and may be updated without 

notification. 

0 25 50 Miles 

3.2.12-2 

BSWI Draft RMP/EIS 
Visual Distance Zones 

Visual Resources 

U.S. DEPARTMENT OF THE INTERIOR | BUREAU OF LAND MANAGEMENT | ALASKA | BERING SEA- WESTERN INTERIOR RMP/EIS 

South

Fork Kuskokw

Tatina R iver 

m 

River 

Visual Distance Zones BLM-managed Land Other Land 

ForegroundMiddleground

Background

Seldom Seen 

Iditarod National Historic

Trail Primary Route 

Iditarod National Historic

Trail Connecting/Side 

Trails 

Iditarod Contemporary 

Route 

Data Source: BLM GIS 2017 

No warranty is made by the Bureau of Land

Management as to the accuracy, reliability, or 

completeness of these data for individual or 

aggregate use with other data. Original data 

were compiled from various sources. This

information may not meet National Map Accuracy 

Standards. This product was developed through 

digital means and may be updated without 

notification. 

i 

0 25 50 Miles 

3.2.12-3 

BSWI Draft RMP/EIS 
Visual Resource Inventory Class 

Visual Resources 

U.S. DEPARTMENT OF THE INTERIOR | BUREAU OF LAND MANAGEMENT | ALASKA | BERING SEA- WESTERN INTERIOR RMP/EIS 

r e Riv

t e

Unalakle

South

Fork Kuskokw m 

River 

Tatina R iver 

Visual Resource Inventory Class 

(BLM-managed Lands Only)

VRI Class I (46,953 

Acres)

VRI Class II (486,358 

Acres)

VRI Class III (1,760,037 

Acres)

VRI Class IV (11,172,455 

Acres)

Iditarod National Historic

Trail Primary Route 

Iditarod National Historic

Trail Primary Route

(Detail Maps)

Iditarod National Historic

Trail Connecting/Side 

Trails 

i 

Data Source: BLM GIS 2017, 2018 

No warranty is made by the Bureau of Land

Management as to the accuracy, reliability, or 

completeness of these data for individual or 

aggregate use with other data. Original data 

were compiled from various sources. This

information may not meet National Map Accuracy 

Standards. This product was developed through 

digital means and may be updated without 

notification. 

0 25 50 Miles 

3.2.12-4 

BSWI Draft RMP/EIS 
Inventoried Lands with Wilderness Characteristics 

Lands with Wilderness Characteristics 

U.S. DEPARTMENT OF THE INTERIOR | BUREAU OF LAND MANAGEMENT | ALASKA | BERING SEA- WESTERN INTERIOR RMP/EIS 

Inventoried Lands with

Wilderness

Characteristics 

Inventoried Lands with

No Lands with

Wilderness

Characteristics 

Not Inventoried 

Iditarod National Historic

Trail Primary Route 

Iditarod National Historic

Trail Connecting/Side 

Trails 

Data Source: BLM GIS 2017, 2018 

No warranty is made by the Bureau of Land

Management as to the accuracy, reliability, or 

completeness of these data for individual or 

aggregate use with other data. Original data 

were compiled from various sources. This

information may not meet National Map Accuracy 

Standards. This product was developed through 

digital means and may be updated without 

notification. 

0 25 50 Miles 

3.2.13-1 

BSWI Draft RMP/EIS 
Permitted Grazing 

Grazing 

U.S. DEPARTMENT OF THE INTERIOR | BUREAU OF LAND MANAGEMENT | ALASKA | BERING SEA- WESTERN INTERIOR RMP/EIS 

r eviR htroN

Unalakleet River 

Permitted Grazing Range 

Boundaries on BLMmanaged Lands within

BSWI Planning Area 

Permitted Grazing Range 

Boundaries 

BLM-managed Lands

U.S. Fish and Wildlife

Service 

U.S. Forest Service 

National Park Service 

Native Allotment 

Native Lands (Patented 

or Interim Conveyed)

Private 

State (Patented or 

Interim Conveyed)

Water 

Iditarod National Historic

Trail Primary Route 

Iditarod National Historic

Trail Connecting/Side 

Trails

Unalakleet 

!( 

Data Sources: BLM GIS 2016, 2017, 

2018 

No warranty is made by the Bureau of Land

Management as to the accuracy, reliability, or 

completeness of these data for individual or 

aggregate use with other data. Original data 

were compiled from various sources. This

information may not meet National Map Accuracy 

Standards. This product was developed through 

digital means and may be updated without 

notification. 

0 25 50 Miles 

3.3.2-1 

BSWI Draft RMP/EIS 
Suitable Grazing Habitat

Grazing 

U.S. DEPARTMENT OF THE INTERIOR | BUREAU OF LAND MANAGEMENT | ALASKA | BERING SEA- WESTERN INTERIOR RMP/EIS 

Vegetation Classes 

Dwarf Shrub-Lichen 

(>20% Lichen Cover)

Lichen (>50% Lichen 

Cover)

Low Shrub/Lichen (>20% 

Lichen Cover)

White Spruce or Black 

Spruce/Lichen 

(Woodland-Open) (>20% 

Lichen Cover)

BLM-managed Lands

Iditarod National Historic

Trail Primary Route 

Iditarod National Historic

Trail Connecting/Side 

Trails 

Data Sources: BLM GIS 2017;

AKNHP 2016 

No warranty is made by the Bureau of Land

Management as to the accuracy, reliability, or 

completeness of these data for individual or 

aggregate use with other data. Original data 

were compiled from various sources. This

information may not meet National Map Accuracy 

Standards. This product was developed through 

digital means and may be updated without 

notification. 

0 25 50 Miles 

3.3.2-2 

BSWI Draft RMP/EIS 
Suitable Grazing Habitat, Stuart Range, Stebbins, & St.Michael

Grazing

U.S. DEPARTMENT OF THE INTERIOR | BUREAU OF LAND MANAGEMENT | ALASKA | BERING SEA- WESTERN INTERIOR RMP/EIS e ek k

Sound 

Norton 

Stuart Island Canal 

l anaC leahciM tniaS elittL

Sa

k 

i

ree

Klikitarik River 

nt 

C

Mic

 x

h

o

ae

 n B

l

og

 Canal 

aW

Nunavulnuk River 

Kuiak Rive

Pikmiktalik River

r 

Golsovia River 

Kogok River 

Qu ilo Cr ek 

Ecosites, NRCS

Lava Flow (Lichen)

Low Shrub (Floodplain)

Sedge (Drainageway)

Sedge (Wet Meadow)

BLM-managed Lands

U.S. Fish and Wildlife

Service 

Native Allotment 

Native Lands (Patented 

or Interim Conveyed)

Water 

Iditarod National Historic

Trail Primary Trail 

Iditarod National Historic

Trail Connecting/Side

Trails 

Stebbins 

St. Michael 

Data Sources: BLM GIS 2017, 2018;

NRCS 2016 

No warranty is made by the Bureau of Land

Management as to the accuracy, reliability, or 

completeness of these data for individual or 

aggregate use with other data. Original data 

were compiled from various sources. This

information may not meet National Map Accuracy

Standards. This product was developed through

digital means and may be updated without 

notification. 

3.3.2-3

0 1 2 4 6 8 10 Miles 

BSWI Draft RMP/EIS 
Type and Distribution of Mineral Occurrences

Locatable and Salable Minerals 

U.S. DEPARTMENT OF THE INTERIOR | BUREAU OF LAND MANAGEMENT | ALASKA | BERING SEA- WESTERN INTERIOR RMP/EIS !

Mineral Occurrence Deposit Type 

$ Alluvial placer Sn

Besshi massive sulfide 

? ! Creede epithermal veins

1 $ Cu skarn deposits

h " Disseminated Sb deposits !O Epithermal quartz-alunite Au

Felsic-dike-hosted qtz veinlets 

_^_"

w/Au 

a Hot-spring Hg 

" /Low-sulf de Au-quartz veins i 

k Noril''sk Cu-Ni-PGE 

! LPlacer Au-PGE

! CP utonic-hosted Cu-Au polymetallic l 

& - Podiform chromite

W X Polymetallic replacement deposits GF Polymetallic veins 

D Porphyry Cu-Au 

( ! Porphyry Cu-Mo

! Porphyry Mo, l 

_ 

< ow-F 

^ Sedimentary exhalative Zn-Pb #0 Silica-carbonate Hg 

" )S mp e Sb depos t i l i s #0 Sn-polymetallic veins 

! .Southeast Missouri Pb-Zn

" Synorogenic-synvolcanic Ni-Cu !? Thorium-rare-earth veins 

g Undetermined !@ W veins 

k Zn-Pb skarn deposits

BLM-managed Lands

U.S. Fish and Wildlife Service

U.S. Forest Service

National Park Service

Native Allotment

Native Lands (Patented or Interim

Conveyed)

Private

State (Patented or Interim

Conveyed)

Water

Iditarod National Historic Trail

Primary Route

Iditarod National Historic Trail

Connecting/Side Trails 

Data Sources: BLM GIS 2017, 2018 

No warranty is made by the Bureau of Land

Management as to the accuracy, reliability, or 

completeness of these data for individual or 

aggregate use with other data. Original data 

were compiled from various sources. This

information may not meet National Map Accuracy

Standards. This product was developed through

digital means and may be updated without 

notification. 

0 25 50 Miles 

3.3.3-1 

BSWI Draft RMP/EIS 
Mining Districts and Mining Claims 

Locatable and Salable Minerals 

U.S. DEPARTMENT OF THE INTERIOR | BUREAU OF LAND MANAGEMENT | ALASKA | BERING SEA- WESTERN INTERIOR RMP/EIS 

RUBY Federal Mining Claim

 MINING DISTRICT (Active) KAIYUH

 MINING DISTRICT Mining Prospecting Site -

State of Alaska 

INNOKO Mining Claim - State of MINING DISTRICT Takotna Nikolai 

!( Alaska !( 

Mining District Boundary

BLM-managed Lands

 M 

MCGRATH U.S. Fish and Wildlife

IDITAROD INING DISTRICT Service

 MINING DISTRICT U.S. Forest Service !(

KOYUK IditarodFlat National Park Service !( MINING DISTRICT Native Allotment 

Native Lands (Patented 

or Interim Conveyed)

Private 

State (Patented or ANIAK Interim Conveyed) MINING DISTRICT 

Water Crooked Creek RUBY MINING DISTRICT !( Iditarod National Historic

Trail Primary Trail 

KAIYUH Iditarod National Historic

MINING DISTRICT Trail Connecting/Side 

KANTISHNA Trails

MINING DISTRICT 

ANVIK

MINING DISTRICT INNOKO 

MINING DISTRICT 

M 

MARSHALL 

INING DISTRICT IDITAROD 

MINING DISTRICT M 

MCGRATH 

INING DISTRICT 

YENTNA MINING DISTRICT 

ANIAK 

MINING DISTRICT 

Data Sources: BLM GIS 2016, 2017, 

2018; ADNR 2016; Ransome and 

Kerns 1954 

No warranty is made by the Bureau of Land

Management as to the accuracy, reliability, or 

completeness of these data for individual or 

aggregate use with other data. Original data 

were compiled from various sources. This

information may not meet National Map Accuracy 

Standards. This product was developed through 

digital means and may be updated without 

notification. 

BETHEL 

MINING DISTRICT 

REDOUBT

MINING 

DISTRICT 

0 25 50 Miles 

3.3.3-2 

BSWI Draft RMP/EIS 
Locatable Mineral Potential

Locatable and Salable Minerals 

U.S. DEPARTMENT OF THE INTERIOR | BUREAU OF LAND MANAGEMENT | ALASKA | BERING SEA- WESTERN INTERIOR RMP/EIS 

Locatable Mineral

Potential 

Medium 

High

BLM-managed Lands

U.S. Fish and Wildlife

Service 

U.S. Forest Service 

National Park Service 

Native Allotment 

Native Lands (Patented 

or Interim Conveyed)

Private 

State (Patented or 

Interim Conveyed)

Water 

Iditarod National Historic

Trail Primary Route 

Iditarod National Historic

Trail Connecting/Side 

Trails 

Data Sources: BLM GIS 2017, 2018 

No warranty is made by the Bureau of Land

Management as to the accuracy, reliability, or 

completeness of these data for individual or 

aggregate use with other data. Original data 

were compiled from various sources. This

information may not meet National Map Accuracy 

Standards. This product was developed through 

digital means and may be updated without 

notification. 

0 25 50 Miles 

3.3.3-3 

BSWI Draft RMP/EIS 
Placer Mining Areas and Lode Deposits with Significant Production 

Locatable and Salable Minerals 

U.S. DEPARTMENT OF THE INTERIOR | BUREAU OF LAND MANAGEMENT | ALASKA | BERING SEA- WESTERN INTERIOR RMP/EIS 

24 

3 

20 

22 

GOLDEN

HORN MINE 

12 

DECOURCY 10 MOUNTAIN

MINE 

KOLMAKOF

MINE 

18 

MOUNTAIN

TOP MINE 

13 

16

9 

7 CINNABAR

CREEK LODE 

8 

2 

14 

4 

INDEPENDENCE

MINE 

17 

15 

23 

ALICE AND 

BESSIE;

PARKS

PROSPECT 

RED

DEVIL 

21 

6 

1 

NIXON

FORK

MINE 19 

11 

WHITE

MOUNTAIN

MINE 

TERRA

NORTH 

Lode Deposit 

Placer Key

1, Alder Creek 

2, Boob Creek

3, Buster Creek 

4, Candle Creek 

5, Canyon Creek

6, Chanuk Creek

7, Cripple Creek 

8, Cripple Mtns 

9, Dominion Creek 

10, Donlin Creek 

11, Eagle Creek 

12, Flat 

13, Fortyseven Creek 

14, Gaines-Ophir Creeks 

15, Julian Creek 

16, Marvel Creek 

17, Moore Creek

18, Murry Gulch 

19, Nixon Fork 

20, Stuyahok Creek

21, Taylor Creek 

22, Tuluksak River 

23, Willow Creek 

24, Willow Creek 

BLM-managed Lands

U.S. Fish and Wildlife

Service 

U.S. Forest Service 

National Park Service 

Native Allotment 

Native Lands (Patented or 

Interim Conveyed)

Private 

State (Patented or Interim

Conveyed)

Water 

Iditarod National Historic

Trail Primary Route 

Iditarod National Historic

Trail Connecting/Side Trails 

Data Sources: BLM GIS 2017, 2018 

No warranty is made by the Bureau of Land

Management as to the accuracy, reliability, or 

completeness of these data for individual or 

aggregate use with other data. Original data 

were compiled from various sources. This

information may not meet National Map Accuracy 

Standards. This product was developed through 

digital means and may be updated without 

notification. 

0 25 50 Miles 

3.3.3-4 

BSWI Draft RMP/EIS 
Coal and Coal Gas Potential

Leasable Minerals 

U.S. DEPARTMENT OF THE INTERIOR | BUREAU OF LAND MANAGEMENT | ALASKA | BERING SEA- WESTERN INTERIOR RMP/EIS 

o y

u

k

u

k 

B 

a

s i n

K

r

L o w e

n i s a B

n a

M i n c h u m i

Coal Basins/Districts 

BLM-managed Lands

U.S. Fish and Wildlife

Service 

U.S. Forest Service 

National Park Service 

Native Allotment 

Native Lands (Patented 

or Interim Conveyed)

Private 

State (Patented or 

Interim Conveyed)

Water 

Iditarod National Historic

Trail Primary Route 

Iditarod National Historic

Trail Connecting/Side 

Trails 

Nelson 

D

Island

istrict 

0 25 50 Miles 

Data Source: BLM GIS 2017, 2018;

Merritt & Hawley 1986 

No warranty is made by the Bureau of Land

Management as to the accuracy, reliability, or 

completeness of these data for individual or 

aggregate use with other data. Original data 

were compiled from various sources. This

information may not meet National Map Accuracy 

Standards. This product was developed through 

digital means and may be updated without 

notification. 

3.3.4-1 

BSWI Draft RMP/EIS 
Oil and Gas Potential Areas 

Leasable Minerals 

U.S. DEPARTMENT OF THE INTERIOR | BUREAU OF LAND MANAGEMENT | ALASKA | BERING SEA- WESTERN INTERIOR RMP/EIS 

Oil/Gas Basins 

BLM-managed Lands

U.S. Fish and Wildlife

Service 

U.S. Forest Service 

Norton Basin 

Gal

Bas

ena

in 

National Park Service 

Native Allotment 

Native Lands (Patented 

or Interim Conveyed)

Private 

State (Patented or 

Interim Conveyed)

Water 

Iditarod National Historic

Trail Primary Route 

Iditarod National Historic

Trail Connecting/Side 

Trails 

Innoko

Basin 

Minchumina 

Basin 

Holitna Basin 

Bethel Basin 

Data Source: BLM GIS 2017, 2018;

DGGS 1983 

No warranty is made by the Bureau of Land

Management as to the accuracy, reliability, or 

completeness of these data for individual or 

aggregate use with other data. Original data 

were compiled from various sources. This

information may not meet National Map Accuracy 

Standards. This product was developed through 

digital means and may be updated without 

notification. 

0 25 50 Miles 

3.3.4-2 

BSWI Draft RMP/EIS 
Geothermal Potential

Leasable Minerals 

U.S. DEPARTMENT OF THE INTERIOR | BUREAU OF LAND MANAGEMENT | ALASKA | BERING SEA- WESTERN INTERIOR RMP/EIS 

Upper

Chuil

R 

nuk 

Hot Spri iver 

Creek 

ng 

k Hotsprings 

Geothermal Regions 

BLM-managed Lands

U.S. Fish and Wildlife

Service 

U.S. Forest Service 

National Park Service 

Native Allotment 

Native Lands (Patented 

or Interim Conveyed)

Private 

State (Patented or 

Interim Conveyed)

Water 

Iditarod National Historic

Trail Primary Route 

Iditarod National Historic

Trail Connecting/Side 

Trails 

Data Source: BLM GIS 2017, 2018;

INEEL 2003 

No warranty is made by the Bureau of Land

Management as to the accuracy, reliability, or 

completeness of these data for individual or 

aggregate use with other data. Original data 

were compiled from various sources. This

information may not meet National Map Accuracy 

Standards. This product was developed through 

digital means and may be updated without 

notification. 

0 25 50 Miles 

3.3.4-3 

BSWI Draft RMP/EIS 
Public Land Orders 

Lands and Realty

U.S. DEPARTMENT OF THE INTERIOR | BUREAU OF LAND MANAGEMENT | ALASKA | BERING SEA- WESTERN INTERIOR RMP/EIS 

Public Land Order 

(PLO)

PLO 5172 

PLO 5173 

PLO 5179 

PLO 5180 

PLO 5184 

PLO 5186 

BLM-managed lands 

U.S. Fish and Wildlife

Service 

National Park Service 

Native Allotment 

Native Lands (Patented 

or Interim Conveyed)

Private 

State (Patented or 

Interim Conveyed)

Water 

Iditarod National Historic

Trail Primary Route 

Iditarod National Historic

Trail Connecting/Side 

Trails 

Data Sources: BLM GIS 2017, 2018 

No warranty is made by the Bureau of Land

Management as to the accuracy, reliability, or 

completeness of these data for individual or 

aggregate use with other data. Original data 

were compiled from various sources. This

information may not meet National Map Accuracy 

Standards. This product was developed through 

digital means and may be updated without 

notification. 

0 25 50 Miles 

3.3.5-1 

BSWI Draft RMP/EIS 
Transportation Networks 

Travel and Transportation 

U.S. DEPARTMENT OF THE INTERIOR | BUREAU OF LAND MANAGEMENT | ALASKA | BERING SEA- WESTERN INTERIOR RMP/EIS 

Iditarod National Historic

Trail Primary Route 

Iditarod Contemporary 

Route 

Iditarod National Historic

Trail Connecting/Side 

Trails 

Roads 

BLM-managed Lands

U.S. Fish and Wildlife

Service 

U.S. Forest Service 

National Park Service 

Native Allotment 

Native Lands (Patented 

or Interim Conveyed)

Private 

State (Patented or 

Interim Conveyed)

Water 

No data available for known 

Kuskokwim and Yukon 

Rivers intervillage surface 

travel routes. 

Data Sources: BLM GIS 2009, 2017, 

2018; ADNR 2011; ADOT&PF 2012 

No warranty is made by the Bureau of Land

Management as to the accuracy, reliability, or 

completeness of these data for individual or 

aggregate use with other data. Original data 

were compiled from various sources. This

information may not meet National Map Accuracy 

Standards. This product was developed through 

digital means and may be updated without 

notification. 

0 25 50 Miles 

3.3.7-1 

BSWI Draft RMP/EIS 
Wind Resources

Renewable Energy 

U.S. DEPARTMENT OF THE INTERIOR | BUREAU OF LAND MANAGEMENT | ALASKA | BERING SEA- WESTERN INTERIOR RMP/EIS 

Wind Power Class 

Wind Speed* at

a height of 50 meters 

1 - Poor Resource

Potential (0.0 - 12.5 mph) 

2 - Marginal Resource 

Potential (12.5 - 14.3 mph)

3 - Fair Resource 

Potential (14.3 - 15.7 mph)

4 - Good Resource

Potential (15.7 - 16.8 mph)

5 - Excellent Resource 

Potential (16.8 - 17.9 mph)

6 - Outstanding Resource 

Potential (17.9 - 19.7 mph)

7 - Superb Resource

Potential (> 19.7 mph)

Iditarod National Historic 

Trail Primary Route 

Iditarod National Historic

Trail Connecting/Side 

Trails

*W

We

indspeeds are based on a

ibull k value of 2.0 

Data Source: BLM GIS 2017;

NREL 2016 

No warranty is made by the Bureau of Land

Management as to the accuracy, reliability, or 

completeness of these data for individual or 

aggregate use with other data. Original data 

were compiled from various sources. This

information may not meet National Map Accuracy 

Standards. This product was developed through 

digital means and may be updated without 

notification. 

0 25 50 Miles 

3.3.8-1 

BSWI Draft RMP/EIS 
Forest Biomass 

Renewable Energy 

U.S. DEPARTMENT OF THE INTERIOR | BUREAU OF LAND MANAGEMENT | ALASKA | BERING SEA- WESTERN INTERIOR RMP/EIS 

Deciduous Forest (OpenClosed) or White Spruce 

or Bl

Dec 

ack Spruceiduous (OpenClosed)

White Spruce or Black 

Spruce (Open-Closed) or 

White Spruce or Black 

Spruce (Woodland)

White Spruce or Black 

Spruce/Lichen 

(Woodland-Open)

BLM-managed Lands

Iditarod National Historic

Trail Primary Route 

Iditarod National Historic

Trail Connecting/Side 

Trails 

Data Source: BLM GIS 2017;

AKNHP 2016 

No warranty is made by the Bureau of Land

Management as to the accuracy, reliability, or 

completeness of these data for individual or 

aggregate use with other data. Original data 

were compiled from various sources. This

information may not meet National Map Accuracy 

Standards. This product was developed through 

digital means and may be updated without 

notification. 

0 25 50 Miles 

3.3.8-2 

BSWI Draft RMP/EIS 
Peat Occurrences

Renewable Energy

U.S. DEPARTMENT OF THE INTERIOR | BUREAU OF LAND MANAGEMENT | ALASKA | BERING SEA- WESTERN INTERIOR RMP/EIS t e e

Ta

r 

n

od Rive

g

S

o

m

C

i

re

th

e

C

k 

r tai d

r Flat Creek 

I

eek 

Monta

Kol

na Creek 

k eer

Be

C

ll C

ro

a Creek oked Creek 

makof River 

nu

tme G

gjuk Creek 

nuJ

Peat Occurrences

Tango Area (NRCS STATSGO So

Texture)

Proposed Donlin Projec

Peat Exploration 

il 

t 

Kolmakoftl Cr ekLi

Locations 

BLM-managed Lands

Iditarod National Historic

Trail Primary Trail 

Iditarod National Historic

Trail Connecting/Side

Trails 

Area 

Data Source: BLM GIS 2017;

BLM 2007; USDA-NRCS

Alaska 2011 

No warranty is made by the Bureau of Land

Management as to the accuracy, reliability, or 

completeness of these data for individual or 

aggregate use with other data. Original data 

were compiled from various sources. This

information may not meet National Map Accuracy

Standards. This product was developed through

digital means and may be updated without 

notification. 

0 25 50 Miles 

3.3.8-3 

BSWI Draft RMP/EIS 
Photovoltaic Solar Resources

Renewable Energy 

U.S. DEPARTMENT OF THE INTERIOR | BUREAU OF LAND MANAGEMENT | ALASKA | BERING SEA- WESTERN INTERIOR RMP/EIS 

Photovoltaic Solar 

Annual Kilowatt 

Hours 

2188 - 2500 

2501 - 3000 

3001 - 3500 

3501 - 4000 

4001 - 4500 

Iditarod National Historic

Trail Primary Route 

Iditarod National Historic

Trail Connecting/Side 

Trails 

Data Source: BLM GIS 2017;

NREL 2016 

No warranty is made by the Bureau of Land

Management as to the accuracy, reliability, or 

completeness of these data for individual or 

aggregate use with other data. Original data 

were compiled from various sources. This

information may not meet National Map Accuracy 

Standards. This product was developed through 

digital means and may be updated without 

notification. 

0 25 50 Miles 

3.3.8-4 

BSWI Draft RMP/EIS 
Existing Areas of Critical Environmental Concern (ACECs)

ACEC 

U.S. DEPARTMENT OF THE INTERIOR | BUREAU OF LAND MANAGEMENT | ALASKA | BERING SEA- WESTERN INTERIOR RMP/EIS 

Existing ACECs

Box River Treeline RNA 

Kateel River ACEC 

Gisasa River ACEC 

Inglutalik River ACEC 

Ungalik River ACEC 

Shaktoolik River ACEC 

North River ACEC 

Drainages of the 

Unalakleet River ACEC 

Anvik River ACEC 

Peregrine Falcon Nesting 

Habitat ACEC 

Unalakleet 

Kuskokwim River Raptor 

Nesting Habitat ACEC 

BLM-managed Lands

U.S. Fish and Wildlife

Service 

U.S. Forest Service 

National Park Service 

Native Allotment 

Native Lands (Patented 

or Interim Conveyed)

Private 

State (Patented or 

Interim Conveyed)

Water 

Iditarod National Historic

Trail Primary Route 

Iditarod National Historic

Trail Connecting/Side 

Trails 

Data Source: BLM GIS 2016, 2017, 

2018 

No warranty is made by the Bureau of Land

Management as to the accuracy, reliability, or 

completeness of these data for individual or 

aggregate use with other data. Original data 

were compiled from various sources. This

information may not meet National Map Accuracy 

Standards. This product was developed through 

digital means and may be updated without 

notification. 

0 25 50 Miles 

3.4.1-1 

BSWI Draft RMP/EIS 
Potential ACECs (Existing and Nominated ACECs that Meet Relevance & Importance)

ACEC 

U.S. DEPARTMENT OF THE INTERIOR | BUREAU OF LAND MANAGEMENT | ALASKA | BERING SEA- WESTERN INTERIOR RMP/EIS 

Potential ACECs (Existing)

Kateel River ACEC 

Gisasa River ACEC 

Inglutalik ACEC 

Ungalik River ACEC 

Shaktoolik River ACEC 

North River ACEC 

Drainages of the Unalakleet

River ACEC 

Anvik River ACEC 

Potential ACECs 

(Nominated)

Tagagawik River ACEC 

Kateel River ACEC 

Gisasa River ACEC 

Nulato River ACEC 

Unalakleet ACEC 

Unalakleet River Watershed 

ACEC 

Unalakleet Tenmile River Watershed 

ACEC 

Anvik River Watershed 

ACEC 

Anvik Traditional Trapping 

Area ACEC 

Sheefish ACEC 

Swift River Whitefish 

Spawning ACEC

BLM-managed Lands

U.S. Fish and Wildlife

Service 

U.S. Forest Service 

National Park Service 

Native Allotment 

Native Lands (Patented or 

Interim Conveyed)

Private 

State (Patented or Interim

Conveyed)

Water 

Iditarod National Historic

Trail Primary Route 

Iditarod National Historic

Trail Connecting/Side Trails 

Data Source: BLM GIS 2016, 2017, 

2018 

No warranty is made by the Bureau of Land

Management as to the accuracy, reliability, or 

completeness of these data for individual or 

aggregate use with other data. Original data 

were compiled from various sources. This

information may not meet National Map Accuracy 

Standards. This product was developed through 

digital means and may be updated without 

notification. 

0 25 50 Miles 

3.4.1-2 

BSWI Draft RMP/EIS 
Iditarod National Historic Trail

National Trails 

U.S. DEPARTMENT OF THE INTERIOR | BUREAU OF LAND MANAGEMENT | ALASKA | BERING SEA- WESTERN INTERIOR RMP/EIS 

South Fork 

Tatina River 

Kuskokwim 

Iditarod NHT - Federal

ANILCA CSU* 

Iditarod National Historic

Trail Primary Route 

Iditarod Contemporary 

Route 

Iditarod National Historic

Trail Connecting/Side 

Trails 

BLM-managed Lands

U.S. Fish and Wildlife

Service 

U.S. Forest Service 

National Park Service 

Native Allotment 

Native Lands (Patented 

or Interim Conveyed)

Private 

State (Patented or 

Interim Conveyed)

Water 

*CSU not to scale.

Data Source: BLM GIS 2009, 2017, 

2018; ADNR 2011 

No warranty is made by the Bureau of Land

Management as to the accuracy, reliability, or 

completeness of these data for individual or 

aggregate use with other data. Original data 

were compiled from various sources. This

information may not meet National Map Accuracy 

Standards. This product was developed through 

digital means and may be updated without 

notification. 

0 25 50 Miles 

3.4.2-1 

BSWI Draft RMP/EIS 
Existing and Eligible Wild & Scenic Rivers 

Wild & Scenic Rivers (WSR)

U.S. DEPARTMENT OF THE INTERIOR | BUREAU OF LAND MANAGEMENT | ALASKA | BERING SEA- WESTERN INTERIOR RMP/EIS 

Una al k el e

Fork 

Rt vi e

h

r 

tr o N

Yukon River 

n River 

Yuko

Unalakleet Wild River 

Corridor 

Wild and Scenic River 

Eligible Segment

Corridor 

BLM-managed Lands

U.S. Fish and Wildlife

Service 

U.S. Forest Service 

National Park Service 

Native Allotment 

Native Lands (Patented 

or Interim Conveyed)

Private 

State (Patented or 

Interim Conveyed)

Water 

Iditarod National Historic

Trail Primary Route 

Iditarod National Historic

Trail Connecting/Side 

Trails 

Data Source: BLM GIS 2017, 2018 

No warranty is made by the Bureau of Land

Management as to the accuracy, reliability, or 

completeness of these data for individual or 

aggregate use with other data. Original data 

were compiled from various sources. This

information may not meet National Map Accuracy 

Standards. This product was developed through 

digital means and may be updated without 

notification. 

0 25 50 Miles 

3.4.3-1 

BSWI Draft RMP/EIS 
Social and Economic Conditions 

Socioeconomic Regions and Communities 

U.S. DEPARTMENT OF THE INTERIOR | BUREAU OF LAND MANAGEMENT | ALASKA | BERING SEA- WESTERN INTERIOR RMP/EIS 

Socioeconomic

Region 

Lower Kuskokwim

* Upper Kuskokw

Lower Yukon

#0 

#* 

# im

0 # Yukon De lta

Stebbins 

Shaktoolik 

Unalakleet 

St. Michael 

Grayling 

Koyukuk 

Nulato 

Kaltag 

Takotna Nikolai 

!. Bering Sea

+ $ Nulato Hills

!R Western Interior

Game Management

Subunit 

BLM-managed Lands

U.S. Fish and Wildlife

Service 

U.S. Forest Service 

National Park Service 

Native Allotment 

Native Lands (Patented 

or Interim Conveyed)

Private 

State (Patented or 

Interim Conveyed)

Water 

Iditarod National Historic

Trail Primary Route 

Iditarod Naitonal Historic

Trail Connecting/Side 

Trails 

Anvik Shageluk McGrath 

Mountain Village 

Pitkas Point 

St. Mary's Holy Cross

Pilot Station

Marshall 

Russian Mission Crooked Creek 

Upper Kalskag

Aniak

Lower Kalskag 

Bethel 

Red Devil 

Stony River 

Sleetmute 

Lime Village 

Data Sources: BLM GIS 2017, 2018;

ADF&G 2016; Census 2010 

No warranty is made by the Bureau of Land

Management as to the accuracy, reliability, or 

completeness of these data for individual or 

aggregate use with other data. Original data 

were compiled from various sources. This

information may not meet National Map Accuracy 

Standards. This product was developed through 

digital means and may be updated without 

notification. 

0 25 50 Miles 

3.5.1-1 

BSWI Draft RMP/EIS 
Federally Permitted Subsistence Hunts, Subsistence Resources Search and Harvest Areas

Subsistence 

U.S. DEPARTMENT OF THE INTERIOR | BUREAU OF LAND MANAGEMENT | ALASKA | BERING SEA- WESTERN INTERIOR RMP/EIS 

22B 

23Z 

22A 

21E 

21D 

21A 

24D 

Federal Subsistence Units 

22A - BLM-managed

Federal Subsistence 

Moose Hunt 

22B - BLM-managed

Federal Subsistence

Moose, Musk Ox Hunt 

Game Management Units

(AK Dept of Fish & Game)

Norton Sound/Unalakleet

River Search and Harvest

Areas (includes community

of Unalakleet)

Yukon Communities

Search and Harvest Areas 

(Includes communities of

Anvik, Grayling, Holy

Cross, Marshall, Nulato, 

Russion Mission and 

Shageluk)

Kuskokwim Communities 21B Search and Harvest Areas 

(Includes communities of

Aniak, Bethel

Creek, Chuat

, Crooked

luk, 

Kalskag, Lime Village, 20C 

hba 

Lower Kalskag, McGrath, 

Nikolai, Red Devil,

Sleetmute, Stony River 

and Takotna)

BLM-managed Lands

U.S. Fish and Wildlife

Service 

U.S. Forest Service 

19D National Park Service 

Native Allotment 

Native Lands (Patented or 

Interim Conveyed)

Private 

State (Patented or Interim

Conveyed)

Water 

Iditarod National Historic 19C Trail Primary Route 

Iditarod National Historic

Trail Connecting/Side 

Trails 

19A 18Z Data Source: BLM GIS 2016, 2017, 

16B 2018; ADF&G 2010, 2014, 2017;

AECOM 2018 

No warranty is made by the Bureau of Land

Management as to the accuracy, reliability, or 

completeness of these data for individual or 

aggregate use with other data. Original data 

were compiled from various sources. This

information may not meet National Map Accuracy 

Standards. This product was developed through 

digital means and may be updated without 

notification. 

19B 

17B 

09B 

0 25 50 Miles 

3.5.2-1 

BSWI Draft RMP/EIS 
BSWI Draft RMP/EIS Volume 3: Maps

1 

Map Descriptions

Chapter 3 Description of Maps

Map Number and 

Title

Map Description

3.2.2-1A: January 

Temperature (°C): A2 

Scenario – Climate 

Change

Map 3.2.2-1A shows the effects of climate change on January average air temperatures within the 

planning area in four time period maps depicting temperatures in the 2010s, 2020s, 2050s, and 2060s. 

For the 2010s map, maximum and minimum temperatures range between minus 6.3 and minus 21.6 

degrees centigrade. For the 2020s map, maximum and minimum temperatures are projected to range 

between minus 5.6 and minus 20.9 degrees centigrade. For the 2050s map, maximum and minimum 

temperatures are projected to range between minus 4.4 and minus 19.7 degrees centigrade. For the 

2060s map, maximum and minimum temperatures are projected to range between minus 3.0 and minus 

18.7 degrees centigrade. From southwest to northeast in the planning area, projected temperatures for 

each period are shown to become increasingly warmer.

3.2.2-1B: January 

Temperature (°C): A2 

Scenario Divergence 

from Current – 

Climate Change

Map 3.2.2-1B shows the projected change in January average air temperatures between the 2010s and 

the 2060s within the planning area. The maximum projected change between these periods is 4.0 

degrees centigrade, while the minimum change is 2.4 degrees centigrade. From south to north in the 

planning area, the change in temperature is generally greatest in the northern portion of the Yukon Delta 

(3.5 to 4.0 degrees centigrade), intermediate in the central and northeastern portion of the planning area 

(2.7 to 3.3 degrees centigrade), and smallest in the southeastern portion of the planning area (2.4 to 2.7 

degrees centigrade).

3.2.2-2A: July 

Temperature (°C): A2 

Scenario – Climate 

Change

Map 3.2.2-2A shows the effects of climate change on July average air temperatures within the planning 

area in four time period maps depicting temperatures in the 2010s, 2020s, 2050s, and 2060s. For the 

2010s map, maximum and minimum temperatures range between 17.1 and minus 0.9 degrees 

centigrade. For the 2020s map, maximum and minimum temperatures are projected to range between 

17.2 and minus 1.0 degrees centigrade. For the 2050s map, maximum and minimum temperatures are 

projected to range between 17.5 and minus 0.5 degrees centigrade. For the 2060s map, maximum and 

minimum temperatures are projected to range between 18.3 and 0.1 degrees centigrade. From southwest

to northeast in the planning area, projected temperatures for each period are shown to become 

increasingly warmer except for the Alaska Range in the east where temperatures would be lower than in 

the remainder of the planning area.

3.2.2-2B: July 

Temperature (°C): A2 

Scenario Divergence 

from Current – 

Climate Change

Map 3.2.2-2B shows the projected change in July average air temperatures between the 2010s and the 

2060s within the planning area. The maximum projected change between these periods is 1.6 degrees 

centigrade, while the minimum change is 0.9 degrees centigrade. From southeast to northwest in the 

planning area, the change in temperature is generally less southeast of the Kuskokwim River (0.9 to 1.1 

degrees centigrade), intermediate between the Kuskokwim River and Unalakleet (1.2 to 1.3 degrees 

centigrade), and greatest in the far northern portion of the planning area in the vicinity of the Unalakleet 

and Kateel Rivers (1.3 to 1.6 degrees centigrade).

3.2.2-3A: Average 

Total Annual 

Precipitation 

(mm/year): A2 

Scenario – Climate 

Change

Map 3.2.2-3A shows the effects of climate change on average total annual precipitation within the 

planning area in four time period maps depicting precipitation in the 2010s, 2020s, 2050s, and 2060s. For 

the 2010s map, maximum and minimum precipitation ranges from 1,854 millimeters per year to 301 

millimeters per year. For the 2020s map, maximum and minimum average total precipitation is projected 

to range between 1,970 and 321 millimeters per year. For the 2050s map, maximum and minimum 

average total precipitation is projected to range from 2,065 to 344 millimeters per year. For the 2060s 

map, maximum and minimum total average precipitation is projected to range between 2,112 and 350 

millimeters per year. In the planning area, average total precipitation is projected to increase from the 

2010s time period to the 2060s time period. The general pattern shows higher precipitation in the Alaska 

Range, lower precipitation in the Lake Minchumina area, and generally intermediate precipitation levels in 

the remainder of the planning area, with precipitation being generally higher in the Yukon Delta area than 

in the central planning area.
Volume 3: Maps BSWI Draft RMP/EIS

2 

Map Number and 

Title

Map Description

3.2.2-3B: Average 

Summer Precipitation 

(mm): A2 Scenario 

Divergence from 

Current – Climate 

Change

Map 3.2.2-3B shows the projected change in average total annual precipitation between the 2010s and 

the 2060s within the planning area. The maximum projected change between these periods is 260 

millimeters per year, while the minimum change is 37 millimeters per year. The change in average total 

annual precipitation is greatest in the Alaska Range (95 to 360 millimeters per year) and smallest in the 

southern Yukon Delta, an area northeast of McGrath, and a north to south area between the Kuskokwim 

River and Innoko NWF (37 to 65 millimeters per year). The change in precipitation is intermediate in the 

remainder of the planning area (65 to 95 millimeters per year). 

3.2.2-4A: Average 

Summer Precipitation 

(mm): A2 Scenario – 

Climate Change

Map 3.2.2-4A shows the effects of climate change on average summer precipitation within the planning 

area in four time period maps depicting average summer precipitation in the 2010s, 2020s, 2050s, and 

2060s. For the 2010s map, maximum and minimum average summer precipitation ranges from 552 

millimeters to 124 millimeters. For the 2020s map, maximum and minimum average summer precipitation 

is projected to range between 562 and 136 millimeters. For the 2050s map, maximum and minimum 

average summer precipitation is projected to range from 609 to 151 millimeters. For the 2060s map, 

maximum and minimum average summer precipitation is projected to range between 618 and 139 

millimeters. In the planning area, average total precipitation is projected to increase from the 2010s time 

period to the 2060s time period. The general summer pattern shows higher precipitation in the Alaska 

Range and higher terrain south of Aniak, lower precipitation in the southwestern Yukon Delta, and 

generally intermediate precipitation levels in the remainder of the planning area.

3.2.2-4B: Average 

Summer Precipitation 

(mm): A2 Scenario 

Divergence from 

Current – Climate 

Change

Map 3.2.2-4B shows the projected change in average summer precipitation between the 2010s and the 

2060s within the planning area. The maximum projected change between these periods is 79 millimeters, 

while the minimum projected change is 11 millimeters. The change in average summer precipitation is 

greatest in the Alaska Range (35 to 79 millimeters) and smallest in the north-central planning area 

including the Innoko NWR, Unalakleet and Lake Minchumina areas, and the far northwest of the planning 

area (11 to 15 millimeters). The change in average summer precipitation is intermediate in the remainder 

of the planning area (15 to 35 millimeters).

3.2.2-5A: Average 

Winter Precipitation 

(mm): A2 Scenario– 

Climate Change

Map 3.2.2-5A shows the effects of climate change on average winter precipitation within the planning area 

in four time period maps depicting average winter precipitation in the 2010s, 2020s, 2050s, and 2060s. 

For the 2010s map, maximum and minimum average winter precipitation ranges from 471 millimeters to 

34 millimeters. For the 2020s map, maximum and minimum average winter precipitation is projected to 

range between 536 and 41 millimeters. For the 2050s map, maximum and minimum average winter 

precipitation is projected to range from 530 to 41 millimeters. For the 2060s map, maximum and minimum 

average winter precipitation is projected to range between 533 and 39 millimeters. In the planning area, 

average winter precipitation is projected to increase from the 2010s time period to the 2060s time period. 

The general winter pattern shows highest precipitation in the Alaska Range, generally lowest precipitation 

in the vicinity of Lake Minchumina, and generally intermediate winter precipitation levels in the remainder 

of the planning area.

3.2.2-5B: Average 

Winter Precipitation 

(mm): A2 Scenario 

Divergence from 

Current– Climate 

Change

Map 3.2.2-5B shows the projected change in average winter precipitation between the 2010s and the 

2060s within the planning area. The maximum projected change between these periods is 62 millimeters, 

while the minimum projected change is 3 millimeters. The change in average winter precipitation is 

greatest in the Alaska Range (15 to 62 millimeters) and smallest in the southwestern Yukon Delta and an 

area south of Lake Minchumina (3 to 5 millimeters). The change in average winter precipitation is 

generally intermediate in the remainder of the planning area (5 to 15 millimeters).

3.2.2-6: Day of 

Freeze: A2 Scenario – 

Climate Change

Map 3.2.2-6 shows the effects of climate change on the date of freezing within the planning area in four 

time period maps depicting day of freeze in the 2010s, 2020s, 2050s, and 2060s. For the southwestern 

Yukon Delta, the latest date of freeze is October 27 to December 16. This area increases notably in size 

between the 2010s and 2060s. Parts of the Alaska Range are always frozen, but the permanently frozen 

area decreases in size between the 2010s and the 2060s. The west and south-central portions of the 

planning area typically freeze between October 7 and October 27, but the maps show this area notably 

increasing in size by the 2050s and 2060s to encompass most of the planning area. Freeze date appears 

to be occurring later over a progressively larger land area over time.
BSWI Draft RMP/EIS Volume 3: Maps

3 

Map Number and 

Title

Map Description

3.2.2-7: Day of Thaw: 

A2 Scenario – Climate 

Change

Map 3.2.2-7 shows the effects of climate change on the date of thaw within the planning area in four time 

period maps depicting day of thaw in the 2010s, 2020s, 2050s, and 2060s. The maps for the 2010s and 

2020s show the date of thaw for the western half of the planning area as April 20 to May 13. For the 

eastern half of the planning area, excluding the Alaska Range where thaws occur from April 20 to July 11, 

these maps show that the date of thaw is earlier, occurring between March 26 to April 20. The maps for 

the 2050s and 2060s show that the area of earlier thaw increases notably in size to encompass all but the 

western quarter of the planning area and the Alaska Range to the east. The maps show that over time the 

thaw date is projected to occur earlier over a progressively larger land area.

3.2.3-1: Physiographic 

Regions – Geology 

and Soils

Map 3.2.3-1 shows the 12 physiographic regions that are defined by geology and soils within the planning 

area. The Yukon-Kuskokwim Coastal Lowland occupies the Yukon Delta area. The Nulato Hills 

physiographic region extends north and west of the Yukon River to the northwestern boundary of the 

planning area where a small area of the Buckland River Lowland occupies the far northwestern corner, 

and a negligible area of the Koyukuk Flats occurs to the east and north of the Kateel River. The Innoko 

Lowlands and Kuskokwim Mountains physiographic regions occupy the central portion of the planning 

area. Immediately to the south, the Ahklun Mountains physiographic region occupies a small area along 

the border of the planning area. In the eastern third of the planning area, generally east of the Kuskokwim 

River and south of the Swift River, lie the Tanana-Kuskokwim Lowlands, the Holitna Lowlands, and the 

Nushagak-Big River Hills. The Alaska Range physiographic region lies to the east of these regions.

3.2.3-2: Generalized 

Geology – Geology 

and Soils

Map 3.2.3-2 shows the generalized geology and soils within the planning area. The planning area consists

of ice; igneous, metamorphic, and sedimentary rocks; unconsolidated soils; and water. The planning area 

is primarily unconsolidated soils. Igneous and sedimentary rock make up the next largest geological units. 

Metamorphic rock occurs sporadically and is a minor geological component within the planning area. Ice 

occurs in higher elevations of the Alaska Range.

3.2.3-3: Soil Map 

Units – Geology and 

Soils

Map 3.2.3-3 shows 13 soil map units within the planning area. The predominant soil map units are Rough 

Mountain Lands in the Alaska Range and Haplocryods-Aquiturbels, Histroturbels-Haplocryods, 

Histoturbels-Dystrocryepts, Histoturbels-Dystrocryepts, Histoturbels-Eutrocryepts, Histoturbels-Rough 

Mountainous Land-Humic Dystrocryepts, and Histoturbels-Fibristels in the eastern half of the planning 

area. The predominant soil map unit in the Yukon Delta is Histoturbels-Fibristels. The predominant soil 

map unit north of the Yukon River to the far northwestern planning area boundary is HistoturbelsAquiturbels, with an area of Histoturbels-Cryorthents-Aquiturbels-Ruptic-Histic-Aquiturbels in the far 

northwestern corner of the planning area. The map also shows the INHT primary and connecting routes.

3.2.3-4: Geologic 

Groupings with 

Potential Fossil 

Occurrences – 

Geology and Soils

Map 3.2.3-4 shows 23 geological groupings with the potential to contain fossils. The predominant 

groupings are Flysch and Farewell basinal facies clastic and carbonate rocks that occur in and to the east 

of the Alaska Range; Kuskokwim Group undivided that occurs in higher elevations northwest and 

southwest of the Kuskokwim River; West Central Alaska mélange (Angayucham) in higher elevations just 

east of Russian Mission; Nonmarine to shelf sedimentary rocks that occur from north of St. Mary’s to the 

Kateel River along the eastern planning area boundary, and Volcanic greywacke and mudstone that 

occurs in a band to the west between Mountain Village and a point south of St. Michael. The map also 

shows the INHT primary and connecting routes.

3.2.4-1: Groundwater

Aquifers – Water 

Resources

Map 3.2.4-1 shows groundwater aquifers in the planning area, differentiating between BLM-managed land 

and other land. There are three categories shown: not a principal aquifer; coarse-grained quaternary 

deposits – locally comprised aquifers; and glaciers. The map also shows the INHT primary and connecting 

routes. The planning area is generally divided into the first two categories, as glaciers are only mapped in 

a small area of land in the Alaska Range. Locally comprised aquifers are generally in most of the Yukon 

Delta and Innoko NWRs and toward the eastern half of the planning area. Areas mapped as not a 

principal aquifer include the Nulato Hills area, large portions of the Alaska Range and Kuskokwim 

Mountains, and areas toward the center of the planning area. 
Volume 3: Maps BSWI Draft RMP/EIS

4 

Map Number and 

Title

Map Description

3.2.4-2: USGS 

Delineated HUC 

8/Level 4 Watershed 

Subbasins – Water 

Resources

Map 3.2.4-2 depicts U.S. Geological Survey (USGS)-delineated watershed subbasins in the planning 

area. The map also shows land ownership and the INHT primary and connecting routes. Subbasins wholly 

within the planning area, generally from west to east, include Yukon Delta, Chuilnuk River-Yukon River, 

Aniak, Holitna River, Stony River, and Middle Fork Kuskokwim River. The Kuskokwim Delta subbasin 

includes the southern half of the Yukon Delta NWR and extends beyond the planning area to the south. 

The Unalakleet, Norton Bay, and Buckland River subbasins occur in the northwestern portion of the 

planning area and extend outside the planning area to the west. The Selawik Lake, Huslia River, Kateel 

River-Koyukuk River, Galena-Yukon River, Lower Innoko River, Upper Innoko River, Takotna River, North 

Fork Kuskokwim, and Kantishna River subbasins occur at the northern end of the planning area and 

extend to the north and northeast. The Nowitna River subbasin is generally north of the planning area, 

and the Yentna River subbasin is generally east of the planning area, both with very small amounts of 

overlap.

3.2.5-1: Anadromous 

Waters Spawning 

Streams – Fisheries

Map 3.2.5-1 shows data from the ADF&G Anadromous Waters Catalog for the planning area, including 

rivers/stream and lakes/ponds and river/stream and lake/pond spawning habitat. The map also shows 

HUC 4/Level 2 watershed boundaries (Northwest Alaska, Lower Yukon River, Middle Yukon River, and 

Southwest Alaska), land ownership, and the INHT primary and connecting routes. Anadromous Waters 

Catalog rivers/streams are found throughout the planning area, with smaller segments of spawning 

habitat. Anadromous Waters Catalog lakes/ponds occur in the Yukon Delta NWR and include Lake 

Minchumina in the northeastern portion of the planning area as well as smaller lakes/ponds that are not 

identifiable at the scale of the map. The only apparent lake/pond spawning habitat is in the southeast 

portion of the planning area, in Lake Clark National Park, and in another lake to the west.

3.2.5-2: Pacific 

Salmon Essential Fish 

Habitat and Spawning 

Habitat – Fisheries

Map 3.2.5-2 shows Pacific salmon Essential Fish Habitat and spawning habitat, including river/stream 

habitat, lake/pond habitat, river/stream spawning habitat, and lake/pond spawning habitat. The map also 

shows HUC 4/Level 2 watershed boundaries (Northwest Alaska, Lower Yukon River, Middle Yukon River, 

and Southwest Alaska), land ownership, and the INHT primary and connecting routes. Pacific salmon 

river/stream habitat is shown in most planning area streams, with smaller segments of spawning habitat 

throughout the planning area. Pacific salmon lake/pond habitat occurs in two lakes in the Yukon Delta 

NWR, in Lake Minchumina in the northeastern portion of the planning area, and in smaller lakes/ponds 

that are not identifiable at the scale of the map. The only apparent Pacific salmon lake/pond spawning 

habitat is in the southeast portion of the planning area, in Lake Clark National Park.

3.2.5-3: Watershed 

Boundaries and 

Hydrography – 

Fisheries

Map 3.2.5-3 shows HUC 4/Level 2 watersheds within the planning area, rivers and streams on BLMmanaged lands (32,931 miles), and waterbodies (lakes and ponds) on BLM-managed lands (53,796 

acres). The map also shows BLM-managed lands. Four watersheds intersect the planning area: 

Northwest Alaska, which includes Unalakleet and the very northwest portion of the planning area; Lower 

Yukon River, which includes most of the north half of the Yukon Delta NWR and the Innoko NWR; 

Southwest Alaska, which includes a large portion of the southern and eastern planning area, including 

Bethel, Aniak, and McGrath; and Middle Yukon River, which includes a very small piece of the planning 

area in the northeast at Lake Minchumina. Rivers labeled on the map include the Kateel River, North 

River, Unalakleet River, Yukon River, Innoko River, Anvik River, Kuskokwim River, and Swift River. No 

waterbodies are apparent on the map.

3.2.5-4: Anadromous 

Waters and Spawning 

Habitat – Fisheries

Map 3.2.5-4 shows anadromous streams and waterbodies and anadromous spawning streams and 

waterbodies on BLM-managed lands. The map also shows the watersheds from Map 3.2.5-3 and BLMmanaged lands. Anadromous spawning streams are concentrated in the northwest portion of the planning 

area and in the area between the Lower Yukon and Innoko NWRs, west of the Yukon River, and are 

scattered elsewhere on BLM-managed lands. Anadromous streams are more prevalent throughout BLMmanaged lands. No anadromous waterbodies or anadromous spawning waterbodies are apparent on the 

map.
BSWI Draft RMP/EIS Volume 3: Maps

5 

Map Number and 

Title

Map Description

3.2.5-5: HUC 6/Level 

3 Watersheds and 

Locatable Mineral 

Potential – Fisheries

Map 3.2.5-5 shows areas of medium and high locatable mineral potential, as well as HUC 6/Level 3 and 

HUC 4/Level 2 watershed boundaries. The map also shows BLM-managed lands. Nearly all areas of 

medium and high mineral potential are the eastern half of the planning area, and most are in the 

Southwest Alaska watershed, with concentrations in higher elevation areas associated with the Alaska 

Range and the Kuskokwim and Ahklun Mountains. 

3.2.6-1: Vegetation 

Communities – 

Vegetation

Map 3.2.6-1 shows vegetation communities in the planning area in the following categories: bare ground, 

dwarf shrub, recently burned, forest, herbaceous, low shrub, non-vascular, urban, snow/ice, sparse 

vegetation, tall shrub, and water. The map also shows the INHT primary and connecting routes. Forested 

communities make up a large portion of the planning area and are most prevalent in northern and eastern 

areas. In the Yukon Delta NWR, where the extent of water is high, herbaceous and shrub vegetation are 

most prevalent. Snow/ice occurs in association with the Alaska Range. Burned areas are scattered, 

mostly in the eastern half of the planning area. Bare ground occurs in low amounts in the southeastern 

portion of the planning area, in association with higher elevation areas.

3.2.6-2: BLM Special 

Status Plants – 

Vegetation

Map 3.2.6-2 represents known occurrences of special status plants as points showing general locations 

within the planning area. The map includes three species: Douglasia beringensis (Bering dwarf-primrose), 

Koeleria asiatica (Eurasian junegrass), and Smelowskia pyriformis (candytuft). The map also shows land 

ownership and the INHT primary and connecting routes. There are nine mapped occurrences of 

Smelowskia pyriformis, most of which occur in higher elevation areas in the western portion of the 

planning area (Alaska Range and Lime Hills), with only one occurrence on BLM-managed lands. The rest 

are on State or Native land. There are five mapped occurrences of Douglasia beringensis, two in the 

same general area southwest of Lime Village (on Native or State land) and three on BLM-managed land 

in Nulato Hills in the general area of the Unalakleet and North Rivers. The single occurrence of Koeleria 

asiatica is on BLM-managed land southeast of Unalakleet.

3.2.7-1: USGS Bird 

Conservation Areas – 

Wildlife and Special 

Status

Map 3.2.7-1 shows bird conservation areas in the planning area on BLM-managed land and other land. 

With small exceptions, the entire planning area falls into five bird conservation areas. Three bird 

conservation areas fall under the larger category Northwestern Interior Forest: 1. Interior forest lowlands 

and uplands/interior bottom lands/Yukon flats (a large portion of the northern, central and eastern 

planning area); 2. Interior mountains/Ogilvie mountains (scattered sections in the northern half of the 

planning area); 3. Alaska Range/Wrangell Mountains/Copper Plateau (coincides with the Alaska Range 

and a portion of the Lime Hills in the eastern portion of the planning area). Two bird conservation areas 

fall under the larger category Western Alaska: 1. Ahklun and Kilbuck Mountains/Bristol Bay – Nushagak 

lowlands (central southern planning area, east of Bethel and mostly south of Aniak and including the 

Ahklun Mountains); and 2. Subarctic Coastal Plain/Seward Peninsula (most of the Yukon Delta NWR in 

the southwestern portion of the planning area. The map also shows the INHT primary and connecting 

routes.

3.2.7-2: Audubon 

Important Bird Areas – 

Wildlife and Special 

Status

Map 3.2.7-2 shows Audubon Important Bird Areas in the planning area, which are differentiated as Single

Species Core Areas, Coastal Bird Areas, and Interior Bird Areas. The map also shows land ownership 

and the INHT primary and connecting routes. Single Species Core Areas and Interior Bird Areas are 

shown in the same locations, which include a circular area in the Innoko NWR called the Iditarod River 

Lowlands and numerous areas in the Yukon Delta NWR (Andreafsky Wilderness, Yukon River Delta, 

Central Yukon-Kuskokwim, Cape Vancouver Marine, and Kuskokwim River Delta). There is one mapped 

Coastal Bird Area, Stebbins-St. Michael, mapped along the coast in the vicinity of and south of Stebbins 

and St. Michael.
Volume 3: Maps BSWI Draft RMP/EIS

6 

Map Number and 

Title

Map Description

3.2.7-3: Innoko 

Bottoms and 

Connectivity Corridors 

– Wildlife and Special 

Status

Map 3.2.7-3 shows the locations of connectivity corridors proposed under Alternatives B and C. There are 

two connectivity corridors mapped: north and south. The display of each connectivity corridor 

differentiates between the most permeable portion of the corridor and the wider linkage. The map also 

shows Innoko Bottoms (which is the proposed Innoko Bottoms Priority Wildlife Habitat Area), land 

ownership, water, and the INHT primary and connecting routes. Both connectivity corridors connect the 

Yukon Delta and Innoko NWRs. The North Connectivity Corridor runs east-west near the northern end of 

the Yukon Delta NWR, and north of Innoko Bottoms. The South Connectivity Corridor has an east-west 

and a north-south component, both of which include Innoko Bottoms. For both connectivity corridors, the 

most permeable portion is in the center of the corridor.

3.2.7-4: Caribou Herd 

Ranges - Seasonal 

Distribution – Wildlife 

and Special Status

Map 3.2.7-4 shows the locations of caribou herds, as represented by their total range, summer range, 

winter range, and calving ground. Information about eight caribou herds is included: Western Arctic, 

Sunshine Mountains, Beaver Mountains, Mulchatna, Farewell-Big River, Rainy Pass, Tonzona, and 

Denali. The map also shows land ownership and the INHT primary and connecting routes. The winter 

range and total range of the Western Arctic Caribou Herd includes the northern portion of the planning 

area/Nulato Hills area. The winter range and total range of the Mulchatna Caribou Herd occurs in the 

southeastern portion of the planning area, with summer range at the southern edge of the planning area, 

and a calving ground south of Lime Village. The Beaver Mountains Caribou Herd total range and summer 

range is shown west and southwest of McGrath. The Sunshine Mountains Caribou Herd total range and 

summer range is shown at the northern edge of the planning area, north of McGrath. The Tonzona 

Caribou Herd total range and summer range is at the east end of the planning area, near Denali National 

Park. In the same area, a small sliver of the Denali Caribou Herd total range intersects the Tonzona 

Caribou Herd total and summer range. The Rainy Pass Caribou Herd total range and summer range is at 

the east end of the planning area, generally south of the INHT. The Farewell-Big River Caribou Herd total 

range and summer range overlap those of the Rainy Pass Caribou Herd, but are mostly further to the west 

and northwest. 

3.2.7-5: Moose 

Habitat – Wildlife and 

Special Status

Map 3.2.7-5 shows moose habitat on BLM-managed land and non-BLM-managed land in the planning 

area. The map shows general moose distribution, known calving concentrations, known rutting 

concentrations, and known winter concentrations. The map also shows the INHT primary and connecting 

routes. General moose distribution covers the entire planning area except portions of the Alaska Range. 

Known calving concentrations are mapped along the Kuskokwim River between Lake Minchumina and 

Sleetmute and south of Sleetmute in the area between the Kuskokwim Mountains and Lime Hills. Known 

rutting concentrations are mapped south of the Innoko NWR, along the Kuskokwim River between Bethel 

and Aniak, west of the Kuskokwim River south of McGrath, and in an area west and south of the Alaska 

Range. Known winter concentrations are mapped near the northern tip of the planning area, along the 

Unalakleet River, in the Innoko NWR and south of this area, in the northern portion of the Yukon Delta 

NWR, east of the Kuskokwim River near Lime Village, along the Swift River, north of the Alaska Range, 

and in other small, scattered areas. 

3.2.7-6: Bison, Dall 

Sheep, & Muskox 

Habitat – Wildlife and 

Special Status

Map 3.2.7-6 shows habitat (range or distribution) for plains bison, wood bison, muskox and Dall sheep in 

the planning area. The map also shows land ownership and the INHT primary and connecting routes. 

Plains bison range is north of the Alaska Range, and there is a small amount of overlap with Dall sheep 

range near the intersection of the Tatina and South Fork Kuskokwim River, as shown in an inset box. The 

wood bison extent range extends from Bethel to the northern edge of the planning area at the Innoko 

NWR boundary. It encompasses the smaller wood bison core range within it. Muskox range is shown in 

the area north of the Unalakleet River. Dall sheep distribution is mapped in high elevation areas of the 

Alaska Range. 
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3.2.7-7: Potential Bat 

Habitat – Wildlife and 

Special Status

Map 3.2.7-7 shows potential bat habitat in the planning area, as identified based on the location of lode 

mines (information from the BSWI mineral potential report) and cave and karst resources. These locations 

are generally depicted as points. The map also shows land ownership and the INHT primary and 

connecting routes. There are 12 lode mine sites and two cave and karst resource sites, which are located 

throughout the east half of the planning area. Lode mines depicted on the map generally occur in higher

elevation areas and include Nixon Fork (active mine site), Independence Mine, Golden Horn Mine, 

Decourcy Mountain Mine, Kolmakof Mine, Cinnabar Chief Mine, Willis and Fuller Mine, Barometer Mine, 

Red Devil Mine, Mountain Top Mine, Broken Shovel Mine, and Cinnabar Creek Lode Mine. One of the 

cave and karst resource sites is Mystery Mountains located northwest of Nikolai, at the northern boundary 

of the planning area. The other cave and karst resource site is Lime Hills, located near Lime Village.

3.2.8-1: Nonnative 

Invasive Terrestrial 

Plant Occurrences – 

Wildlife and Special 

Status

Map 3.2.8-1 shows mapped occurrences of nonnative invasive terrestrial plants in the planning area. 

These are represented on the map as circles of varying sizes and colors that depict the number of 

occurrences in the mapped location (1, 2–5, 6–10, or 11–15). The map also shows land ownership, water,

and the INHT primary and connecting routes. Occurrences are mapped in Unalakleet and along the 

Unalakleet River to the east, near Grayling, along the Yukon River adjacent to the Innoko NWR, on the 

Innoko River in the Innoko NWR and outside the NWR to the east, and in/near Anvik, Shageluk, Holy 

Cross, Bethel, Upper Kalskag, Lower Kalskag, Chuathbaluk, Crooked Creek, Red Devil, Sleetmute, Stony 

River, McGrath, Takotna, and Lake Minchumina. Other occurrences occur along the INHT at the east end 

of the planning area, and northwest of Nikolai.

3.2.9.1: Historical Fire 

Occurrences – 

Wildland Fire

Map 3.2.9-1 shows historical fire occurrences within the planning area. The map also shows land 

ownership, water, and the INHT primary and connecting routes. The map depicts fire occurrences from 

data in various fire years between 1970 and 2016. Fires occurred predominantly on State of Alaska, 

USFWS, and BLM-managed lands. The largest acreages burned in these areas appear to be in the 1990 

to 1999 period of record. The largest acreages burned appear to be on lands in the north-central and 

northeastern planning area. Fewer and smaller size fires are shown in the western and southern portions 

of the planning area.

3.2.9-2: Historic 

Vegetation Fire 

Regimes – Wildland 

Fire

Map 3.2.9-2 shows historical vegetation fire regime groups and depicts water; sparsely vegetated areas; 

snow and ice; indeterminate fire regime characteristics; fire regime groups III, IV, and V; and barren areas. 

The map shows the Alaska Range and higher elevations south of Aniak as sparsely vegetated to barren 

with snow and ice. The northern and eastern portions of the planning area to the west of the Alaska 

Range show indeterminate regime characteristics and fire regime groups III and IV. The mountainous 

area between St. Michael and Mountain Village shows fire regime group V. The Yukon Delta south of the 

Yukon River generally shows indeterminate fire regime characteristics and significant open water. The 

map also shows the INHT primary and connecting routes.

3.2.9-3: Fuel Models –

Wildland Fire

Map 3.2.9-3 shows fuel models (non-burnable classes and Scott and Burgan 40 Models. The nonburnable fuel classes are developed lands, lands covered by permanent snow and ice, lands covered by 

open bodies of water, and barren land. The Scott and Burgan 40 Models represent various vegetation fuel 

sources. The map shows the Alaska Range as barren land non-burnable class. The Yukon Delta area 

south of the Yukon River generally shows non-burnable class 8 that is lands covered by open bodies of 

water and Scott and Burgan models representing grass and shrub fuels. The map shows that fuel models 

for the remainder of the planning area represent various grass, shrub, and timber fuel conditions. The 

map also shows the INHT primary and connecting routes.

3.2.11-1: Potential 

Fossil Yield 

Classification – 

Paleontological 

Resources

Map 3.2.11-1 shows the PFYC of BLM-managed and other lands within the planning area. It also includes 

areas of water, snow or ice, the INHT primary route, and connecting and side trails. No areas of “Very 

high” (PFYC 5) or “High” (PFYC 4) potential fossil yield have been identified in the planning area. Most of 

the planning area has a classification of “unknown” PFYC as it has not been studied.

3.2.12-1: Scenic 

Quality Rating – 

Visual Resources

Map 3.2.12-1 shows the Scenic Quality Ratings of all lands within the planning area. Most of the planning 

area is rated Class B. Class A lands are concentrated near the eastern boundary of the planning area. 

Class C lands are shown in the north and central part of the planning area. The map also shows the INHT 

primary and connecting routes.
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3.2.12-2: Sensitivity 

Level Rating – Visual 

Resources

Map 3.2.12-2 shows the visual resources Sensitivity Level Ratings for all lands in the planning area. The 

map also shows the INHT primary, contemporary, and connecting routes. Lands rated “High” include the 

Innoko and Yukon Delta NWRs, along the boundaries with national parks and refuges adjoining the 

planning area, around villages, and along the INHT. The remaining land in the planning area is rated as 

“Moderate” or “Low” for visual resources sensitivity. 

3.2.12-3: Visual 

Distance Zones – 

Visual Resources

Map 3.2.12-3 shows the Visual Distance Zones for all lands in the planning area. The map also shows the 

INHT primary, contemporary, and connecting routes. Most lands are rated “Seldom Seen.” Areas along

the coast, navigable rivers, and along the INHT are rated “Foreground-Middleground.” Outside of these 

areas, land is rated as “Background.” 

3.2.12-4: Visual 

Resource Inventory 

Class – Visual 

Resources

Map 3.2.12-4 shows the Visual Resource Inventory Class for BLM-managed land within the planning area. 

The classes are determined by combining the findings shown on Maps 3.2.12-1 through 3.2.12-3. VRI 

Class I includes 46,953 acres and are located around the Unalakleet WSR. VRI Class II includes 486,358 

acres and VRI Class III includes 1,760,037 acres and are scattered through the central planning area. VRI 

Class IV includes 11,172,455 acres and covers the majority of the planning area. The map also shows the 

INHT primary and connecting routes.

3.2.13-1: Inventoried 

Lands with Wilderness 

Characteristics – 

Lands with Wilderness 

Characteristics

Map 3.2.13-1 shows the inventory of lands with wilderness characteristics for BLM-managed land in the 

planning area. As shown on the map, nearly all areas have wilderness characteristics, with small locations 

scattered throughout the planning area that do not. The map also shows the INHT primary and connecting 

routes.

3.3.2-1: Permitted 

Grazing – Grazing 

Map 3.3.2-1 shows permitted grazing areas, land managers, management areas, water, and the INHT 

primary and connecting routes within the planning area. The only permitted grazing areas shown within 

the planning area are three small areas on BLM-managed land immediately adjacent to the western 

planning area boundary north of Unalakleet and northwest of the North River.

3.3.2-2: Suitable 

Grazing Habitat – 

Grazing 

Map 3.2.2-2 shows suitable grazing habitat within the planning area. The map also shows BLM-managed 

lands and the INHT primary and connecting routes. The predominant vegetation classes shown are dwarf 

shrub-lichen with greater than 20 percent lichen cover and spruce-lichen open woodland with greater than 

20 percent lichen cover. The predominant vegetation class in the Yukon Delta is dwarf shrub-lichen with 

more than 20 percent lichen cover, while an area southeast of the Kuskokwim River and north of the 

Togiak NWR shows interspersed lichen cover greater than 50 percent. The planning area west of the 

Innoko NWR and north of St. Michael to the Kateel River shows low shrub-lichen with more than 20

percent lichen cover. Northwest of the Kateel River are areas of dwarf shrub-lichen, low shrub-lichen with 

more than 20 percent lichen cover, and spruce-lichen open woodland with more than 20 percent lichen 

cover. The Innoko NWR and areas south to Aniak and east to McGrath show predominately dwarf shrublichen and spruce-lichen open woodland vegetation classes interspersed with lichen with more than 50 

percent cover in the vicinity of Holy Cross.

3.3.2-3: Suitable 

Grazing Habitat, 

Stuart Range, 

Stebbins, & St. 

Michael – Grazing 

Map 3.3.2-3 shows suitable grazing habitat in the Stuart Range, Stebbins, and St. Michael areas. The 

map depicts Natural Resource Conservation Service (NRCS) ecosites, land managers, management 

areas, water, and the INHT primary and connecting routes. The ecosites are lichen on lava flow, low shrub 

floodplain, drainageway sedge, and wet meadow sedge. Areas east of the canal on Stuart Island and 

small areas along the southern coastline provide low shrub floodplain and wet meadow drainage way 

sedge grazing habitat. Areas south and east of Stebbins provide low shrub floodplain and wet meadow 

sedge grazing habitat. Similar areas also are present south of St. Michael. Further south and east, 

drainages along the Kuiak, Nunavulnuk, Klikitarik Rivers and Quekilok Creek provide drainageway sedge 

grazing habitat. One area that provides lava flow lichen habitat is located west of Quekilok Creek on 

Native allotment land.
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3.3.3-1: Type and 

Distribution of Mineral 

Occurrences – 

Locatable and Salable 

Minerals

Map 3.3.3-1 shows the type and distribution of locatable and salable mineral deposits. The map shows 27 

mineral deposit types along with land managers, management areas, water, and the INHT primary and 

connecting routes. The majority of deposits occur in the eastern half of the planning area. Polymetallic 

vein deposits occur near Aniak and in the Alaska Range. Placer gold deposits also occur in the vicinity of 

Flat and McGrath. Southeast Missouri lead and zinc deposits occur northeast of McGrath. Polymetallic 

replacement deposits are shown in the higher elevations west of the Alaska Range. Other typical deposits 

in the Alaska Range include sedimentary exhalative zinc and lead, zinc-lead scarn, copper scarn, and 

thorium-rare-earth veins. A few deposits, primarily placer and epithermal quartz-alunite gold deposits, 

occur near and to the north of Marshall and Russian Mission. Placer gold deposits also are shown near 

the headwater of the Anvik River and on the Unalakleet River. One porphyry lead-molybdenum deposit is 

shown in the Innoko NWR.

3.3.3-2: Mining 

Districts and Mining 

Claims – Locatable 

and Salable Minerals

Map 3.3.3-2 shows mining districts and mining claims for locatable and salable minerals. The map also 

shows land ownership, water, and the INHT primary and connecting routes. Within the Aniak Mining 

District, approximately 20 state of Alaska mining claim areas are shown, with approximately six mining 

prospecting sites on BLM-managed land southeast of Red Devil. Two federal mining claim areas are 

shown south of Lower Kalskag. Within the McGrath Mining District, three State of Alaska mining claim 

areas are shown in the Alaska Range and a fourth northwest of Nikola along with a federal mining claim. 

Other State of Alaska mining claim areas are shown southwest of McGrath. Within the Innoko Mining 

District, eight state of Alaska mining claim areas are shown along with one federal mining claim area. 

Within the Iditarod Mining District, two state of Alaska mining claim areas and nine mining prospecting 

sites are shown. There are approximately five federal mining claim areas in the vicinity of Flat. 

3.3.3-3: Locatable 

Mineral Potential – 

Locatable and Salable 

Minerals

Map 3.3.3-3 shows locatable mineral potential with the planning area, along with land ownership, water, 

and the INHT primary and connecting routes. Medium potential areas are more prevalent and larger in 

land area that high potential areas, and these areas generally occur in the eastern half of the planning 

area on BLM- and State-managed lands. One medium potential area is shown in the southeastern corner 

of the Yukon Delta NWR, and approximately three medium potential areas with embedded high potential 

areas are located on BLM-managed land between Marshall and Russian Mission. These areas are 

typically associated with the Alaska Range and higher elevation areas. These mineral potential areas 

generally are located in the Alaska Range and higher elevations to the west and in a north to south band 

east of the Kuskokwim River from McGrath to Aniak, then south of the Kuskokwim River to the southern 

planning area boundary. 

3.3.3-4: Placer Mining 

Areas and Lode 

Deposits with 

Significant Production 

– Locatable and 

Salable Minerals

Map 3.3.3-4 shows placer mining areas and lode deposits with significant production within the planning 

area. The map also shows land ownership, water, and the INHT primary and connecting routes. There are 

24 named placer mining areas and 12 lode deposits. Five of the largest placer mining areas are just west

of McGrath and Takotna. These larger placer mining areas are generally in a line from northwest of 

McGrath to southwest of Flat and east of the Innoko NWR. Four smaller placer mining areas occur south 

and northeast of McGrath. Three placer mining areas occur northeast of Aniak with seven to the south 

near the southern planning area boundary. Three placer mining areas are located in the vicinity of 

Russian Mission. Lode deposits include Terra North in the Alaska Range, White Mountain Mine, Nixon 

Fork Mine northwest of Nikolai, Independence Mine west of McGrath, Golden Horn Mine near Flat with 

Decourcy Mountain Mine to the southwest. Alice and Bessie, Parks Prospect, and Red Devil Mines are 

located near Red Devil, with Mountain Top Mine to the southeast. Kolmakof Mine is located east of Aniak, 

and Cinnabar Creek Lode is located to the south near the southern planning area border. 

3.3.4-1: Coal and Coal 

Gas Potential – 

Leasable Minerals

Map 3.3.4-1 shows coal and coal gas potential for leasable minerals in two basins and one district. Land 

managers and managed areas, water, and the INHT primary and connecting routes are also shown. The 

Lower Koyukuk Basin lies east of the northern parcel of the Innoko NWR and intersects the western 

Koyukuk NWR area. The basin lies along the eastern boundary of the BLM-managed lands between 

North River and the Kateel River. The Minchumina Basin is situated southeast of McGrath and northwest 

of the Alaska Range. The Nelson Island District is a small area that lies within the Yukon Delta between 

Tununak and Toksook Bay.
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3.3.4-2: Oil and Gas 

Potential Areas – 

Leasable Minerals

Map 3.3.4-2 shows five oil and gas basins for potential leasable minerals. Land managers and managed 

areas, water, and the INHT primary and connecting routes are also shown. The Minchumina Basin is 

located east of McGrath in the northeastern portion of the planning area. The Holitna Basin is located in 

the southeastern planning area between Stony River and Lime Village. The Innoko Basin is located within 

the Innoko NWR. The Bethel Basin is located in the southwestern portion of the Yukon Delta NWR. The 

Galena Basin is located in the far northern planning area, generally northeast of the North River and east 

of the Kateel River, and intersects the Koyukuk NWR and northern parcel of the Innoko NWR. Portions of 

the Galena, Holitna, and Minchumina Basins intersect BLM-managed lands.

3.3.4-3: Geothermal 

Potential – Leasable 

Minerals

Map 3.3.4-3 shows geothermal potential for leasable minerals. Land managers and managed areas, 

water, and the INHT primary and connecting routes are also shown. Five geothermal areas are shown 

north of the planning area and one to the southeast. One of the geothermal areas intersects the far 

northwestern corner of the planning area. Two hot springs are shown in the planning area south of the 

Kuskokwim River. Hot Spring Creek is located south of Aniak at the eastern boundary of the Yukon Delta 

NWR. The Upper Chuilnuk River hot spring is located to the east, slightly southwest of Red Devil.

3.3.5-1: Public Land 

Orders – Lands and 

Realty

Map 3.3.5-1 shows the major PLOs within the planning area. PLO 5180 is the largest, indicated by a 

dotted pattern, and extends throughout much of the planning area. PLO 5184, indicated by a purple 

vertical-lined pattern, covers the second largest amount of land in the planning area, including areas north 

and south of Unalakleet, spotted areas near Grayling, Shageluk, and Holy Cross, areas east and west of 

Aniak, and areas surrounding Crooked Creek, Red Devil, Sleetmute, Stony River, and Lime Village. PLO 

5173, indicated by a green horizontal-lined pattern, covers the third largest amount of land in the planning 

area and follows the boundary of BLM-managed land from the northern-most portion of the planning area 

south toward Grayling and includes a few smaller areas near Holy Cross as well as scattered areas of 

BLM-managed land in the northeast corner of the planning area. PLO 5172 (shown by a red diagonallined pattern), PLO 5179 (shown by an orange crisscrossed pattern), and PLO 5186 (shown by a solid 

pink pattern) all cover much smaller areas within the planning area, primarily in the southern portion of the 

planning area, with the exception of PLO 5179, which also includes area surrounding the Unalakleet Wild 

River Corridor. The map also shows land managers and managed areas, water, and the INHT primary 

and connecting routes.

3.3.7-1: 

Transportation 

Networks – Travel and 

Transportation

Map 3.3.7-1 shows the existing transportation system within the planning area. The map also shows land 

ownership and water. The INHT primary route, shown as a yellow line outlined in black, traverses through 

the entire planning area, entering the western boundary just north of Unalakleet and following the 

Unalakleet River to Kaltag, then veering south through the Innoko NWR to Flat, then travelling northeast 

to McGrath, then veering southeast where it exits the planning area. The Iditarod contemporary route, 

shown as a pink dotted line, enters the western boundary of the planning just north of Unalakleet and 

follows the Unalakleet to Kaltag, then travels south along the western boundary of the Innoko NWR to 

Anvik, then turns east toward Iditarod, where it turns north-northeast until it exits the planning area. INHT

connecting/side trails include segments just west of Iditarod and just south of Flat, a segment travelling 

from Flat toward Takotna, some trail segments veering west and northwest, and other trail segments

traveling east then southeast to exit the planning area. There are limited roads in the planning area that 

are concentrated around existing communities. 

3.3.8-1: Wind 

Resources – 

Renewable Energy

Map 3.3.8-1 shows wind resources in the planning area, as represented by wind power class wind speed 

at a height of 50 meters. The categories are 1 – Poor Resource Potential (0.0-12.5 mph [miles per hour]); 

2 – Marginal Resource Potential (12.5-14.3 mph); 3 – Fair Resource Potential (14.3-15.7 mph); 4 – Good 

Resource Potential (15.7-16.8 mph); 5 – Excellent Resource Potential (16.8-17.9 mph); 6 – Outstanding 

Resource Potential (17.9-19.7 mph); and 7 – Superb Resource Potential (>19.7 mph). The figure notes 

that windspeeds are based on a Weibull k value of 2.0. Most of the planning area is in Category 1, with 

areas of higher potential concentrated in the western portion of the planning area, particularly along the 

coast. Small areas of Marginal to Superb Resource Potential occur scattered throughout the rest of the 

planning area, with one area of note north of the Alaska Range. The map also shows the INHT primary 

and connecting routes. 
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3.3.8-2: Forest 

Biomass – Renewable 

Energy

Map 3.3.8-2 shows forest biomass renewable energy potential in the planning area, based on the location 

of deciduous forest (open-closed) or white spruce or black spruce deciduous (open-closed); white spruce 

or black spruce (open-closed) or white spruce or black spruce (woodland); and white spruce or black 

spruce/lichen (woodland-open). These forest types occur over much of the northern, central, and centralsouthern portions of the planning area and exclude most of the Yukon Delta NWR, the Alaska Range, and 

the Ahklun Mountains. The map also shows BLM-managed lands and the INHT primary and connecting 

routes. 

3.3.8-3: Peat 

Occurrences – 

Renewable Energy

Map 3.3.8-3 shows peat occurrences in the planning area. They include occurrences mapped based on 

NRCS STATSGO Soil Texture, as well as two proposed Donlin Project peat exploration locations. NRCS 

peat occurrences occur over most of the planning area, with large gaps in coverage at the Alaska Range, 

west of the Kuskokwim River, and at the Ahklun Mountains. The proposed Donlin Project peat exploration 

locations are shown in an inset box, which is in the general vicinity of Crooked Creek. They include the 

Tango Area near Tango Creek and the Kolmakof Area near the Kolmakof River. The map also shows 

BLM-managed lands and the INHT primary and connecting routes. 

3.3.8-4: Photovoltaic 

Solar Resources – 

Renewable Energy

Map 3.3.8-4 shows photovoltaic solar resources, represented in terms of annual kilowatt hours in square 

grids throughout the planning area. Most of the planning area is 3501–4000 or 3001–3500 annual kilowatt 

hours. There are two exceptions along the coast, where the partial grids depicted are 2501–3000 annual 

kilowatt hours. The map does not show areas 2188–2500 or 4001–4500 annual kilowatt hours, although 

these categories are included in the legend. The map also shows the INHT primary and connecting 

routes.

3.4.1-1: Existing Areas 

of Critical 

Environmental 

Concern (ACECs) – 

ACEC

Map 3.4.1-1 shows the locations of the currently existing ACECs in the planning area. These include Box 

River Treeline Research Natural Area, Kateel River, Gisasa River, Inglutalik River, Ungalik River, 

Shaktoolik River, North River, Drainages of the Unalakleet River, Anvik River, Peregrine Falcon Nesting 

Habitat, and Kuskokwim River Nesting Habitat ACECs. The map also shows land ownership, water, and 

the INHT primary and connecting routes.

3.4.1.2: Potential 

ACECs (Existing and 

Nominated ACECs 

that Meet Relevance 

& Importance) – 

ACEC

Map 3.4.1-2 shows the existing and nominated ACECs that were considered in creating the alternatives. 

Existing ACECS considered include Kateel River, Gisasa River, Inglutalik River, Ungalik River, Shaktoolik 

River, North River, Drainages of the Unalakleet Rive, and Anvik River. Newly nominated ACECs include

Tagagawik River, Kateel River, Gisasa River, Nulato River, Unalakleet, Unalakleet River Watershed, 

Tenmile River Watershed, Anvik River Watershed, Anvik Traditional Trapping Area, Sheefish, and Swift 

River Whitefish ACECs. The map also shows land ownership, water, and the INHT primary and 

connecting routes.

3.4.2-1: Iditarod 

National Historic Trail 

– National Trails

Map 3.4.2-1 shows the location of the INHT and connecting and side trails. The INHT primary route, the 

contemporary route, and the Iditarod federal ANILCA conservation system unit locations along the route 

are shown. The map also shows land managers and managed areas and water.

3.4.3-1: Existing and 

Eligible Wild & Scenic 

Rivers – Wild & 

Scenic Rivers (WSR)

Map 3.4.3-1 shows the locations of designated or eligible Wild and Scenic River segments on BLMmanaged land in the planning area. These include the designated Unalakleet Wild River Corridor and the 

eligible waterways of North Fork Unalakleet, Anvik River, Swift River (Anvik), Otter Creek (Anvik), Canyon 

Creek, Yellow River, Theodore Creek, Yukon River, Otter Creek (Tuluksak), Tatlawiksuk River, 

Blackwater Creek, Big River, Middle Fork North Fork Kuskokwim River, Pitka Fork Middle Fork 

Kuskokwim River, Sheep Creek, Sullivan Creek, Bear Creek (Nikolai) and Salmon River (Nikolai). The 

map also shows land managers and managed areas, water, and the INHT primary and connecting routes.
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3.5.1-1: Social and 

Economic Conditions 

– Socioeconomic 

Regions and 

Communities

Map 3.5.1-1 shows the designations of socioeconomic regions and game management subunits in the 

planning area. Regions shown include Lower Kuskokwim (Bethel, Kalskag, and Aniak), Upper Kuskokwim 

(Crooked Creek, Red Devil, Sleetmute, and Stony River), Lower Yukon (Grayling, Anvik, Shageluk, and 

Holy Cross), Yukon Delta (Mountain Village, Pitkas Point, St. Mary’s, Pilot Station, Marshall, and Russian 

Mission), Bering Seas (Shaktoolik, Unalakleet, St. Michael, and Stebbins), Nulato Hills (Koyukuk, Nulato, 

and Kaltag), and Western Interior (Takotna, McGrath, and Nikolai). Game management subunits in the 

planning area include 18Z; 19A, B, C, and D; a small portion of 20C; 21E; parts of 21A, B, and D; most of 

22B; and a small part of 24D. The map also shows land managers and managed areas, water, and the 

INHT primary and connecting routes.

3.5.2-1: Federally 

Permitted Subsistence 

Hunts, Subsistence 

Resources Search 

and Harvest Areas - 

Subsistence

Map 3.5.2-1 shows federally permitted subsistence hunt areas and subsistence search and harvest areas. 

BLM-managed subsistence moose hunt areas are located in game management subunits 22A and B. The 

musk ox subsistence hunt is located in game management subunit 22B. “Search and Harvest” locations 

are shown for Norton Sound/Unalakleet communities (Unalakleet) located in the northwest corner of the 

planning area, Yukon Communities (Anvik, Grayling, Holy Cross, Marshall, Nulato, Russian Mission, and 

Shageluk) located primarily in the central portion of the planning area, and Kuskokwim Communities 

(Aniak, Bethel, Crooked Creek, Chuathbaluk, Kalskag, Lime Village, Lower Kalskag, McGrath, Nikolai, 

Sleetmute, and Stony River) located in the southern half of the planning area. The map also shows land 

managers and managed areas, water, and the INHT primary and connecting routes.