JIM BRIDGER

PACIFIC MINERALS

(9.5 MT)(A)

STANSBURY

(P)

BLACK BUTTE

KCP INC.

BITTER CREEK

COAL CO.

(5 MT)(A)

ELK MOUNTAIN

ARCH COAL INC.

(6 MT)(A)

SEMINOE II (R)

MEDICINE BOW 

(R)

KEMMERER

PITTSBURG & MIDWAY

(7 MT)(A)

Medicine

Bow

Saratoga

Rawlins

Sinclair

Bairoil

Wamsutter

La Barge

Big Piney

Marbleton

Rock Springs

Green River

Granger

Mountain View

Opal

Lyman

Diamondville

Kemmerer

Cokeville

Evanston

Thayne

Alpine

Afton

North Rock

Springs

LINCOLN COUNTY

SUBLETTE COUNTY

UINTA COUNTY

SWEETWATER COUNTY

CARBON COUNTY

110°

111°

109° 107°

108°

43°

43°

42°

42°

41°

41°

10 0 10 20 30 40 50 KILOMETERS

SCALE 1: 500 000

10 0 10 20 30 40 MILES

Teton Wind

White Mountain

(360 MW)(240)(P)

Star Valley Cheese Plant

Western Dairyman Company

Strawberry Creek

Lower Valley Energy Inc.

(1.5 MW)

Afton Wood Products Plant

Trico Timber Inc.

(9 MW)(w)

Pacificorp

Naughton

(707.2 MW)

Wyoming Wind

Energy Center

FPL Energy

Wyoming Wind LLC

(144 MW)(80)

Edison Mission Group

Mountain Wind

(60.9 MW)(29)

Fontenelle

U.S. Bureau of Reclamation

(10 MW)

Big Island Trona Mine and Refinery

Rhone-Poulnec Co. of Wyoming

Cogeneration (? MW)(N)

Alchem Trona Mine and Refinery

General Chemical Corporation

(30 MW)(N)

Blacks Fork Trona Refinery

Tg Soda Ash, Inc.

Westvaco Trona Mine and Refinery

FMC Wyoming Corporation

(55.5 MW)(N)

Tenneco Minerals Company

Green River Trona Refinery

Jim Bridger

Pacificorp

(2317.7 MW)

Sierra Madre

Anschutz Corporation

(650 MW)(325)(P)

Chokecherry

Anschutz Corporation

(1350 MW)(675)(P)

Kortes

U.S. Bureau of Reclamation

(36 MW)

Seminoe

U.S. Bureau of Reclamation

(51.6 MW)

Dunlap Pacificorp

(111 MW)(74)

Seven Mile Hill Pacificorp

(99 MW)(66)

Medicine Bow

Platte River Power Authority

(8.6 MW)(10)

McFadden

Pacificorp

(88.5 MW)(59)

Foote Creek Rim

AES SeaWest

(84.8 MW)(133)

Rock River LLC

AES SeaWest

( 50 MW)(50)

Hanna Site

U.S. Department of Energy

 (A)

Simpson Ridge

(300 MW)(199)

North Knobs

(I)

Cumberland Flats

Commissary Ridge

Little Colorado Desert

B R I D G E R N A T I O N A L F O R E S T

Mc Dougal

Pass

Sage Creek Mtn Haystack 

Buttes

Sublettes 

Flat

G R E E N

R I V E R

B A S I N

B R I D G E R

B A S I N

ROCK

SPRINGS

UPLIFT Quaking Asp Mtn

Oregon 

Buttes

The Pinnacles

Alkali

Basin

Black Rock Flat Lost Creek

Basin

R E D D E S E R T B A S I N

G R E A T

D I V I D E

B A S I N

W A S H A K I E

B A S I N

Lost Soldier DIvide

Delaney Rim

Red Rim

Atlantic Rim

Bridger 

Pass

Severson Flats

Sand Basin

Haystack Mountains

Point of

Rocks

FERRIS MOUNTAINS

SEMINOE MOUNTAINS

SHIRLEY MOUNTAINS

Pedro Mts

KINDT

BASIN

SIERRA MADRE

M E D I C I N E

B O W N A T I O N A L

F O R E S T

Pennock Mtn

Beaver Creek Hills

MEDICINE BOW 

Shirley Basin

HOBACK

BASIN

B R I D G E R

N A T I O N A L

F O R E S T

Battle Spring Flat

H A N N A

B A S I N

Approximate surface trace

of the Darby Thrust Fault system,

which divides the Hamms Fork

Coal Field from the Green River

Coal Field

FORK

HAMS

COAL

FIELD

GREEN RIVER COAL FIELD HANNA

COAL

FIELD

ROCK

SPRINGS

MINING

DISTRICT

SUPERIOR

MINING

DISTRICT

POINT

OF

ROCKS

MINING

DISTRICT

ELK

MOUNTAIN

MINING

DISTRICT

HANNA

MINING

DISTRICT

MEDICINE

BOW

MINING

DISTRICT

KEMMERER

MINING

DISTRICT

ALMY

MINING

DISTRICT

191

189 

237

238

236

241

89

89

89

30

354

352

353

351

232

240

372

28

28

189

350

191

191

191

189

189

487

77

72

71

789

70 230

13

130

789

287

30

30

80

UPRR

UPRR

UPRR

414

410

414

530

430

370

371

89

150

412

Index map showing the location of the state of Wyoming

in the conterminous United States of America

Fremont

Park

Sweetwater

Carbon

Natrona

Teton 

Sublette

Albany

Campbell

Lincoln

Johnson

Converse

Crook

Big Horn

Laramie

Niobrara

Uinta

Weston 

Platte

Sheridan

Washakie

Hot Springs

Goshen 

110° 108° 106° 104°

45°

44°

43°

42°

41°

Index map showing the location of the Wyoming Landscape Conservation Initiative, southwestern

Wyoming.

U N I T E D S TAT E S

WYOMING

EXPLANATION

Note: because the coal map of Wyoming (Jones and others, 2009), was published as GIS layers, some of the data,

symbology, and many of the annotations included on this plate were taken directly from that source.

Pacificorp

Naughton

(707.2 MW)

Afton Wood Products

Trico Timber Inc.

(9 MW) (w)

Strawberry Creek

Lower Valley Energy

(1.5 MW)

Foote Creek Rim

AES SeaWest

(84.8 MW)(133)

JIM BRIDGER

PACIFIC MINERALS

9.5 MT (A)

Wyoming Landscape Conservation Initiative boundary—Study area boundary

Coal bed outcrops—May include coal subcrop (where outcrop has burned or 

weathered). Includes coal beds four feet or greater in thickness that can be 

mapped at the scale of this map. Where coal beds are closely spaced, a line may 

represent more than one bed. Because of varying scales and different accuracies 

of maps used in compilation, outcrops may not necessarily agree with mapped 

formation boundaries (from Jones and others, 2009)

Generalized coal rank—Colors indicate rank within coal fields (Trumbull, 1960; 

modified from Tully, 1996). [Some coal-rank colors may not exactly match 

colors on the map due to the use of transparancies to create the map]

Medium and high volatile bituminous—The most abundant coal type, intermediate in 

rank between subbituminous coal and anthracite. High volatile bituminous coal is 

classified on the basis of its calorific value on a moist, ash free basis (ranging 

from 24 to 33 megajoules per kilogram; 10,500 to 14,000 British thermal units 

per pound (Btu/lb) (Encyclopædia Britannica, 2010)

Medium and high volatile bituminous/areas of doubtful value for coal—These 

may be divided into three classes: (1) areas containing thin or irregular beds, 

which locally may be thick enough to mine, (2) areas in which coal is of poor 

quality, and (3) areas where information on the thickness and quality of coal beds 

is meager or lacking (Trumbull, 1960)

Subbituminous—Generally dark brown to black coal, intermediate in rank 

between lignite and bituminous coal. Subbituminous coal contains 42 to 52 

percent carbon (on a dry, ash-free basis) and has calorific values ranging from 

about 19 to 26 megajoules per kilogram (about 8,200 to 11, 200 Btu/lb), 

Encyclopædia Britannica, 2010

Subbituminous/areas of doubtful value for coal—See medium and high volatile 

bituminous/areas of doubtful value for coal, above

U.S Geological Survey National Coal Resource Assessment areas—Boundaries 

represent coal beds and zones that were identified and characterized for the 1999 

National Coal Resource Assessment in the Northern Rocky Mountains and Great 

Plains region (U.S. Geological Survey Fort Union Coal Assessment Team, 1999). 

Color variations due to the use of transparent polygons in the map construction. 

U.S. Geological Survey National Coal Resource Assessment coal apparent rank—Point 

representation of coal quality sample indicating classification of coal according to 

the degree of metamorphism, progressive alteration, or coalification (maturation) 

in the natural series from lignite to anthracite, following the American Society 

for Testing and Materials, 1994, D338–92a, p. 168–171 (from U.S. Geological 

Survey Fort Union Coal Assessment Team, 1999). 

Bituminous

Subbituminous

U.S. Geological Survey National Oil and Gas Assessment units—Boundaries 

represent the geologic limit of coalbed gas assessment units (AU) as defined for 

the 2002 assessment of undiscovered oil and gas resources in the southwestern 

Wyoming Province (U.S. Geological Survey Southwestern Wyoming Province 

Assessment Team, 2005) and the assessment of undiscovered oil and gas 

resources of the Wyoming Thrust Belt Province, 2003 (Kirschbaum and others, 2004)

U.S. Geological Survey National Coal Resources Data System (NCRDS) 

Stratigraphic Data Locations—Point locations of stratigraphic data from drill 

holes, measured sections, cores, and surface and underground coal mines that are 

stored in the NCRDS stratigraphic database (USTRAT), see 

http://energy.er.usgs.gov/coal_quality/coal_databases.html 

Coal mines

Surface coal mine—Shaded blue areas indicate permit areas for active mines; 

hatched area indicates mined out/reclaimed areas. Active, proposed, or inactive 

mines (as of February, 2010) include mine name, permit number, mine type 

(surface, underground, or both) and mine status. Symbol indicates approximate 

location of pits for abandoned mines and can represent more than one pit. 

Abandoned mines with limited areal extent are unlabeled (from Jones and others, 

2009)

Underground coal mine—Approximate location of entrance, shaft, or underground 

mine workings. Active mines (as of December, 2008) include name, company, 

permitted or proposed productive capacity in millions of short tons (MT), and 

status (A=active). Symbol can represent more than one entry or mine. Abandoned 

mines are unlabelled (from Jones and others, 2009)

Prospect—Approximate location of shallow pit or underground entry; symbol can 

represent more than one prospect (from Jones and others, 2009)

In-situ coal gasification projects—Name of project and status (I=inactive or 

abandoned, A=active) as of December, 2008 (from Jones and others, 2009)

Electrical generating plants—Plant name, company name, and nameplate capacity in 

megawatts (MW) as of December, 2008 (A=abandoned, W=wood) (from Jones 

and others, 2009)

Coal-fired power plant

Cogeneration power plant—Abbreviations for fuel used are: c, coal; d, diesel; n, 

natural gas; x, unknown

Hydroelectric power plant

Wind generating power project—Capacity in MW is total for all units. Number 

after capacity indicates approximate number of units; symbol may represent more 

that one unit (uppercase P indicates proposed).

Industrial facilities using coal—Plant name and company as of December, 2008 (from 

Jones and others, 2009)

Coal-fired industrial plant

Wind turbine locations—Locations of wind turbines within Wyoming as of August, 

2009. The locations are derived from the Nation Agriculture Imagery Program 

(NAIP), August 2009, true color imagery and have a positional accuracy of 

approximately ±5 m (O’Donnell and Facher, 2010) 

Atlantic Rim coalbed natural gas well status—Location and status of coalbed 

natural gas wells as of 2009 (Quillinan and others, 2009)

Shut-in well

Producing coalbed natural gas well

Permitted coalbed natural gas well

Injection well

Abandoned coalbed natural gas well

Dry hole

Waiting for permit

Atlantic Rim coalbed natural gas leasing units—Location of authorized and 

pending oil and gas units as of 2009 (from Quillinan and others, 2009)

Bureau of Land Management (BLM) coalbed natural gas units—Locations of 

authorized and pending coalbed gas units as of June, 2010

Coalbed natural gas wells from the Wyoming Oil and Gas Conservation 

Commission—June 2010

Rawlins–Little Snake River area geology and coal stratigraphy—Locations of 

coal correlation chart drill holes and lines of measured sections (from Hettinger 

and others, 2008)

Coal correlation chart drill holes

Lines of measured stratigraphic sections

Interstate route

Federal route

State highway

County boundary

Railroad—Colored to indicate major coal unit train route; closed loops are unit train 

loadout facilites. Ownership of trackage: UPRR, Union Pacific Railroad Company. 

(from Jones and others, 2009)

Electrical transmission line—Only transmission lines of 115 KV and greater are 

shown (from Jones and others, 2009)

North Knobs

(I)

UPRR

Star Valley Cheese Plant Western Dairyman Company

72

30

80

SELECTED REFERENCES

Environmental Systems Research Institute, Inc. (ESRI), 2010, ESRI_World_Physical_Map, ArcGIS 

Online Services – Ready-to-Use Content on Demand: ©ESRI, Redlands, Calif., Available at 

http://www.esri.com/software/arcgis/arcgisonline/index.html.

Hettinger, R.D., Honey, J.G., Ellis, M.S., Barclay, C.S.V., and East, J.A., 2008, Geologic map of 

Upper Cretaceous and Tertiary strata and coal stratigraphy of the Paleocene Fort Union 

Formation, Rawlins–Little Snake River area, south-central Wyoming: U.S. Geological Survey 

Scientific Investigations Map 3053, 3 sheets. Available at http://pubs.usgs.gov/sim/3053/.

Jones, N.R., Jones, R.W., Scott, J.E., and Lucke, D.W., 2009, Coal Map of Wyoming, Wyoming 

State Geological Survey Map Series 93. Accessed on Jan. 27, 2012 at

http://www.wsgs.uwyo.edu/AboutWSGS/coal.aspx.

Kirschbaum, M.A., Charpentier, R.R., Crovelli, R.A., Klett, T.R., Pollastro, R.M., and Schenk, C.J., 

2004, Assessment of Undiscovered Oil and Gas Resources of the Wyoming Thrust Belt 

Province, 2003: U.S. Geological Survey Fact Sheet 2004–3025, 2 p. Available at 

http://pubs.usgs.gov/fs/2004/3025.

O’Donnell, M.S., and Fancher, T.S., 2010, Spatial mapping and attribution of Wyoming wind 

turbines: U.S. Geological Survey Data Series 524. Available at http://pubs.usgs.gov/ds/524.

Quillinan, S.A., Worman, B.N., Rodgers, J.R., 2009, Coalbed natural gas activity in the Atlantic 

Rim area, Carbon County, Wyoming, Wyoming State Geological Survey Open-File Report 

09–7. Accessed on Jan. 27, 2012 at 

http://www.wsgs.uwyo.edu/NewsCenter/PressReleases/Jan25_2010.aspx.

Trumbull, J.B.A., 1960, Coal fields of the United States, exclusive of Alaska, sheet 1: U.S. 

Geological Survey, scale 1:1,500,000. 

Tully, John, compiler, 1996, Coal fields of the Conterminous United States, U.S. Geological Survey 

Open-File Report 96–92. Available at http://pubs.usgs.gov/of/1996/of96-092/

U.S. Geological Survey Fort Union Coal Assessment Team, 1999, Resource assessment of selected 

Tertiary coal beds and zones in the northern Rocky Mountains and Great Plains region: U.S. 

Geological Survey Professional Paper 1625–A, v. 1.2. Available at 

http://pubs.usgs.gov/pp/p1625a/.

U.S. Geological Survey Southwestern Wyoming Province Assessment Team, 2005, Petroleum 

systems and geologic assessment of oil and gas in the Southwestern Wyoming Province, 

Wyoming, Colorado, and Utah: U.S. Geological Survey Digital Data Series DDS–69–D, v. 

1.0. Available at http://pubs.usgs.gov/dds/dds-069/dds-069-d/.

Wyoming Oil and Gas Conservation Commission (WOGCC), 2010, Home page: Casper, Wyo., 

Wyoming Oil and Gas Conservation Commission. Accessed on Jan. 27, 2012, at 

http://wogcc.state.wy.us/.

U.S. Department of the Interior

U.S. Geological Survey

Data Series 683

Plate 1 of 5

Base derived from ESRI World Physical Map, accessed in 2012, at 

http://www.esri.com/software/arcgis/arcgis-online-map-and-taskservices/map-services.html

Projection: Lambert Conformal Conic

Central meridian, 107.5° West

Standard Parallel 1, 20° North

Standard Parallel 2, 60° North

Latitude of origin: 40° North

North American Datum of 1983 (NAD 83)

Edit and cartographic layout by L.J. Binder

Energy Map of Southwestern Wyoming, Part A—Coal and Wind

By

Laura R.H. Biewick1

 and Nicholas R. Jones2

2012

Any use of trade, product or firm names is for descriptive purposes only and 

does not imply endorsement by the U.S. Government.

Although this information product, for the most part, is in the public domain, it 

also contains copyrighted materials as noted in the text. Permission to 

reproduce copyrighted items for other than personal use must be secured 

from the copyright owner.

Although these data have been processed successfully on a computer system 

at the U.S. Geological Survey, no warranty expressed or implied is made 

regarding the display or utility of the data on any other system, or for general 

or scientific purposes, nor shall the act of distribution constitute any such 

warranty. The U.S. Geological Survey shall not be held liable for improper or 

incorrect use of the data described and/or contained herein.

This and other USGS information products are available at

http://store.usgs.gov/ 

U.S. Geological Survey

Box 25286, Denver Federal Center

Denver, CO 80225

To learn about the USGS and its information products visit

http://www.usgs.gov/ 

1-888-ASK-USGS

This report is available at:

http://pubs.usgs.gov/ds/683 

Publishing support provided by: 

Denver Publishing Service Center

Manuscript approved for publication on March 30, 2012

For more information concerning this publication, contact:

Center Director, USGS Central Energy Resources Science Center

Box 25046, Mail Stop 939

Denver, CO 80225

(303) 236-1647

Or visit the Central Energy Resources Team site at:

http://energy.cr.usgs.gov/ 

Suggested citation:

Biewick, L.H.R., and Jones, N.R., 2012, Energy map of southwestern 

Wyoming, Part A—Coal and wind: U.S. Geological Survey Data Series 683, 

18 p. pamphlet, 5 pls. 

1U.S. Geological Survey

2Wyoming State Geological Survey