GEOLOGICAL SURVEY CIRCULAR 81 

September 1950 

COAL RESOURCES OF WYOMING 

By 

Henry L. Berryhill, Jr., Donald M. Brown, 

Andrew Brown, and Dorothy A. Taylor 

Prepared as Part of a Program 

of the Department of the Interior 

for Development of the Missouri River Basin 
UNITED STATES DEPARTMENT OF THE INTERIOR 

Oscar L. Chapman, Secretary 

GEOLOGICAL SURVEY 

W. E. Wrather, Director 

WASHINGTON, D. C. 

Free on application to the Geological Survey, Washington 25, D. C. 
PREFACE 

This report on the coal resources of Wyoming is the fourth of a series of State summary reports prepared by the Geological Survey as part of a program of reappraising the coal reserves of the United 

States. Summary studies of the coal reserves in other States are 

contained in the preliminary map entitled "Geoloqy of the Deep River 

coal field, Chatham, Lee, and Moore Counties, N.C." (1949) and in 

Circular 53, Coal resources of Montana (1949), and Circular 77, 

Coal resources of Michigan (1950). A report on the coal resources 

of New Mexico is planned for the near future. 

i 

W. E. Wrather, 

Director. 

COAL RESOURCES OF WYOMING 

By 

&.17 L. BerryiW1, Jr., Dould II. BrowD, 

ADdnw Bmm,.aad Dorothy A. Taylor 

CONTENTS 

Paqe 

Introduction ••••..•...•••••.•.••.•..••• · • • • . • • •. 1 

Wyominq coal reserves • • • • • . • . . . . • . • • . • • • . • • • • . 1 

Classes ·of reserves . • • . . • . • • • . • • • • • • • • • .. . • 3 

Classification accordinq to 

characteristics of coal • • • • . • • • . . • . • • • 3 

Rank of coal . . . • . • • • • . • • • • • • . • • • . . 3 

Thickness of beds . • • • • . • • • • • • • . • . . 3 

Thickness of overburden. . . . . • . . • . • 3 

Classification accordinq to 

reliability of data • • • • • • • • • • • • • • • • • • • • 3 

Measured reserves . • . • . • • • . • •. . • • • 3 

Indicated reserves • • • • • . • • . . • • • • • • 3 

Inferred reserves • . • . . • • . • • . . • • • . 5 

Distinction between oriqinal, 

remaining-, and recoverable 

reserves . . . • • • . • . • . . . • • • • • • • • • • • • • • 5 

Methods of estimatinq reserves • • • • • • • . • • . . 5 

Areas considered and omitted in preparinq 

reserve estimates • • . • • • • . • . • • • • • • • • • • • • • 5 

Wyominq coal fields • • . • . • • • • • . . • • • • • . • • . • . • • • 10 

Black Hills reqion ••..••..•••.••.•••••••• 10 

General features • • • • • • • • • • • • • • • • • . • • .. • 10 

Description of fields • . • . . . • . . . • • • • . • • • 10 

Cambria field ••. · ••.••••..•••..••••• 10 

Other fields .•••••.••••.••••••.•••• 10 

Reserves and production •••••...••.••.. 11 

Powder River Basin ..•••......•.•.••.•••• 11 

General features •••..•••.. ~ ••••••.•••• 11 

Description of fields • • • • . . . • • • • • • • . • . . 11 

Sheridan field • • • . • . • . . • . . • • • • • • • • 11 

Powder River field ••..•••.•••.••.• 12 

Spotted Horse field ...••.•.••••.•.• l3 

Little Powder River field •••••..••. 13 

Gillette field •.•••••••.••...••••.. 14 

Pumpkin Buttes field • • • . • • • • • • • . • • 14 

Dry Cheyenne field •••••.•..•..••. 14 

Lost Sprinq field •..•••••••.•...••• 15 

Glenrock field •.•.••.•..••••••••.• 15 

Sussex field • . . • • • • • • • • • . • • • • • • • • • 15 

Buffalo field . . • . • . . • . • • • • • • • • • • . . . 16 

Barber field . • . • • . • . • . • • • • • • • • • . • • 16 

Central part of the Powder 

River Basin. • • • • • • • • • • • • • • • • • • • • 16 

Reserves and production. • • • • • . • • • • • • • • 16 

Goshen Hole field ••••••••••.••••••• ~ • • • •. •. • 17 

Biqhorn Basin • . . . . • . . . . • • • .. • • • • • • • • • • • . • • 17 

General features . • . . • . • • • • • • • • . • • • . • • • 17 

Description of fields • • . • • • • • • .• • • • • • • • • 17 

Silvertip field • • . • • • • • • • . • • • • • • • • • 17 

Garland field •.•••••••••••••••••••. 17 

Basin field • • • . • • • • • • • • • • • • • • • • • • • 18 

Southeastern field ••••••• ~. • • • • • • • • • 18 

Gebo field . • • • • • • • • • • • • • • • • • • • • • • 18 

iii 

Paqe 

Description of fields--Continued. 

Grass Creek field • • • • • • • . • • • • • • • • 18 

Meeteetse field • • • • • • • • • • • • . • • • • • 18 

Oreqon Basin field • • . • . • • • • • • • • • • 19 

Reserves and production • • • • • • • • • • • • • . 19 

Wind River Basin •• ~ • • • • • • • • •• , • • • • • • • • • • 19 

General features • . • . • • • • • • . • • • • • • • • . • 19 

Description. of fields • • • • . . • • • • . • •·• • . • 20 

Muddy Creek.field •••••••.•••..•. 20 

Pilot Butte field • • • • . • • • • • • • • • • • . 20 

Hudson field . • . • • • • . • • . • • • • . • • • • • 20 

Alkali Butte field . • . . • • . • • • • • • • • . • 20 

Coal in Tps. 33 and 34 N., 

R. 96 W ..... ~ .•• · ••••••••••••••• 21 

Powder River field • .. . • • .. . . • • • • 21 

Reserves and production • . • • • . . • • . • • . . 21 

Hanna field ..•...•..•.••..•.••.••••.••••. 21 

General features • . • • • . • • • . • • • • • • • • . • • 21 

Coal~bearinq formations •••••••••••••• 22 

Coal in the Mesaverde 

formation . . . . . • • • . • • . • . . • • . • • . • 22 

Coal in the Medicine Bow 

formation • . . • • • • • • • • • • • • • • • • • • . 22 

Coal in the Ferr.is formation ••••••• 22 

Coal in the Hanna formation .•..•.• 22 

Reserves and production . • . • • • • • • • • • . • 22 

Rock Creek field .....••.•••..•.•••••••••• 23 

Green River reqion . . • . . . . . • • . • • • • . . • • • . • 23 

General features . • . • • . • • • • • • • . • • . • • • • 23 

Description of fields ••••.••••••• · ..•.•. 23 

Kindt Basin field.. .. .. • .. . • .. .. • • 23 

Great Divide Basin field • . • . • • • . • • 24 

Little Snake River field • • . • • • . . • . . 24 

Rock Sprinqs field • • • . • • • . . • • •• • • 25 

Wf3stern part of the Green . 

River reqion •••.•••.••••••••••.. 26 

Reserves and production .••.••••••••. ·• 26 

Hams Fork reqion . • . • • . • . • • • •.••••.• ~ • • • 27 

General features .•••..•••••••••••••.• 27 

Description of fields • • • • • • • • • • • • • • . • • 27 

.Kemmerer field • • • • • • • • • • . . • • . . . 27 

Greys River field • • • • • • • • • . . • . • • • 28 

McDouqal field • • • • • • • • • • • • • • • • • • 28 

Evanston· field . • • • • • • • • • • • • • • • • • • 28 

Reserves and production • • • • • • • • • • • • • • 28 

Jackson Hole- field • • • . • . • . • • • • • • • • • • • • • • • 29 

Yellowstone National Park •••••••.•••••.•• 29 

Cokinq coal in Wyominq ••••••••••••••••. · •••.. 29 

Cambria field • • • . • • • • • • • • • • • • • • • • •. .• • . • • • 29 

Rock Sprinqs field . • • • • • • • •. • • • • • • • • • • • • . • 29 

Kemmerer field • • • . • • • • • • • • • • • • • • • • • • • • • 30 

selected biblioqraphy . • • • • • • • • • • • • • • • • • • • • • • • • 75 

Index to biblioqraphy ••••.•••••••••••••••••••• 77 
Figure ·1. 

2. 

3. 

4. 

ILLUSTRATIONS 

Paqe 

Annual coal production in Wyoming, 1865-1949................................................ 1 

Map of Wyoming showing coal-bearing areas. . • . • . • . . • . . • . • . . . • • • . • . • . . . . . • . . . . . . . • . . . . . . . . . . • 6 

Map of Wyoming showing location of coal fields •.•.•.•••.••..•.••••••.•.••......•..•.. ·. . . . . . . . . 7 

Generalized stratigraphic sections in main coal-bearing regions of Wyoming..................... 8 

TABLES 

Paqe 

Table 1. Coal production in Wyoming during the years 1938-49. . . . . . . • . . • . . .. . . . . . • . . . . . . . . . .. • • . .. . .. . . . 2 

2. Townships in coal-bearing regions for which reserve estimates are omitted. • • . • • • . . . • • • • • • • . • • • . • 31 

3. Areas included in and omitted from reserve estimates • . • . • • . . • • • . • . • . . . • . • • . • • • • . • . • • . • • • • . . . . • 33 

4. Measured original reserves of bituminous coal in Wyoming •.•.••••..•••..•••••••..•...••.•. ; • • . • 34 

5. Indicated original reserves of bituminous coai in Wyoming • . . • . • • • . • . . . • . • • • • • • • • • • . • . • • • • . • • • • • 35 

6. Inferred oriq.inal reserves of bituminous coal in Wyoming . . • . . • . . . • • . • • • . • . • • . . • • . . • • • • • • . . • . • . • 37 

7. Measured original reserves of sub-bituminous coal in Wyoming •.••••..•••••••••.•.••••••.• ~ ••.•. 39 

8. Indicated original reserves of sub-bituminous coal in Wyoming ...••••.••...•••••.•..•.•...••.•..• 40 

9. Inferred original reserves of su.b-bituminous coal in Wyoming ..•.••••.••.••.•.•.•....•.•.•.•.••• 49 

10. Original reserves, in all categories, of bituminous coal in Wyoming •••...•••.•...•..•••.•...••.•• 57 

11. Original reserves, in all categories, of sub-bituminoUs coal in Wyoming •.•.•.•.•••..•••.•.•.•..•• 60 

12. Estimated original coal reserves of Wyoming, by counties . . . • . . • . . . . . . • . . . . . • • . • . . . . . .. . • . • . . . • • 72 

13. Estimated original coal reserves of Wyoming, by regions and fields . . . • . • . . . . • • • • . . . . . . • • . . . • . • . • 73 

14. Selected list of coal mines in Wyoming ..•.••..•••••••••.•..••••..•...•..•.•••••..•.•.....••.•• 74 

iv 
COAL RESOURCES OF WYOMING 

INTRODUCTION 

The accompanying report on the coal resources of 

Wyoming has been prepared as part of the Interior Department's program for the integrated development of 

the Missouri River Basin. It is based on studies of 

published and unpublish~d reports and files of the 

United States Geological Survey, publications of the 

Geological Survey of'Wyoming, and records of mining 

companies, oil companies, and individuals who have 

made their files available to the Survey. The coal 

estimates included in the report, although the most 

comprehensive that can be prepared with the data 

available, still must be considered provisional in that 

information on the amount and grade of coal present in 

many parts of the State is meager or lacking. Much 

additional detailed mapping and exploration will be 

necessary before it can be said that Wyoming'$ coal 

resources have been adequately appraised. 

The authors wish tp express their appreciation 

for the cooperation and courtesies extended by numerous individuals in Wyoming who contributed invaluable 

information embodied in this report. For maps, well 

records, mine maps, and other items of information, 

they are greatly indebted to officials and representatives of the Union Pacific Coal Co. , the SheridanWyoming Coal Co. , the Big Horn Coal Co. , the Wyodak 

Coal Co., the Kemmerer Coal Co., and the Colony 

Coal Co.; to Edward Summerford, of Casper, Wyo.; 

to J. R. Lerwill, B. W. Dyer, H. B. Lindeman, and 

J. J. Bourquin, of the Conservation Division of the 

U. S. Geological Survey; toR. T. Littleton, of the 

Water Resources Division of the Geological Survey; 

and to various private mine owners and individuals 

throughout Wyoming. 

WYOMING COAL RESERVES 

Although little or no information is available about 

the coal in many parts of Wyoming, the original coal 

reserves in the parts of the State for which information 

is available are estimated to be 121,553,850,000 short 

tons, of which 13,234,950,000 tons is bituminous coal 

and 108,318,900,000 tons is sub-bituminous coal. Detailed estimates of reserves, in categories based on 

rank, thickness of coal, depth of overburden, and other 

pertinent factors, are given by townships, counties, 

and coal fields in subsequent pages of this report. 

The total reported production of coal in Wyoming 

from 1865 through 1949 has been 362, 375, 000 tons, 

and actual production probably has been c.onsiderably 

more. (See fig. 1 and table 1.) Of this total nearly half 

~ 8~-------4--------~--------+-------~~------~----~ 

s:: 

0 

+> 

+> 

S.. 

0 

.s:: 

m 6~-------4--------~--------+---------~--~~ '-t 

0 

m 

s:: 

0 

'" ...... 

~ 4r-------~---------r--------+--------- ::E: 

1860 1870 1880 1.890 1900 1910 1920 1930 1940 

Figure 1.--~nnual coal production in Wyoming, 1865-1949· (Data from u.s. Geological Survey, Mineral Resources of the United States 1 annual volumes,.lS82-1923; U.s. 

Bureau of Mines, Minerals Yearbooks, 1924-1948.} 

1 

1950 
Table 1.--Coal production in Wyoming during the years 1938-49• in short tons. 

(Figures from Annual Reports of the Wyoming ~tate Inspector of Coal Mines. 1938-49. inclusive) 

County 1938 1939 1940 1941 1942 1943 1944 1945 1946 1947 1948 1949 

Bighorn •••• 730 1.029 856 1.002 962 573 . . . . . . . . . . ... . ... .... . ... C811lpbe 11 ••• 106.342 108.794 119.663 122,775 121,635 167,066 223.356 101.209 174.337 209,272 263.266 314,200 

carbon ••••• 591,216 584,956 615.901 756,753 892,377 1,216,732 1.?08,880 1.485,512 1,079,409 1,237,133 921,199 896,325 

ConverSe ••• 8,038 19,441 21,536 15,789 18,556 17,249 15,407 13,768 13,932 12,448 11.153 9,750 

Crook •••••• . . . . 1,190 852 377 . ... . ... . . . . . ... . ... . . . . . ... . ... Fremont •••• 44,325 38,647 42,529 35,526 20,597 10,188 10,054 8,726 7,194 8,725 9,140 8,665 

Bot Springs 61,891 61,600 . 72,1.79 88,304 135,405 174,097 154,827 160,630 72,480 69,502 50,794 48,430 

l'O Johnson •••• 9,605 10,505 13,343 12,568 12,969 8,644 9,592 7,546 6,223 5,000 ...... 3,280 

Lincoln •••• 428,282 449,002 455,266 487,597 581,365 617,506 545,207 509,652 390,934 420,636 408,290 284,160 

Batrona •••• 3,195 3,481 3,023 3,006 f,541 1,480 1,071 885 .... . . . . . ... . ... Park ••••••• 1,585 2,763 2,963 2,603 1,549 327 566 . . . . .... . ... . ... . ... Sheridan ••• 629,792 584,182 606,582 602,668 786,250 962,681 1,140,657 1,290,671 1,330,877 1,181,252 1,048,713 1,147,920 

Sublette ••• 311 1,253 685 594 401 439 511 .... . ... 800 668 1,000 

Sweetwater. 3,315,682 3,527,411 3,859,426 4,524,598 5,565,415 6,047,051 6,136,981 6,251,667 4,538,617 4,907,680 3,691,813 3,256,630 

Teton •••••• 1,082 1,539 1,032 1,306 793 330 1,799 1,113 .... . ... 222 150 

Uinta •••••• 17,649 15,134 14,859 15,935 15,041 13,360 10,686 5,414 2,675 2,299 3~041 2,130 

"teston ••••• 248 84 . ... . . . . . ... I . ... . ... . ... . ... . ... . ... . ... 

Total •••••• 5,219,973 5,411,011 5,850,695 6,671,401 8,154,856 9,237,723 9,459,p88 9,836,793 7,616,678 8,054,747 6,408,299 5,972,640 
has been mined in the Rock Springs field and nine-tenths 

has been taken from the six largest producing districts. 

In 1949,1/ a total of 56 mines were operated in 11 counties ancf3,814 men were employed in coal-mining operations. Of the 5,972,640 tons produced in that year 

1,061,067 tons, or 17. 7 percent, was recovered by 

stripping operations and 4,911,573 tons, or 82. 3 percent, by underground mining. Most of the mines are 

mechanized, as is illustrated by the fact that 98.88 

percent of the tonnage produced in 1949 was mined by 

mechanical means. 

That Wyoming coal is marketed over a wide area 

is shown by a distribution analysis compiled for 1946, 

the latest year for which such figures are available. 2/ 

In that year, of a total reported production of about -

7. 5 million tons, more than 5 million tons, or 69 percent, was used as railroad fuel in Wyoming and nearby 

States, and industrial and retail uses in Wyoming ac- counted for an additional 4 percent. The remainder, 

about 27 percent, was shipped to other States for industrial use and retail sale. By far the largest out-ofstate shipments, about 9 percent of the total production, 

went to the State of Washington. Nebraska, South Dakota, 

Montana, Idaho, and Colorado each received more than 

100,000 tons of Wyoming coal, and eight other States 

received smaller amounts. In the same year only about 

30,000 tons of coal, mostly from Colorado, was shipped 

into the State. 

In later sections of this report estimates are given of total production from a number of the more important fields. These figures are only appro2dmate because of difficulties inherent in breaking down reported 

totals by counties into totals by fields. They are sufficiently accurate, however, to be useful in evaluating 

the production capacity of the various fields and are 

introduced for that purpose only. 

Classes of reserves 

Classification according to characteristics of coal 

The estimates of reserves presented in the report are subdivided according to rank of coal, thickness of 

beds, and thickness of overburden. 

Rank of coal. --The ra.Iik of coal is determined according to the standard specifications of the American 

Society for Testing Materials, ·which are reproduced 

on page 4 of this report. Most of the Wyoming coals 

are of bituminous and sub-bituminous rank. A small 

area in the northeastern part of the Powder River Basin 

is believed to contain lignite that is very near in rank 

to sub-bituminous C coal. Larger areas of coal on the 

east side of the Powder River Basin contain coal that 

appears to be gradational between lignite and subbituminous coal. For the purpose of this appraisal, 

however, all the coal in the Powder River Basin is 

classified under the heading "Sub-bituminous coal. 11 

Thickness of beds. --The minimum thickness of 

coal mciuded mthe estimates of reserves is 14 inches 

for bituminous coal and 2. 5 feet for sub-bituminous 

1

M:Cleod, Hugh, Annual Report of the State Inspector of Coal Mines of 

Wyominq, year ending Dec. 31, 1949 (1950). 

2 Scalf, F. C., Bituminous coal distribution, calendar year 1946: U. S. 

Bur. Mines Min. Market Rept., Mine Market Survey 1592, 1948. 

3 

• 

coal and lignite. Coal thicker than the minimum for 

each rank is divided into three thickness groups. For 

bituminous coal the ranges are 14 to 28 inches, 28 to 

42 inches, and more than 42 inches. For sub-bituminoUS" coal and lignite the thickness ranges are 2. 5 to 5 

feet, 5 to 10 feet, and more than 10 feet. These ranges 

accord essentially with those recommended by the 

National Bituminous Coal Advisory Council. 

Thickness of overburden. --The estimated reserves 

are sUbdiVIded Iiito three depth ranges: less than 1,000 

feet, 1,000 to 2,000 feet, and 2,000 to 3,000 feet .. No 

coal under more than 3,000 feet of cover is included in 

the estimates. 

Classification according to reliability of data 

The estimates of reserves included in this report 

are further divided into three categories, termed 

"Measured," "Indicated," and "Inferred," according to 

the reliability of the data upon which the estimates are 

based. The definitions of these categories were formulated jointly by members of the U. S. Geological Survey 

and the Bureau of Mines. They may be summarized as 

follows: 

Measured reserves. --Measured reserves include 

beds for which pos1t1ve information as to thickness and 

extent is available from surveys of the outcrop and from 

mine workings and drill records. The points of observation and measurement are judged to be so closely 

spaced that the computed tonnage can be considered to 

be within 20 percent of the true tonnage. Although the 

distances between measured sections will vary considerably in different beds and under different conditions 

in the same bed, the points of observation are, in general, about half a mile apart. The outer limit of a 

block of measured reserves, therefore, is usually about 

a quarter of a mile from the last point of definite information or approximately half the distance between 

points of observation. Where no data other than measurements along the outcrop are available, but where·the 

continuity of the outcrop is measured in miles and con- ditions suggest that the coal is present at a considerable 

distance from the outcrop, a smooth line drawn. approximately half a mile from the outcrop is taken as the 

limit of measured reserves. 

Indicated reserves. --Indicated reserves are computed partly from specific measurements and partly 

from the projection of visible data for considerable 

distances on geologic evidence. In general, the points 

of observation are approximately 1 mile apart, or as 

much as 1t miles for beds of known continuity. For 

example, if drilling on half-mile centers has proved a 

block of coal of fairly uniform thickness and extent, the 

area of measured coal is considered to extend for a quarter of a mile on all sides of the area actually 

drilled. If from geologic evidence the bed is believed 

to have greater continuity, this area of measured re- serves is surrounded by a belt of indicated reserves 

that, according to the judgment of the appraiser, may 

be as much as 1! miles wide. Where only outcrop 

measurements are available, but where the bed is con- tinuous over long distances and conditions suggest that 

the coal is present at comparable distances back of the 

outcrop, the area of indicated reserves is bounded by 

a line drawn 2 miles behind the outcrop and the halfmile line drawn to limit measured reserves. 
CLASSIFICATION OF COALS BY RANK.C1 

Legend: F.C.- Fixed.Carbon. V.M. -Volatile Matter. Btu. - British thermal units. 

Limits of Fixed Carbon or Requisite Physical Class Group Btu. Mineral-Matter-Free 

Basis Properties 

1. ¥eta-anthracite .................. D(I F .C .• 98 per cent or more D~ V.M., 2 per cent or less . ! 

2. ·Anthracite ...................•.. Dry F .C., 92 per cent or more 

I. Anthracitic 

and less than 98 per cent 

{Dry V .M., 8 per cent or less 

and more than 2 per cent) 

3. Semianthracite .................. Dry F .C., 86 per cent or more N onagglomeratingb and less than 92 per cent 

{Dry V .M., 14 per cent or less and more than 8 per cent) 

1. Low volatile bituminous coal.. .. Dry F .C., 78 per cent or more and less than 86 per cent 

{Dry V.M., 22 per cent or less and more than 14 per cent) 

2. Medium volatile bituminous coal. Dry F .c., 6~r cent or more and less . an 78 per cent 

{Dry V.M., 31 per cent or less and more than 22 per 

II. Bituminouscl cent) 

3. High vola.~ile A bituminous coal. Drft·C., less than 69 per cent 

{ ry V.M.,more than31 per cent); and moistc Btu., 

14,000' or more 

4. ffigh volatile B bituminous coal.· Moist0 Btu., 13,000 or inore 

and less than 14~000' 

5. High volatile C bituminous coal. Moist Btu., 11,000 or more and less than 13,oooe Either agglomerating or nonweath~ring/ 

1. Subbituminous A coal. .......... Moist Btu., 11,000 or more Both weathe~ing and 

and less than 13,000' non agglomerating 

III. Subbituminous 2. Suhbituminous B coal. .......... Moist Btu., 9500 or more and 

less tban 11,oooe 

3 •. Subbituminous C coal.,. ....•.... Moist Btu., 8300 or more and 

less than 9500' \ 

IV. Lignitic 1. Lignite ......................... Moist Btu., less than 8300 Consolidated 

2. Brown coal ... _ .................. ·Moist Btu., less than 8300 Unconsolidated 

• 11 :t'Jlis cl~~fica.tion does not include a few coa!s which~ave~us~al physical an~ ~e!Dical properties and which come w1thm the hmtts of fixed carbon or Btu. of the h1gh-vola.t11e bJtummous and subb1tummous ranks. All of these coals 

either contain less than 48 per cent dry, mineral-matter-free fixed carbon or have more than 15,500 moist, mineral-matter- heeD~ · . •u agglometating, classify in low-volatile group of the bituminous class. c Moist Btu. refer~ to coal containing its natural bed moisture but not including visible water on the surface of the 

coal. 

fl It is recognized that there.may be noncaking varieties in each group of the bituminous class. • Coals having 69 per cent or more fixed carbon on the dry, mineral-matter-free basis shall be classified according to 

fixed carbon, r~gardless of Btu. · 1 There are three varieties of coal in the high~volatile C bituminous coal group, namely, Variety 1, agglomerating and nonweathering; Variety 2, agglomerating and weathering; Variety 3, nonagglomerating and 11onweathering. 

' 
Inferred reserves.--Inferred reserves are those 

for which estimates are based larqely on broad knowledge of the geological characteristics of the bed or reqion, supported by few or no actual exposures or measurements. In general, inferred reserves lie outside the limits defined above for measured and indicated 

reserves,. but only in areas where there is good evidence for believing that coal, in the thickness and of 

the rank given, is actually present. 

Distinction between oriqinal, 

remaining, and recoverable reserves 

The estimates qiven in this report are of oriqinal 

coal reserves in the ground before mining. They inClude the narrow weathered zone at the outcrops and 

coal under railways, roads, and the like, but exclude 

all known areas of burned coal. Calculation on the basis 

of original reserves, rather than of reserves remaining as of a certain date, is the only practieabie procedure in Wyoming, where many coal-bearing areas have 

not been surveyed and where total production is relatively insignificant compared to total reserves. As new mapping and exploration is carried on, estimates of 

original reserves are certain to be increased over the 

conservative totals presented in this report. Meanwhile, a small amount of coal will be mined and lost in 

mining each year. Estimates of rem&.ininq and recov- erable reserves as of any qiven time can be ascertained more readily, therefore, if the records of origin.S.l re- serves and of the amount of coal mined and lost in mining are kept separately. 

As previously mentioned, the total amount of coal 

mined in Wyoming to January 1, 1950, is about 

400,000,000 tons. In addition to the coal actually mined, a large amount is lost. Recent appraisals by many investigators in different parts of the United States have 

shown conclusively that losses in mininq ranqe from 35 

to nearly 60 percent of the coal originally in the qround. 

In Wyoming, where comparatively large pillars are the 

rule and where, in some mines, a considerable .thick- ness of emil is left in the roof, it is likely that losses in 

mining are at least 50 percent of the coal in the qround, 

and this assumption is followed here. On this basis, 

400,000,000 tons of coal has been:mined in Wyoming' to 

January 1, 1950, and an equal amount has been lost in 

mining. The total of 800,000,000 tons, when subtracted 

from the total~ reserves of 121,553,8501000 tons, 

leaves rem~rves on January 1, 1950, of 

120, 753,850,ooo ons. As the total production and mining losses to January 1, 1950, are only 0. 7 percent of 

the estimated oriqinal reserves, it is obvious that the 

effect of mining on the total reserves of the State has 

been very small and that present and future investigations of the coal deposits will affect the reserve fiqure 

far more than mining on the present scale. 

Assuming that mining losses in the future will re- main about equal to actual production, the recoverable reserves of Wyoming' are estimated as half the remaining reserves, or 6Q,376,925,000 tons of coal that, on the basis of rank, thickness, depth, and continuity, is 

considered ultimately minable under the ~efinitions and as~umptions used in compiling this report. It is recoqnized that much coal meeting these requirements· is not 

economically recoverable at the present time, but the 

consideration of mining costs, transpor~ation problems, 

and the like is beyond the province of a summary appraisal of reserves. 

5 

Methods of estimating reserves 

With few exceptions, the reserve estimates in this 

report were computed for individual coal beds and for 

individual townships. The first step in the work was 

the preparation of work maps, usually on the scale of 

1 inch or half an inch to the mile, on which all mapped 

coal outcrops, drill holes, mines, location and thick- ness of measured sections, and other data were plotted. 

In areas where several coal beds crop out, separate 

maps were made for each bed. 

After this basic information was assembled, lines were drawn on the in.aps bounding the areas in which 

sufficient evidence for calculating reserves in each 

cateqory and depth and thickness range was available. 

A continuous bed extending around a spur or basin was considered to underlie the area enclosed by the line of 

outcrop. For all other beds the lenqth of outcrop, within each thickness range, was considered to establish 

the presence of coal in a semicircular area -extending 

from the outcrop and having a radius equal to half the 

length of the outcrop. Where the information was obtained from an isolated mine working, the coal was con- sidered to extend beyond the working in an arc with a maximum radius of half a mile. Where the information was from an isolated drill hole too far removed from 

other holes or outcrops to be incorporated with other 

established coal areas, the bed was considered to ex- tend in a circle with a maximum radius of half a mile 

beyond the hole. 

After the total area of coal occurrence had been 

determined as described, it was divided on the work 

maps into subordinate areas of measured, indicated, 

and inferred reserves in accordance with the definitions 

outlined in pr~edinq paragraphs. The area under lain 

by coal in each cateqory, rank, and depth and thickness 

range was then measured with a planimeter. 

The weight of the coal was taken as 1, 770 tons per 

acre-foot for sub-bituminous coal and 1,800 tons for 

bituminous coal. The average thickness used in calculations was a weighted average of all thickness figures 

within the measured areas, which fiqures represented 

the total thickness of the bed minus the total thickness 

of partings more than three-eighths inch thick. All 

coal beds dippinq less than 18° were considered to be 

horizontal for purposes of making reserve calculations, as the correction for dip, less ti).an 5 percent, was less than the normal variation in the thickness of the 

bed. Similarly, where the dip of the coal beds was steeper _than 78°, they were assumed to be vertical 

and to extend to a depth of 3, 000 feet. A correction 

for dip was employed in estimating reserves in all coal 

beds dipping between 18° and 78°. 

~ considered JDSl omitted 

.!!:! preparing reserve estimates 

Wyoming contains large areas that in all probability 

contain minable. coal at depths of less than 3,000 feet 

but for which little or no information is available. Although it would have been possible to make rouqh calculations, on a reqional basis, of the coal in such areas, 

it was decided to omit .them from the accompanying 

estimates, which are thus confined to areas where 

definite information about the extent and thickness of 

the coal beds was available. 
YELLOWSTONE 

L_' 

I ~~ z -

II 

I 

I 

I ft ~ I 

I K ll ~ 

1

'/.1 

~ I 

NATIONAL 

---, 

~ \, 

"e.~ \._7 

~..... ""'"' '(t. <... 

L, I 

I, 

t-~.":":;;o---,--- ----1 CROOK 

I 

I 

BLACK· \ 

I 

I 

··HILLS ' 

-----· _j 

• I 

REGION\ "I I 

WESTON ' I 

~~------' 

' 

I 

I 

NIOBRARA ' I CONVERSE J __ L----~ I I GOSHEN ' 

------,---- 1 I I 

1 I I I 

I ALBANY I ·PLATTE 1 GOSHEN \ 

I I HOLE 

I I~ L__ _____ j ~ \ I L---1 I 

~, nvFIELD·--·· I LARAMIE I 

_____ L ___ ~ ___ L __ ____ l 

Figure 2~Map of Wyoming showing cool-bearing areas 

9 §5 5? ~5 tqo Miles 

EXPLANATION 

BITUMINOUS COAL AREA 

Containing 

-

cool beds more 

than 14 inches thick 

Containing cool beds less 

than 14 inches thick or 

of unknown thickness 

SUB- BITUMINOUS COAL AREA 

r. 

Containing coal beds more 

than 30 inches thick 

Containing 

~ coal beds less 

than 30 inches thick or 

of unknown thickness 

LIGNITE AREA 

r ................ · · · · · · · · · · · · .; ·1 ................ 

················ 

················ 

················ 

Containing lignHe beds 

less than 30 inches thick 

PROBABLE COAL- BEARING AREA 

Containing 

-

coal•bearlng 

formations at unknown 

depths 
--------"1 

CROOK \ 

22 0 

--------------------

Figure 3;-Mop of Wyoming showing ·location of coal fields 

0 zs 50 15 100 Mile$ 

I ( I I 

EXPLANATION 

No. on Coal Field 

map 

1. 

2. 

3. 

4. 

5. 

6. 

7. 

8. 

9. 

10. 

11. 

12. 

13. 

14. 

15. 

16. 

17. 

18. 

19. 

20. 

21. 

22. 

23. 

24. 

25. 

26. 

27. 

28. 

29. 

30. 

31. 

32. 

33. 

34. 

35. 

36. 

37. 

38. 

39. 

40. 

41. 

42. 

Jackson Hole 

Grass Creelc 

Meeteetse 

Oregon Basin 

Silvertip 

Garland 

Basin 

Southeastern 

Gebo 

Sheridan 

Spotted Horse 

Littl• Powder River 

Powder River 

Barber 

Buffalo 

Sussex 

Pumpkin Buttes 

Gillette 

Dry Cheyenne 

Glenrock 

Lost Spring 

Aladdin 

Sundance 

Skull Creek 

Cambria 

Goshen Aole 

Rock Creek 

Hanna 

Kindt Basin 

Great Divide Basin 

Little Snake River 

Rock Springs 

Labarge Ridge 

Evanston 

Kenunerer 

Greys River 

McDougal 

Muddy Creek 

Pi-lot Butte Hudson 

Alkali Butte 

Powder River 
r--

" c 

Q) 

CJ 

s 

II 

..: 

Gl 

CJ 

0 

Gl 

r-i 

<11 

ll. 

IQ 

::s 

0 

G) 

CJ 

.. 

+> 

G) 

"' t.) 

"' Ql 

g, 

g, 

:::> 

• ::s 

0 

G) 

CJ 

... 

+> 

G) 

"' t.) 

"' Ql 

)1: 

.s 

'-'---

Powder River Basin 

and 

Black Hills region lJ 

*Wasatch 

formation 

.1,050 - 3,300 '!: 

l:g *Tongue River member CN 

0 • .... t'"\ Lebo shale· C I member :::>0 

f~ Tullock '0.-i member 1'&. 

Lanoe '~ell ere ... ~ormation formation 

400 - 2,000 

Fox Hills 

sandstone 

75 - 420 

s:l. 

::s 

0 

Ill! "' 

.. Pierre c 

.. shale +> c 

:i 1,750- 3,030 

Niobrara 

formation 

100 - 525 

Carlile shale 

225 - 540 

g, 

::s Greenhorn 

e limestone bO 30 - 350 0 

'0 

.. Belle Fourche 

"" 0 shale r-i 

0 350 - 1,000 t.) 

Mowry shale 

125 - 325 

Newcastle 

sandstone 

0- 100 

Skull Creek 

shale 

160 - 275 

Fall. River g, sandstone 

6 35 - 50 

"' Ill! 

f Fuson shale ... I ~ 10 - 100 c 

:. 

c 

1-1 •Lakota 

sandstone 

150 - 300 

Bighorn Basin Y, 

*Wasatch 

fonnation 

1,300 - 1, 700 t 

*Fort Union 

formation 

0 - 5,600 

Lance formation 

275 - 1,800 

*Meeteetse 

formation 

250 - 1,400 

*Mesaverde 

formation 

685 - 1,410 

Cody stale 

1,900 - 3,460 

Frontier 

formation 

480 - 648 

Mowry shale 

160 - 375 

Thermopolis shale 

400- 800 ~ 

Cloverly 

formation 

.110 .. )00 

Wind River 

Basin J} 

Wind River 

formation and 

youneer Eocene 

!rOcks undivided 

0 - 2,900 

*Fort Union 

ronoation 

350 - 4,165 

j Lanoe f;n. ~~'Lewis -&··· Lance fm. 

fms. 

undivided 

350 - 3,715 

*Mesaverde 

formation 

800 - 1,960 

>~~Cody shale 

3,050 - 4,480 t 

Frontier 

formation 

550 - 1,000 

Mowry shale 

250 - 600' 

Thermopolis 

shale 

250 - 710 

Morrison and 

Cloverly 

formations 

undivided 

258 -·no 

Hanna field II} 

· i*Hanna formation 

7,000 '!: 

i*Ferris formation 

6,500 '!: 

*Medicine Bow 

formation 

4,000 - 6,200 t 

Lewis sbale 

3,300 't 

*Mesaverde 

formation 

2,200 - 2,700 

Steele shale 

4,000t - S,OOOt 

Niobrara 

formation 

700 t 

Carlile shale 

460 t 

Frontier 

formation 

725 't 

Mowry sbale 

120 

Thennopolis shale 

~ 180 ~ 

Cloverly 

formation 

128 

Rock Spr!n.ss field lf 

*Wasatch 

'formation 

1,000- 2,500 

•Fort Union 

formation 

6,000 - 9,400 

*Lance 

foi'IIB ti on 1,500 

Lewis shale 

750 

*Almond 

formation 

700 - 950 

g, 

::s Ericaon 0 sandstone "' Ill! 800 - 1,000 i ' : ~Rock Sprinca 

111 Jsnnatio8o : - 1,4 X 

Blair 

fol'!llation 

1,000-1,200 

Baxter shale 

1,000 + 

Unexpoe ed shale 

1,800 t 

Frontier 

tormatiQn 

'soo 

Aep• ahale 

200 

Hams Fork 

rey,ion §.1 

\'lasatch 

formation 

2,600 - 6,200 

*Evanston 

formation 

0- 1,600+ 

*Adaville 

formation 

2,800 - 4;000 + 

Hilliard shale 

3,000 - 6,800 

*Frontier 

formation 

2,200 - 3,800 

Aspen shale 

1,200 - 2,000 

*Bear River 

.formation 

500- 5,000t 

Figure 4.--Generalized stratigraphic sections in.main coal-bearing regions of Wyoming, showing range of thickness 

of each formation in feet. The sections are independent, the only correlations intended being the lines 

representing major age divisions. Asterisk (*) indicates formations in which minable coal is exposed. 
REf'EREBCES CITED IN ST~ATIGRAPHIC SECTIONS ON OPPOSITE PAGE 

Dobbin, C. E., and Horn, G. H., Geology of the Kush Creek and Osage oil 

fields and vicinity, Weston County, Wyo.: U. s. Geol. Survey Oil and 

Gas Inv. Preliminary Map 103, Aug. 9, 1949. 

Rubey, W. W., L1tholog1 c studies of fine-grained Upper Cretaceous 

sedimentary rocks of ·the Black Hills region: U. S. Geol. Survey Prof. 

Paper 165, pp. 3-5, 1930. 

Thom, w. T., Jr., and Dobbin, c. E., Stratigraphy of Cretaceous-E~cene 

transition beds in eastern Montana and the Dakotas: Gaol. Soc. ~rica Bull., vol. 35, no. 3, pp. 488-489, 1924. · 

Stone, R. w., Coal in the Black Hills, Wyo.-S.Dak.: u.s. Geol. 

Surve.y Bull. 499, pp. 10-15, 1912. 

Y Rogers,. C. P., Richards, P. w., Conant, L. c., and other's, Geology of the 

Worland-Hyattsville area: u. s. Geol. Survey Oil and Gas Inv. Preliminary Map 84, May 1948. 

St~pp, T. E., and French, H. F., Geologic and structure map of the Little . Buffalo Basin oil and gas fi~ld and vicinity, Park and Hot Springs Counties, Wyo.: u. s. Geol. Survey Kin. Resources Map, Dec. 7, 1945. 

Pierce, w. G., and Andrews, D. A., Geology and coal reserves of the region south of Cody, Park County, Wyo.: u. s. Geol. Survey Bull. 921-B, pl. 14, 1941. 

Hewett, D. F., Geology and oil and coal resources of the Oregon Basin, 

Meeteetse, and Grass Creek Basin quadrangles, W7o.: u. s. Geol. 

Surve7 Prof. Pape-r 1-45, p. 10, 1926~ 

Y Williams, II. D., and Sharke7, H. H. R., Geology of the Bargee area, 

Irremont County, W:ro.: u. s. Geol. Survey Oil and Gas Inv. Preliminary Map 56, June 28, 1946. 

\ 

§/ 

Hares, C. J., and others, Geologic map of the southeastern part of the 

Wind River Basin and adjacent areas in central Wyoming: U. S. Geol. 

Survey Oil and Gas Inv. Preliminary Map 51, Feb. 25, 1946. 

Dobbin, c. E., Bowen, c. F • ., and Hoots, H. w., Geology and coal and oil 

resources of the Hanna and Carbon Basins: u. s. Geol. Surver Bull. 

804, PPe 9-10, 1929. 

Schultz, A. R., Oil posaibilitt es in am around Baxter Basin in the Rock 

Springs uplitt, Sweetwater County, Wyo~: u. s. Geol. Survey Bull. 

702, p. 24, 1920. 

Schultz, A. R., The southern part of the Rock Springs coal field, Sweetwater County, Wyo.: U. S. Geol. Survey Bull. 381, pp. 223-224, ~1910. 

Schultz, A. R-., Geology and geography of a portion ot Lincoln County, Wyo.: U. s.· .Geol. Survoy Bull. 543, pp. ·29-30, 1914. 

Veatch, A. c., Geography and geology ot a portion ot southwestern Wyoming:. U. S. Geol. Survey Prot. Paper 56, p. 50, 190?. 

9 
The townships in known and probable coal-bearing 

regions for which no reserve estimates are given are 

listed in table 2. Table 3 gives a quantitative analysis 

of these ·omitted areas as compared to the total coalbearing area of Wyoming. A few areas in Wyoming, of 

which Goshen County is a typical example, contain coal 

that is thinner than the minimum established for the 

purpose of preparing the accompanying estimate of re-

. serves. These areas are not shown in table 2, which 

includes only areas for which information is lacking, 

but are included with the areas listed as having been 

appraised in table 3. Estimates of the reserves in all 

other townships in Wyoming are given in table 4 to ll. 

Table 3 reveals strikingly the fact that, of the 

40,055 square miles of known or probable coal-bearing 

land in Wyoming, 21,413 square miles or 53. 46 percent 

of the total had to be omitted in preparing the accompanying estimate of reserves. As this vast area is 

mapped and prospected, it is certain that additional 

coal will be discovered and that the coal reserves of 

the State will be increased accordingly. 

WYOMING COAL FIELDS 

Wyoming contains 10 major coal-bearing areas. 

(See figs. 2 and 3.) Three of these areas, the Black 

Hills region, the Powder River Basin, and the Goshen 

Hole field, are in the Northern Great Plains province, 

which covers approximately the eastern fourth of the 

State. The remaining seven regions--the Bighorn Basin, 

the Wind River Basin, the Hanna field, the Rock Creek 

field, the Green River region, the Hams Fork region, 

and the Jackson Hole field--are in the Rocky Mountain 

province, which includes the western three-fourths of 

the State. 

The coal-bearing rocks in Wyoming range in age 

from Lower Cretaceous to Eocene, but those containing 

most of the reserves range from the Mesaverde and 

equivalent formations of Upper Cretaceous age to the 

Wasatch formation of Eocene age. The coal-bearing 

formations as named in different parts of Wyoming, and 

their thickness ranges in the respective areas, are · 

shown in the stratigraphic chart (fig. 4)'" 

Wyoming coal ranges in rank from lignite to high 

volatile A bituminous. Lignite occurs only in the northeastern part of the Powder River Basin and is in such 

small quantity that it is included in the estimates of 

reserves with sub-bituminous (!Oal, which is found in 

nearly all the coal regions of the State. Bituminous 

co·al occurs in the Black Hills region, the Hanna field, 

the Kindt Basin field, the Little Snake River field, the 

the Great Divide Basin field, the Rock Springs field, 

the Hams Fork region, and the Silvertip field. The 

highest-rank coal, high volatile Band A bituminous, is 

restricted to beds in the Frontier formation of Upper 

Cretaceous age in the Hams Fork region. 

Each of the Wyoming coal fields is discussed in 

detail in the following pages. All sources of informa~ · 

tion are listed in footnotes or in the selected bibliography on paqes 75-76. In the descriptions of the fields, 

the townships comprising the fields are given, even 

though it was impossible to show these land subdivisions on the small-scale index maps (figs. 2 and 3). This 

circular is complementary, however, t? a map titled 

10 

"Coal resources map of Wyoming, 11 3/ drawn to a scale 

of about 8 miles to the inch, which Shows the townships, outcrops of coal beds, and coal-bearing areas 

in more detail. 

Black Hills region 

General features· 

The Wyottlinq part of the Black Hills region is in 

Crook and weston Counties in the northeastern part of 

the State. This region is a dissected plateau tilted 

slightly away from the Black Hills, which are to the 

east in South Dakota. The plateau is under lain by the 

massive Lakota sandstone of Lower Cretaceous age, 

which is from 150 to 300 feet thick and contains a few 

beds of shale and coal. 

The minable coal in the region is confined to a 

single bed, which crops out sporadically at or near the 

base of the Lakota sandstone. The outcrol'ls occur in a 

narrow, discontinuous belt that enters Wyoming near the 

town of Newcastle and leaves it near the northeastern 

corner of the State. The most westerly exposures are 

in Tps. 50 and 51 N., R. 64 W. Coal thick enough to 

mine. occurs at several localities, the largest quantities being in the Cambria field. 

Description of fields 

Cambria field. --The Cambria field {fig. 3, loc. 25) 

is near Newcastle, in northern Weston County, in Tps. 

45 and 46 N., Rs. 61 and 62 W. The coal crops out in 

the walls of steep canyons, about 200 to 300 feet below 

the surface of the plateau. Over an area of about 12 

square miles the coal generally is 3 to 10 feet thick, 

solid coal at some places, coal with sandstone and shale 

partings at others. Outside this small area the coal 

thins rapidly and merges into a zone composed targely 

of carbonaceous shale. 

Most of the coal in the Cambria field is of high 

volatile C bituminous rank. An analysis, on the as- received basis, of a sample from the Antelope No. 3 

mine, ~haws 16. 6 percent ash, 4. 9 percent sulfur, and 

~0,247 B. t.\!-. The su._].fur content of the coal, which 

averages higher than that from any other Wyoming field, 

is particularly noticeable. However, much of the sulfur can be removed by treatment. Coal from certain parts 

of the bed has coking qualities and has been employed 

in the past for manufacturing coke for smelters in the 

Black Hills region. The mines in the Cambria field 

have been closed for a number of years, and most of 

the better-quality and more accessible coal has been 

mined out. 

· . Other fields.-- Field~ in the Black Hills region, 

othe:i=1liiii 'Ilie'CYambria, on which reserves have been 

computed are the 'Skull Creek, Sundance, and Aladdin 

fields, all of which contain bituminous coal in the Lakota sandstone compara,ble to that in the Cambria field. 

The Skull Creek field. (fig. 3, lac. 24), near the corner 

of Tps. 47 and 48 N., Rs. 62 and 83 W., is the largest 

of ~ese fiel~ •. The SUndance fiel4 (fig. 3, lac. 23) is 

3Berryhill, H. L.~ Jr., .Brown, D. M., Burns, R.N., am Combo, J. X., 

Coal resources map of Wyominq: U.S. Geol. Survey Coal lnv. Map C 6, 

1~. Price,. Sl.OO. 
about 25 miles north of the Skull Creek exposure, ·and· 

the Aladdin field (fig. 3, loc. 22) is farther north in 

T. 54 N., R. 61 W. The quantity of coal in·these areas is s~all. · 

Reserves and production 

Nearly all the reserves in the Wyo~inq part of the 

Black Hills reqion are concentrated in the C~bria 

field, the original reserves of which are estimated at 

about 36 ~illion tons (table 13). Reported production 

from the beginning of mining to Dee. 31, 1949, is more than 10. 5 million tons, and mining losses have probably 

equaled that figure, giving 21 million tons mined and 

lost in mining and about 15 million tons remaining in 

the qround. Most of this present reserve is in small 

pockets that would be difficult and expensive to mine, 

and for that reason the field as a whole is usually considered to be "mined out. " It is possible, however, 

that under favorable conditions a considerable ~ount 

of this coal might be recovered by small ·operations, 

though -it is not attractive to large compani-es. 

Estimated oriqina.l reserves in fields in the Black 

Hills reqion other than the C~bria field are about 6 

million tons. 

Powder River Basin 

General features 

The Powder River BS.sin, which covers more than 

12,000 square miles in northeastern Wyominq, includes 

parts of Sh~ridan, Crook, Weston, C~pbell, Johnson, 

Niobrara, Converse, and Natrona Counties and is a continuation into Wyoming of the vast reqion, underlain 

by the ~oal-bearinq Fort Union formation, that includes· 

northwestern South Dakota, "the western half of North 

Dakota, and most of the eastern half of Montana. The 

principal towns in the basin are Sheridan and Gillette, 

both of which are on the Chicago, Burlington & Quincy 

Railroad, which crosses the northern part of the area 

in a general northwesterly direction. 

Structurally, the Powder River Basin is a gentle 

syncline, downfolded b~tween the Bighorll Mountains on 

the west and the Black Hills on the east. The axis of 

the syncline is considerably west of the center of the 

basin, and this asymmetry is reflected in the dips of 

the rocks, which are usually less than 5° on the east 

side of the' basin but considerably steeper and more irregular on the southwestern and western edges close to 

the ~ighorn Mountains. The surface of the area is a ~issected plain, characterized in so~e places by badland topography. Burned co~ beds, which are more resistant to erosion than the other strata, are pro~inent in the area and cap some of the land forms. 

The rocks exposed in the Powder River Basin are mostly sandstone and shale of the Lance formation of 

Upper Cretaceous aqe and the Fort Union and Wasatch 

formations of Paleocene and Eocene aqes, respectively 

(fig. 4). The Lance contains small ~ounts of impure 

coal that are of little com~ercial i~portance; all the reserves reported for the basin, therefore, are in the 

Fort Union and Wasatch formations. The· Fort Union 

consists of 1,000 to 3,200 feet of alternatinq sandstone, 

shale, and coal; it is divided fro~ oldest to youngest 

into the Tullock, Lebo shale, and Tongue River mem- bers. The Tullock and Lebo shale members contain 

11 

coal only locally; most of the ~le coal is in the 

Tongue River member, which is 500 to 800 feet thick. 

The Roland coal, the thickest and most extensive coal 

bed in Wyoming~ is at or near the top of the Tongue 

River member. 

The Wasatch formation, which in the Powder River 

Basin is 1,050 to 3,500 feet thick, is composed larqely 

of shale, sandstone, and coal. In the eastern part of 

th·e basin the formation contains the thick and persistent Felix coal bed, and in the central and western parts 

another thick coal bed, the Healy or Lower Ulm, is ex- posed. Oriqinally these beds weJ;"e in all probability 

continuous over la.rqe areas, but much of the coal has 

been removed hy erosion and the remaininq outcrops 

have been burned extensively. 

Several coal beds in the Powder River Basin, particularly the Roland and Felix beds, are believed to be 

continuous, ·or nearly continuous, for long distances 

across several fields. The Roland bed is persistent over a north-south distance of about 100 ~iles; the 

higher Felix bed, for about 80 miles. Other beds, particularly the Lower~~ have also been traced across several fields. 

The coal in the eastern part of the Powder River 

Basin is of sub-bituminous C rank,. or is gradational 

between lignite and sub.o.bituminous C coal; some liqnite 

may be pre~t locally. In the western part of the basin 

the coal is of sub-bituminous C and Brank. 

In qeneral, the coal beds in the Powder River 

Basin are thickest in the northern part of the basin and 

thin toward the south. The ~ost persistent beds are on the eastern and northern sides, where the enclosing 

strata have relatively low dips. On the southern and 

southwestern sides the coal .beds are notably lenticular, 

dips are relatively steep, and some structural disturbances, indicated by faul.tinq, have taken place. Most 

of the mininq in the reqion has been concentrated around 

the town of Sheridan, in the northwestern part of the 

basin, and at Wyodak, near Gillette, on the eastern 

side.-

Description of fields 

In all, 12 coal fields in the Powder Ri~r Basin 

have been named and descriped. (See fiq. 3.) The 

Sheridan, Spotted Horse, and Little Powder River 

fields for~ the northern part of the basin. The Powder 

River, Pumpkin Buttes, and Gillette fields are on the · eastern limb. Three fields, the Glenrock, Lost Sprinq, 

and Dry Cheyenne, are in the southern end of the basin, 

and two others, the Sussex and Buffalo fields, are on the southwestern limb. The Barbe:r field and much of 

the unmapped area of the basin are approxi~ately in 

the center. Each field will be discussed, beqinninq 

with the Sheridan field and continuinq clockwise around 

the basin. 

Sheridan field.--The Sheridan field (fiq. 3, loc. 10) 

is in Shertaan County and covers about 1,100 square 

miles in Tps. 54-58 N., Rs. 79-86 w. It is. bounded 

on the north by the Wyoming-Montana State line.~ on the 

east by the Spotted Horse and Powder River fields, on the south by the Buffalo field, and on the west by the 

western limit of workable coal in the Powder River 

Basin. The Chicaqo, Burlinqton & Quincy Railroad crosses the field, passinq throy.qh the town of Sheridan. 
The coal-bearing rocks in the field are sandstone 

and shale of the Lance, Fort Union, and Wasatch formations (fig. 4). The Lance formation, of Upper Cretaceous age, locally contains a few thin coal beds, which 

are of little economic importance. The part of the Fort 

Union formation, of Paleocene age, that underlies the 

Tongue River member contains two workable coal beds 

known as the Masters No. 1, about 75 feet below the 

base of the Tongue River member, and the Masters No. 

2, about 60 feet below the Masters No. 1. The average 

thickness of each of the Masters beds is about 6 feet; 

the maximum thickness is 16 feet. 

By far the largest reserves in the Sheridan field 

are in seven workable coal beds in the Tongue River 

member of the Fort Union formation. These beds are 

exposed in the northwestern part of the field near the 

town of Sheridan. The base of the lowest, the Carney, 

is also the base of the Tongue River member. The 

Carney bed is 7 to 20 feet thick. About 85 feet above 

the Carney is the Monarch bed, the thickest in the field, 

which ranges from 8 to 36 feet. The Carney and Monarch beds apparently merge to the north and east of the 

exposures near Sheridan and in Montana form a single 

bed. 

About 210 feet above the Monarch is the Deitz No. 

3 coal bed, which has an average thickness of 12 feet 

but is as much as 24 to 30. feet thick loca:lly. The Deitz 

No. 2 bed is 7 to 12 feet thick and is about 100 feet above 

the Deitz No. 3. The Deitz No. 1, which is 7 t'o 15 feet 

thick, is about lOOfeet above the Deitz No. 2. The 

sixth of the minable coals in the Tongue River member, 

the Smith, is 210 to 215 feet above the Deitz No. 1 and 

is about 5 feet thick. The highest bed in the member is 

the Roland, about 125 feet· above the Smith bed; the 

Roland coal, which is locally as much as 13 feet thick, 

is the top of the. Fort· Union formation in this area. 

The rocks in the northwestern part of the Sheridan 

field, where the coal beds of the Tongue .River member 

are exposed, dip 1 o to 4° E. to SE. The coal is of subbituminous C and B rank. The average of ten analyses, 

on the as-received basis, of samples from mines in the 

Monarch bed, shows 4. 3 percent ash, 0. 54 percent sulfur, and Q,366 B. t. u. -

Available analyses of coal from the Sheridan field 

are spotty in distribution and do not represent all beds.' 

Those that are available show an increase in sulfur content from the lower to the higher beds, as shown in the 

following tabulation: 

Sulfur content of coal in the Sheridan field, by beds 

Bed Number of !Range of sulfur Average sulfur 

analyses (percent) (percent) 

Deitz No. 2 8 o. 73- 1. 30 O.Q4 Deitz No. 3 8 . 31- .60 .50 

Monarch 57 . 26- 1. 00 . 51 

Carney 16 • 28- . 42 • 33 

In the south-central part of the Sheridan field the 

Fort Union formation is concealed, but the basal 1,000 

to 1,200 feet of the overlying Wasatch formation locally 

contains several' workable coal beds. None of these 

?eds have been mined, and all are of relatively minor 

Importance. The upper part of the Wasatch contains 

the Ulm coal gr.oup, consisting of the Lower Ulm bed 

12 

and, about 100 feet higher, the Upper Ulm bed. These 

coals have been removed by erosion from a large part 

of the field and, where they are exposed, have been extensively burned along the outcrops. However, they 

contain in the aggregate large reserves. No analyses 

of coal from the younger rocks in the Sheridan field are 

available, but the coal is probably of sub-bituminous 

C orB rank. 

Powder River field.--The Powder River field (fig. 

3, 1oc:-rnr, ascustmguished from the Powder River 

Basin, is southeast of the Sheridan field and includes 

about 1,000 square miles in Campbell, Johnson, and 

.Sheridan Counties. The field, which is shaped someWhat like an hourglass, trends generally northwest between the Spotted Horse and Barber coal fields. For 

convenience in discussion, it is here divided into a northwestern ·and a southeastern part, the dividing line being 

approximately the divide between the Powder River and 

Little Powder River drainage systems. The northwestern part includes Tps. 50-52 N., R. 74 W.; Tps. 51 and 

52 N., R. 75 W.; and Tps. 52-55 N., Rs. 76-78 W. The 

Powder River flows north through the central part of 

this area. 

The coal-bearing rocks exposed in the northwestern part of the Powder River field are the Tongue River 

member of the Fort Union formation and the overlying 

Wasatch formation. In the Fort Union formation the 

lowest minable coal is the Smith bed, which crops out 

in the northern tier of townships (T. 55 N., Rs. 76-

78 W.) but possibly underlies all parts of the field 

where the Tongue River member occurs. Where exposed, the Smith bed generally consists of about 10 

feet of good coal. 

About 80 feet above the Smiti) bed is the Roland 

coal bed, which, like the Smith, crops out only in the 

northern tier of townships. The thickness of the 

Roland bed is 3 to 7 feet, and the interval separating 

it from the Smith bed thins from west to east. 

The Wasatch formation contains three important 

coal beds: the Arvada, Felix, and Lower Ulm. The 

lowest bed, the Arvada, is 125 to 225 feet above the 

Roland bed and not far above a coquinalike limestone 

stratum that forms a convenient horizon marker. The 

Arvada coal has a maximum thickness of 12 feet and an 

average thickness of g feet. 

The Felix coal bed is 375 to 400 feet above the 

Arvada and reaches its maximum thickness ·Of 30 feet 

near the Echeta station on the Chicago, Burlington & 

Qulncy Railroad. East of the Powder River the bed 

averages more than 10 feet in thickness, but it thins 

to the northwest. 

The highest minable coal in the field is the Healy 

bed, which is about 400 feet above the Felix bed and 

is exposed only in the highest parts of the area, where 

much of it has been burned along the outcrop. Where 

it has not been burned, its thickness at most outcrops 

is 10 to 15 feet . 

Except for local rolls,. the coal beds in the northwestern part of the Powder River field are essentially 

flat lying. The coal is of sub-bituminous C and B 

rank. · 

The southeastern part of the Powder River field 

includes Tps. 48-52 N., Rs. 70-73 W. It is south of 
the Spotted Horse and Little Powder River fields and 

extends eastward from the divide between the Powder 

River and Little Powder River drainage systems to 

·the eastern limit of minable coal in the Powder River 

Basin. 

The rocks exposed in the southeastern part of the 

Powder River field are the Tongue River member of 

the Fort Union formation and the Wasatch formation. 

The most important coal beds are the Smith and Roland 

beds, both -of which are in the Tongue River member of 

the Fort Union. The Smith bed crops out in an eastward-facing escarpment along a general northerly direction across the entire field. It reaches a maximum 

thickness of 38 feet in T. 50 N., R. 71 W., and thins 

both north and south· of that township. It is, however, 

of minable thickness along most of its outcrop where it 

has not been burned. 

The Roland bed is the thickest and most extensive 

coal in Wyoming. InT. 51 N., R. 72 W., it reaches 

a maximum thickness of 108 feet. InT. 50 N., R. 71 

W. , in the vicinity of the Wyodak strip mine, it apparently merges with the underlying Smith bed to form an 

aggregate thickness of about 90 feet, with only an 8-inch 

parting separating the two beds. About 3 miles no:J;"theast of the Wyodak mine the Roland coal is 30 feet above 

the Smith; and 2 miles northeast, where the Roland is 

eo feet thick, the interval between it and the Smith is 

76 feet. At Gillette, about 6 miles west of Wyodak, the 

Roland coal bed is 340 feet below the surface and about 

90 feet above the Smith. At this point the Smith coal 

bed is 22 to 35 feet thick and the Roland bed is 55 to 

65 feet thick. West of Gillette the interval separating 

the two coals thickens considerably. 

The average dip of the coal beds in the southeastern part of the Powder River field is about 2° W., 

though steeper dips, in one place as much as 8°, are 

present locally. The coal is considered to be of subbituminous C rank, though some lignite may be present 

locally. 

In the southeastern part of the Powder River field, 

a series of thin lenses of coal in th~ Wasatch formation 

apparently represents the Arvada bed, which is exposed in the areas to the west. The higher Felix coal 

bed, which has been removed by erosion east of the town 

of Gillette, is relatively persistent throughout it;:; outcrop area and ranges in thickness from 7 to 22 feet, 

nearly all of which is clean coa.I. The higher coal beds 

in the Wasatch are not exposed in the southeastern part 

of the Powder River field. 

Spotted Horse field.--The Spotted Horse field (fig. 

3, loc:-rrr-is shapecrTike an inverted "L" and is bounded 

by the Sheridan field on the west, the Powder River field on the south, the Little Powder River field on the east, 

and the Montana-Wyoming State line on the north. The 

northern part of the field, in Tps. 58-58 N., Rs. 74-78 

W. , has not been mapped, and because of the lack of 

reliable information, no estimate of reserves in this 

area has been )!lade. In all probability, however, a 

considerable amount of coal occurs in the Fort Union 

formation. The Wasatch formation is not present in 

this part of the field. 

· The southern part of the Spotted Horse field includes 

about 270 square miles in Tps. 53-55 N., Rs. 74 and 

75 W. and the western half of R. 73 w. This area was 

13 

mapped in detail by the U. s. Geological Survey in 

1949. 

The strata exposed in the southern part of the 

Spotted Horse field are the Tongue River member of 

the Fort Union formation and the Wasatch formation. 

The Fort Union contains two important coal beds, and. 

the Wasatch.formation contains three. The lowest coat 

bed in the Tongue River member is urinamed and of 

local extent. It is exposed in T. 53 N., R. 73 W., where 

it ranges from 3. 7 to 14. 2 feet in thickness and is clean 

cO'al. except for a 2-inch parting in the 14. 2-foot section. 

About 30 feet above this local bed is the Smith bed, 

which is 1. 8 to 13 feet thick and is exposed over a 

large area. It is markedly shaly, however, ~ept to 

the south, in T. 53 N., R. 73 W., where it contains 

3. 4 to 12. 7 feet of clean ~oal. The Roland bed, the 

highest coal bed of the Tongue River member, does not 

crop out in the Spotted Horse field. 

The lowest coal bed in the Wasatch formation is the 

Felix, which is 2. 9 to 29 feet thick but in ~any places 

is shaly in the lower part. InT. 53 N., R. 73 W., the 

Felix bed is 12 feet thick but is divided into two benches 

by a parting 3 to 5. 9 feet thick. The next succeeding 

bed is the Scott, which, though widespread, is less 

than 2. 5 feet thick over most of its outcrop and thins 

noticeably toward the south. The Lower Ulm bed. is 

about 340 feet above the Scott in the western part of the 

field, but the interval thins to about 280 feet at the west- ern boundary. This bed has a maximum thickness of 

17 feet to the north but thins toward the south. It is 

composed mostly of clean coal. 

The rocks in the Spotted Horse field are nat lying 

or dip very slightly. No analyses are available, but 

the coal probably is of sub-bituminous C rank, com- parable to that in the adjacent Sheridan and Powder 

River fields. 

Little Powder River field.--The Little Powder 

RiveFnerd~ '"i'O'C:-~cludes about 540 square 

miles in Campbell County, in Tps. 53-58 N., Rs. 71-

73 W. It is east of the Spotted Horse .field and north of 

the southeastern part of the Powder River field. The 

northern boundary is the Wyoming-Montana State line; 

the eastern limit is roughly parallel to, but 6 to 12 miles 

east of, the Little Powder River. The area as a whole 

is mu.Ch dissected and has an average relief of 300 to 

400 feet. In the western part of the field the rocks dip 

about 1 o SW., but the angle of dip increa.Ses toward the 

eastern edqe. 

In the northeastern part of the field the Lance 

formation contains several bed~ of lignite that are too 

thin and impure to be considered minable. The ·largest 

coal reserves are in the Tongue River memb~r of the 

Fort Union formation, which crops out west of the 

Little Powder River and is 800 to 1,000 feet thick. It 

is. composed mostly of sandstone, shale, and coal. 

The coal beds in the Little Powder River field have 

been designated by letters, bed A being the highest and 

bed J the lowest. The most persistent are bed E, about 

350 feet above bed J, and bed C, about 170 feet above 

bed E. Most of the other beds can be traced for short 

distances only, as the thickriess and sequence of the 

rock are extremely variable. Bed ·E has an average 

thickness of 6. 4 feet and, except in the southern part 

of the field, contains few partings. Bed C is more 

than 10 feet thick along most of its outcrop and at one 
place consists of 24. 5 feet of coal and only 0. 5 foot of 

partinq. Characteristically it is burned alonq the outcrop, and possibly only a small amount remains in the field~ 

The coal in the Fort Union formation in the Little 

Powder-River field is difficult to classify because of 

the scarcity of analyses. It is near the boundary between liqnite and sub-bituminous coal and for convenience is included with sub-bituminous coal in the estimates of reserves. 

Gillette field.--The Gillette field (fiq. 3, loc. 18), 

on the eastern side of the Powder River Basin, includes 

more than 3,000 square miles in Tps. 39-50 N., Rs. 

65-69 W.; Tps. 39-47 N., Rs. 70-72 W.; and Tps. 39-

42 N., Rs. 73 and 74 W." The field is in parts of 

Campbell, Crook, Weston, Niobrara, and Converse 

Counties. The town of Gillette, for which the field is 

named, is outside its boundaries, though the important 

mininq district at Wyodak in the southeastern part of 

the Powder River field was described originally in 

U. S. Geoloqical Survey Bulletin 796 as the "northwest- ern part of the Gillette field." 

The coal-bearinq rocks in the Gillette field are about 2,000 feet thick and include the Lance, Fort 

Union, and Wasatch formations. The coal beds are desiqnated by letters, beqinninq with _the topmost bed. 

The lowest of these, bed R and bed S, which are exposed 

in the northeast corner of the field in the Lance formation, are thin and of little importance. The two lower 

members of the Fort Union formation contain a considerable number of beds, which, however, are of little 

economic value except for beds J and K in the Lebo 

shale member, which are fairly persistent and individually are about 5 feet thick. In the uppermost, or Tongue· 

River, member of the Fort Union, the lowest important 

coal beds are beds E and F, which crop out in the south- ern and central parts of the field, respectively, and 

probably represent the same horizon. The averaqe 

thickness of these coal beds is about 5 feet. Between 

50 and 75 feet above bed E is bed D, which extends north 

and south across the field and probably underlies most 

of the wester.n half. Bed D has been correlated with the 

Roland coal bed of adjoining- fields~- It is 8 to 16 feet 

thick throughout most of the field but reaches a maxi- mum thickness of 35 to 65 feet in the southern part of 

T. 41 N., R. 71 W., from which point it thins r~pidly 

to the south. At some places shale partinqs are common in bed D and are thick enouqh locally to se~rate 

it into benches. · . 

Bed C, 200 to 400 feet above bed D, crops out across the field from north to south and ranqes from 

3 to 12 feet in thickness. ·It is notably lenticular, however, apd shale partinqs are common. · In places these 

partinqs. thicken and replace the coal within short 

distances. 

Bed B, -~to 000 feet above bed D, is second only 

to it in reserve tonnaqe of coal. Bed B crops out over most of the .western part of the field, where its thick- ness ranqes· up to 21 feet. It has been correlated with 

the Felix bed of adjacent fields. Bed A is about 50 feet 

above bed B and, though 4 to 8 feet thick in places; is 

of local extent only. 

. In the northeast corner of the Gillette. field, where 

thin and impure coal beds are exposed in the Lance 

14 

formation, dips as steep as 30° have been observed. 

In the important coal-bearinq areas to the west, however, dips qenerally do not exceed 5°. 

Most of the coal in the Gillette field is of subbituminous C. rank, thouqb. some liqnite possibly is 

present. The averaqe of four scattered analyses, on 

the as-received basis, of samples from bed D shows 

6. 8 percent ash, 0. 5 percent sulfur~ and 7,868 B. t. u. 

Pumpkin Buttes field.--The Pumpkin Butte_s field 

(fiq. 3, foe. f'7),1Ylng west of the Gillette field, is a larqe T-shaped area near the center of the Powder 

·River Basin. Only the northeastern part of the field, 

· in Tps. 43-47 N., Rs. 73 and 74 w., and Tps •. 43-46 

N., Rs. 75 and 76 W., has been mapped. This area 

covers about 650 squar.e miles. A careful reconnais- sance did not disclose any coal outcrops either in the 

southern part of the field, includinq Tps. 39-42 N., 

Rs. 75 and 76 W., or in the northwestern part of the 

field, in Tps. 43-46 N., R. 77 W., and Tps. •44-46 N., 

Rs. 78-80 W. These two unmapped areas cover about 

760 square miles. 

The coal beds in the mapped parts of the Pumpkin 

Buttes field occur in the Wasatch formation. The coal 

is found in three areas: the Pumpkin Creek area, 

mostly in T. 46 N., R. 75 W.; the Divide area, mostly 

in T. 47 N., R. 74 W.; and the Belle Fourche area, near the eastern edqe of the field and mostly in Tps. 

43-46 N., R. 73 W. The lo.west coal bed exposed in 

the field, bed E, crops out in the Belle Fourche area; 

.in the banks of the Belle Fourche River, where it ranqes 

from 2. 7 to 18 feet in thickness. A bed that is possibly 

identical with bed E is exposed in the Pumpkin Creek 

area, but ther\3 it contains only 2 to 7 feet of impur.e 

coal split by many partinqs. 

Bed E of the Belle Fourche area has been corre- lated with bed B, or the Felix eoal bed, of the Gillette 

field. An interval of about 60 feet separates it from 

hiqher bed D, which is 1. 7 to ?. 6 feet thick but is 

markedly irreqular. in thickness and c-omposition~. 

The highest coal beds in the field, beds C, B, and 

A 1 crop out in the Divide area. Of these, beds C and 

A are too thin at most outcrops to be of any value, and 

only bed B contains important reserves. It ranqes in 

thickness from 6 to 11 feet, .most of which is clean· 

coal. Bed E, exposed in the Belle Fourche area,· 

probably underlies both the Divide area and the watershed between it and the Belle Fourche area. 

In qeneral the dips of the coal beds in the Pumpkin 

Buttes field are low. The coal is of sub-bituminous 

rank. 

In the oriqinal report on the Pumpkin Buttes field, an area southeast of the field just described was mapped 

and desiqnated the "Dry Cheyenne area." As it is sep .. arated from the mapped part of the Pumpkin Buttes 

field by a distance of about 25 miles, it is treated in 

this report as.a separ.ate field. 

Dry Cheyenne field.--Th~ Dry Cheyenne field (fiq. 

3, loc. 19) inciUdeSTPs• 37 and 38 N., Rs. 71-74 w., 

and covers ail area of about 200 square miles. The ex- posed rocks in the field are stratig-raphically lower 

than those in the Pumpkin Buttes field and include only 

the upper part of the Tonque River member of the Fort 
Union formation and the overlying Wasatch formation. 

Of the three coal beds exposed in the field, the lowest 

and thickest is bed H, exposed in the banks of the Dry 

Cheyenne River, which has been correlated with the 

Roland or bed D of the Gillette field. Here, as in most 

areas to the north, the top of the Roland coal is considered to ·be the top of the Fort Union formation. 

Though it is the most extensive coal in the field, the 

Roland has a maximum thickness of only 4. 3 feet, due 

to thinning of the bed from north to south. 

Bed G is about 200 feet above bed H in the Wasatch 

formation but averages only about 2 feet in thickness. 

Bed F is about 160 feet above bed G and has a maximum 

thickness of 11. 5 feet. However, it is lenticular and of 

little economic importance. 

Lost Sitlfg field.--The Lost Spring field (fig. 3, 

loc. -mJ1nc u es about 1,060 square miles at the southeast end of the Powder River Basin in Tps. 32-38 N., 

Rs. 65-70 W., and Tps. 32 and 33 N., R. 71 W., in 

Converse and Niobrara Counties. The Chicago and 

North Western Railway crosses the field near its 

southern border through the towns of Lost Spring and 

Douglas. The Lost Spring field is south of the Gillette 

field and east of the Dry Cheyenne field. 

The coal in the Lost Spring field is in the Fort 

Union formation and is confined to two zones separated 

by about 600 to 700 feet of non-coal-bearing strata. 

The coal bed in the lower zone, which crops out in the 

southern and eastern parts of the field, is lenticular, 

and the maximum thickness of any bed is 6 feet. However, several mines have been operated in these beds 

within an area about 10 miles long, west and northwest 

of the town of Lost Spring. 

The upper coal zone is exposed in the northern part 

of the field. The beds in this zone are designated by 

letters, beginning with the low·est, contrary to the usual 

practice in the Powder River Basin, and several are 

fairly persistent over large areas. Bed E, the highest, 

has a maximum thickness of 9. 6 feet. This bed has 

been correiated with bed J of the Gillette field, and bed 

B, which is lower, with bed K of that area. The coal 

in the upper coal zone is considerably better in quality 

and the beds are more consistent than in the lower zone, 

but they have not been developed, probably because of 

lack of transportation facilities. 

The rocks dip to the west in the northern part of 

the field and to the northwest and west in the southern 

pa.rt, the dips being usually 1° to 4 °. The coal is of 

su,b-bituminous rank. An analysis, on the as-received 

basis, of coal from a prospect pit 35 miles north of 

Lost Spring shows 4. 3 percent ash, 0. 3 percent sulfur, 

and a heat value of 8,410 B. t. u. 

Glenrock field.--The Glenrock field~(fig. 3, loc. 

20) covers an area of about 1, 500 square miles in the 

southern part of the Powder River Basin, mostly in 

Converse County but extending westward into Natrona 

Co.mty. It includes Tps. 34-36 N., R. 71 W.; Tps. 32-

36 N., R. 72 W.; Tps. 33-36 N., Rs. 72-78·W.; and 

Tps. 34-36 N., R. 79 W. The North Platte River flows 

eastward near tp.e southern edge of the field and is 

paralleled by the Chicago, Burlington & Quincy Railroad and the Chicago and North Western Railway. 

15 

About 5,800 feet of strata, containing four coal 

zones, is exposed in the field. The two lowest coal 

beds, bed A and bed B, are too thin to mine. About 

. 1,400feet above bed A is the Glenrock-Big Muddy zone, 

which contains two beds that at some places are of 

minable thickness. The base of the Douglas-Inez coal 

zone is about 2,500 feet above the base of the GlenrockBig Muddy zone. This zone also contains two coal beds, 

each more than 5 feet thick. The beds in both zones, 

however, are lenticular and cannot be traced over large areas. 

Neither the rocks nor the coal beds in the Glenrock 

field have been correlated with those of adjacent area$. 

The small amount of evidence available points .to Cretaceous age for beds A and B and Tertiary aqe for the 

Douglas-Inez beds; the age of the Glenrock-Big Muddy 

coal has not been determined. 

The rocks in the Glenrock field form part of tl~e 

southern edge of the Powd.er River Basin. Along the 

southern border, near the Laramie Range, the strata 

dip steeply to the north and northeast, but farther north, 

in the better coal-bearing areas, they are essentially 

flat lying. The coal is of sub-bituminous rank. An 

analysis, on the as-received basis, of a mine sample 

from the Upper Big Muddy zone shows 4. 8 percent ·ash, 

0. 7 percent sulfur, and a heat value of 8,970 B. t. u. 

Sussex field.--The Sussex field {fig. 3, loc. 16), 

on the southwestern side of the Powder River Basin, 

includes about 1,300 square miles in 'I'ys. 37 and 38 N., 

Rs. 75 and 76 W.; Tps. 37-42 N., R. 77 W.; Tps. 37-

43 N., R. 78 W.; Tps. 37-43 N., R. 79 W.; Tps .. 42 

and 43 N., R. 80 W.; Tps. 43-47 N., R. 81 W.; and 

Tps. 44-47 N., R. 82 W. The field is in parts of 

Johnson, Natrona, and Converse Counties, between 

the Glenrock field to the south and the Buffalo fielQ. to 

the north. 

Exposures of coal in the Sussex field are not continuous, but are confined to six relatively small areas, 

locally termed basins. Of these, basin 1, in T. 37 N., 

R. 78 W., is in rocks of probable Cretaceous age and 

contains no coal of economic importance. The other 

five basins occur along a southwest-facing escarpment 

known as the Great Pine Ridge, which extends northwest across the eastern edge of the field. Basin 2, in 

Tps. 46 and 47 N., R. 81 W ., contains seven numbered 

coal beds, which are lenticular and of minable thickness at only a few places. Basin 3, which is mostly in 

T. 44 N., R. 81 W., contains four coal beds with41 a 

stratigraphic interval of about 175 feet, but minable 

reserves are small. The only basin that contains large 

reserves is basin 4, which extends southeast from the 

southeastern part of. T. 43 N., R. 79 W., to the north- . 

ern part ofT. 41 N., R. 77 W. It contains two minable 

beds, designated the upper and lower coal beds and 

believed to be in th~ lower part of the Wasatch formation. In the central part of basin 4 the lower bed 

reaches a thickness of 50 feet but thins to 3 feet within 

a distance of less than 3 miles. Both the upper and 

lower beds are of minable thickness alGng most of 

their outcrops but contain.shale partings, which at some places are of considerable thi~kness. 

Basin 5, in T. 39 N., R. 77 W., and basin 6, in 

T. 37 N., R. 76 W., contain but little minable coal. 
The strata in the south~rn and central parts of the 

Sussex field (basins 2, 3, and 4) dip 11° to 27° E. and 

NE. Farther south (basins 5 and 6) the dips ar~J normally 5° or less. Mining in basin 4, which contains 

most of the reserves, would be handicapped, not only 

by relatively steep dips, but by several faults that cut 

across .the coal beds. 

The coal in the Sussex field ranges from sub-bituminous C to sub-bituminous Bin rank. An analysis, 

on the as-~eceived basis, of a sample from the Blue 

Rock mine near Casper shows 5. 2 percent ash, 0. 4 

percent sulfur, and a heat value of 8, 700 B. t. u. 

Buffalo field.--The Buffalo field (fig. 3, loc. 15) 

is on the wesrsi"de of the Powder River Basin, between 

the Sheridan field on the north and the Sussex field on the south. It covers about 900 square miles in Tps. 

52 and 53 N., R. 79 W.; Tps. 47-53 N., Rs. 80-82 W.; 

and Tps. 50-53 N., R~ 83 W., mostly in Johnson County. 

The coal beds in four townships of the field (Tps. 51 

and 52 N., Rs. 81 and 82 W.) were mapped in detail in 

1949; the remai.nqer of the field is covered by a reconnaissanc~ map. 

The most extensive coal beds in the Buffalo field 

are in the Wasatch formation, which includes the upper 

600 to 800 feet of strata exposed in the area. Four 

coal beds are present in this interval: bed L and the 

Dry Creek, Healy, and Walters beds. Other local 

lenses also are present but are of minor importance. 

Bed Lis confined to the eastern half ofT. 52 N., R. 

81 W., where it reaches a maximum thickness of 7. 2 

feet. The Dry Creek coal is of little economic impor-· 

tance except in T. 51 N., R. 81 W., where it reaches 

a maximum thickness of 13. 9 feet and probably underlies most of the township at minable thickness. The 

Healy bed, which is about 130 feet above the Dry Creek, 

contains the larqest reserves in the field. Its outcrop, 

however, is extensively clinkered. It reaches its greatest thickness in T. 52 N., R. 81 W., where the average 

for all complete sections is 18 feet. In the surrounding 

townships its average thickness is probably more than 

12 feet. It thins to the south but is relatively thick and 

persistent to the north. The Healy bed has been correlated with the Lower mm coal bed of the Sheridan 

'and other fields. 

The Walters coal, about 175 feet above the Healy, 

is of wide areal. extent but of little economic importance 

because of widespread burning, which is not confined to 

the outcrops, but has consumed most of the Walters coal 

in the field. 

The rocks in the Buffalo field dip gently to the northeast except near the Bighorn Mountains, where the dips 

steepen. The coal-is of sub-bituminous C rank. The 

average of three analyses, on the as-received basis, of 

samples from the Mitchell and Murikre mines shows 

9. 7 percent ash, 0. 6 percent sulfur, and 7,516 B. t. u. 

Barber field.--The Barber field (fig. 3, ioc. 14) 

incltiQe'S"al)oti£"250 square miles in Tps. 51 and 52 N., 

Rs. 77 and 78 W., and Tps. 49-51 N., R. 79 W. The 

field, which is e&sentially an eastward continuation of 

the Buffalo field, is in Johnson County, east of the 

town of Buffalo •. 

In the Barber field the Wasatch formation contains 

many coal beds, but the area has not been ~dequately 

16 

prospected and little detailed informaLion is available. 

The coal occurs in four zones. The two lower zones 

are relatively unimportant, as the beds are lenticular 

and change·rapidly within short distances. Some of the 

coal, however, is of minable thickness. The third zone 

from the· bottom, the Healy or mm zone, is of considerable extent and fairly consistent thickness. Within 

50 feet of strata, it contains one to three coal beds that 

range ·in thickness from a few inches to 18 feet. The 

hiqhest coal bed, the Walters, is about 250 feet above 

the Healy. It has been largely removed by erosion, 

and most of the remaining outcrop is burned. 

The rocks in the Barber field are essentially flat; 

lying, and the coal is of sub-bituminous C rank. The 

estimates of reserves for the field are relatively low 

because of the scarcity of reliable information, and the area undoubtedly contains more minable coal than the 

tonnag:e figures indicate. 

Central Part of the Powder River Basin..--An area of about 580 square miTes m the central part of the 

Powder River Basin, north of the Pumpkin Buttes field, 

is not covered by maps or reports of any kind. This 

area includes Tps. 48 and 49 N., R. 74 W.; Tps. 47-50 

N., R. 75 W.; Tps. 47-51 N., R. 76 W.; Tps. 47-49 N., 

Rs. 77 and 78 W.; and Tps. 47 and 48 N., R. 79 W. Although the coal-bearing rocks in this area are covered or poorly exposed, geological evidence points strongly 

to the presence of considerable coal at depth, and some 

inferred reserves for the Roland and Felix beds have 

been calculated for the area. 

Reserves and production 

The wide extent of the outcrops of the Roland and 

Felix coal beds and their equivalents on the east side 

of the Powder River Basin has been mentioned. The 

thicknesses used in calculating the reserve tonnages in 

these beds are conservative and are probably less than· 

the true average thickness for the areas underlain by 

coal. 

The estimated original reserves of coal in the 

Roland bed are 7,434,050,000 tons of measured and indicated coal and 38,141,630,000 tons of inferred coal, 

making a total for all three categories of 45,575,680,000 

tons. The reserves in the Felix coal bed, in each of the 

three categories, are 5,515,290,000 tons, 13,137,730,000 

tons, and 18,653,020,000 tons, respectively. These figures are incorporated in the township totals in tables 

7-9 and 11. 

The measured, indicated, and inferred original reserves in the entire Powder River Basin are estimated 

to total 94,881 million tons (table 13), or 78 percent of 

·the reserves for the State as currently appraised. The 

total recorded production, from 1865 through 1949, froir 

the Powder River Basin is approximately 51 million tons, 

of which more than 45 million tons has been taken from 

the Sheridan field, about 3 million tons from the Powder 

River field, and about 1. 5 million tons from the Glenrock field. The total production from the basin to January 1, 1950, is about 15 percent of that for the entire 

State. Assuming that mining losses in the past have 

been equal to the coal recovered and that this ratio will 

be maintained in the future, the reserves re.maining in 

the Powder River Basin on .January 1, 1950, totaled 

94,779 million tons, of which the ultimately recoverable 

reserves are 47,389 million tons. 
The large reserves in the Powder River Basin are due partly to the fact that the coal beds are thick and 

continuous over relatively great distances and partly 

to the fact that the coal-bearing rocks are essentially 

flat lying and crop out almost everywhere in the basin. 

This is in marked contrast to other regions--particularly the Bighorn Basin, the Wind River Basin, and the 

western part of the Green River .reqron--where the 

fields are small, seldom occupying more than a. few 

townships, and are separated from each other by large areas in which no coal crops out. Also, dips in these 

regions are relatively steep compared .with those in the 

Powder River Basin, and the coal is likely to be under 

prohibitive cover within a few miles of the outcrop. 

The small amount of mining in the Powder River 

Basin compared to other parts of Wyoming is due primarily to the fact that the coal in the basin is younger 

and of lower rank than coals obtainable elsewhere in 

Wyoming. When supplies of hiCJher-rank .coal are exhausted, or when improved methods of utilizing lowrank coals a.re perfected, the Powder River Basin may 

well develop into the. most important mining district in 

the State. · 

Goshen Hole field 

The Goshen Hole field (fiq. S, loc. 26) includes 

about 250 square miles in Tps. 19-28 N., Rs. 60-64 W., 

in southern Goshen County in an area underlain by the 

Lance formation of Upper Cretaceous aqe. The area is 

about 75 miles southeast of the southern end of the Powder River Basin. 

The coal-beariilg rocks in the Goshen Hole field are exposed in a topographic basin. Most of the coal outcrops are along Horse Creek, where several mines 

have been opened in the past. No coal more than 2. 5 

feet thick is known to occur in the field, though it is 

reported that a well near Meriden, in the southern part 

of Goshen County, penetrated one coal bed 4 or 5 feet 

thick and several thinner beds, all less than 1,000 feet 

below the surface. 

Because of the thinness of the beds at the surface, no reserves are qiven for the Goshen Hole field. No 

analyses of coal from the field are available, but the 

coal is' presumably of sub-bituminous rank like coal of 

the same aqe and geologic relationships elsewhere. 

Bighorn~ 

General features 

The Bighorn Basin, which includes about 4,400 

square miles in Biq Horn, Park, Hot Springs, and 

Washakie Counties, is a broad structural basin bounded 

by the Bighorn Mountains on the east,. the OWl Creek 

Mountains on the south, and the Absaroka Ranqe on the 

west. ·To the north the basin continues a short distance 

into Montana. The Bighorn River flows northward across the southeastern part of the· basin. The Chicago, 

Burlinqton & Quincy Railroad par~lels the river throughout most of its course in Wyominq; a bra.n,ch line of the same system extends··southwest from the northern part 

of the basin to the town of Cody. 

The Bighorn Basin is a region of brqad, ·dissected 

plains, which are characterized locally by badland 

topography. In some areas gravel deposits washed 

17 

down from the surrounding mountains cover much of 

the underlying rock. Around the mar(jin of the basin, 

particularly on the southwest side, the rocks are folded 

locally into anticlines and synclines. Where coal-bearing 

rocks are expo.sed in the anticlines, erosion of the cen- tral parts of the. structures has resulted in irregular 

patterns of coal distribution. Around the borders of 

the basin the beds dip at various angles, at places as 

much as 50°, in directions determined more by the local 

structures than by the major synclinal structure of the 

basin. 

The coal-bearing rocks in the Bighorn Basin are the Mesaverde, Meeteetse,· and Lance formations of . 

Upper Cretaceous aqe and the Fort Union formation of 

Paleocene aqe (fig. 4). These rocks are exposed around 

the rim of the basin in a belt 3 to 15 miles wide. The 

large central part of the basin, which covers about 

2,000 square miles, probably contains coal under deep 

cover, but the known reserves are in scattered, relatively small fields in the marginal belt. As a rule, the 

coal beds in these fields are lenticular and generally 

extend at minable thickness less than 5 miles alop.g the 

outcrops. This is especially true alonq the eastern 

side where, as an example, the Basin and Garland fields are separated by a distance of about 45 miles in which 

no outcrops of minable coal are known. On the southern 

and western sides of the basin the coal apparently is 

thicker and the beds have a somewhat greater areal 

extent. 

Description of fields 

The fields in the Bighorn Basin are discussed below, 

beqinning with the northernmost and continuing clockwise around the basin. 

Silverti~ field.--The Silvertip field (fig. 3, loc. 5) 

is a smatl .e liptical area, at the Wyoming-Montana 

State line, :where coal is exposed in an anticline. The 

Wyominq part of the field is in the northern part of 

T. 58 N., Rs. 99 and 100 W. 

The coal in the Silvertip field occurs in the Eagle • 

sandstone of Upper Cretaceous aqe, which has not been 

differentiated from the Mesaverde formation in other 

parts of the Bighorn Basin. One of the two minable beds 

is generally less than 2 feet thick, the other more than 

2. 5 feet. The anticline in which the coal is exposed is 

broken by many normal faults, which strike northeast 

at right angles to the axis, and in general the beds dip 

-about 20° away from the ~rest. The coal is of high 

volatile C bituminous rank. An analysis, on the as- received basis, of a sample from the Silvertip mine 

shows 9. 7 percent ash, 0. 7 percent sulfur, and 10,300 

B.t.u. 

Garland field.--The Garland field (fig. 3, loc. 6), 

north of the VIIIiqe of Garland, is mostly in T. 56 N., 

a. 99 W. Coal of minable thickness is found in one bed, 

which reaches. a maximum thickness of 6. 3 feet. Gravel 

conceals the coal horizon at several places where the 

coal bed possibly is. thick enouqh to mine. 

The exact stratigraphic position of the coal has 

not been determined, but it probably lies near the contact between the Lance and Fort Union formations. 

The coal is of sub-bituminous A rank. An analysis, on 

the as-received basis, of a sample from the Honeysett 

mine at Garland shows 6. 7 percent ash, 0. 8 percent 

sulfur, and 10,870 B. t. u. 
• 

Basin field.--The Basin field (fig. 3, loc. 7) is 

abour45ri1Ires southeast of the Gar land field, on the 

eastern side of the Bighorn Basin. It is near the mouth 

of No Wood Creek, in parts ofT. 50 N., Rs. 92 and 93 

W. Most of the minable coal in the field is confined to 

an area of about 15 square miles. 

Although coal occurs at several horizons in the 

Basin field, it is generally of minable thickness in only 

one bed, which is several hundred feet above the base 

of the Fort Union formation. The maximum thickness 

of the coal· is 8. ·5 feet, generally including many thin 

partings. Locally the bed consists of 6 feet of clean 

coal, which, however, extends for less than 3 miles 

along the outcrop. The coal is of sub-bituminous A 

rank. An analysis,· .on the as-received basis, shows 

13. 7 percent ash, 1. 8 percent sulfur, and 9,510 B. t. u. 

The high ash and sulfur contents are unusual among 

Wyoming coals. · 

Southeastern field.--The Southeastern field (fig. 3, 

loc. 8) inclUdes part of the Bighorn Basin lying east of 

the Bighorn River and south of the Basin field. Coal 

crops out in,this area in a band 6 to 10 miles wide, extending southeast from T. 49 N., R. 92 W., to T. 44 N., 

R. 89 W., and thence west to the river in T. 44 N., R. 

94 W. Exposures of coal are fairly continuous throughout this area, though many of the beds are too thin to 

mine. The areas in which the coal is of minable thickness are mostly at the southeastern corner and along 

the southern side of the field. Mining has been carried 

on in sec. 34, T. 47 N., R. 90 W., in sec. 33, T. 46 N., 

R. 89 W., and in a number of places in T. 44 N., Rs. 

90-92 W. The coal occurs in rocks of Cretaceous aqe 

and is of sub-bituminous rank. 

A trianqular area, . between the coal outcrops on the 

east and south and the Bighorn River on the west, which 

covers about 150 square miles, is included in the Southeastern field because several drill holes not far east of 

the river show as many as 15 beds of coal, some of which 

are relatively thick. These holes establish the presence 

of coal in considerable quantity in an area where the 

coal-bearing rocks are covered. Coal is probably present to the northwest, also, but at greater depth. 

Gebo field.--The Gebo field (fig. 3, loc. 9) is in 

Hot SpringSCounty at the southern end of the Bighorn 

Basin, west of the Bighorn River, and includes parts of 

Tps. 44 and 45 N., Rs. 94-97 W. According to information available at present, the field contains the largest reserves of fairly thick, good-quality coal in the 

Bighorn Basin. The coal occurs in the Mesaverde formation of Upper Cretaceous aqe in a zone between two 

massive sandstones. The thickest and most extensive 

beds are in the eastern part of the field; the most impor.tant bed is the Gebo, which has a maximum thickness of·ll feet and is more than 5 feet thick for about 

4 miles along the outcrop. Several other, less extensive beds are of minable thickness, some more than 5 

feet thick. These coals do not crop out over the entire 

field, but are concentrated in five or six relatively 

small ~eas, where they are exposed in the flanks of 

minor folds that strike northwest. The maximUDl dip is about 25 o. . 

The coal in.the Gebo field is of sub-bituminous B 

and A rank. An analysis, on the as-received basis, of 

a mine sample from the Gebo bed shows 3. 9 percent 

ash, 0. 5 percent sulfur, and 11,280 B. t. u .. Considerable 

18 

mm!nq has been done in the field, most of the recovery 

being from the Gebo bed. · 

Grass Creek field. --The Grass Creek field (fig. 

3, loc:-m-extendS"'1r'Om the southern border of T. 44 N. 

to the northern edge ofT. 46 N., Rs. 98-100 W. In. 

this area the ·Mesaverde, Meeteetse, and Fort Union 

formations all contain coal of minable thickness. Most 

of the reserves, however, are in the Mesaverde formation of Upper Cretaceous aqe, in a 160- to 220-foot 

thickness of sandstone, shale, and coal that lies above 

the massive basal sandstone of the fotmation. 

The coal beds of the Mesaverde formation are exposed in the sides of several topographic basins and 

occur in several zones, which are known by different 

names in the different basins in which they are exposed. 

The most. important of these areas is the Grass Creek 

Basin, in the northern part of the field, which contains 

coal of minable thickness at most places where the 

Mesaverde is exposed. The beds are lenticular, however, and are more than 5 feet thick in only two small 

areas. InT. 44 N., Rs. 98 and 99 W., in the southern 

part of the field, lenticular coal beds in the Mesaverde 

reach minable thickness.along most of their outcrop in 

either or both of two coal horizons. The thickest beds 

are in. the southern part of these townships, where the 

maximum thickness is slightly more than 5 feet. 

The coal beds in the Meeteetse formation,of Upper 

Cretaceous age, at most places range from 1. 5 to 2. 5 

feet in thickness and at a few places are continuous at 

a 'thickness of 2. 5 feet or more for about a mile along 

the outcrop. The Fort Union formation, of Paleocene 

age, contains some thick coal, but it is confined to a 

few small areas. 

The dips of the beds in the Grass Creek ·field range 

from 10° to 50°, the directions varying according to 

local structures.. The coal in the field is of sub-bitumi- nous B and A rank. · 

Meeteetse field.--The Meeteetse field (fig. 3, loc. 

3), extendfrl9" from the northern border ofT. 46 N. to 

the northern border ofT. 49 N., Rs. 99 .. 102 W., is a 

northern continuation of the Grass Creek field, and the 

geologic relations in the two areas are much the same. 

The thickest and most persistent occurrence of coal in 

the Meeteetse field is in the Mesaverde formation,. 

though the Meeteetse and Fort Union formations also 

contain minable coal at some places. As in the Grass 

Creek field, coal in the Mesaverde formation occurs 

above the basal sandstone and is in two zones separated 

by· a massive sandstone bed. The lower of these zones 

is called the Wilson zone, and the uppex: the Buffalo 

zone. The Wilson zone contains the largest amount of 

thick coal, which consists in most measured sections 

of a lower bench .1. 3 to 2. 8 feet thick and two to four 

upper benches separated from the lower bench by' a 

maximum of 1. 2 feet of shale. The zone is fairly persistent, and. at seVeral places the coal is more ·than 5 

feet thick. Apparently the coal is thickest and most 

persistent in T. 47 N., R. 101 W., ·but it is minable 

at other places, particularly in the adjoining townships. 

However, the total areal extent of the Wilson zone at 

Ini.n&ble thickness probably does· not exceed one township. The dip of the Wilson·coa.l beds. is generally less 

than-15°, the maximum beinq 50°. The coal is Of subbituminous B and A rank. An analysis, on the asreceived basis, of a sample from the Wilson mine shows 
12.3 percent ash, 0. 9 percent sulfur, and a heat value 

of 9, 600 B. t. u. 

The reserves of coal in the Meeteetse formation 

are smaller than those in the Mesaverde formation. A 

few small areas covered by the Meeteetse in the eastern part of the field eontaln a bed that at one place 

reaches a thickness of 8. 8 feet, two thin partings excluded. The coal, however, is at most places less than 

5 feet thick and does not extend at minable thickness for 

more than .2 miles. Near its base the Fort Union formation contains coal thick enough to mine in one small 

area in T. 49 N., R. 100 W. 

~Basin field.--The Oregon Basin field (fig. 

3, · lo~ eiteiiQs SOuthward from the vicinity of the 

town of Cody and includes parts of Tps. 50-53 N., Rs. 

100-102 W. In contrast to the series of small basins 

characteristic of other fields to the south, the Oregon 

Basin field is structurally a fairly large anticline, the 

central part of which has been removed by erosion to 

form the present basin. The thickest coal is in a zone 

120 to 340 feet thick, which overlies the massive basal 

sandstone of the Mef?averde formation and contains two 

to seven lenticular beds.· The· coal is generally exposed 

in the sides of the basin from -100 to 200 feet above the 

floor. The upper part of the Meeteetse formation also 

is coal bearing, but the beds are thin and lenticular. 

Most of the coal in the field is in the· Mesaverde 

formation, but the beds are not well exposed. The thickest section, in T. 51 N., R. 101 W., shows 8~ 2 feet of 

coal separated by two partings, each 3 inches thick. 

The bed thins, however, to 3. 7 feet of coal with an 8-

inch parting· within 1,300 feet of this exposure. At a few 

other places the coal in the Mesaverde is of minable 

thickness, but the extent of the beds is not known. 

The Meeteetse formation contains a few lenticular 

coal beds, which cannot be COl"related; locally, at outcrops a mile or more apart, however, the coal attains 

a maximum thickness of 3. 5 feet of clean coal. 

About 13 miles north of Cody, coal has been mined 

from a bed in the Mesaverde formation. This bed has 

a maximum thickness of 4. 3 feet and contains three 

partings 2 to 7 inches thick. At another place northeast of Cody, in T. 53 N., R. 101 W., a coal bed in the 

Meeteetse formation has a maximum thickness of 4. 5 

feet, 0.1 foot of parting excluded. This bed dips about 

50o NE. The coal is of sub-bituminous B rank. An 

analysis, on the as-received basis, of coal from the 

Cody mine shows 5. 5 percent ash, 0. 4 percent sulfur, 

and 10,060 B. t. u. 

Reserves and production 

The estimated original reserves in the Bighorn 

Basin, including measured, indicated, and inferred 

coal, are about 581 million tons, including 563 million 

tons of sub-bituminous coal and 18 million tons of bitiminous coal. (See table 13.) The reported production 

from the basin prior to J"anuary 1, 1950, is about 12. 5 

million tons. Assuminq that losses in mininq have been, 

and will continue to be, equal to the coal recovered,· the 

.reserves remaining in the qround in the Bighorn Basin 

on J"anuary 1, 1950, totaled 556 million tons, and the 

ultimately recoverable reserves totaled 278 million tons. 

19 

Most of the coal mined in the Wind River Basin has 

been obtained from the Gebo field, the total original reserves of which are estimated to be more than 154 milllon tons. The reported production from this field to 

January 1, 1950, is about 12 million tons. The total 

coal mined and lost in mining in the field is therefore 

about 24 million tons, and the reserves remaining in the 

ground on J"anuary 1, 1950, total 130 million tons, half 

of which may be considered as ultimately recoverable. 

Wind River Basin ------

General features 

The Wind River Basin is in central Wyoming in 

Fremont and Natrona Counties. The basin is a large 

syncline that trends west-northwest and is bounded by 

the Absaroka Range, the Owl Creek Mountains, and the 

Bighorn Mountains on the north, the Wind River Range 

on the west and southwest, a north-facing erosional escarpment known as Beaver Rim on the south,• and the 

Rattlesnake Mountains on the southeast. The basin is 

about 125 miles long and a maximum of 45 miles wide. 

As the synclinal structure is asymmetrical, dips are 

considerably steeper on the northern side than on the 

southern and in the constricted eastern part than in the 

wider central part. Throughout the basin many minor 

folds and a number of faults complicate the main 

structure. 

Most of the Wind River Basin is drained by the 

Wind River, a tributary of the Bighorn River, but the 

eastern part of the basin is drained by the Powder and 

North Platte Rivers. The topography around the borders of the basin is characterized by steep, narrow 

ridges formed by the steeply dipping sandstone beds. 

Toward the center of the l2_asin, however, the terrain 

is less rugged and is generally of the plains type. 

The Chicago, Burlington & Quincy Railroad traverses the basin westward as far as Bonneville, near 

the Bighorn River, and then turns north in the river 

valley. From Bonneville the Chicago and North Western Railway extends southwestward through the town of 

Hudson. 

In the western half of the basin the coal-bearing 

rocks are the Cody shale, the Mesaverde and Meeteetse 

formations of Upper Cretaceous age, and possibly the 

Fort Union formation of Paleocene age. The Lance 

formation, of Upper Cretaceous age, which overlies 

the Meeteetse and underlies the Fort Union, contains no eoal in the western half of the basin. In the eaStern 

hSlf of the basin the interval between the Mesaverde 

and Fort .Union formations has not been mapped in detail and at present is designated the Lewis and Lance 

formations, undivided, of Upper Cretaceous age. The 

Lewis shale of the eastern part may be the equivalent 

of the Meeteetse of the western half, though this cannot 

be definitely stated until mapping of the entire basin 

has been completed. 

The coal-bearing formations crop out only around 

the rim of the basin; in the central part they are 1Ulconformably overlain by thick units of younger non-coalbearing rocks, which also overlap the coal-bearing beds 

in some parts of the border zone. As a result, outcrops 

of coal are not continuous aro1md the rim of the basin, 
but are limited to small areas, which as a rule are 

separated by larger areas of non-coal-bearing younger 

rocks. 

The Cody shale, which is 3,050 to 4,480 feet thick, 

contains thin coal beds in several areas. The Mesaverde 

formation, 800 to 1,960 feet thick, generally consists of 

two massive sandstone members, separated by a zone 

of sandy shale that contains, in the western part of the 

basin, more coal than any other unit in the basin. The 

Meeteetse and Lance formations in the western part of 

the basin, and the undivided Lewis and Lance formations 

in the eastern part, are 350 to 3, 715 feet thick. They 

include sandy shale, sandstone, and coal. The Fort 

Union formation includes 350 to 4,165 feet of sandstone, 

sandy shale, a.p.d some coal. 

Description of fields 

The Wind River Basin contains five recognized 

coal fields, which, from west to east, are the Muddy 

Creek, Pilot Butte, Hudson, Alkali Butte, and Powder 

River fields. The last-named field, the largest in the 

Wind River Basin, contains reserves twice as large as 

those of the field with the second-largest reserves. The 

other fields, in order of descending reserves, are Alkali 

Butte, Hudson, Muddy Creek, and Pilot Butte. The 

Alkali Butte field contains the most extensive coal bed 

and one of the thickest without partings; it is 16~ 8 feet 

thick at one locality and extends at a minimum thickness 

of 10 feet for more than 2 miles along the outcrop. 

All the fields in the Wind River Basin except the 

Powder River field are wholly or in part in the· Wind 

River land survey; therefore, the land descriptions in 

the western part of the basin do not correspond with 

those in the eastern part or in other parts of Wyoming. 

The townships in the Wind River survey are numbered 

north and south from a base line that passes a few miles 

north of the town of Hudson; the ranges are numbered 

east and west from the Wind River meridian, which 

passes through the Muddy Creek field and the eastern 

edge of the Pilot Butte field. 

Muddy Creek field.--The Muddy Creek field (fig. 

3, lo~,-wniCh mcludes about 430 square miles in 

the northwestern part of the Wind River Basin in Tps. 

5 and 6 N., Rs. 1-3 E. and 1 and 2 W., Wind River 

meridian, contains coal of minable thickness in the 

Mesaverde, Meeteetse, and--possibly--Fort Uriion 

formations. Recent mapping in the Shotgun district, 

one of the four small districts in the field, shows that 

the Meeteetse formation is 1,000 to 1,330 feet thick and 

that the overlying Lance, which in this area contains no 

coal, is 200 to 1,140 feet thick. The mapping also shows 

that much of the coal in the district, which was formerly 

thought_ to be in the Fort Union, is actually in the 

Meeteetse. 

The four districts in the field are separated by 

areas in which younger formations conceal the coalbearing rocks or in which coal, though exposed, is too. 

thin to mine. The coal beds in all parts of the field are 

lenticular and in few places extend at minable thickness 

for more than a small part of a mile. The thickest bed 

is in the Meeteetse formation, in the district alonq 

Muddy Creek iii T. 6 N., R. 1 E., where at one place 

it contains 17. 4 feet of coal and a 1. 3-foot parting near 

the top. About 1,000 feet from this exposure the coal 

is 9. 4 feet thick, but between the two localities it thins 

20 

to a minimum of 6 inches. The district extends in a 

general northerly direction for about 5 miles near 

Muddy Creek and contains at least two other lenticular 

coal beds of minable thickness in the Meeteetse formation. The beds dip about 23° eastward. 

In the western part of the field, along the limbs of 

a northwest-trending syncline in the south half of T. 6 

N., R. 2 W., the Mesaverde formation contains several 

coal beds that are lenticular·but, atsome places, fairly 

thick. The thickest bed, which is exposed along the 

northeast side of the syncline, has a maximum thicknesrof 8. 8 feet and contains rio partings. The bed is of minable thickness for about three-quarters of a mile along 

tlie outcrop, though for most of that distance it is less 

than 3 feet thick. The dip ranges from 70° SW; to 

vertical. 

In other places in ·the Muddy Creek field, coal beds 

locally reach a minable thickness but are thinner than 

those in the districts just discussed. In 1949, one mine 

in sec. 29, T. 5 N., R. 1 E., was operating seasonally 

in a coal bed 5. 5 feet thick. 

An analysis, on the as-received basis, of coal from 

the Meeteetse formation in the Muddy Creek field shows 

8. 1 percent ash, 0. 4 percent sulfur, and 9,920 B. t. u. 

Pilot Butte field.--The Pilot Butte field (fig. 3, 

loc. ~s south-on:he Muddy Creek field in sec. 13, 

T. 3 N., R. 1 W., Wind River meridian. The coal· is 

contained in a single bed in a sandstone unit near the 

top of the Cody shale or near the base of the Mesaverde 

formation. The bed, known as the Kinnear coal, . reaches 

a maximum thickness of 2. 8 feet of clean coal. · 

Hudson field.--The Hudson field (fig. 3, loc. 40), 

near tnerOWiiOf"Hudson in the southwestern part of the 

basin, covers parts of four townships: Tps. 33 and 34 

N., R. 98 W., and Tps. 1 and 2 S., R. 2 E., Wind 

River meridian. Three lenticular coal beds of minable 

thickness are present within an interval of about 45 

feet in the Mesaverde formation. The field is limited 

in extent by younger, non-coal-bearing rocks, which 

conceal the coal beds at many places. The thickest 

measured section in the field is about 4 miles north of 

the town of Hudson, in the Poposia No. 1 mine, where 

14. 0 feet of clean coal is exposed. Other measured 

sections in tl;te field generally show less than 5 feet of 

clean.coal. Only one bed in the field appears to be 

persistent; it extends at minable thickness for more 

than 3t miles of outcrop. The rocks generally dip 

about 13° NE. 

The coal in the Hudson field is of sub-bituminous 

Brank. An analysis, on the as-received basis, of a 

sample from the C. A. McKinley mine shows 7. 6 percent ash, 1. 2 percent sulfur, and 9,420 B. t. u. 

Alkali Butte field.--The Alkalf Butte field (fig. 3, 

loc. 4Ij'i'S. east o11lie Hudson field and extends for about 

9 miles along the southern border of the basin in T. 2 

S., R. 6 E., and T~ 34 N., Rs. 94 and 95. W., Wind 

River meridian. In this field two rather persistent 

coal beds are exposed in the Mesaverde formation on 

the northeast and west sides of a northwest-trending 

anticline; they are, however, concealed locally on those 

sides, and concealed completely on the south and east 

sides, by younger, non-coal-bearing rocks. The lower 

bed, which is exposed mostly in the eastern part of the 
field, consists of a minimum of 12 feet of coal and 1 

foot of partirig. The outcrop of this bed crosses the 

southern part ofT. 34 N., R. 94 W., in a westerly direction, and, with the exception of about a mile, the 

coal is of zr..inable thicknE'SS across the township. The 

upper bed, which is exposed only in the northern and 

western parts of the field, reaches a maximum thick- · · 

ness of 16. 8 feet of clean coal and for more than 2 miles 

along the outcrop is at least 10 feet thick. 

The rocks in the Alkali Butte field dip 12° to 54° 

away from the crest of the anticline, but at most localities the dip is less than sao. The coal in the field is of 

sub-bituminous rank; an analysis, on the as-received 

basis, of a slightly weathered sample from the Si<Jnor 

mine shows 5.1 percent ash, 0. 61 percent sulfur, and 

8, 760 B. t. u. 

Coal in Tps. 33 and 34 N., R. 96 W.--Logs from 

several dr'"'TII1iOleSintlie-r3eaverCree'K oil field, Tps. 

33 and 34 N., R. 96 W., show coal in mu.Ch greater 

quantity than nearby surface exposures indicate. One 

hole shows a total of 237 feet of coal in 26 beds ranging 

from 2. 5 to p1ore than 10 feet in thickness, all at depths 

less than 3,000 feet; other holes show smaller but considerable numbers of minable beds. The logs of these 

holes indicate that at least parts of the Wind River Basin 

contain much coal under relatively deep cover. The 

cores show that dips are nearly flat at most places but 

reach a maximum of 28° on the east flank of the Beaver 

Creek oil field. No analyses are available, but the rank 

of the cdal is probably the same as that of the coal in 

the Alkali Butte lnd Hudson fields. It is possible that · 

some of the material logged as coal in these townships 

is actually carbonaceous shale, but information is sufficiently reliable to permit inferred reserves to be calculated for this area (table 13). 

Powder River field.--'rhe Powder River field (fig. 

3, loc. 42), "81"tfte eastern end. of the Wind River Basin, 

bears the same name but is not to be confused· with the 

Powder River field in the Powder River Basin. It is in 

Natrona County except for one small district, mostly in 

Tps. 34 and 35 N., R. 90 W., that is in Fremont County. 

The Powder River field is a V -shaped area, about 50 · 

miles long, with the point of the "V" at the southeastern 

erld; it includes about one-third of the total area of the 

Wind River Basin. In this field the eastern end of the 

major Wind River syncline is constricted and is identified as the Powder River syncline, which has a minor 

anticline and syncline on its northeastern limb. 

The field contains eight small coal districts, four 

in the southern limb of the syncline and four in the 

northern limb. These districts are separated by areas 

in which no coal of minable thiclmess occurs or in which 

the coal-bearing rocks are concealed. The' districts in 

the southern limb of the syncline, from west to east,. 

are the Muskrat Creek, South Fork, Wallace Creek, · 

and Oil City districts; those in the northern limb, also 

from west to east, are the Waltman, Powder.~ver 

Station, Efell, and Platte River districts. Most of the 

coal is. in the Mesaverde formation, but the Lewis and · 

L.ance unit and the Fort Union formation contain minable 

coal in Ule Mu8krat Creek district. All the coal beds are lenticular. 

The largest district on the southern limb of the. · 

basin, the Muskrat Creek district, extends for about 

9 miles in T. 34 N., Rs. · 89 and 90 w. Th9lo11qest 

21 

continuous <lutcrop in this district, however, is slightly more than a. mile .in length. The district contains 

two coal beds that reach a minable thickness. 

The South Fork di$trict, east of the Muskrat Creek 

district in T. 34 N., R. 88 W':, contains seven coal beds 

that in places· are of minable thickness but are markedly 

lenticular. However, the thickest coal exposed in the 

Powder River field is in the South Fork district, where 

one bed is 9. 8 feet thick and composed of clean coal 

without partinqs. ·About half a mile southeast of this 

locality the bed contains 3. 3 feet of coal without partings. 

Maximum thiclmesses in other districis in the 

southern part of the field ranqe from .4. 6. to 7. 8 feet, 

and a few of the beds persist at minable thickness for 

a maximum distance of about 2 miles. The beds dip 

generally between 20° and sao NE. 

The four districts along the northern limb of the 

Powder River syncline extend from T. 37 N., R. 87 W., 

near the villaqe of Arminto, southeast nearly to the 

North Platte River. The maximum thicknesses of seven 

minable beds are exposed in both the Waltman and Platte 

River districts in this part of the Powder River field. 

The Waltman district contains a coal bed that reaches a 

maximUm. thickness of •7. 3 teet of coal without partings 

and crops out for a di$tance of about a mile. Two other 

beds in the district reach .thicknesses greater than 5 

feet. Several coal b$ on the northern side of the field 

are more than 5 feet thick at a few localities but generally ext~nd at minable thickness for less than a mile. 

The coal beds dip steeply toward the central part of the 

syncline, the dips ranqinq from about 50° to overturned. 

An analysis, on the as-received basis, of a sample 

from the Arminto mine in the Waltman district shows 

7. 8 percent ash, l.lpereez¢ sulfur, and 8,610 B.t. u. 

Reserves and production 

As shows in table 13; .the estimated oriqinal reserves of coal in the .Wind River Basin, including measured, indicated, and inferred reserves, total about 875 

·million tons. The total recorded production of the basin 

to January 1, 1950, is about 3. 6 million tons. Subtracting production and mininq losses of about 7 million tons, 

the reserves remaining in the qround on January 1, 1950, 

total about 868 milUon tons, half of which may be regarded as ultimately recoverable. 

As all the significant production from the Wind 

River Basin has been obtained from the Hudson field, 

it is interesting to note that the original reserves of 

this field, . includinq measured, indicated, and inferred 

reserves, total about 69 million tons. Subt·:actinq the 

production and miniDg losses of about 7 million tons, 

the reserves,remaininq in this field on January 1, 1950, 

total about 52 million tona, half of which may be reqarded as recover~le. 

1!!!!!!! .!!!!!! 

General features 

The Hanna field'(fiiJ. 3, loc. 28) is a structurally 

downwarped,area of. about 750 square miles in Tps. 21-

24 N., Rs. 79-86 W., 1r1 the northern half of Carbon . County, south-eentral Wyom.inq. The field is bounded 

on the north by the . ~ley, · Freezeout, Seminoe, and 
Ferris Mountains; on the west by the Rawlins Hills; and on the south by the Medicine Bow Mountains. To the 

east, it merges with the Laramie Basin. The field is 

drained by the Medicine Bow River and several intermittent streams, all tributaries of the North Platte 

River, which flows in a northerly direction near the 

western edge of the field. The Union Pacific Railroad 

crosses the field from east to west, passing through 

the town of Hanna. 

The topography in the central part of the field is of 

the plains type but is more rugged around the edges. 

Along the southern side low ridges are prominent, and 

in T. 21 N., R. 81 W., and·northward a prominent ridge, 

called the Saddleback Hills or Simpson Ridge, extends 

north-northeast along an anticlinal axis. This ridge 

separates the ·largest coal-bearing area, the Hanna Basin 

on the west, from the smaller Qarbon Basin to the east. 

Another small basin, the Walcott Basin, is southwest of 

the Hanna Basin. 

Coal-bearing formations 

The Me~averde formation of Upper Cretaceous aqe, 

which crops out at intervals around the edges of the field, 

is the oldest coal-bearing formation. Above the Mesaverde are the non-coal-bearing Lewis shale and the coalbearing Medicine Bow, Ferris, and Hanna formations. 

The Lewis shale and the Medicine Bow formation are of 

Upper Cretaceous age. The basal part of the Ferris 

formation also is considered to be of Upper Cretaceous 

age, and the main part of the formation is considered 

to be of Paleocene aqe. The Hanna'formation is of Eocene age. A total of 130 coal beds have been mapped in 

the four coal-bearing formations. Of this total a third 

or more may lie at the same stratigraphic position as 

other numbered beds. The coal is of workable thickness 

at numerous places in the Hanna field, but as a rule the 

beds are not persistent for lonq distances. The highestrank coal, high volatile C bituminous, occurs in the 

Mes~verde formation; the thickest and most extensive 

beds are of sub-bltuminou.S rank and occur in the Ferris 

and Hanna formations. Throughout the field many of the 

coal lenses cannot be traced because of poor exposures. 

In the following paragraphs the coal in each formation is discussed separately. 

Coal in the Mesaverde formation.--The Mesaverde 

formation:-WErch is 2,200 to 2,700 feet thick, crops out 

generally as ridges in the border areas of the· field, 

where at places it also constitUtes the central part of 

local anticlines. The formation consists of three mem- bers, each composed largely of sandstone and shale, 

but the middle member differs from the others in its 

fresh- and brackish-water invertebrate fossils, in its 

domin~tly brown color, and in the larqe content of 

carbonaceous material. The coal beds, which occur in 

the middle member of the formation and, locally, in the 

upper member, are thin, irregular, and generally impure. At least four of the coal beds are more than 3 

feet thick. The maximum thickness of any bed is about 

8 feet, as observed in T. 24 N., R. 84 W. The coal 

generally is of high volatile C bituminous rank. An 

analysis, on the as-received basis, of coal from the 

Mesaverde formation in the Wissler mine shows 7: 8 

percent as~!, 1. 1 percent sulfur,. and 10,290 B. t. u. 

Coal in the Medicine Bow formation. --The Medicine Bow rormation consists ol 4,060 to 6,200 feet of 

22 

shale and sandstone and numerous beds of coal that 

occur in a brown sandstone unit. in the lower 1,500 feet 

of the formation. The unit contains at least 15 coal 

lJeds that are more than 3 feet thick and a.ttaJ.n a maximum thickness of about ll feet. The beds are irregular in extent; at some places the unit contains no coal, 

whereas at others it has more than 12 beds. The coal 

is of sub-bituminous A rank. The averaqe of two analyses, on the as-received b9.$is, of coal from the Medicine Bow formation shows 3. 8 percent ash, 0. 8 percent 

sulfur, and 11,050 B. t. u. 

Coal in the Ferris formation.--The Ferris formation IS"i.'bout""B';O~ th1ck and is composed of shale; 

sandstone, a basal conglomerate, and numerous thick 

beds of coal, which occur in the upper 5,400 feet of the 

formation above the basal conglomerate. A minimum 

of 20 beds in the formation are more than 3 feet thick, 

and as a rule the beds are thicker. and more extensive 

than those in the Mesaverde and Medicine .Bow. formations. Several beds are more than 5 feet thiek, and 

the maximum thickness observed is 23.. 4 feet of clean 

coal, which is separated by 10 feet of shale near the 

middle and by 2 feet of shale near the top, in T. 22 N., 

R. 83 W. The thickest bed extends at minable thickness for about 7 miles along the outcrop, and, although 

it is generally separated into benches, at least one bench 

contains more than 5 feet of clean co.al at most places. 

Others of the more than 18 beds of minable thickness 

exposed in this township are thinner and less persistent 

and contain numerous partings. The beds in the general. area dip lilbout 10° to 25° NE .. The -coal is of subbituminous rank. 

Coal in the Hanna formation.-- The Hanna formation,\VIiicn uncoriformahiy overUes the older rocks, 

consists of about 7,000 feet of alt~rnating conglomerate, 

sandstone, and shale and contains numerous beds of 

coal. At least 30 coal beds reach thicknesses greater 

than 3 feet, and the maximum thickness of clean coal 

is more than 30 feet. The thickest bed in the field is 

the Hanna No. 2, which crops out in the western part 

ofT. 22 N., R. 81 W. At one exposure north of the 

town of Hanna, this bed contains more than 30 feet of 

coal without partings but north of the town its outcrop 

is generally burned. Southwest of the town the Hanna 

No. 2 bed is about 35 feet thick, includinq several shale 

partings each about 1 foot thick; but 2 miles to the south 

the coal reportedly thins to 12 feet. It dips about 12° 

to 20° eastward. The coal is of sub-bituminous A rank; 

an analysis, on the as-received basis, of coal from the 

Hanna No. 2 bed in the Hanna No. 4 mine shows 5. 5 

percent ash, 0. 5 percent sultur, and 11,200 B. t. u.· 

Reserves and production 

As shown in table 13, the total estimated original 

reserves in the Hanna field are 3,917 million tons, including 3,466 million tons of measured and indicated 

sub-bituminous coal reserves, 378 million tons of inferred sub-bituminous coal reserves, and 73 million 

tons of indicated and inferred bituminous coal reserves. 

The total recorded. pr¢uction from the Hanna field 

is the fouth-larqest in Wyominq, being exceeded only 

by production from the Rock Springs, Kemmerer, and 

Sheridan fields. The total production of the Hanna field 

through 1949 was more than 34 million tons, . most of 

which has been obtained from the Hanna Basin and from 

the Hanna No. 2 bed. Assuming that losses in mining 
have been equal to production, the original reserves in 

the field have been depleted by 68 million tons to January 1, 1950. 

Rock Creek field ------- The Rock Creek field (fig. 3, loc. 27) covers about 

450 square miles in the north-central part of the Laramie Basin, largely in Albany County but partly in Carbon County. The Union Pacific·Railroad crosses the northeast~rn part of the field. The surface of the field 

is a gently rolling plain, which is covered with qravel 

over large areas. As a result,· outcrops of the coalbearing rocks are few in number and small in extent. 

The thickest and best-exposed coal beds are in the 

northwestern part of the field in T. 20 N., R. 76 W., 

and T. 19 N., R. 77 W., in the Mesaverde formation 

and in the younger Hanna formation. In these townships the dips Of the Strata range from abOUt 8° tO 20° I 

generally to the southeast. 

The Me;saverde formation, of Upper Cretaceous 

aqe, consists of 1,250 feet of sandstone, sandy shale, 

carbonaceous shale, and coal. The Pine Ridge sandstone at the top of the Mesaverde is about 80 feet thick 

in T. 20 N., R. 76 W., and contains at least four coal 

beds of workable thickness. The thickest coal bed exposed in the Pine Ridge sandstone member is in this 

township, where the coal attains a maximum thickness 

of 8 feet. The beds occur at several horizons in the 

sandstone, but they vary in thickness and probably are 

not continuous for long distances. At the few mines 

the thickness ranges from about 4 to 7 feet. 

The Hanna formation of Eocene aqe, which unconformably overlies older formations, consists of sandy 

shale, sandstone, carbonaceous shale, conglomerate, 

and coal. One coal bed of minable thickness crops out 

in places in the western part ofT. 19 N., R. 77 W., 

·where it reaches a maximum thickness of 9. 5 feet, exclusive of several partings that total 2.2 feet. The coal 

of the field is of sub-bituminous B rank. The average 

of three analyses, on the as-received basis, of coal in 

the northern part of the field shows 12. 1 ~rcent ash, 

0. g percent sulfur, and a heat value of 8, 843 B. t. u. 

Coal is exposed locally in townships south and west 

of those discussed, but generally the qravel cover prevents determination of the thickness and extent of the 

beds. 

Mining in the Rock Creek field has been confined 

to small local operations, and production has been 

small. 

Green~~ 

General features 

The Green River reqion, which covers aboUt 

15,400 square miles in southwestern Wyominq, is a 

rouqhly triangular area that includes practically all of 

Sweetwater County and extends east into Carbon County, 

north into Fremont and Sublette Counties, and west into 

Lincoln and Uinta Counties. The southern boundary, 

.which follows the Colorado State line, is about 185 miles 

lonq; the western side is about 175 miles lonq. The reqion is bounded on the north and northeast by the Gros 

Ventre and Wind River Ranqes and the G:ranite Mountains; on the east by the Rawlins Hills and the Sierre 

23 

Madre Mountains; and on the west by a series of major 

thrust faults alonq which older rocks have moved eastward across 1Jle coal-bearing strata at many places. 

The western part of the reqion is drained by the 

Green River, the southeastern part by the Little Snake 

River. The Union Pacific Railroad crosses· the reqion 

in a general westerly direction about 35 to 55 miles 

north of the Colorado State line, passing throuqh the 

towns of Rock Sprinqs and Rawlins. 

The Green. River region is divided by the Rock 

Sprinqs anticline into two major structural units, the 

Green River Basin to the west and the Qreat Divide 

Basin to the east. The Great Divide Basin in turn contains two subordinate basins: the Red Desert Basin to 

the north and the Washakie Basin to the south. 

The coal-bearing rocks in the Green River reqion 

are largely concealed by younqer rocks, and very little 

is known about the total coal reserves. The.coal-bearinq 

rocks are exposed, however, at points around the margins of the region and in· the Rock Sprinqs anticline 1n 

the center of the reqion, which is the most important 

coal-producing area. For purposes of discussion, 

therefore, the reqion is divided into several fields, as 

follows: the Kindt Basin field, which lies east of the 

main part of the reqion; the Great Divide Basin field in 

the vicinity of the Red Desert; the Little Snake River 

field east of the Washakie Basin; the Rock Sprinqs field 

in the center of the reqion; and the western parf cf the 

reqion, including the Labarqe Ridqe field. 

The coal beds in the Green River reqion occur in 

strata that range in aqe from Upper Cretaceous· tO 

Eocene, and the coal ranqes in rank from sub-bituminous C to high volatile C bituminous, the hiqher rank 

in general beinq present in the older rocks. 

Description of fields 

The coal fields in the Green River reqion are 

discussed below, beqinning with those .on the eastern s~. . . 

Kindt Basin field.--The Kindt Basin field (fig. 3, 

loc. ~ wnrcn may be described as an ~ward ex- tension of the Green River reqion proper, covers about 

200 square miles, mostly in Tps. 19 and 20 N., Rs. 84-

87 W., in west-central Carbon County. The field is 

immediately south of the Union Pacific Railroad and 

southeast of the town of Rawlins. The coal.-bearinq 

Mesaverde formation of Upt>er Cretaceous aqe crops 

out· over most of the field, the liinits of its outcrop determining the northern and southern boundaries. Alonq 

the eastern side of the basin rocks of Tertiary aqe conceal the Mesaverde formation. To the west, the Kindt 

Basin adjoins the Little Snake River field. 

The Mesaverde formation ranqes in thickness from 

about 2, 700 to 3,600 feet and consists of three members 

composed mostly of alternating beds of sandstone and 

shale. The lowest member, about 700 feet thick, contains no coal; the middle and upper members·contain 

coal at irregularly spaced intervals. The coal beds 

are lenticular. and may show at least one shale partinq 

that is variable in thickness. The coal beds, exclusive 

of partinqs, are ·2. 0 to 6. 0 feet thick. The coal is of 

high volatile C bituminous rank. An analysis, on the 

as-received basis, of a sample from the Dillon mine 
shows 8. 4 percent ash, 0. 5 percent sulfur, and 11,010 

B.t.u. 

On the north side of the Kindt Basin field the coal 

beds dip 45° to 75° southward; on the south side the dip 

is about 11 o northward. 

Great Divide Basin field.--The area here called the 

Great Dlvi0el3a"Sin f1elCil'llq: 3, loc. 30) includes about 

1,800 square miles in the northeastern part of the Green 

River region, north of the Union Pacific Railroad, in 

Tps. 21-28 N., Rs. 88-95 W. The field was first described as "the eastern part of the Great Divide Basin 

field," a designation that reflects the old rather than the 

presently recognized subdivisions of the Green River 

region. 

The field is largely in Sweetwater County but extends northward into Fremont County and eastward into 

Carbon County. It is bounded on the north by the Granite 

Mountains, on the east by the Rawlins Hills, and on the 

south by the, Union Pacific Railroad, which follows a 

minor west-trending anticlinal axis. The structure of 

the Great Divide Basin field is a broad downwarp overlain by flat-lying younger rocks. The oldest rocks in 

the basin crop out along the eastern edqe of the downwarp; in this area the beds dip generally 25° to 80° 

westward, and in at least one place are overturned. 

The Mesaverde formation, two younger units of 

approximate Lance and Fort Union age, respectively, 

and the Wasatch formation contain coal beds of minable 

thickness in the field. The Mesaverde, which crops 

out along the eastern edge of the field, consists of about 

2, 000 feet of strata at the northern end of its outcrop 

and about 4,600 feet at the southern end. It is composed 

of alternating beds of sandstone and shale and is divided 

into three members, the upper two of which are coal 

bearing. The coal in the;:;e two members occurs in three 

zones: a lower zone at the base of the middle member, a middle zone at the base of the upper member, and an 

upper zone near the top of the upper member. 

The lower coal zone contains four to six irregular 

beds of impure coal that are poorly exposed but apparently are not of minable thickness. The coal beds in the 

middle zone are generally thin in the few pla.ces where 

they· are exposed, but they are believed to be thicker in 

the southeastern part of the field, where one bee} contains 

8. 2 feet of clean coal and two l-inch partings. The upper 

zone contains a minimum of four thin beds of coal, all 

of poor quality. Analyses of the coal in the Mesaverde 

are not available, but it is probably similar in rank to 

the high volatile C bituminous coal of nearby fields. 

A sequence of shale, sandstone, and coal of probable 

Lance age {the Medicine Bow formation pf the Hanna field) 

crops out in a north-trending belt in the eastern part of 

· the Great Divide Basin field. It is separated from the 

Mesaverde ~ormation by .the Lewis shale, which is 2,000 

feet thick in this area. The coal beds occur throughout 

the sequence and are especially numerous. in the southern 

part of the field. The averaqe thickness of 39 measured 

sections, located in all but one of the townships where 

the .sequence is exposed, is e. 2 feet of clean coal. The 

maximUm. thickness of any bed is 12 feet, and the· minimum is 10 inches. Some of the thicker beds are sepa~ 

rated into benches by thick shale partings, but most 

sections show at least one bed of minable thickness free 

from partings. In T~ 25 N., R. 89 W., a measured 

24 

section of about 1,800 feet of the sequence shows six 

coal beds more than 2. 5 feet thick, the thickest being 

6 feet. An analysis, on the as-received basis, of 

weathered coal from the formation in the northeastern 

part of the field shows 4.1 percent ash, 0. 3 percent 

sulfur, and 9,023 B. t. u. 

Rocks considered to be of Fort Union age (the Ferris formation of the Hanna field) unconformably over lie 

the formation of probable Lance age in the eastern part 

of the field and crop out in a belt that trends generally 

north. This sequence consists of alternating beds of 

sandstone, shale, conglomerate, and coal. The lower 

·aoo to 1,800 feet is composed of shale and conglomeratic 

sandstone and contains no coal:. Above this lower barren 

unit coal occurs in two members that are separated by a 

non-coal-bearing member of soft shale and sandstone. 

In the southeastern part of the field both coal-bearing 

memb~rs contain workable beds. The lower member 

contains no coal in the northern part of the field, where 

it is the only part of the formation exposed. The average 

thickness of eight measured sections in both members, 

mostly in the southeastern part of the field, is 4. 6 feet 

of clean coal. The maximum thickness is 20. 7 ·feet. 

The Wasatch formation of Eocene age (the Hanna 

formation of the Hanna field), which is flat lying upon 

older c:Q.pping strata, crops out over a large part of 

the Great Divide Basin field and includes about 900 to 

1, 800 feet of sandstone, shale, conglomerate, and coal. 

The formation includes a basal conglomerate, which is 

thin in the southern part of the field, where it is comprised of granite pebbles, but thickens northward and 

becomes coarse. The coal beds are in a zone tbJ:I,t overlies this basal member and are confined to the southern 

and western parts of the field. The average thiclmess 

of 12 measured sections is 5.1 feet of clean coal, the 

maximum being 16. 1 feet. At many places along the 

· outcrop the coal is burned. · 

Little Snake River field.--The Little SnakecRiver 

field~ s;-To'C.-sl'r, WlUc1i" is south of the Great Divide 

Basin field, includes more than 1, 500 square miles in 

parts of Tps. 12-20 N., Rs. 87-95 W. The field is in 

the southeastern part of the Green River region, southeast of the Red Desert, east of the Washakie Basin, and 

west of the Sierra ~e. It extends from the Colorado 

State line on the south to the Union Pacific Railroad on 

the. north. The strata generally dip westward toward 

the central part of the Green River region at angles 

ranging from nearly horizontal to as much as 35°. 

The Mesaverde formation, of Upper Cretace6us 

age, and two overlying units of Upper Cretaceous and 

Tertiary age contain workable coal beds, many of 

which, especially in the two higher units, are burned 

at the outcrops. The Mesaverde formation consists of 

about 2,000 feet of strata, largely sandstone and shale. 

It crops out in a general north-trending band along the 

eastern edge of the field and is divided into three members, of which the middle and upper contain coal of 

minable thickness. At the southern end of the field 

several sections, probably in the middle member, show 

workable coal beds that contain 2. 8 to 12.2 feet of coal 

with no partings. The coal beds in the middle member 

decrease in number and become thinner toward the north, 

where the coal is ·of poor quaiity. 

The upper member contains several coal beds in 

its area of outcrop in the LitUe Snake River field. In 
a measured section in Tps. 17 and 18 N., R. 90 W., the 

member contains four beds 5 to 11 feet thick. In the 

southern. part of the field three measured sect:ions each 

show more ·than 5 feet of clean coal. 

The exposures of coal in the Mesaverde formation are not continuous, and the beds are believed to be lenticular; however, where one bed thins another is likely 

to thicken, and as-a result the total thickness of the coal 

may remain fairly consistent over considerable areas. 

The coal is of high volatile C bituminous rank. The 

.available analyses of coal in the Mesaverde from this 

field are of weathered samples; they average, on the 

as-received basis, 7. 0 percent ash, 0. 9 percent. sulfur, 

and 10, 492 B. t. u. · 

Rocks of probable Lance or Medicine Bow age, 

separated from the Mesaverde formation by about 

1,600 feet of rocks comprising the Lewis shalE~, ~elude 

about 3,500 feet of sandstone and shale al'ld sm.all amounts 

of coal. The coal beds are poorly exposed; they are cov- ered in many places by wash and generally oc<:ur between 

beds of shale which weathers rapidly. One mE~asured 

section of a coal bed, which is probably in this sequence, 

in T. 12 N., R. 90 W., in the southern part of the field, 

shows 6. 5 feet of clean coal. A bed about 5 miles to the 

north contains only 2 feet of coal; but two beds measured 

still farther north show a minimum of 5 feet a:nd one 

shows 8. 2 feet. At least some of the coal in the formation is of sub-bituminous Brank. The only available 

analysis, which is of a sample from the northE~astern 

part of the field, shows on the as-received basis 3~ a 

percent ash, 0. 3 percent sulfur, and 9, 722 E. t. u. 

A higher sequence of strata in the Little Snake 

River field "that is equivalent to the Ferris and/or 

Hanna formations" 4/ includes a maximum of about 

8, 500 feet of sandstone, shale, clay, and som'e con- glomerate, divided into three members, the l()wer and 

upper of which are coal bearing. Sandstone, f:lome of 

which is conglomeratic, is abundant in the lower and 

upper members; conglomeratic sandstone and) locally, 

conglomerate occur at the base of the formation. The 

non-coal-bearing middle member generally consists of 

clay shale, sandy clay, and local ~eds of sandstone. 

The sequence, which probably contains more <:oal than 

any other in the field, crops out extensively in. the northern part of the field, but because of overlap by younger 

rocks the exposed part decreases southward to Jl narrow band. 

The lower member of the sequence, in a section 

measured in Tps. 17 and 18 N., R. 91 w., includes 

within an interval of about 160 feet a minimum of three 

workable coal beds averaging 8. 0, 5 .. 0, and 3. ·6 feet, 

respectively, in thickness. South of this locality, some 

coal be4s in the lower member are more than 6 feet 

thick and are possibly continuous for long distances. 

In the upper member, one zone in a section measured 

in T. 18 N.,_ R. 92 W., contains within an interval of 

about 60 feet several layers of shaly coal but ()nly about 

3 feet of "good" coal. This member is largely concealed in the western part of the field by younger, non- coal-bearing rocks. 

The coal in the sequence ranges in rank from subbituminous C to A. The averaqe of five analyses, on 

"Nace, R. L., Summary of the late. Czetaceous and early Tertiary stratiqraphy 

of Wyomjnq: Wyomtno Geol. Survey Bull. 26, p. 11, 1936. 

26 

the as-received. basis, of weathered samples from the 

lower member shows 8. 3 percent ash, 0. 9 percent 

sulfur, and 8, 789 B. t. u. 

Rock ?prJ?t field.--The Rock Sprinqs field (fig. 

3, 1~, eetwater County, cove~s about 3,000 

square miles in the central part of the Green River 

region. Most of the coal in the field is exposed around 

Baxter Basin, the eroded central part of the Rock 

Springs anticline. In this basin coal-bearing formations have been mapped in an area that extends northward from T. 15 N. to a large east-west fault exposed 

in the southern tier of sections in T. 22 N~, and westward from R. 102 W. toR. 105 W. The major-axis 

of the anticline trends north; the beds on the west limb 

dip 10° to 20° w., and those on the east limb 5° to !0° 

E. Several minor folds, as well as many normal faults 

. that vary in size but generally trend at riqht arigles to 

the axis of the main structure, occur in the anticline. 

The coal-bearing rocks exposed in the Rock Springs 

field include the Mesaverde group and the Lance, Fort 

Union, and Wasatch formations (fig. 4}. By far the 

most important coal from a commercial standpoint is 

that in the Mesaverde group, which is composed of 

3,100 to 4,550 feet of sandstone, shale, clay, and coal 

and is divided, in ascending order, into the Blair, Rock 

Springs, Ericson, and Almond formations. The Blair - formation contains no coal, but the Rock Springs formation; which crops out around the edges of Baxter Basin 

contains at least 12 coal beds ranging from 2 to 13. 8 

feet in thickness and many o~er beds less than 2 feet 

thick. The beds are fairiy persistent, ·and the average 

thickness of 40 sections measured along the west-and 

north sides of Baxter Basin is 6. 0 feet of clean coal, 

the maximum being 13. 5 feet. Some of the coal beds 

contain one or more partings, usually of shale. Schultz 

found that in the Rock Spriilgs formation the total thick- ness of coal beds more than 2 feet thick in the vicinity 

of the village of Superior, in T. 21 N., R. 102 W., "is more than 80 feet, arid in the vicinity of Rock Springs 

it is more than 90 feet." 5/ South of Superior, however, 

the coal beds become thliiner, and some of them disappear. 

The minable coal beds in the Rock Springs formation are identified by -numbers, which, however, are not 

invariably in sequence. For example, at the west end 

of the field the mirui.bie beds, from the top down, are 

beds 5, 1, 7t, 7, 9, and 15. The numbers, whi~h go as high as 21, are in order only from_ 9 down. Coal 

from these beds generally withstands weathering and 

is classed as high volatile C bituminous. The average 

of five analyses from the mines at Rock Springs shows 

6. 4 percent ash, 0. 8 percent sulfur, and 11, 320 B. t. u. The sulfur content varies somewhat from bed to bed; 

six analyses from bed 3 show an average of 1. 4 percent, 

nirie analyses from bed 01 show 0. 9 percent, and six 

analyses from bed 11 show 0. 7 percent. The other beds 

are represented only by widely spaced analyses. 

The Rock Sprinqs formation is overlain by the noncoal-bearing Ericson sandstone, which is 800 to 1,000 

feet thick. The upper formation of the Mesaverde group, 

the Almond, contains coal in its lower parts. The Almond formation is exposed along the eastern side of 

Baxter Basin; alo~g the· western side all but the lower 

5

Schultz, A. R., The southern part of the Rock Springs coal field, . 

Sweetwater County, Wyo.: U.S. Geoloqical Survey Bull. 381, 

p. 228, 1910. 
part is covered, and to the southwest the entire unit is 

concealed by younger rocks. Schultz reported that the 

total thickness of coal beds more than 2 feet thick in 

this formation is "from 15 to 30 feet. 11 6/ The average 

thickness of 40 sections, measured in most of the townships where the formation is exposed, is 4. 9 feet of 

clean coal, the maximum being 7. 9 feet. Many of the 

beds contain only thin or inconspicuous partings, but 

one bed consists of two workable benehes separated by 

30 feet of shale. Coal in the Almond formation ranges 

in rank from sub-bituminous C to B. An analysis, on 

the as-received basis, shows 3. 5 percent ash, 0. 6 percent sulfur, and 10,114 B. t. u. 

The basal part of the Lance formation is exposed 

in the northern two-thirds of the eastern side of the 

Baxter Basin and is separated from the Mesaverde 

group by the Lewis shale, which is about 750 feet thick. 

The upper part is concealed by the overlapping Wasatch 

formation. The visible part of the Lance formation, 

which is known locally as th,e Black Buttes coal group, 

includes 1,500 feet ofsandstone, clay, and coal. The 

basal part of this sequence is massive sandstone, at 

places mone than 100 feet thick, which apparently contains no coar. In the upper part of the sequence 24 sec-. 

tions, which have been measured in three townships in 

the vicinity of the Black Buttes, in T. 18N., R. 100 W., 

show an average thickness of 6. 5 feet of clean coal. 

Several of the coal beds contain no partings; others have 

one to three thin partings. Two beds are separated into 

benches by more than 25 feet of sandstone and shale. 

The thickest coal is 9. 2 feet, separated by two shale 

partings that total about 5 inches. 

The coal in the Lance formation is of sub-bituminous 

B rank. An analysis on the as-received basis shows 3. 7 

percent ash, 0. 4 percent sulfur, and 9,910 B. t. u. 

On the east side of the Rock Springs uplift rocks of 

Fort Union age, locally known as the Black Rock coal 

group (formerly mapped as Wasatch), are exposed. Older maps show this group on both the east and west sides 

of the uplift, but recent work has thrown doubt on the 

correlation. It is also possible that rocks on the west 

side now mapped as the lower part of the Wasatch may 

actually be of Fort Union age, but da_.ta are insufficient 

to prove this at the present time. 7/ The rocks of Fort 

Union age unconformably overlie older rocks and consist of sandstone, shale, conglomerate, and many beds 

of coal. At the base is a conglomerate, which· is about 

4 feet thick near Baxter Basin and increases in thickness 

northward. Above the conglomerate is the coal-bearing 

sequence of the Black Rock coal group. In the lower half 

of this sequence some beds attain a thickness of 26 feet, 

and the average of 42 sections, which represent expo- sures of the thicker beds in townships nearest Baxter 

Basin, is 6. 0 feet of clean coal. Half the sections show 

partirigs ranging in thickness from 1 inch to 2 feet and 

generally consisting of bone or shale. Part of the coal 

is burned along the outcrop. 

The Wasatch formation extends eastward from the 

Rock Springs field to the eastern edge of the Great Divide 

Basin field. It crops out in several places southeast of 

the Rock Springs area and contains several beds of coal, one of which has been mined in T. 12 N., R. 101 W. The 

coal in the Wasatch formation is generally ranked as 

6

0p. cit., p. 230. 

7

Brown, R. W., personal communication. 

26 

sub-bituminous A. Ananalysis, on.the as-received 

basis, of an outcrop sample shows 8. 5 percent ash, 

0.·8 .percent sulfur, and 10,460 B. t. u. 

A relatively small·triangular area of about 150 

square miles north of the fault that is used as the northern boundary of the Rock Springs field proper and extends northward into the northern part of T. 23 N. , R. 

104 W., contains coal of the Rock Springs and-Almond 

formations at the outcrops, but sand dunes, .which cover 

much of the area, have made mapping of individual coal 

beds almost impossible. Reliable drill-hole logs, however, show that in the Rock Springs coal group. as many as 18 beds, with a total thickness of more than 50 feet, 

·underlie this area at depths of less than 3, 000 feet. 

Available data indicate that these beds are fairly persistent, but, because of the wide spacing of points of 

information, the estimated reserves in this area have 

been classed as inferred. 

Western part of the~ River re<Jifn..--West of 

the Rock springs antlciliie, m the Green lver Basin, 

the coal-bearing rocks are covered by younger rocks 

except for a few scattered outcrops along the western 

edge of the basin. The formation na:rnes used in this 

area differ from those used in the eastern part of the 

region, the nomenclature being that of the.Hams Fork 

region to the west (fig. 4). - · 

The only named field in the region is the. Labarge 

Ridge field (fig. 3, loc. 33). A small area in the Fall 

River Basin also contains coal of minable thickness •. 

The Labarge Ridge field is in parts of Tps. 26-28 N., 

Rs. 113 and 114 W., in Lincoln and Sublette Counties. 

It is bounded on the west by a major thrust fault; to 

the east, non-coal-bearing Tertiary rocks overlie the 

coal-bearing rocks unconformably and restrict the area 

of coal occurrence to two small areas that cover a total of less than 25 square miles. The coal is probably 

in the Adaville formation of Upper Cretaceous age, 

which is about 2, 800 feet thick and is composed of clay, 

shale, sandstone, and numerous beds of coal that occur throughout the formation. At several places seven to 

ten coal beds 1 to 5 feet thick crop out. The average 

thickness of 12 sections, measured in various parts of 

the field, is 4. 7 feet, and the maximum is 8. 3 feet. A 

partly concealed anticline trends northwest through the 

field and is the cause of dips that range from 20° to 

50°. The coal is of sub-bituminous Brank. An analysis, on the as-received basis, shows 3. 0 percent ash, 

1. g percent sulfur, and 9, 640 B. t. u. 

The Fall River Basin is in the extreme northwestern corner of the Green River region, in Tps. 36-39 

N., Rs. 113 and 114 W., Sublette County. The coal 

crops out in the Evanston formation of Paleocene age. 

This formation, which overlies older rocks unconformably, consists of about 9,500 feet of shale, clay, and 

sandstone, and several coal beds. The coal in general 

is poorly exposed; but a 3. 8-foot bed in T. 39 N., R. 

114 W., has been mined. The coal ranges from subbituminous B to A in rank. 

~eserves and production 

The total estimated original reserves in the Green 

River region are 15,956 million tons, including 9,005 

million tons of bituminous coal arid· 6,051 million tons 
of sub-bituminous coal. (See table 13.) Because the 

cqal-bearing rocks in large areas in the Green River 

reqion are concealed by younger rocks, estimates of 

reserves could not be prepared for much of the region, 

and the totals reported are incomplete. They are, however, a fair statement of the. reserves that can be determined from a ·consideration of the currently available 

information. Most of the reserves reported for the region, therefore, are in the Rock Springs field, where 

the coal-bearing rocks are best exposed and where about 

half the mining in Wyoming is carried on. In 1949, for 

example, the field supplied about 54 percent of the . total 

State production. 

The total estimated original coal reserves in the 

Rock Springs field are 12,726 million tons, including 

9,878.million tons of bituminous coal and 2,848 million 

tons of sub-bituminous coal. The total reported production from Sweetwater County to January 1, 1950, 

nearly all of which was from the Rock Springs field, 

was more than 178 million tons. Assuming that losses 

in mininq equal the coal produced, the original reserves 

in the Rock Sprinqs field have been depleted by 356 

million to~s. The remaininq reserves on January 1, 

1950, are therefore 12,370 million tons, of which half 

can be considered to be ultimately recoverable. 

Hams !.£!:! region 

General features 

The Hams Fork reqion is in the extreme western 

part of Wyoming, west of the Green River reqion. and 

extends southward from southwestern Teton County into Lincoln County, western Sublette County, and the 

western half of Uinta County. Two branches of the 

Union Pacific Railroad cross the region, passinq westward through the towns of Evanston and -Kemmerer, · 

respectively. The northern part of the area is mountainous, with maximum relief of about 5,800 feet. 

Toward the south, in western Uinta and southwestern 

Lincoln Counties, non-coal-bearing Tertiary deposits 

conceal the coal-bearinq rocks at many places. 

The structure of the Hams Fork reqion is some- what complex and includes several northward-trendinq 

major folds and associated faults. As a result of these 

structural features, the coal-bearing rocks are exposed 

in lonq, narrow parallel belts. In the northern part of" 

the field, where this relationship is particularly noticeable, the ranges and fields have been named from west 

to east, as follows: Salt River Ranqe, Greys River coal 

field, Wyominq Ranqe, McDougal coal field. The Greys 

River and McDouqal coal fields are named for the synclines in which they occur; the Salt River and Wyoming 

Ranqes are in two lines of weakness that occur throughout the reqion but. are less prominent on the surface in 

the southern part of the region than in the northern sections. Major faults, thrust from the west, are along 

the eastern sides of both these ranges. One of. the faults, 

the Absaroka, is reported to have in places. a throw of 

more than 20,000 feet. It extends along the eastern 

side of the Salt River Range, which forms the western 

boundary of the ~reys River field, and continues south 

along the western edge of the Kemmerer field. Another 

major fault, the Darby fault, extends along the eastern 

side of the Wyoming Ranqe and forms the western 

boundary of the McDougal field. 

27 

The coal-bearing formations exposed in the Hams 

Fork region are the Bear River, Frontier, and Adaville 

formations of Upper Cretaceous age and the Evanston 

formation of Paleocene age (fig. 4). Non-coal-bearing 

rocks comprise the Aspen shale, between the Bear River and the Frontier, and the Hilliard shale, between the 

Frontier and the Adaville. · 

The lowest coal-bearing formation, the Bear River, 

consists of 500 to. 5,000 feet of shale, shaly sandstone, 

shaly limestone, bituminous shale, and thin beds of 

coal. Several of the beds have been mined, one in particular while the Oregon Short Line Railroad, now a 

part of the Union Pacific, was under construction; much 

of the coal was U:Sed by the early settlers. However, 

the coal beds in the Bear River formation hRve never been mapped. The beds are markedly lenticular and 

contain many partings. The Bear River is separated 

from the next highest coal-bearing formation by the 

Aspen shale, which is 1,200 to 2,000 feet thick. 

The Frontier formation, which overlies the Aspen 

shale, crops out in the Greys River, McDougal, and 

Kemmerer fields _in bands that trend north and generally 

are not more than 2 miles wide. It consists of 2,200 to 

3,800 feet of clay, shale, sandstone, and numerous coal 

beds, which occur throughout the formation. In the 

southern half of the region a zone in the upper part of 

the formation contains a bed of coarse-qrained sandstone in which many large oyster. shells are found; this 

bed is known as the Oy~ter Ridqe sandstone member and 

is a convenient horizon marker. 

The non-coal-bearing- Hilliard shale, whicn weathers 

easily. and generally underlies areas of low relief,· is . 

3,000 to 6,800 feet thick and overlies the Frontier formation. The coal-bearinq Adaville formation is conformable over the Hilliard and consists of 2,800 to more than 

4,000 feet of shale, clay, sandstone, and coal. It is exposed in four basins in the syncline that underlies the 

Kemmerer coal field. The moSt extensive basin is 

about 20 miles long and a maximum of 4 miles wide. 

The Evanston formation crops out only in western 

Uinta County, in parts of Tps. 15, 16, and 17 N., R. 

120 W., near the towns of Almy and Evanston. It unconformably overlies older formations and ranges in thickness from a knife edge to more than 1,600 feet. It is 

composed of coal, shale, and irregular beds of sandstone and conglomeratic sandstone. 

Description of fields 

For convienience .in discussion, the Hams Fork 

region is divided into four fields: the Kemmerer, G:reys 

River, McDouqal, and Evanston fields •. 

Kemmerer field.-.;.The Kemmerer field (fig. 3, loc. , 

35) is under lam by'"i long narrow syncline, known as 

the Lazeart syncline, that extends northward from n~ 

the southern border of Wyoming intq T. 29 N., Rs. 115 

and 116 w. Most prospectinq and·mining in the Hams 

Fork region have been done in this field. Coal is found 

in both the Frontier and Adaville formations. Most of 

the mining has been in th,e Kemmerer coal zone, the 

highest .of three such zones in the Frontier formation. 

The other coal zones are the Spring Valley, near the 

base, and the Willow Creek, near the middle of the 

formation. 
The Spring Valley coal zone includes at its type 

locality in T. 15 N., R. 118 W., at least three beds that 

contain 3. 5 to 8. 3 feet of clean coal. About 25 miles 

north of this locality, in the vicinity of the town of 

Cumberland, several measured sections show coal beds 

1. 3 to 6 .. 0 feet thick. In most of the field the Spring 

Valley zone is concealed by younger deposits. The rank 

of the coal is high volatile B bituminous; the average of 

two analyses of samples shows, on the as-received basis, 12. 2 percent ash, 0. 6 percent sulfur, and 11, 670 

B. t. u. 

The Willow Creek coal zone, which is about 200 

feet below the Oyster Ridge. sandstone member of the 

Frontier formation, has b-een measured in places along 

both flanks of the. Lazeart ~yncline in an area that extends from T. 22 N. northward into T. 25 N. The thickest bed in the zone, known as the Willow Creek coal, 

contains 11. 2 feet of coal, separ.ated by lower and upper 

partings that are 1. 3 and 2. 5 feet thick, respectively, 

and several thin partings1 which total 5 inches in thickness. The rank of the Willow Creek coal ranges from 

high volatile B to A bituminouS. An analysis, on the 

as-receiv,ed basis, of a sample from the No. 5 mine 

shows 5. 5 percent ash, 1. 0 percent sulfur, and 13, 310 

B.t.u. 

The Kemmerer coal zone in the Frontier formation 

is above the Oyster Ridge sandstone member. At the 

Frontier, Diamondville, and Kemmerer mines the main 

Kemmerer coal bed is 5 to 20 feet thick. At these mines 

the dip of the beds ranges from about 12° to 16° W. The 

thickness of the beds in the zone has been measured at 

places in the area between the south border ofT. 15 N., 

R. 118 W., northward into T. 26 N., R. 116 W. Most 

of the sections are of beds more than 3 feet thick, and a 

few are of beds more than 10 feet thick. Information as 

to the extent and exact stratigraphic location of the coal 

beds is not available. The number and thickness of partings are variable; some beds contain no partings. The 

rank of the Kemmerer coal is high volatile B bituminous. 

An analysis, on the as-received basis, of a sample from 

the Kemmerer No. 6 mine shows 6. 9 percent ash, 0. 6 

percent sulfur, and 12, 880 B. t. u. 

The Adaville formation, where exposed near Hodges 

Pass, about 6 miles west of the town of Hams Fork, includes 29 coal beds that individually are 1. 5 to 48 feet 

thick and in the agqreqate are 315 feet thick. One coal 

bed about 6 miles south of this locality, at ths Elkol 

mine, attains a maximum thickness of 89. 6 feet and 

conta~ns one 2-inch clay parting. Coal beds are present 

throughout the outcrop area of the formation but have 

not been mapped. The coal in the Adaville formation is 

of sub-bituminous Brank. 

Greys River field.--The Greys River field (fig. 3, 

loc. "'S'Bf,eastOr £1ie'Sa1t River Ranqe, Lincoln County, 

contains poorly exposed coal beds in the Frontier formation. The two available seetions, which were measured 

near the north and south ends. of the field, respectively, 

show 3 feet of coal. The dip ranges from about 30° to 

80° westward. 

McDouval field.--The McDouqal field (fig. 3, loc. 

37), wh1ch 1s east of the Wyominq Range in Lincoln and 

Teton Counties, includes coal beds believed to belong 

to the Frontier formation, but many of the outcrops are 

concealed. The coal has not been correlated with any 

coal zones to the south, partly because the only good 

28 

horizon marker, the Oyster Ridge sandstone member, 

has not been observed in the area. A few widely spaced 

sections in townships south of the Snake River show coal 

beds that range in thickness from 1. 2 to 20.0 feet, but 

most of the beds are less than 5 feet thick. No specific 

information is available about the area of complex 

structure west of the Snake River, where the Frontier 

formation is probably coal bearing. 

Several mines are operating in the McDougal field 

in three different coal beds, which range from 2. 5 to 

8. 3 feet in thickness. 

Evanston field.--The Evanston.field (fig. 3, loe. 

34) is m the vramty of Almy and Evanston, Uinta County. 

The Evanston formation, of Paleocene age, conta.41s the 

Almy bed, which is the thickest and most extensive coal 

in the field. About 1. 5 miles south of Almy it attains 

its maximum thickness; a section at this point follows: 

Thickness, 

in feet 

Coal .........................•.. 5 

Clay and shale ......•......••.... 12 

Coal ...............•......•...... 7 

Clay .•..................•...•... 3 

Coal and four partings of shale •••.. 26 

Shale and clay ....•.•..•.•......•. 8 

Coal ....................•.•.•... 5 

Within 4 miles along the strike from this exposure, 

· the bed contains less than 2. 5 feet of coal. Near Almy 

the dip of the beds is about 10° to 20° eastward, Coal 

in the Evanston formation ranges in rank from subbituminous B to A. An analysis, on the as-received 

basis, of a sample from the Almy coal bed in the Almy 

No. 5 mine shows 7. 2 percent ash, 0. 2 percent sulfur, 

and 10, 450 B. t. u. 

Reserves and production 

The total oriqinal reserves of coal in the Hams 

Fork region are estimated to be 4,874 million tons, of 

which 748 million tons is classed as measured, 3, 735 

million tons as indicated, and 391 million tons as inferred. .Approximately two-thirds of the reserves is 

bituminous coal, and the remainder is sub-bituminous 

coal. (See table 13.) Some of the bituminous coal in 

the Kemmerer and Willow Creek coal zones ~as coking 

qualities. 

The Hams Fork region is second only to the Rock 

Sprin9s field in total production of coal ih Wyoming. 

The total recorded production from the Hams Fork 

reqion prior to January 1, 1950, is abotit 65 milllon 

tons, or 17 percent of the total reported Wyoming production. During 1949, however, production from the 

Hams Fork region dropped somewhat in proportion to 

other mining districts in Wyoming, and production during that year amounted to only 5 percent of the total 

State production. 

In addition to the total recorded production from 

the region of 65 million tons, an equivalent tonnage 

may be assumed to have been lost in mining. Theremaining reserves of the r99iort on January 1, 1950, are, 

therefore, 4, 744 million tons, of which about half may 

be considered to be ultimately recoverable. 
Jackson Hole field 

The Jackson Hole field, in Teton Connty and part 

of Yellowstone National Park, northwestern Wyoming 

(fig. 3, loc. 1), is Wlderlain by coal beds of minable 

thickness over an area of about 700 square miles. In 

general, the area nnderlain by coal is bounded on the 

west by the Teton Range, on the south by the Gros 

Ventre Range, and on the east and north by overthrusts 

of older rocks that conc~al the coal .. bearing formations. 

The rocks Gontaining minable coal are of Upper 

Cretaceous, Paleocene, and Eocene age and for the 

most part nnderlie the area extending north from T. 41 

N. into Yellowstone National Park and westward from 

R. 111 W. toR. 114 W. The only specific information 

available about the coal in this area is contained in four 

measured stratigraphic sections in T. 41 N., R. 111 w., 

and T. 42 N., Rs. 111 and 112 W., made by the Geological Survey in 1Q48. 

The Bacon Ridge sandstone of Upper Cretaceous 

aqe contains, near its base, 11. 2 feet of coal in several 

closely spaced beds, but only one bed, 3. 5 feet thick, is 

minable. This formation represents the youngest marine unit in the Upper Cretaceous series of northwestern Wyoming and consists of nearly 1,000 feet of sandstone, shale, bentonite, and coal. 

The main coal beds in the southern part of the 

Jackson Hole field are in a coal sequence of Upper 

Cretaceous age that overlies the Bacon Ridge sandstone. It consists of more than 1,000 feet of sandstone, 

shale, and coal. In the four measured sections there 

are 13 coal beds 2. 5 to 5 feet thick and five beds 5 to 

10 feet thick, the thickest being 8. 3 feet. 

In several of the measured stratigraphic sections 

there is a lenticular sandstone and shale sequence, 

usually more than 2,000 feet thick, overlying the coal 

sequence; it contains coal at two localities, in T. 42 N., 

R. 112 W., and T. 42 N., R. 113 W. At the first locality the coal beds are too thin to mine, but in the second, one coal bed is 3. 0 feet thick and one is 2. 4 feet thick. 

Overlying the lenticular sandstone and shale se- quence is a white sandstone sequence, which contains 

coal in only one measured section. This coal is in two 

beds, 1. 5 feet and 1. 0 foot thick, respectively, too thin 

to be minable. The white sandstone sequence in turn is 

overlain by a conglomeratic sandstone sequence that 

contains no coal. 

The Pinyon formation, of Paleocene aqe, contains 

coal in only one of four measured sections. InT. 42 N., 

R. 112 W., the Pinyon is about 430 feet thick, but coal 

is present in the lower 50 feet only. This zone, which 

consists of sandstone, shale, claystone, and coal, con- tains 12. 2 feet of coal but has only three minable beds, 

2. 8, 4. 0, and 2. 5 feet thick, respectively. 

A higher, unnamed sequence of lower Eocene age 

contains, in T. 42 N., R. 110 W., a coal bed 63 feet 

thick, but the coal contains numerous shale partings. 

This sequence underlies only the southeastern part of 

the Jackson Hole field. · 

Coal beds are known to be present in the northern 

extension of the Jackson Hole field in Yellowstone 

National Park, but present information indicates that 

the beds are too thin to be minable. 

2Q 

The strata do not dip more than 45° in any .meas- ured section. Analyses of the coal are not available; 

therefore, the rank has not been determined, although 

the coal is assumed on the basis of its appearance and 

weathering properties to be sub-bituminous. An estimate of the coal reserves in the fi-eld, based on the few 

measured stratigraphic sections and reconnaissance 

traverses across the field, gives a total of 121. 49 

million tons, all of which is classed as inferred be- cause of the lack of positive data concerning the con- tinuity and character of the coal beds. 

Yellowstone National Park 

On the slope of Mount Evarts, close to the Yellowstone River in the northern part of Yellowstone National Park, a sequence of carbonaceous shale and.c.oal 

beds about 40 feet thick is exposed in rocks of Cretaceous aqe. 8/ Some ·of the coal beds are 10 feet thick 

but contain much clay and other impurities. 

Though described by Holmes,g/ as lignite, the 

actual rank of this coal is probably sub-bituminous. 

As the beds underlie only a relatively small area and 

the coal itself is impure, the deposit is of little or no 

economic value at the present time. 

COKING COAL ill WYOMING 

Although no coal has been mined in Wyoming in 

recent years for the purpose of making coke, the Cambria, Rock Springs, and Kemmerer fields contain coal 

beds that have weak to moderate coking properites. In 

the past, some of this coal was used to manufacture 

nonferrous metallurgical coke. None of the Wyoming 

coals make a satisfactory coke when used alone, however, but must be blended with more strongly coking 

coals in order to produce an acceptable product. Information available about the coking coal in each field 

is contained in the following paraqraphs. 

Cambria field 

In the Cambria field certain parts of the Cambria 

coal bed, presumably areas of greater than averaqe 

purity, possess good coking qualities and were formerly mined ·for making coke, which was used in the Black 

Hills smelters and refineries. However, most of the 

easily recoverable coal, especially that of coking quality, has been removed from the Cambria field, and it 

is doubtful if any appreciable tonnaqe of coking coal can now be recovered from the area. 

Rock~ field· 

Coal from some of the beds in the Rock Springs 

field, particularly bed 7, yields a poor grade of .coke 

that is not suitable for metallurgical purposes. The 

original reserves of bed 7, where the coal is at least 

28 inches thick and under no more than 2,000 feet of 

overburden, are estimated as 8QQ,440,000 tons, of 

which 335,160,000 tons is classed as measured reserves, 

3Q2,650,000 tons as indicated reserves, and 171,630,000 

tons as inferred reserves. At depths of 2,000 to 3,000 

feet below the surface the bed contains additional indicated reserves of 35,780,000 tons and inferred reserves of 205,710,000 tons. Approximately 107,580,000 tons 

8

Holmes, W. H., Repcrt on the oeo!OtJY of the Yellowstone Natifmal 

Park: U. S. Geol. am Geographical Survey 12th Ann. Rept., 

9 pp, 13-14, June 13, 1883. 

Idem. 
of coal included in the measured reserves of bed 7 had 

been mined or lost in mining to January 1, 1950. 

It seems possible that the coal from bed 7 could be 

used as a minor constituent in coking-coal blends. 

Kemmerer field 

During 1942 and 1943, coal in a· synclinal belt about 

12 miles long, extending north from about 12 miles north 

of the town of Kemmerer, was the subject of a cooperative survey by the U. S. Geological Survey and the 

Bureau of Mines to determine the quantity and quality 

of the coking coal in that area. The investigation showed 

that the best coking coal in the area is contained in a 

bed near the middle of the Willow Creek coal zone, 

which is known locally as the Middle Main bed or the 

Willow Creek No. 5 coal. The thickness and charact~r 

of the bed have been proved by drilling and sampling 

for a distance of about 4t miles along the east side ·of 

the synclinal belt, where the bed, except for two small 

areas of thin coal, is 4. 2 to 4. 9 feet thick. The Willow 

Creek No. 5 coal contains two clay partings 1 to 2 inches 

thick, lyin~J 7 and 14 inches below the top of the bed, 

respectively. The roof is a 2-foot clay bed, which is 

overlain by coal that is generally 1. 2 to 2.1 feet thick. 

The dip of the rocks in the proved area is· 28° to 33° W. 

30 

No faults were found, and the geologic relations on the 

east limb of the syncline are favorable for mining. On 

the western limb, however, the dips are at least 45° 

E., and locally the beds are vertical or overturned. 

The coal on the western limb is 3. 2 to 6. 4 feet thick 

and cont~s no partings. · 

In the area proved by drilling, which includes 

1, 710 acres, ·or nearly 3 square miles, the estimated 

original reserves are 15,345,000 tons. South of this 

area the coal presumably has the same coking qualities, and, in the five townships where the Willow Creek 

No. 5 bed is 28 to 42 inches thick, the measured and 

indicated original reserves total 96,640,000 tons to a 

depth of 2,000 feet. Additional measured and indicated 

reserves of 47,980,000 tons are present at depths between 2, 000 and 3, 000 feet. 

Coke manufactured from the Middle Main coal 

alone is unsuitable for blast-furnace use. However, 

when blended with 50 to 60 percent of coal from Sunnyside, Utah, it provides approximately the same quality 

of coke as that made entirely from Sunnyside coal. It 

is believed that treatment of the Middle Main coal to 

remove the impurities would reduce the amount of 

Sunnyside coal needed in the blend. 
Table 2.--Townships in coal-bearing regions for which reserve estimates are omitted, by counties 

)!& Horn Countr 

T.49H.,R.94W. T.S)H. ,R.91.W. Te52.N. ,R.95W. T.5()N.,R.96W. _T.54H. ,R.96W. '1'.5211. ,R.91W. 

T • SON • ,R.94W. T.491.,R.95W• T.S)N. ,R .• 95W • T.51N.,R.96W. 'T.49N.,R.97W. T.531.,R.9?W. 

T.Sll. ,R.94W .• '1'•501. ,R.95W. T .541. ,R.9S.W • T.52N.,R.96W. T.sON. ,a·.m. T.54N.,R.97W. 

T.52H.,R.94W. '1'.51!1. ,R.95W. T.49H. ,R.96W. T.S)N. ,R.96W. 'l'o51N. ,R.97We T.55N. ,R.9'7W. 

Campbell Q2Jmtt. 

T.56_,,.,R.74We 

'l'e57R.,R.74W. 

Te58N •• R.74W. 

'1'.561. ,R.75W. 

T.S?N.,R.75W. T.SSN. ,R.?SW. T.56N. ,R. 76W • T • 571 • ,R. 76W • T.S8!f. ,R.?6W.. 

~~ 

T.l8N. ,R.84W. T.l9N. ,R.87We T.l6N. ,R.8c;7tf. T.l)N.,R.90W. T.l6N.,R.91W. T.l4N. ,R.93W. 

T.l9N. ,R.84W. T.20N.,R.87W. T.l?N.,R.8c;7tf. T.lSN.,R.9()W& T.l)N.,R.92W. T.l5N.,R.9)W. 

T.20H.,R.S4)l. T.2li.,R.m• T.l8N. ,R.SC}W • T.l6N.,R.9QW. T.l4N.,R.92W. T .1611. ,R.93W • T.20Jf.,R.85W. Tel41.,R. • T.l9N. ,R.lt9W. T.20N.,R.9<7ie T.l2N. ,R.93W• T.l?N.,R.9)W. 

'1'.201. ,R.86W. 'i'.l9N.,a.saw. T.21t,N.,R.8c;7tf. T.l2JI.,R.91W. T.l)N •• ~.9)W. T.l81.;R.93W. '1'.1211.,R.~. Tel5N.,R.89W. 

Fremont CountY 

T.)5N. ,R.89W. T .)81. ,R.91W • T.)?N. ,R.93W. T.)4Ho ,R.97W. T.)N., R.)E. T.)N., R.SE. 

T.)6N. ,R.S9W. T.Z71f.,R.92W. T.)SN. ,R.9)W. T.U.,. R.lW• T.4N., R.)E. T.lt,NH a.sE. 

T.)?N. ,R.S9W. T.))l. ,R.92W. T.)9N.,lt.9)W. T.lN., R.lE. T.Sif., R~)E. T.SN., a .. s~. 

T.)SN. ,R.89W. T.)4N. ,R.92W. T. 28li • , R. 91t.W. T.21f., R.lE. T.ls., R.)E. T.lS., R.SE. 

T.)6N. ,R.90W. T.3Sff. ,R.92W. T.)5N. ,R.94W. T .)H •, R.lE. T.2S., R.)E,. T.2S., R.SE. 

T .)7N. ,R.90W. T .)6N. ,R.92W. T.)6ff.,R.94W. T.4N., R.lE. T.lN., Ro4E. T.lN., R.6E. 

T.38N. ,a.9()W. T•m••R.92W. T.~N. ,R.CA.W • T.Slf., R.lE. t.2H., R.4E. T.2N., R.6E. 

T.27N. ,R.91W. T. I. ,R.92We T. lf.,R.94We T.lN., R.2E. 'J'.)Jr., a.u. '1'.)11., R.6E. 

T.28N. ,R.91W. '1'.)91. ,R.92We T.)91.,R.94W. T.2N., a.a. T.4Jf., R.4E. T.U., a.6E. 

T.))N •• R.91W. · T.281f. ,R.93W. T .211. ,R.95W. T.)N., R.2E. T.SN., R.~t,E. T .271f. ,R.lOlW. 

T,)4JI. ,R.91W • T .• ))ll. ,R.9)W. T.2Sif. ,R.95W • T.4J., R.2E. T.lS., R.4E. T.2'7li.,R.102W. 

T.)Sif. ,R.91W. T.)41f.,R.9)W. T.))N.,R.95W. T.SI., R.2=• T.2S., R.4E. T ,411. ,R.l09\f • T.)61.,R.91W. T.)SI. ,R.93W• T.)2N. ,R.96W • T.llf., a.) • T.lN., a.sE. T,4li.,R,llOW• 

'f.)71. 1R.9lW • Te)61f.,R.9)W. T.33N.-,a.cnw. '1'.21., R.)Ee '1'.21., a.sE. 

1121 bDr.Du ~ i2hD.I2a ~ 

T.~t,6N.,R.97W. '~'-•47N• ,R.97We T.S)M.,R.76W. 

~~ 

'1'.21!1. ,R.lllW. T .2111. ,R.ll2W. T.21N. ,R.ll)'W. T.22N.,R.U4W. T.)SN. ,R.U6W. T.)6N. ,R~ll?W. 

'1'.221. ,R.lllW. '1'.22N. ,R.U2W. T.22N.,)J.ll)W. T.2)N.,R.U4W. 1'~221, ,R.ll?W. T.~N. ,l.ll?W. T.2)N.,R.lllW. '1'.2)1. ,R.ll2W. T.2)N. ,R.ll)W. T.24N. ,R.ll4'W. T.)ON. ,R.ll?W. T. N. ,R.ll?W. 

T.24M. ,a.mw. T.24N. ,R.ll~. T.2U.,R.ll)W. T.2?N.,R.ll6W. T.)2N.,R.ll?W·. T.l9N.,R.ll8W. 

T.2SN.,R.lllW. T.2SN. ,R.ll2W. T.2SN.,R.ll)W. T.28N. ,R.U6'M. T.))M. ,R.ll?W. T.20N. ,R.ll8W. 

T.26N. ,R.lllW. T.26N. ,R.U2W. T.l9N. ,R.lllt,W. T.29N.,R.U6W. T.)4H.,R.U?W. T.l9N.,R.ll9W. T.l91f. ,R.ll2W.; T.l9N. ,R.ll)W. T.20N. ,R.ll4W. T.)ON.,R.ll6W. T.)SN.,R.ll?W. T.20N. ,ll.ll9W. T.201.,R.ll~W. T.20N. ,a.u,v. T.21N• ,R.lllt,W. T.))N. ,R.ll6W. 

Natrga 29Jm.U 

T.)lN. ,R.8)W. T.)4J.,R.8~t,W. Te)U. ,R.86W. T.)6N.,R.S?W. T.37N _,a. ssw. .T .)6N. ,R.$9W. 

T.)2lf.,R.8)W. T.)2N.,R.8SW. . T.),5N.,R.86W. . T.,~·· ,a.aa:· T.J8N. ,a.ssw • T.J~·,R.89W. T.)2N. ,R.SJ.,W. T.JJN.,a.ssw. T.)SN. ,R.S7W. T.) N. ,R •.• T. SN. ,R.S9W. T. N. ,R.S9W. T.))JI. ,R.S~t,W. T.J4N. ,a.ssw. 

lal:k. ~ 

T.~t,SN.,R.98W. T.S2N. ,R.9SW. T.~t,9N .,R.99W. T.;)N. ,R.99W. T.S)N. ,a.ioow. T.54N.,R.l01W. 

T.49N• ,R.98W. T.S)N. ,R.98\t. T.SON. ,R.99\!i • T. Slt.N. ,R•99W. T.54N. ,R.lOOW. T.SSN. ,R.lOlW. 

T.SON. ,R.98W. T.54N. ,R.9S\t. T.51N. ,R.99W. T.SSN. ,R.99W• T.55N.,R.lOOW. T.,6N.,R.l01W. 

T.51N. ,R.98W. T.ssx.,a.C}SW. T.52.N.,R.99W •. 

Shtr14ap £2!mU 

T.S6N.,R.76W. T. 571 •. ,R. 76W • T.58N. ,R.76W. T.56N. ,R.77Wo T.S)N. ,R.?SW. T. 54!1. 1 R. 7Cfif • 

S»blettt ~ 

T.27N. ,R.lO)W. T .27H. ,R.lOSW. T.29N. ,R.l06W. f. )ON., R.lO?W. T.)ON.,.R.l08W. T. 2SN. ,R.l09W • T.28N. ,R.J.O)W. T. 2dlf. ,R .105W. T.)ON.,R.l06W. T.)lN. ,R.lgrw. T.)lN.,R.l08W. T .291. ,R.l09W. 

T .• 27N. ,R.l04W. T.29N. ,R.lOSW. T.2?N. ,R.lO?W. T.2?N •. ,R.l W. T.)2N.,R.l0fw• T.)ON. ,R.l09W. 

T.2SN.',R.l04W. T.2~N. ,R.l06W. T.2SN. ,R.lO?W. T.2SN.,R.lo8W. T.))N.,R.lO W. T.)lN. ,R.l()<}W. 

T.29N. ,R.lO~t,W.- T.2 N. ,R.l06W. T.29N.,R.l07W. T.29N. ,R.lOSW. T.2?N. ,R.l09W. T.)2N. ,R.l0c;7tf. 
Table 2.--Townships in coal-bearing regions for which reserve 

estimates· are omitted, by counties--r.o~tinued 

Sublette County--Continued 

T.33N.,R.l09W. T • 31N. ,R.llOW • T.JlN.,R.lllW. T.31N.,R.ll2W. T.)lN. ,R.llJW. T.J)N. ,R.lll.W. 

T .34M •, R.l09W. T .32N. ,R.llOW • T .32M. ,R.lllW. T.32N. ,R.ll2W. T.32N.,R.ll3W. T.34N. ,R.ll4W. 

T.35N. ,R.l09Wo. T. 33N. ,R.llOW. T.J)N. ,R.lllW • T.J)N., R.ll2W • T .33N. ,R.llJW, T.)5N. ,R.lll,.'W• 

T.36N. ,R.l09W. T.)4N. ,R.llOW. T.34N.,R.lllW. T.34N. ,R.ll2W. T,.34N.,R.ll3W. T.)6N. ,R.Ut..W. 

T.37N. ,R.lQ9W. T.35N.,R.llOW. T.J5N.,R.lllW. T.J5N.,R.ll2W. T.35N.,R.ll3W. T.37N.,R.ll4.W. 

T.)8N.,R.l09W. T.36N. ,R.llOW. T. J6N. ,R .lllW. T.36N.,R.ll2W. T.36N.,R.ll3W. T.JSN. ,R.l14We 

T .39N. ,R.l09W •. T. 37N. ,R.llOW. T • 37N. ,R.lllW. T.m.,R.ll2W. T .37M. ,R.ll3W • T.29N. ,R.ll5W. 

T.2~N.,R.llOW. T.~N.,R.lllW. T.2?N.,R.ll2W. T. N.,R.ll2W. ·T .)8N. ,R.ll3W • T.J()N.,R.ll5W, 

T.2 N.,R.llOW. T. N. ,R.lllW. T.28N.,R.ll2W. T.28N. ,R.ll)W. T .)ON. ,R.114W• T .JlN. ,a.usw. 

T.29N. ,R.llOW. T.29N.,R.lllW. T. 29N. ,R.ll:.2W. T.29N. ,R.ll)W. T.31N• ,R.l14W~ T.34N. ,R.l15W. T.3C>I~. ,R.llOW •. T.J()N. ,R.lll W. T. JON. ,R.ll2W. T.J()N. ,R.ll)W. T.32N. ,R.ll4W. 

Sweetwater County 

T.22N.,R.90W. T.24N. ,R.95W • T.l9N.,R.98W. T.24N. ,R.l02W. t.21M. ,R.lO?W. T.l)N.,R.llOW. 

T.23N • 1R.9QW • T.25N. ,R.95We T.20N.,R.98W. T. 25N., R.l02W • T •. 22N. ,R.lO?W • T .14M. ,R.llOW. T.24N. 1R.9QW. T.26N. ,R.95W. T.21N.,R.98\tl. T .26N. ,R.l02W • T.2)N.,R.l07W. T .15N. ,R. lOW. T.25N~,R.9()W. T .12N., R.96W • T.22N. ,R.98W. T.l2N. ,R.l03W. T. 24M. 1 R.lO?'i. T.16N. ,R.llOW. 

T.22N. ,R.91W. T.l)N. ,R.<)6W • T.2)N. ,R •. 98W. T.24N. ,R.lQJW. T.25N. ,R.lO?W. T.l?N. ,R.llOW'. 

T.2)N.,R.91W. T.l4N. ,R.96W. T.24N. ,R.98W. T.25N.,R .. l03W. T .26N. ,R.lO?W. T .18N. ,a.uow. 

T.24N.,R.91W. T.l5N. ,R •. 96W. T.25N.,R.98W. T. 26N. ,R .103W. T.l2N. ,R.l08W. T.19N.,R.llOW:. 

T.25N.,R.91W. T.l6N. ,R.96W • T.l2N. ,R.99W• T.l2N. ,R.l04W. T.l)N. ,R.l08W. T .20N.,R.UOW. 

T. 26N. 1 R. 91 W. T.l?N.,R.96W. T o13N ., R. 99f#• "'!!'.24M. ,R.l04.W • T.l4N. ,R.108W. T.21N.,R.llOW. 

T.22N.,R.92W. T.l8N.,R.96We T.14N.,R.99We T.25N.,R.l04W. T .15M. ,R.108W. T.22N. ,R.llOW. 

T.2)N. ,R.92W. T.l9N. ,R.96W. T.15N.,R.99W. T.26N.,R.l04W. T .16M., R.lOSW. T.23N.,R.llOtt. 

T.24N. ,R.92W. T.20N.,R.96W• T .16M. , R. 99W • T.l2N. ,R.l05W. T.l7N.,R.l08W. T.24N.,R.l10W. 

T.25N. ,R.9.2W. T.21N. ,R.96W. '1'.1?1. ,R.99W. T .13M. ,R .105W. T .18M·. ,R.l08W • T .25N. ,a.uow. 

T.26N. ,R.92W. T.22N.,R.96W. T.1ftH. ,R.99W. T.l4H• ,R.l05W. T.19H. ,R.108'i. T .261. ,n.-uow. T.23N. ,R.93W. T.23N.,R.96W. 'T.l9JI.,R.991. T.2)1.,R.105W. T .20N. ,R.l08W. T.lJN. ,R.111W. 

To 24M. ,R.93W. T.24N. ,R.96W • T.22N.,R.99W. T • .24M. ,R.l05W • T.21N .. ,R.l08W. T .14N .,R.lllW. 

T.251.,R.9)W. T.25N. ,R.96W. T .. 2)1. ,R.~. T.25N. ,R.l05W. T .22M. , R·.l08W. T.l5N.,R.111W. 

T.12N.,R.94W• T.26N. ,R.96W. 'l'e241e ,R·e99Wo T .26N. ,R.105W. T.23N. ,R .. l08W. T.16N.,R.lllW. 

T.1)N. ,R.94W. T.12N. ,R.97W. '1'.251. ,R.99W. T.12N.,R.106W. T .24M. ,R.l08W. T.l7N.,R.111W. 

T.l4N.,R.94W. T.l)N.,R.97W. T.26N. ,R.<)9W. T.l)N. ,R.106W. T.25N. ,R.l08W. T .18M. ,R.lllW. 

T.15N.,R.94W. T .14M. ,a.cnw. T.12N. ,R.lOOW. T.l4H.,R.106W. T.26N. ,R.l08W. T .19N. ,R.1UW. 

T.l6N. ,R.94W. T.l5N.,R.<}1W. T.l)N.,R.100W. T .15N. ,R .106W • 'l'.l2N. ,R.109W. T.20N.,R.1llW. T.17N. ,R.94W. T.16N. ,a.m. Tel4N. ,R.lOOW. T.20N. ,R.106W. T.l)N. ,R.l09W. T.21N. ,R.111W. T.l8N.,R.94W. T .l?N. ,R.97W. T.l5N. ,R.100W. T .211. ,R.l06W • T.14N. ,R.l09W. T .22M. ,R.lllW • T.l9N. ,R.94W. T.l8N. ,R.97W. T.16N. ,R.100W. T.22N.,R.l06W. T .151. ,R.l09W. T.2)1. ,R.lllW • 

T.24N.,R.94W• T.19N. ,R.97W. T.22N. ,R.100W. . T.23N. ,R.l06W. T .16N. ,R.l09W. T.24N.,R.lllW. 

T.25N • ,R.94W • T .20M. ,R.97W • T .23M. ,R.lOOW. T .24M. ,R.106W. T.l?l. ,R.1o<}W. '!'.25N. ,R.UlW. 

T. 26N • 1 R. 94W • T.2lN. ,R.97W. To24N. ,R.lOOW. T. 25N. ,R.l06t~. T.l8N. ,R.1Q9W. T.26N. ,R.1ll.W. '1'.1211. ,R.95W. T.22N. ,R.97We T.25N. ,R.lOOW. T .. 26N. ,R.106W. T'~l9No ,R.10<JNe T.l2N. ,R.ll2W. T.l)N. ,R.95W. T .2311. ,R.97W• T .26M. ,R.lOOW. T.l2N.,R.lO?W. T .20M. ,R.l09\f. T.l)N. IR.ll2W. 

Te14N. ,R.95W •. T.24N.,R.97We T.l21.,R.101W. T .lJN. ,R.101W. T .21M. ,R.109W. T.l4N. ,R.ll2W. T .1511. ,R.95W. T .25N. ,R.9'7We T.13N.,R.101W. T.14N. ,R.lO?W. T.22N. ,R.109W. T.1SN.,R.U2W. T.l6N.,R.95W. T.l2N. ,R.98W. T .23M. ,R.lOlW. T.l5N • ,R.lO?W. T~ 23N. ,R.l09W. T.l6N. ,R.112W. 

T ol7N. ,R.95W. T.l)N. ,R.98We T.24N. ,R.lOlW. T.l6N. ,R.107We T .2/tN. ,R.109W. T.l?ll. ,R.ll2W. T.l8N. ,R.95W. T.l4N.,R.98W. T.25N. ,R.lOlW. T.l7N. ,R.!O?W. T.25N. ,R.10<)W. T .lSI. ,R.ll2W. 

T.l9N • ,R.95W. T.15N.,R.98W. T .26M. ,R.lOlW. T.l811.,R.l07W. T .26N. ,R.109W. T.19N. ,R.112W. 

T.20W .,R.95'W • T.16N.,R.98W. T.12N. ,R.l02W. T.l9N.,R.107W. T.l2N. ,a.uow. T.20N. ,R.U2W. T.2lii.,R.95W. T.17N. ,R.9.8W. T.13N. ,R.l02W. T.20N.,R.l07W. 

I.Wm~ 

T.41N.,R.llOW. T .44N. ,R.lllW • T.39N. ,R.ll)W. T.45N.,R.ll4W. T .39M. ,R.l16W. T.40N. ,R.ll7W. 

T.42N.,R.110W. Te45N.,R.1UW. Te43N • ,R.ll3W • T.38Ne ,R.ll5W. T.~N.,R.ll6W. T.40N. ,a.usw. T.43N. ,R.llOW. T.4)N.,R.l12W. T.44N.,R.l]J.W. T.4QN. ,R.ll5W. T. 9N.,R.l17W. T.uN. ,a.usw. T.43N. ,R.111W. T.45N. ,R.112W. 

Uinta ~ 

T.l2N. ,R.112W. T.1)N. ,R.ll)W. T.14N. ,R.ll4W. T.15N. ,R.ll5W. T.16N.,R.ll6W. T.lSN. ,R.ll9W. T .l)N. ,R.ll2W. T.14N. ,R.ll)W. T.l5N.,R.114W. T.l6N.,R.ll5W. T.l2N. ,R.117W. T.l2N. ,R.l20W. T.l4N. ,R.ll2W. T.lgN• ,R.113W. T.16N. ,R.114W. T.17N.,R.ll5W. T.l)N. ,R.ll?W. T.l)N. ,R.l20W. 

T.15N. ,R.112W. T.l N.,R.ll)W. T.l?N. ,R.114W .• T.18N.,R.ll5W. T.18N. ,R.llSW. T.l.4N. ,R.120W. T.l6N.,R.ll2W. T.17N. ,R.ll)W. T.l8N. ,R.ll4W •. T .12N. ,R.ll6W. T.l2N. ,R.119W. T.17N.,R.l20W. 

T.1?11.,R.ll2W. T.lSN. ,R.ll)W. T·.12N. ,R.l15W. T.1)N. ,R.ll6W. T.l6N. ,R.ll9W. T.12N.,R.l21W. T.1SN.,R.112W. T.12N. ,R.ll4W. T.l)N. ,R.ll5W. '1'.1/t.N. ,R.116W. T.1?N. ,R.ll9W. T.1)N. ,R.121W. T.12N. ,R.1l3W. T .l)N • ,R.llltW. T.IJ..N. ,R.115W. T .15M .• ,R.ll6W. T.U.N. ,R.l21W. 

Washakie~ 

T.47N. ,R.92W. T •47N. ,R.93W. T.47N. ,R.94W. T.46N. ,R.95W. T o46N. ,R. 96W • T.lt?N. ,R.9?W. To45N. ,R.93W. T.48N .• ,R.9)W. T.48N. ,R.94W. T.tjN• ,R.95W • T.47N• ,R.96W. T.4SN.,R.97W. . T.46N. ,R.93W. T•46N. ,R.94W. To45No ,R.95W· T. N.,R.95W~ T.48N.,R.96W. 

32 
Table ).--Areas included in and· omitted from 

reserve estimates, by counties -

~ c.· ·~"~Q) 

.,... ..... dJQ) U) 

"0 Q),-i.f r....t Q) 

C11Ul b!}Q)U)(J'l bO "0 .,_, •r-t 0 b!)'tj .._:) 

IQ)Q) s:: "d Q) Q) ~a>ctSS ~<l>C\1 

...-f~r-1 .,... ~ .,_, r-4 .,...~ E' Q) •r-t +J s 

County C\1 ctS•r-t M r-4 ro .,... ~ .p .,.;, Q) bOr... .._;,.,... 

o a C\1 o·e e C\1 ..... .f.) s.;.. C11 C\1 ..... .._:) obO Q) ~·M <l>SCJlctf .._:) Q) E! ·Ul ~(],) ,.0 ..... .j..) Q) ..OO<l>::S C..OO<U 

...-f •r-t S... I CtlH I ~- <L> I 

C\1HC\1 ....-f('ljQ)C\1 r-IC\1SUl t>...-fctSS 

.._:)(l$::J C\10> ::s coa>o S...Gtl~O OQ)O" 0 H S:: -~ os...s...s:: (J)OS...S... ~,.OUl 0 qj ..... Ul_ Q cUr....t•r-t A... .CJ C11 r....t 

Albany •••••••••••• 389 389 0 0 

Big Horn •••••••••• 1,091 30.9 782 71.68 

Campbell •••••••••• 4,669 4,430 239 5.12' 

Carbon •••••••••••• 2,872 1,238 1,634 56.89 

Converse •••••••••• 2,928 2,928 0 0 

Crook ••••••••••••• 125 125 0 0 

Fremont ••••••••••• 2,467 140 . 2,327 ... 94.32 Goshen •••••••••••• 319 319 0 0 

Hot Spring& ••••••• 442 377 65. 14.71 Johnson ••••••••••• 2,466 2,452, ''14 0.57 

Lincoln ••••••••••• 1,048 268 780' 74.43 Natrona ••••••••••• 1,297 655 64·2. 49.50 Niobrara ••••••••• ~ 397 397 0 0 

Park •••••••••••••• 1,301 561 740 56.88 

Sheridan •••••••••• 1,659 1,531 128 7.72 

Sublette •••••••••• 2,795 1 2,7<14 99.97' Sweetwater •••••••• 9,781 1,064 8,717 89.12 Teton ••••••••••••• 763 7 756 99.06 Uinta ••••••••••••• 1,305 139 1,166 89•3S Washakie •••••••••• 1,191 622 : 569 47.78 

Weston •••••••••••• 684 

Yellowstone 684 0 0 

National Park ••• 66 6 60 90.91 

Total ••••••••••••• 40,055 18,642 21,413 53.46 

33 
0 to 1,000 ~et overburden. 

o;fownabip In beda In beda In beds 1f to 28 28 to fa 1101'8 tJum Total inobes inches ta inches 

thick thick thick ----

ToMB., Re61Wo T.51B., RoMW. 

Count)" total 

T.22J.,Jt.l15W. .... 10.01 10.01 'f.23H. ,R.ll5W. . . . . 2.56 &.83 8.ail 

'f.2fB.,R.llR. .. . . · a.a1 4.11 s.ta 

'-'•MB.,R.115W. .... . . . . l.U 1.41 

'f.lft.,R.118Wo .... 2.11 eo.sa 62.'14 

T.sow.,a.11D. ...... 2.65 S9.56 42.21 'f.alH.,R.116W. . . . . . . . . 65.82 65.82 'l'o22H.,R.116W. . . . . . ... M.:IO M.:IO 

'f.23B.,R.116W. . . . . 4.80 11.53 15.'7S 

'f.2.B •• R.116Wo . . . . . . . . . . . . . ... 'f.MI' •• R.116W. ··:&a 8.0'7 8.0'1 

'.r.035B.,R.ll6W. .0'1 8.'76 3.48 

'l'ol9lfo 1 Rol1'7We . . . . . . . . a.ae 3.28 

Co) 

~ C0l~Jlt7 total ,· .0'7 1 •• 56 24'7.23 261.86 

t.IOI'.,.R.1011. a:: •' ·10 .... .• se f.8li.,B.l0811. 25.05 239.83 a68.49 t.IOJr.,R.l.Oal·, . ·.14 1.28 1.42 

!'.all •••• lOR. .• 98 5.a9 123.1S 129.40 t.ln.,.B.lOft. a.28 26.1S 131.41 159.82 

T.SOB. ,.R.lOfWo 5.16 21.'71 315.85 342.'12 T.2llf.,.R.104W. 1.'70 9.38 65.U '76.28 T.18JI'.,R.lOSW. 1.35 95.58 96.93 '1'.19:1. ,R.105W • 8.9'7 39.60 191.13 239.'70 '1'.201'. ,.R.l05W. 1.35 4.14 50.66 56.15 

Count.,- total 24.33 138.89 '< 1.114 .. 01 1,3'71.23 

'1'.18:t.,R.116W. .... . ... a.48 2.48 T.l'7Jf.,R.11'1W. .... . ... 4.02 4.02 'l'e181'.,R.11'1W. . . . . 1.60 aa.as as.es 'f.l4B.,R.ll9W. .... . ... -'.f'7 '·"' 

Count.,- total .... 1.eo 39.20 40.80 

T.f5:1.,. R.61Wo . . . . . ... .05 .05 '1'.46B., R.61W. . . . . ,..94 . 7.94 '1'.45B.,. R.62W. . . . . . ... . . ·.sa, .~ 

'fo46B •• R.62W. . . . . . . . . a.ss 3.3~ 

Coul\t)" total . . . . . ... 11.88 11.88 

Total I 24.401 lf9 .. 11f "1.1512.811 ~-686.921 

!'able f ....... \U'ed orisiD&l r .. ervea ot b1tua1Doua coal 1D W7oa1Dg 

( 1A ailliOIUI ot llhort tOIUI) 

1,000 to a,ooo teet overburden .a,ooo to 3,000 teet overburden 

In beda In beds In beda In beds In beds In beds 

U to 28 28 to f2 · 1101'8 thaD Total u to 28 as to 42 liON tban Total inches inebes 42 lnobes 1Aobea inches f2 lnobes 

thick thick thick thick thick thi.Ok. 

- -· ~ 

~ Countl 

.... .... .... . ... .... ........ 

lt!!!!!a . .9!!!!!tt 

. . . . ··:i4 1.19 1.19 . . . . .... ..• ., ...• ., . . . . .• 26 '.40 . . . . . . . . . . . . . ... . . . . -1.61 2.8'7 •• 48 . . . . . . . . .... .... . ... . ... :st:a.; .... .... . . . . . ... M.2'1 . . . . .... 10.06 10.06 

. ... ·.'73 19.00 19.'7S .... .... 1.09 1.09 

. . . . . ... 59.'78 59.'78 .... . . . . 9.aa 9.aa 

. ... 2'7.16 a'7.16 . . . . . . . . 8.09 8.09 

.... 4.31 '7.85 1a.l8 . . . . .... . . . . . ... . ... . . . . .fl .41 . . . . . ... .... .... 

·:a ~ ... 3.31 a.s1 . . . . . . . . .05 . .05 

.13 . . . . .ag . . . . . . . . .... . ... . . . . 9.49 9.48 . . . . . . . . 1.16 1.16 

".16 6.92 165.59 1'12.8'7 .... .... 30.14 :50.14 

Sweetwater~ 

. ... . ... . ... . ... . ... .... a.31 U.10 16.41 . . . . . ... . ... . ... .... . ... . ... . ... . ... . ... . ... . ... , ... . ... . . . . . . . . . . . . .. ... . ... . ... .... . ... . ... .... . ... ~ .... . ... . ... . ·.56 a.35 25.5'7 28.48 .... .... . ... . ... .... .25 1.06 1.31 .... . ... . ... . ... ;:9i .14 . '.14 .... . ... .... . ... 2.10 :54.'74 41.'75 .... . ... . ... . ... a.o• 4.69 65.23 '71.96 .... .... . ... .... 4.?0 14.51 ·140.M 160.05 .... .... . ... .... Ulnta~· 

. . . . ... 4:<>2 .... . ... .... . ... . . . .02 .... . ... . ... . .... . .. .n .39 s.eo . . . . . ... . . . . . ... . . . . ... .... . ... . ... . ... . .... . ... •• 1 11.fl 12~8a . . . . . ... . ... . ... 

!.!!l!!! Raatt . . . . . .. . . ... . ... . .... .... . ... .... .... .... . ... . ... . . . . .... .... . ... .... . ... . -.. . ... . ... . ... .... . ... . .. . . . . . . ... . ... . ... . ... .... . ... . . . . . ... .. . . . ... . ... . ... .... .... 

f.e61 · 21.1Ml Sl8.:MI M5.54.J •••• I. .... I so.n·J 30.141 

Total ln all overburden 

categ~rles 

In beds In bed• In bed.a '.rownabip 

14 to liB 88 to f2 more t.ban total 

inches inobea f2 inobes 

thick' thick thick 

-

.58 

.56 

1.15 

.... 11.8'7 . 11.1'7 . ... a.'70 &.Oil 8.'19 . ... 3.92 8.98 10.90 . ... 1.41 1.fl ..... 2._19 '104.88 . 10'7.0'7 

. ... 3.38 59.65 63.03 

. . . ·~ . .... 13 •• 82 1M.8a 

. . . . .-... .69.55 69.55 

. ... 8.51 19.38 a7.89 .... . ... .f1 ;· .41 

. . -. 11.43 11.43 -·.as ·.'78 a.'76 3.1'1 .... •'• .. 13.93 13.93 

.23 a1.48 .42.96 464.6'7 

. ·.as 27·:~~ ·as :5.61 253.93 aS4:90 .• 14 1.28 . 1,;f2 .98 5.a9 123.13 129.40 2.28 26.13 131.41 159.82 

5.'72 24.06 341.4a 3'71.20 1. '70 9.63 66.20 '1'7.53 1.35 95.'7a 9'1.0'1 11.07 44.51 225.8'7 281 •• 5 3.39 8 .• 83 115.89 128.11 

a9.0S 147.40. 1,354.85 1,531~28 

. ... . ... '2.48 2.48 . ... 8.04 8.04 .... 2.01 40.6a 42.63 . ... . ... •• 7 .4'7 

. ... 2.01 51.61 53~62 

. ... .... .05 / ·.os .... . ... 7.94 '7.94 .... .... .53 .53 .... . ... 3.36 3.36 

.... .... 11.88 11.88 

a9.26l 171.45l 1.861.891 2~062.60 
0 to 1,000 teet overburden 

'l'ownabip 14 JA .... to 28 r· 28 to ... f2 , aore "' .... than ~ Total 1npb.ea 1nchea 42 1nchea tm1'ck thick thick 

T.2u •• a.'1w. 1'1.19 17.19 !.au., R.eow. 2.19 1.66 1.42 5.46 T.221 •• a.eow. .&'1 1.aa .1'1 2.07 T.:U.B., R.83W. .1'1 .16 .81 1.:54 To25ll., B.83W. .15 .oa .... .18 

T.21ll., R.IMYi. 1.12 .... 1.,12 

'1'.2211., R.IMW. • 10 .:51 .... .n '1'.2tR., R.MW. 1.21 2.76 .Of 4.01 'l'o2lJI., R.SM. .18 .... . ... .18 '!.221., R.e&w. .sa .... . ... .38 

'1'.1'1ll., R.90'1. .... 1.81 8.05 9.88 '1'.1811., R.90W. . . . . 1.09 . ... 1 .. 09 T.l9B., R•90W• .... . ... 2.49 2.49 

Count}' total 8.67 9.04 :50.1'1 f5.78 

1:.) 

Cl1 

'!-~~····~!!~ .... v.oe 26.66 ~6.'72 

'!.12B.,R.lliW. .... 10.8f H.29 25.1~ 

'l'oiR.,B.llR. .... .27 .27 or.au. ,a.u~ .. .... 3.81 6.6f 10.f6 !o25B.,R.UDW. . . . . .... 29.5& 29.53 

'f.26li~,R.ll5W. .... . ... 8.89 8.89 'f.MB.,R.115W. 4.80 4-.eo T.19B.,R.116W. '7.70 off 39.01 47.15 '1'.201. ,R.l16W. .... 7.06 2'7.09 M.16 T.211f.,R.ll6W. .... . ... 16.61 15.61 

'f.22H.,R.ll61i. .... 1.95 3.95 'fo2IR.,R.ll6W. .... .03 :51.93 31.96 'f.2U.,R.ll61f. .... 2.:56 1.'71 4.07 'f.I51.,B.l161f. .... . ... 'f'.IO.,R.11R. .... . ... 27.&'1 27.6'1 

or.MB.,a.u• •. .1& .eo 2.62 3.5'1 '!.a&R.,R.ll •• .14 .os 18.0'1 18.24 '!.1 •• , •• 11 .... . . . . ..... .93 .93 

Count}' total '1.9. M.f3 259.8'7 :502.09 

'1'.&8JJ., R.991r. 'f .68Jr • ,R.l.OOW • 

CCNDt7 total 

'!'able 6.--Dndlcated origlnal reaervea ot bitu.inoua ooa1 in WJaains 

(in .t11iona or abort tone) 

1,000 to 2.000 teet overburden 2,000 to :5,000 teet overburden 

Il>bodo,Inbodo1IA .... In beda In beds In beda 14 to 28 28 to 42 aore than Total U to 28 28 to 42 aore than Total inchea 1nchea 42 inchea inches incbea 42 inches thick th1 ck th1 ok thick thick thick 

.2!£!2!! CCNDtz 

2.91 2.91 .... 1.'11 1.t2 .so '1.15 6.18 :5.95 ..... 10.11 .~2 1.88 a.eo 1.91 1.91 .... l.&e. .51 .19 .51 1.21 .55 .as .... .78 .o2 . . . . . . . . .o2 . . . . . . . . . . . . . ... . ... . . . . . ... . . . . . . . . .... . ... . ... .... .86 1.9& .... 2.82 .84. 1.64 . ... 2.:58 . ... . . . . . ... . ... . . . . . ... .... .... . ... .... . ... . . . . . . . . .... .... . ... . ... . ... . ... . ... .... . ... . ... . ... . ... . . . . .... . .... .... . ... . ... . ... .... .... .... . ... . . . . . ... . . . . . ... 6.04 '7.45 :5.62 17.11 9.70 '7.61 .... 1'7.31 

Lincoln CCNDt1 

. ... 8.32 20.95 29.2'7 . ... 7.13 H.88 22.01 . ... 9.50 5.59 15.09 . . . . 6.05 3.f'7 8.62 . ... .... . ... .88 3.38 4.26 .... .1'7 .u .61 .... .... 28.1'7 28.17 .... . ... 2~.21 22.21 

. ... . . . . . ... . ... . ... . ... .... 1 ... l.4f . ... 7.00 64.69 71.69 5.61 63.48 68.99 . ... 9.86 f'7.3l 57.1'7 .... 9.18 81.28 '70.46 . ... .'16 20.15 20.91 .... 2.2'7 6'7.9'7 '70.24 

. ... 1.45 2'7.22 28.67 .... f\.:56 4H.OO 54.36 .... 1.67 40.93 f2.60 . ... 6.18 48.9f> 55.13 . ... 6.M 5.65 12.19 .... 10.35 10.16 20.51 . ... . ... .... . ... 1.08 1.08 . ... . . . . 33.27 33.2'1 .... . ... '7.91 '7.91 

.19 1.1'1 11.51 12.8'1 .4'7 .52 14.79 16.'78 .75 .6f l6.f6 17.EM .Of .01 15.1:5 15.18 .53 . ... 8.39 6.92 2.19 1.44 2'7.2'7 :50.90 

8.4'7 40.79 333.10 382.36 8.21 f8.66 40'7.02 463.89 

.l!!3~ 

'1'ota1 1n all overburde~ 

categor1ea 

In bed• In beda In beda Townahip 

14 to 28 28 to 42 aore than total 

1nchea inches 42 1nohea thick l thick thick 

a:>.lO a:>.10 12.50 9.02 1.62 21.14 :5.52 5.02 .17 8.71 1.f:5 .se 1.12 a.aa .17 .o:s . ... .liiO 

1.12 . . . . . ... 1.12 .10 .31 . ... .f1 2.91 6.26 .Of 9.21 .18 . . . . . ... .18 .:s8 . ... . ... .38 

. ... 1.81 8.05 9.86 . ... 1.09 1.09 . ... . ... 2.49 2.f9 

22.31 24.12 :53.'79 80.22 

. ... 24.61 62.49 87.00 . ... 25.39 23.35 48.7f . ... .2'7 .2'7 . ... 4.86 10.46 15.32 . ... . ... '79.91 '79.91 

. ... . ... 8.89 8.89 6.24 6.2i 20.21 .f4 167.18 18'7.8~ 

. ... 26.10 1:55.68 161.78 . ... 3.03 103.73 106.'76 

. ... '7.81 79.1'7 86.98 . ... 7.88 121.81 129.69 . ... 19.25 17.52 :56.77 . ... . ... 1.08 1.08 . ... . ... 68.85 68.86 

.81 2.49 28.92 32.22 .93 .68 49.65 51.26 2.'72' l.f4 M •. 59 38.'75 

2f.6'7 123.88 999.79 1,148.:54 

6.65 

11.25 

17.90 
c.:> 

en 

!ownahip 

'!.801' •• R.lOlW,. "!' .Jllf •• R.101W. t.20 ••• a.wn .. 'folilllfo 1Rol.Oafo '!.2D.,H.10 •• 

'f.aoJ •• B.J.OR. t.au •• a.1oa. T.2211 •• R.103W. !.l"'I.,R.l04W. 

Tol8B.,R.-10~. 

T.u~s •• B.1oa. T.20B.,R.10G. 

!.2li.,R.l04W. 

T.ta •• R.10G. T.16B.,B.10&w. 

! .17lf. ,B.105W. t .1n •• a.1oaw. 

T.19J'.,R.105W. 

'foliDB •• R.105W, 

COunt7 Total 

~ - ·-

T .1811. ~R·~~6W. T .16J'. ,R.11 '1W. !.17JI •• R.117W. T.l8JJ. ,R.ll7W• T..l41.,8.U~. 

or.lu •• a .. uew. T.16B.;.R.ll=· !.ln ••. a.u . T.1s1 •• a .. 11w. 

T .• lo.•R·.~•· 'fol6J!ollo~~,• 

~tJ:,!'<!t&l: 

T.•o••• llo6lW. 

T.-46B •• R.61W. t.46a •• a.6aw. !.4ft., R.62W. 

.. .f deL.,..:...B..t_&ft.. 

C1ount7 .total : 

. total 

0 to 1.000 teet overburden 

In beda 14 to 28 1Dohea 

thick 

16.68 ... 5.65 1.20 46.22 1'7.58 35.'75 135.95 .... .35 

1.5'7 1.09 10.'75 46.14 '13.45 35.29 1.'76 .10 6.14 6.46 

33.04 4&.al 12.43 26.81 38.92 39.53 18.24 13 .• 38 

11.86 .53 

46.15 50.04, 

60.10 

44.72 lllo~~ 55.30 6.10 1'7.01 

409.47 605.60 

4.28 

.sa ·:&a 6.06 .... 3.2. .... .... . ... • I o6'1 1.55 .... . ... .... 

.. ~. 9.91 .... 2.04 ... ~. .2'7 

14.48 14.35 '. -· 

.40 3.291 3.66 

2.66 

2.23 

-H••.J-- _ 1.19 

&.291 10.14 

.liS 

2o35 

31.29 

190.16 '7.43 

.47 304.80 

198.05 

• :78 ' 

6&.41 

124..11 

224.11 7.50 

. . . . ..'70 

1&a~'7~ 

30.62 

1'7.34 

1.450.30 

26.8'7 

45.0~ 

63.26 

41.24 

45.80 

7'7.8'7 

19.82 

2.80 

35.49 

81.3'7 

. ... 439.56 

Total 

1'7.64 

9.20 

95.09 

361.86 7.78 

3.13 

361.69 

246.'79 1.86 

13.38 

145.'76 

163.3'7 

302.56 

39.12 

12.:59 

156.89 

355.'1'7 

130.64 

40.45 

2,465.3'7 

~1.15 

45.94 

69.32 

44.48 

45.80 

'79.99 

19.8t 

2.80 

45.40 

83.41 .2'1 

4:68._38 

-• .o 6.95 

2.66 

2.23 

1.19 

1s.a· 

Table 5.--IaDlcated or1s1ual reaervea ot b1tumlnoua coal ~ Wyoaing 

( 1n a1111ona ot abort tona) --continued 

1.000 to 2.000 teet overburden 2.000 to s.ooo teet overburden 

In beda In beds 14 to 28 !otal 14 to 28 Total 1Dcbea 1acbea 

thick thick: 

Sweetwater County 

2.61 2.61 .... .... . ... .... 1.31 ·.91 6.18 8.40 . . . . . . . . . ... .... .81 2.00 2.81 .... .... 8.32 74.5'7 108.33 191.22 .... .54 .... .54 . . . . . ... ·.65 .65 .... .... .... .... . . . . .... . ... .... .... . . . . .01 4.39 4.40 . ... . . . . .... .... .... . ... '.36 .36 .... . . . . .... .... . . . . . ... . ... .... . ... . . . . .... .... .... . . . . . ... . ... .... .... .... .... 3.39 2.49 2.1'7 8.05 . . . . . . . . . ... .... .27 2.33 8.38 10.98 1'7.14 18.69 106.16 141.99 1.86 .15 '7.80 9.81 .12 .• 16 . . . . .28 . ... . ... . . . . .... . ... . . . . . ... . ... .... . ... .... .... 1.29 .11 1.40 . . . . .... '7.09 29.29 '72.81 109.19 .03 .03 

46.4& 80.6~ 158.46 296.6'1 8.60 10.12 42.36 61.08 

24.3'7 5'7.08 224.26 305.'71 16.28 16.25 106.15 138.68 

113.20 266.1f'7 '104.1& l,OU.62 26.74 27.09 156.31 210.14 -· 

Uinta .2.ett 

'·.18 ··:29 9.16 9.34 .... . ... 3i:o4 • .. ••• 38.18 38.47 .... :n.o4 5.87 .... 61.88 67.'16 5.78 .... 68.60 74.38 6.74 . ... 85.94 92.68 '1.01 . ... 101.54 108.55 . ... .... 35.39 &5.39 . ... . ... 32.54 32.54 

.5'7 1•55 82.10 84.22 ' .• 48 1.55 83.43 85.46 .32 .'71 28.68 29.71 .48 .99 41.~ 42.80 . . . . 2.80 2.80 .... 2.80 2.80 .... 9.91 34.58 44.49 . .... 9.76 30.14 39.90 . ... 2.2& 8'7.4:6 89,'7~ .... 2.61 88.83 91.4-& . ... .2'7 .... .2 . , .. .... . ... . ... 13.68 14.99 466.17 494.~ 13.75 14.91 480.25 508.91 

!!.!!.2!! Oonntt 

Total 

In beda 14· to 28 1nchee 

thick 

19.23 

6.96 

47.03 

44.07 

.... 

1.57 

10.75 

13.45 

1.76 

6.14 

36.43 

12.70 

57.92 

18.36 

11.86 

47.44 

67.19 

99.80 

46.75 

549.41 

4.46 

.3& 17.71 

16.99 

. ... 

1.62 

.eo 

. ... 

..,., 

. ... 

. ... 

41.91 

• • • • I 3:291 •· ... .... t •••• J 

... :. .3.291 

Townahip total 

.59 . ·.43 20.25 2.11 8.53 1'7.60 17.58 33.29 97.90 211.06 298.49 553.62 .35 a.oa 8.43 

1.09 .4'7 3.13 

46.15 309.19 366.09 35.29 198.41 247.15 

.10 1.86 6.46 .78 13.38 

48.80 68.58 153.81 29.14 132.51 174.15 

58.37 338.07 454.36 

13.54 7.50 39.40 .53 .... 12.39 

50.15 60.'70 158.29 .141.26 256.54 464.99 i46.05 24l.M 487.29 90.34 347.75 484.84 

898.96 2,310.76 3,'759.13 

36.03 40.49 .8'1 1H.25 115.45 . ... 193.74 211.45 . ... 228.7a 245 •. 71 . .... 113.73 113.73 

•• 66' 243.40 249.67 1.70 89.83 92.33 

·-· .. 8.40 S.40 

29.58 100.2-l 129.'79 6.91 257.66 2,64.&7 .54 . ... e54 

44.25 1,385.9? 1.472.13 

.40.- .... .40 3.66 .... 6.95 8.66 . ... 2.66 -2.23 .... 2.23 

1.19 .... 1.19 

10.14 . ... 13.43 

6,491.15 
0 to 1,000 teet overburdeD 

'l'ownahip In bed• 14 to 28 'fotal .1no!Mie 

thick ---~-~~ 

!.21B., R.7'1W. . . . . .... .75 .75 r.au., R.7ew. .... 2.49 2.49 'lo2U., Ro71iM. 1.38 1.38 !.191'., R.85W. 1.10 .M 1.1:5 2.57 'lol9B., R.8R. .17 . . .. .68 .85 

t.a&B., a.aa. .... . ... 1.89 1.89 'f .l:SB., R.8'7W. .... .3:5 ~:5 

'f.1n., a.eew. .... .91 .91 'fol:5B., R.88W. .... .:53 .33 '1'.121'., R.81iM. .... . ... 4.88 4.88 

U) '!'.liB., a.aw. .... .3:5 . ... .:5:5 -..J !old., a.SiiM. .... .68 2.0:5 2.71 'lol4Bo 1 fto9011o .... . ... .45 .45 

Cout7 total 1.27 3.:59 15.21 19.87 

'1".25B •• a.llH. .... 'fo&7B •• R.ll&W. . . . . .62 2.79 3.41 '1'o25B.,R.ll6W. .... .... . ... . ... 'f.SO.,R.llH. .... .... 'fol50o,Roll6Wo . . . . . . . . .68 .68 

'1'.&71'. ,R.ll8. . ... .74 4.06 4.80 'fol91fo,Roll7Wo .... 4.86 4.86 '·'f~&llJ. ,R.ll '7W. . . . . .M .... .34 

'1'.:50 • .,R.ll8W. . . . . .M . ... .34 

Oount7 total . . . . 2.04 12.39 14.43 

'fo:5U.,R.llH. 

'fo:5:5B.,R.U~. 

Co\mt7 t;otal 

'fable e.--Interred or1s1D&l reeervee ot bituainoue coal 1n W7a.ing 

( 1n a1ll10D8 ot Ulort tou) 

1,000 to 2,000 teet overburdeD 2,000 to :5,000 teet overburdeD 

In bade In bede 

14 to 28 Total 14 to 28 'fetal 1ncbee 1nabee thick thick 

~ CoUDtz 

. . . . . ... . ... . ... . ... . ... . . . . . ... . . . . .... . ... . ... . ... . ... .... .15 .... .15 .... . ... .... . ... .... .... . ... . ... . ... . ... .... . ... . . . . .... . ... . ... . . . . . ... . ... . ... ..... .... . . . . . ... . ... . ... . ... . ... .... . ... .... . ... . ... . ... . ... . ... . . . . . ... . ... . ... . ... . ... . ... . ... .... . ... . ... . ... . ... .... . ... . ... . ... . ... . . . . . ... . ... .... . ... . ... . ... . ... .... . ... . ... .... . ... .... . ... . ... . ... . ... .... . ... . ... .... . ... . ... . ... . ... . . . . .... . ... .... .15 . ... .15 . . . . . ... . ... . ... 

~County 

.... . ... . ... . ... . ... . ... 4.33 4.3:5 .... . . . . .... . ... . ... . ... 3:52 .... . ... . . . . . ... . ... 3.52 

. ... .... .33 .33 . ... . ... 26.35 26.35 .... .... . ... . ... . ... . ... . ... .... .... . ... . ... .... . ... . . . . .... 4.32 4.32 . ... . ... 3.78 3o78 .... . ... . ... . ... . ... . ... .... .... . . . . . ... .... . ... . ... . ... .... . ... . . . . . ... 4.65 4.65 . ... . ... &7.98 37.98 

Sublette~ 

Total 1n all overburden categoriee 

In bede In bede Township 14 to 28 IBOZ'e than total 1nohee 42 1ncbee thick thick 

. ... .... .75 .75 

. ... 2.49 2.49 

1.5:5 1.5:5 

lolO .:54 1.1:5 2.57 

.17 .... .68 .85 

. ... 1.89 1.89 . ... ·.33 .33 . ... .91 .91 .... .33 •:88 .3:5 . ... . ... 4.88 

.... .33 2:oi .:53 . ... .68 2.71 .... . ... .45 .45 

1.27 3.54 15.21 20.02 

. ... 4.33 4.:53 . ... .62 2.79 3.41 .... . ... 3.52 3.52 . ... . ... 26.68 26.68 . ... .... .68 .68 

. ... .74 4.06 4.80 . ... 12.96 12.96 . ... .M . ... oM . ... .34 . ... oM 

.... 2.04 55.02 5'7.06 

.64 

.96 

1.60 
(A) 

(),) 

0 to 1,000 feet overburden 

In beda Township 14 to 28 Total inches 

thick 

'1'.201. ,R.lOlW. 2.18 .... 2.18 '1'.211l.,R.l01W. 1.03 2.'12 .... 3.'75 T.22J.,R.l01Wo .... '1'oSOI.,R.l02W. 2.11 .10 2.21 'f .211. ,R.l02W • 10.58 22.'72 19.59 62.89 

'1' .22Ji. ,R .102W. .04 9.11 2'7.26 36.41 'f.23B.,R.l02W. .... '1' .2111. ,R.l03W. '7.'12 3.21 10.93 T.221.,R.lOR. 6.83. 22".4'7 380.48 409.'78 'foUl. ,R.l03W. .... . ... . ... . ... '1'.2U;,R.l04W. ·.o9 .... .• 09 '1'.22JJ.,R.104W. 1.46 .... 126.62 12'7.98 T.23B. ,R.l04W. 2:io .... '1'.16li.,ft.106W. .06 2.16 T.l'71.,R.l06Wo 2.36 '7.82 4.13 14.31 

T.181.,ll.105W. 8.68 .79 3.94 13.31 '1'.19JJ.,R.105W. 6.62 .... . ... 6.62 T.20Jf. ,R.106W. .... . ... . ... . ... T.211f.,R.105W. .... . ... . ... . ... '1'.22JJ.,R.105W. .... . ... . ... . ... T.l'1Jr. ,R.1061J. .... . ... . ... . ... 'l'.lBB.,H.lOOW.· .... . ... . ... . ... '1'.19JJ.,R.l061J., .... . ... . ... . ... Coull\)' totU 43.98 73.51 565.13 682.62 

Table 6.--Interred original reserves of bituminous coal in Wyoming 

(in .tllions of ahort·tons)--Cont1nued 

1,000 to 2,000 feet overburden 2,000 to 3,000 feet overburden 

In beds In beds 14 to 28 Total 14 to 28 Total 1ncbee inches thick thick 

Sweetwater Countz 

12.62 .-&3 13.05 . ... '72.86 28.'7'7 35.40 13'7.03 65.56 19.3& . ... 84.92 

.90 .34 1.24 24.81 3.99 . ... 28.80 2.83 .2'7 1.16 4.26 .... 29.26 103.39 63.22 195.8'7 11.30 10.68 .... 2i:9e 

35.97 149.'79 89.51 2'75.2'7 30.80 82.26 252.45 365.51 . ... 4.86 2'7.54 32.40 

.o8 .14 2.83 2.45 .... 5.11 23.29 210.09 238.49 .... 3.24 1a:a6 21.60 .... . ... 1'1'1.84 1'1'7.84 . ... '13.'11 425.88 499.59 

10.92 13.08 36.65 60.65 23.40 20.50 '1'7.'74 121.64 1.4'7 1.96 244.23 247.66 .48 44.64 252.51 297.63 

····· 18.72 18.72 . ... 24.30 137.70 162.00 8.29 8.29 .... . ... 31.68 17.'71 2.66 52.05 .38 .... . ... .38 

23.08 46.9'7 64.31 134.36 4.44 18.49 28.54 51.4'7 23.56 16.28 3.34 43.18 60.21 63.30 117.54 241.05 9.36 16.'78 13.69 39.'73 41.94 49.99 110.48 202.41 . ... .... . ... . ... 1.18 5.53 5.2'7 11.98 . ... .... . ... . ... .o8 . ... . ... .o8 

3.95 1.40 . ... 5.35 3.12 3.12 4.12 5.02 . ... 9.14 22.57 22.82 35.87 81.26 . ... . ... . ... . ... 4.21 .'74 7.61 12.56 

2J~ '----~25.6~ ~-962.95 1,664.~3 294.48 448.41 1,497.49 2,249.38 

~County 

Total in all overburden categories 

In bede In bede In beds Township 

14 to 28 28 to 42 110re then total inches inches 42 inches thick thick thick 

14.80 .43 15.23 139.45 50.85 36.40 225.'70 

25.'71 4.33 30.04 

4.94 .37 1.16 6.4'7 51.14 136.'79 82.81 2'70.'74 

66.81 241.16 369.22 6'7'7.19 

4.86 :.:1'7.64 32.40 .o8 '7.86 5.44 13.38 

11.94 49.00 608.93 669.8'1 . ... 73. '11 603.'72 6'7'7.43 

34.41 33.58 114.39 182.38 

3.41 46.60 623.26 6'73.2'7 

24.30 156.42 180.'12 

10.39 .06 10.45 34.42 25.53 6.79 66.74 

36.10 66.26 96.'79 199.14 90.39 '79.58 120.88 290.85 51.30 66.'77 124.0'7 242.14 

1.18 5.53 5.2'7 11.98 

.08 .... . ... ·.o8 

'7.07 1.40 8.4'7 26.69 27.84 "35.87 90.40 4.21 .'74 '7.61 12.56 

614.52 94'7.54 3,025.5!_ 4,58'7.63 

T.38If.,H.ll611. f .2s! .... 1 ····! .261 ····! .... J ····I ····1. ... .. j ····I ····I .... 1 '.as! ::;;r · .::.J .26 

'1'.451., R.61W. 'l.451f., R.62W. !.461., R.62W. 

Count,- t~ 

'l'otal 

2.11 

t.92 

4o28 

llo3l 

3.32 

3.32 

2.11 

8.2t 

4.28 

14.63 

!!!!29 County 

2.11 

4.92 

4.28 

11.31 

3.32 

3.32 

2.11 

8.24 

4.28 

14.63 

4,681.20 
'fowuhlp 

'ro&Oif ... R.'71W. 1'.511., R.'71W. ~.&OJ., R.'7n. 'l'.&a., a.'7n. 'f .&211., a~'72W. 

Co\mt7 toaal 

!.801., a•=• ! .• 211 •. , a. • 'l.SU., R.81W. ,.2a1., a.81w. !.281., ...... 

Count7 total 

!.S3B., R.'lR. 

!.HB., a.'7,W. (:.) 'f.a& •• , R.'74W. (() ~.&6B., R.'1511. !.HB., a • .,.. 

~t7 total , 

'f.&SB. 1 R.981'. 

T.34B., R.98W. 

O~t7 total 

'·"··• a.9ft. '·"1., B.tR. ~.4.U., •• , ... 

o0Unt7. total 

'f.2lB. ,R.1161J. 

T.20B.,R.l1'1W. 

C0unt7 total 

,,~ •• a.Mw. ~.5'1B., B.NW. 

~-8'11., Jl.861J. •681'.. a.85W. 

Qmmt7 tfial 

0 to 1,000 teet overburclen 

I'D beda I'D bella In beda 2 l/8 to & to 10 more tllan 'fotal 5 teet teet 10 teet thick thick thlolt -· 

..... . ... 153.6'7 153.6'7 .... . ... 20.&6 20.&6 . ~ .. . ... 13.88 u_.ea .... 609.91 809.91 .... . ... 32.60 32.60 

.... . ... BS0.42 eso.'2 

~·· .• '14 .'1<& .35 .99 2.5'1 3.91 . . . . 4.98 24.36 lii9.H .... .'19 .'19 . . . . 1.50 16.44 1'1.94 

• '.35 '1.4'1 44.90 52.'12 

'.40 .... ····· '.40 .51 .... -.51 .51 .68 1.19 .... 1.00 1.00 • 33 .... . ·.a~ 

1.'15 .-.68 1.00 3.43 

~ ~- .... 1."12 .... lO.tt 1.98 20.15 .... -l.o8 . ... 1.08 

a.ee 1'7.11 l.H 22.116 

---

~able '7.--lleaaured origlD&l n•ern• ot nb-bltuainous ooal in W,OIIing 

( 1D 111111op ot abort tona) 

--- ~ -

1 1 000 to 2,000.teet overbal"den 2,000 to s,ooo teet onrb\U"den 

I'D beda I'D beda In beda I'D beda I'D bella I'D beda 2 l/2 to 5 to 10 1110re tkan 'fotal 2 1/2 to & to 10 •ore t:tum Total 5 teet teet 10 teet 5 teet t .. t 10 teet thick thick thick thick thick thick -- ·-- -

Caapbell County 

.... .... . ... . ... .... . ... .... . ... . . . . . ... . ... . . . . .... . ... . ... . ... . . . . ... . . . . ... .... . ... .... .... . ... .... . ... . ... .... .... . ... .... . . . . .... . ... .... . ... . . . . . ... .... . ... ..... ····· . . . . .... .... . ... .... . ... C&l"bon County 

. . . . . ... .... . . . . .... . ... .... .... . . . . .... . . . . . ... . . . . . . ' . .... - .... . . . . . . . . . ... . ... . . . . .... . ... . . . . .... . ... . ... .... .... . ... . ... .. . . . .... .... . ... . . . . . . . . . ... . ... . ... .... .... .... . ... . . . . .... .... .... ~County 

.... . ... . ... . ... .... . ... .... . ... .... . ... . ... . ... . . . . . ... . ... .... .... . ... . ... ....... . ... . ... . ... . ... . ... . ... . ... ... · .. .... . ... . ... .... . ... . ... .... .... . ... .... .... . ... .... . ... .... . ... .... .... . ... . ... ~County 

-.!!!!! ~ County 

. . . . ··:-as .... .... . . . . . ... . ... . ... .... .... .89 . . . . . ... . ... .... . . . . .... . . . . . ... .... . . . . . . . . . . . . .... ·.89 . ... .89 . ... •"••• .... . ... LlncolD·County 

Sheridan Countz 

.... 8.72 2<&6:22 t) 

.-----..i.Ji.o .... .... <&0.20 28&.,. .... . ... l08.Ba 108.21 .... . ... 1.44 1.44 

.... ~2.92 35,.89 ~_!_.81-

....... 

~otal ln all overburden 

oategorl .. 

I'D bella :tn beds In bella ~011D11hlp 2 1/2 to & to 10 more than total 5 teet teet 10 teet thldt thick thick 

. ... . .... 153.6'7 1~.6'7 

. ... . ... 20.36 20.S6 . ... . ... 1~.88 ~.88 

. ... . ... 609.91 -~ . . . . . ... aa.eo _._.eo, . ... . ... BS0.42 uo.o~a 

··:i9 I o'll '~.'1, 

I ·.35 2.5'1 3.91 .... 4.98 24.~e 29.H .... . :. '19 - .'19 . ... 1.50 16.44 l'l.N 

·.35 ~.4'1 44.90 62.'72 

.40 . ... . ... .<&0 .51 . ... •&1 ·.51 .68 1.19 . ... 1.00 1.00 .33 .... . ... .sa 

1.'15 .68 1.00 S.43 

13.98 

'7.'1a 

21.'11 

1.65 1 ·.o'l 1.'18 2.24 6.~ 1.98 .21.0<& . ... 1.08 . ... 1.08 

3.89 18.00 i.95 23.84 

_88.1'1 

141.2'1 

229.44 

2.'121 245:22 2.'12 40.20 285.42 108.23 108.2S 1.44 1.44 

42.92 554.89 S9'1.81 

1,559.3'1 
Table a.--Indicated orif1:a~~~~:::e~fo;~~~-~!!~nous coal 1n Wyoming 

0 to 1,000 feet overburden 1,000 to 2,000 feet overburden 2,000 to 3,000 feet overburden Total in all overburden categories 

Townahip Inbe4o1Inbedo1Inbe4o i In.... lin .... lin .... ·I In •.•. li' •.•. r· .... In beds In beds In beds Township 2 l/2 to 5 to 10 more than Total 2 1/2 to 5 to 10 more than Total 2 l/2 to 5 to 10 more than Total 2 1/2 to 5 to 10 more than total 5 teet teet 10 feet 5 feet teet 10 feet 5 feet teet 10 feet 5 feet feet 10 feet thick thick thick thiek thick thick thick thick: thick thick thick thick 

A1banz ~l!!:z 

T.li!OJI., R.'16W. . 49.31 22.32 .... '11.63 2'1.62 16.09 . . . . 43.'11 15.89 12.90 . ... 28.'19 92.82 51.31 . ... 144.13 '1'.1911., R.'1'7W. 4.20 32.46 .... 36.66 4.30 13.1'1 . ... 1'1.4'1 .'15 . ... .75 9.25 45.63 . ... 54.88 Te2011., R.'1'7W. 2.14 26.66 .... 28.80 1.80 19.'15 . ... 21.55 1.50 3.25 . ... 4.'15 5.44 49.66 . ... 55.10 

Count,- total 55.65 81.44 .... 13'1.09 33.72 49.01 .... 82.73 18.14 16.15 . .... 34.29 10'1.51 146.60 . ... 254.11 -~ .. -· 

l!i& !!2m CountY 

5.13 

8.91 

--

14.04 

Campbfll1 Countz 

T.41R., R.69W. 3'1.44 6.55 15.09 59.08 . . . . .... .... .... .... .... . ... . ... 3'1.44 6.55 15.09 59.08 

""' 'l'o42JI. 1 R.69W. 25.'15 15.39 26.'17 67.91 .... .... . ... .... .... . ... .... . ... 25.75 15.39 26.77 67.91 0 T.43lf. 1 Ro69W. 3.98 .... . ... 3.98 . ... .... .... . ... .... .... .... . ... 3.98 . ... . ... 3.98 

To4U., R.69W. 51.7'1 .... 51.'17 . ... .... .... . ... .... . ... .... .... 51.77 . ... 51.'1'1 

To45N., R.69W. 35.32 .... 68.15 103.4'1 . ... .... . ... . ... .... .... .... . ... 35.32 . ... 68.15 103.4'1 

To46R., R.69W. .... 88.10 88.10 . ... .... . ... . ... .... .... .... . ... . ... 88.10 88.10 

'1'.4'111., R.69W. 4.51 .... .9'1 5.48 . ... .... . ... . ... .... .... . ... .... 4.51 . ... .9'1 5.48 

To48B., R.69W. .95 .... .. ·.ss . ... .... . ... . ... .... .... .... . ... .95 . ... .95 

'1'.4111., R.70W. . . . . . . . . 206.56 206.56 .... .... . ... . ... .... .... •••'• -···· .... . ... 206.56 206.56 

T.42J., R.'10W. .... . . . . . 233.11 233.11 .... .... .... . ... .... .... .... . ... . ... . ... 233.11 233.11 

'1'.44.1., R.'10W. 1.98 . . . . 134.8'1 136.85 . ... .... . ... . ... .... . ... .... . ... 1.98 . ... 134.8'1 136.65 

T.45B., R.7011. 3.58 .... 246.92 250.50 . ... .... . ... . ... .... .... . ... . ... 3.58 . ... 246.92 250.50 T • .f.61., a.7ow. 2'17.'16 2'1'1.'16 .... . ... . ... . ... .... . ... .... . ... 27'7.'16 2'1'1.'16 

'l'o47R., Ro'10W. .82 1.99 2.61 .... .... . ... . ... .... . ... . ... . ... .82 1.99 2.61 

'1'.46:1., R.70Wo 1.26 35.'79 14.6'1 51.'1'2 .... .... . ... .... .... .... . ... . ... 1.26 35.'19 14.6'1 51.72 

'l'e49R., R.70W. 4.18 9.85 46.915 60.98 .... .... . ... . ... .... .... . ... . ... 4.18 9.85 46.95 60.98 

T.ISOK., R.'10W. ' .40 . . . . • 40 .... .... . ... . ... .... . ... .... . ... .40 . ... .40 

'l'of.lR., Re71Wo .66. 235•50 236.16 .... . ... .... . ... .... .... .... . ... .66 235.50 236.16 

'1'.46lf., R.71W. 11.68 19.91 .2:·48 31.59 .... .... . ... . ... .... .... . ... . ... 11.68 19.91 31.59 

T • .f.6K., R.'11Wo .... 1.33 43.81 .... .... .... . ... . ... .... .... . ... . ... 1.33 42.48 4.3.81 

'1'.4811., R.'11W. ·.sa 131.26 .82 132.~6 . . . . .... . ... . ... . . . . . ... . ... .... .88 131.26 , .as 132.96 

'1'o49K., R.'11W. 21.68 43.51 414.17 4'19.36 ..... .... . ... . ... .... .... . ... . ... 21.68 43.51 414.1'1 479.36 

'1',5011., R.'11W. .... 54.46 1,215.66 1,2'10.10 .... .... .... . ... . ... .... .... . ... .... 54.45 1.215.65 1.270.10 

'1'.5111., R,71W. .... 14'7.51 14'1.51 .... .... . . . . . ... . ... . ... . ... .... .... l.f.'1.51 147.51 

'1'.52R., R.'11W. .... 1.'15 .... 1.75 . ... .... .... .... .... . ... .... .... ..... 1.75 . ... 1.'15 

To5311., Ro'11W. 43.45 21h91 .... 70.36 .... .... .... .... .... .... . ... .... 43.46 26.91 . ... '10.36 

To5511., R,;'11W. 8.86 8.86 .... .... .... .... . ... .... . ... .... 8.86 8o86 

T.56B., R.'11Wo 25.35 3.'1V 52.02 81.14 .... .... .... .... . ... .... .... . ... 25.36 3.7'1 52.02 81.14 

'1'.5'1lf., R.71Wo ·.61 .40 4.53 5.44 .... .... .... . ... .... .... . ... .... .51 .40 4.53 5.44 

'l'o5BJI'., Ro'11W. .... 6.50 15.25 21.'115 .... .... .... .... .... .... . ... .... .... 6.50 15.25 21.'15 

To41JI., R.'12W. 3.98 14.56 . . . . 18.54 .... .... .... .... .... .... .... .... 3.98 14.56 . ... 18oM 

To42ll., R.'12W. .... 16.53 16.53 .... .... .... . ... .... . ... .... . ... .... 16.53 16.53 

'1' .4311. 1 R. '12W • 30.32 145.26 175.58 .... .... .... . ... .... .... . ... .... 30.32 145.26 1'15.58 

T.f.411., R.72'1i. 21.'1'1 46.84 7'1.00 145.61 .... .... . ... . ... .... .... . ... . ... 21.7'1 46.84 77.00 145.61 

'1'.4511. • R.'72W. 85.19 49.41 68.34 202.94 .... .... .... .... .... . ... . ... .... 85.19 4.9.41 68.34 202.94 
'f.4u., .a.'1n. 38.68 94.81 4.6& 138.24 . . . . . ... . . . . ..... .... . ... . ... . ... 38.68 94.91 4.65 138.24 

'f .4"'JJ.' .R. '7811. 9.29 52.9'1 36.25 9'1.51 .... . ... .... .... .... .... . ... . ... 9.29 52.9'7 36.25 9'1.51 

'f.t811., Ro'7lilre .... .... 184.48 184.48 . ... . ... .... .... . . . . .... . ... .... .... . ... 184.48 184.48 

'f.4n., .a.,.. . . . . 222.60 222.60 .... . ... . ... .... . ... .... . ... .... . ... 222.60 222.60 

'fo60io 0 Ro'12'l'o . . . . 41.98 566.20 608.18 . ... . ... .... .... .... .... . ... .... .... 41.98 566.20 608.18 

'!.511., a • ., •• tl ••• 926.16 926.16 .... . ... . ... . ... . ... .... . ... .... 926.16 926.16 

'f.52J., 1.'1211. 1.'10 3'1.04 241.11 2'19.85 .... . ... .... .... . ... .... .... .... 1.'70 37.04 241.11 279.85 

'f.5U., R.'1BW. 5.8'7 28.26 13'1.40 1'71.53 .... . ... .... .... . ... .... . ... .... 5.87 28.26 13'1.40 1'71.53 

'f o541o, Ro 'l'2W o 88:7o '1.91 '7.91 .... . ... .... .... . . . . .... . ... .... '1.91 7.91 

'!.551., B.'lft.; 90.73 18.20 137.63 . . . . . . . . . ... . . . . . ... .... . ... .... 28.'10 90.'13 18.20 13'1.63 

'f .561.' •• "1iW. 116.&2 224.14 92.40 ~.86 .... ..... .... .... . . . . . ... . . . . . ... 116.32 224.14 92.40 432.86 !.5"'JJ., •• ., •• 124.60 18'1.90 2.50 315.00 . . . . . . . . . ... . . . . . ... .... . ... .... 124.60 187.90 2.50 315.00 

'f.U.., B."TiW. 45.10 92.80 3.30 141.20 . . . . . ... . . . . . . . . . ... . . . . . . . . .... 45.10 92.80 3.30 141.20 'f.t11., •• ., •• 1.18 . . . . 1.12 . . . . . ... . . . . . ... . ... . ... . ... .... 1.12 .... .... 1.12 

'fo42J., B.'lSW. . . . . 148.24 . . . . 148.84 . ... . ... . ... . . . . . ... . . . . . ... . . . . . . . . 143.24 .... 1t3.24 

!.49., B."'SW. 56.62 45.M 21.'15 123.81 . . . . . . . . . ... .... . ... . . . . . ... .... 56.52 t5.54 21.7& 123.81 '1.441., •• , •• 60.08 142.~~ 20.66 213.36 .... . . .. .... . ... .... .... . . . . . ... 50.08 142.62 20.66 213.36 'fo461., B.'IR. ae.38 33.39 149.80 269.57 .... . . . . . . . . . . . . . ... .... . ... . ... 86.38 33.39 149.80 269.5'1 'f.46W •• a.'law. 5.3'1 106.3'1 ..... 111.'14 . . . . .... .... . ... . ... .... . ... .... 5.3'1 106.37 . ... 111.'1t 

'f.t'nl •• B.'ISI. .. . . '15.11 . . . . '15.11 . ... . . . . . ... . ... . . . . . . . . . ... . . . . .... 75.11 .... 75.11 

'1.481f. • B.'1a11. . . . . 4.42 88.'1'1 93.19 . ... .... .... . ... . ... . . . . .... . ... ..... 4.42 88.7'1 93.19 '1'.49J., •• ., •• . . . . 22.10 22.10 . ... . . . . . . . . . ... . ... .... . ... .... ..... 22.10 22.10 !.&011., a.VR. . . . . 54.40 334.90 389.30 . . . . . . . . .... . ... . ... . ... . ... . ... .... 54.40 334.90 389.30 '!.511 •••• .,.. 69.10 59.10 . . . . . ... . ... . ... .... .... . ... . ... 59.10 59.10 !.6311., R.'IR. 56.'10 45.~ 248.57 350.60 . . . . . . . . . ... .... . ... .... . ... . ... 56.'10 45o33 248.57 350.60 

'.P.MJr. • R.'I&W. 1.84 ~~:: 125.25 14'1.&1 .... . . . . . ... ~ ... . ... .... .... .... l.M 21.00 125.25 14'1.59 

'l.55W., R.'1R. 16.92 155.42 183.96 . . . . . . . . . . . . . . . . . ... .... .... . ... 16.92 11.62 155.42 183.96 

'!.561., R.7&W,; &1.60 329.'10 394.30 . . . . .... . ... .... . ... .... . ... . ... 64.60 329.70 394.30 

!.5'1lf., B.'IR. 20.10 258.80 11.30 290.20 . . . . . . . . . ... . ... . ... .... . ... .... 20.10 258.80 11.30 290.20 

'.P.58JI., R.'IH. 7 .6Cl let.1S 30.20 221.93 .... . ... .... . ... . ... . . . . . ... .... 7.60 184.13 30.20 221.93 

!.411., R.'1ft. 3.06 . . . . 3.05 .... .... . ... . ... . ... .... .... . ... 3.05 .... 3.05 ,. !.421., •• ., ... 24.0~ 56.'11 .... 80.'14 . ... . . . . . . . . . ... . ... .... . ... .... 24.03 56.71 .... 80.'14 ..... !.431., R."14W. 16.52 . . . . 16.52 . ... . . . . . . . . . ... . ... .... . . . . .... 16.52 .... 16.52 

!.441., B.74W. 3.96 3'1.95 .... 41.81 . ... . . ... . ... . ... . ... . . . . .... .... 3.96 3'7.95 .... 41.91 

'f.-451., R.'14W. 40.60 10.3& .... 50.92 . ... . . . . . ... . ... . ... .... . ... .... 40.60 10.32 .... 50.92 

'lo461J., llo'14Wo 22.84 6.~ . . .. 29.'1~ . ... . . . . . ... .... . ... .... . ... .... 22.84 6.88 29.72 

'f.4'1lf., R.'14W. 1~:~ 3:::~ 2.'75 2'1.36 .... . . . . .... . . . . . ... .... . ... .... 15.63 8.98 2.75 2'1.36 

'1'.&31., R.'14W. 360.04 533.36 .... .... . ... . ... . ... .... .... .... 133.'11 39.61 360.04 533.36 

'f.Mlf •• R.74W. 108.36 50.3"1 134.89 293.62 .... . . . . . ... . ... . ... .... .... .... 108.36 50.3'7 134.89 293.62 

'1'.55lf., B.'14W. 85.02 78.02 11.13 174.1'1 .... . . . . . ... . ... . ... . . . . .... .... 85.02 '78.02 11o13 1'1-4.17 

!.461., Jl.751J. 14.14 42.50 5aa:73 56.64 .... . . . . . ... . ... . ... .... . . . . .... 14.14 42.50 56.64 

'1'.5211., R.7R. 53:89 4-~: 535.65 .... .... . ... . ... . ... . . . . . ... .... 4.92 530.'73 535.65 

!.ssw •• R.'IH. 1.5 M5.98 601.46 .... . . . . . ... . ... . ... .... .... .... 53.89 1.59 545.98 601.-46 

'!.MI., R.'75W. 3'1.'1~ -42.1! 2U.68 321.60 .. .,. .... . ... .... . ... . ... .... .... 3'1.71 42.11 241.68 321.50 

'1'.651J •• R.'IH. 5'1.89 134.99 15.12 208.10 .... . . . . . . . . . ... . ... .... .... .... 5'7.99 134.99 15.12 208.10 

'1.611., •• , •• 3.~ . . . . . ... 3.30 . . . . . . . . . ... . ... . ... .... . ... ..... 3.30 .... .... 3.30 

'f ........ ., •• 64..21 w:a; . . . . 64..21 . . . . .... .... . ... .... .... . ... .... 64.21 90:87 64.21 

t.&a •••• ., •• . . . . 109.19 200.16 .... . ... . ... . ... . ... .... .... .... .... 109.29 200.16 

!.&H., R.'76W. ..... 130.~ . . . . 130.38 . ... .... . . . . . ... . ... .... .... .... 130.38 ~8:i2 130.38 

!.54 •• , Ro'16W. e.eo 28.12 34.98 . . . . . . . . .... . ... .... . ... . . . . , ... 6.8() 34.92 

'!'.ssw •• a • ., •• 1s.e2 · 90.83 . . . . 106.45 . . . . . ... . ... . . . . . ... .... .... .... l5.tJ2 90~83 . .... 106.45 

Count7 total 1,'168.92 3,392.15 9,"19'1.86 14,958.83 . . . . . . . . . ... . . . . . ... .... .... .... 1,'168.92 3,392.15 9,797.86 14,958.93 
0 to 1 1000 feet overburden 

'lotm8hip In beda 

2 1/2 to 'lotal 5 teet 

thick 

!.liB., R.'7?W. :5.1:5 .6'7 a.ao 

'!.BOB., R.'19W. 1.6'7 1.6'7 !.211., R.'79W. 18.13 39.85 5.4'7 63.45 t.so •• , a.aow. 5.48 5.0'1 8.19 18.74 'f.21JI. 1 a.aow. 90.24 42.75 40.22 173.21 

!.221., R.SOW. 15.05 18.23 .60 33.88 '!.29., R.SOW. 51.1:5 88.17 .... 139.30 '!.241. 1 R.SOW. .49 .... . ... ' .49 '!.211., R.81W. 3.43 3.43 T.2:inl. 1 R.81W. 60.88 94.61 276.10 431.59 

'!.29., R.81W. 88.18 131.39 117.98 33'7.55 T.20. 1 R.81W. 7.63 5.02 12.66 !.211., R.82'1. 3.95 1.53 .46 5.94 !.2211. 1 R.82W. 58.73 98.24 49.28 206.25 T.231. 1 R.821'. 11,58 13.52 .65 25.75 

T.20o 1 R.82W. 5.91 5.75 .... 11.66 '1'.211J., R.83W. .71 .71 

"'" !.2211. 1 R.83W. 50.52 128.34 14.'73 193.59 

t\J T.ial., R.83W. H.3'1 41.80 16.8'1 15'7.54 T.241J. 1 R.83W. 45.09 65.52 8.19 118.80 

!.21B.; R.84W. .60 .60 T.221J., R.84W. 4.69 5.91 7.01 1'1.61 T.BaJJ., R.84W .. 26.94 63.0'7 129.'7~ 219.'75 !.241. 1 R.84W. 9.59 5.76 .... l5:C '!.2211., R.851r. .50 .... .... '!.2311., R.85W. • 1b . . . . .'70 T.20JJ., a.eew. 6.28 . . . . 6.28 T.211. 1 a.eew. 3.45 2'7.49 .... 30.94 !.1101. 1 R.89W. 94.44 .... 94.44 '!.2111., R.89W. 10.31 45.90 .... 56.21 -· . --

!.2211. 1 R.89W. ;45 .98 . . . . 1.43 !.1'111., R.91W. 13.46 . . . . 13.46 !.1811., R.91W. 11.'78 132.95 . . . . 144.'73 

!.l9R., R.91W. .... 61.99 . ... 61.99 

'!.181. 1 R.921'. . ... 4.85 4.86 

\'.191., R.921'. . . . . 109.86 -Ioo::a? 210.13 

-.Collnt7 total 68'7.18 1,355.36 '776.43 8,818.9'1 

'lo33JI., Ro6'1Wo 1.38 .... .... 1.38. 

'l.341J. I R.6'7W. 22.62 .... . ... 22.62 T .36 •• I R.6'1W. 52.38 . . . . .... 52.~ 

T.36Jt., R.6'7Wo 9.99 .... 9.99 '!.3811., R.6'7W. 1.3'7 9.'78 .... 11.l:i 

To3911., R.6'7W. 8.'75 • 92 . . . . 9.67 

'lo40R., R.6'7Wo ·.25 .... . . . . .26 

Totll., R.6'7W. 

~:= .... i:57 5.91 To32J., !'lo68tfo ·:· 4.41 -'!.331 •• a.68tf. 8.19 .... 8.4'7 

Table e.--Indicated original reserves of sub-bituminous coal in Wyoming 

(in m11110Qs ot ahort tons)--Continued 

1,000 to 2 1000 f~t overburden 2,000 to 3 1 000 feet overburden 

'l'otal- Total 

~County 

.... . ... . ... •'••• . . . . .-~ .. . ... .... .... .... . ~ .. . ... . ... .41 13.38, .... 13.79 .... .... ····· .... ··:36 .... 1.25 28.04 8.52 37.81 5.44 .... 5.80 

12.98 4.33 .... 17.31 13.55 .61 .... 14.16 

30.70 32.45 - .... 63.15 14.64 16.72 . ... 31.36 

.... .... . ... . ... 3.33 3.33 3.29 3.29 

Total 

In beds 

2 1/2 to 5 feet 

thick 

1.67 

18.54 

5.48 

91.85 

41.58 

96.47 

.49 10.05 -

20.30 33.11 23.71 77.12 16.7'7 2i:is 6.16 46.08' 97.95 

54.97 64.58 84.99 204.54 23.83 20.84 44.12 88.'79 166.98 

.... .... .... . ... 7.63 

.68 -.68 .07 .07 4.70 

42.34 61.:U 38.43 142.08 28.24 37.66 17.29 83.19 129.31 

3.16 4.43 .... '7.59 .... .82 . ... .82 14.74 

5.16 3.68 .... 8.84 4.14 2.90 . ... 7.04 15.21 

.15 .15 .... .86 

18.39 82.85 .• 54 101.78 11.36 60.39 .... '11.'75 80.27 28.73 37.'77 7.92 74.42 14.42 .40 .... 14.82 142.52 17.8'7 12.69 .... 30.56 17.20 5.31- . ... 22.51 80.16 

.... . ... . ... .60 l.?g 1.38 3.17 .50 .... .50 6.98 

19.63 10.64 .13 30.40 1ao .... 1.10 47.67 

6.54 .92 .... 7.46 6.44 .23 . ... 6.67 22.5'7 

.... .... . ... . ... . ... . ... . ... . . . . .50 

.... .... . ... . ... . ... . ... ~· .. . ... .70 

. ... . ... 5.6'7 2.63 .... 8.30 5.86 4.02 . ... 9.88 14.98 

.... . ... ..... 4.00 31.89 .... 35.89 .90 4.69 . ... 5.59 15.21 

.28 .51 .... .79 .21 .32 . ... .53 .94 

.... .... . ... . ... .... . ... . ... .... .... .... . ... . ... .... . ... . ... . ... 11.'18 

.... .... . ... . ... . ... . ... .... . . . . . ... .... . ... .... . ... . ... . ... . ... .... . ... .... .... . ... . ... . ... . ... . ... .... . ... 278.33 426.59 164.24 869.16 162.88 183.50 67.57 413.95 11128.39 

~County 

.... . ... . . . . . ... . ... . ... . ... •'••• 1.38 . ... . . . . . ... . ... . ... . ... . ... . ... 22.62 . ... . ... . ... . ... . ... . ... . ... . ... 52.38 . ... ····· .... . ... . ... .... . ... . ... 9.9'd . ... . . . . . ... . . . . . ... . ... . ... . ... 1.37 

. ... . ... .... .... . ... . ... . ... . ... 8.'75 . ... . ... . ... . ... . ... .... . ... . ... .25 . . . . .... . . . . . ... . ... .... . ... . ... 5.93 .... ..... .... . ... . ... .... . ... . ... 2.86 . . . . . ... . ... . ... . ... .... . ... . ... 8.19 

In beda Township 

more than total 

10 feet thick 

3.13 .67 3.80 

1.67 

53.23 5.47 77.24 

5.07 8.19 18.74 

76.23 48.74 216.82 

23.17 ·.60 65.35 

13'7.34 .... 233.81 

.... .... .49 10.05 

150.87 305.97 554.79 

216.81 247.09 630.88 

5.02 12.65 

1.53 .46 6.69 

197.21 105.00 431.52 

18.77 .65 34.16 

12.33 .... 27.54 

.86 

271.58 15.2'7 367.12 79.47 24.79 246.78 83.52 8.19 1'11.87 

.60 

7.29 . 7.01 21.28 

73.'11 129.87 251.25 6.91 .... 29.48 

. ... . ... .50 

.... .'70 6.28 .... 6.28 34.14 .... 49.12 94.44 . ... 94.44 82.48 .... 97.69 

1.81 .... 2.'75 

13.46 .... 13.46 

132.95 .... 144.73 

61.99 . ... 61<99 4.85 4.85 

109.86 100.27 210.13 

11965.45 1,008.24 4,102.08 

. ... . ... 1.38 .... . ... 22.62 .... . ... 52.38 . ... 9.99 9.78 . ... 11.15 

.92 . ... 9.6'7 . ... . ... .25 . ... i:57 5.93 

4.43 .28 . ... 8.47 
'l'.UB., "R.68W. 22.58 .64 ····· 2:5.22 .... .... . ... . ... . ... .... . ... .... 22.58 .64 . ... 2:5.22 '1'.351f., R.68W. 12.4:5 .... .... 12.43 .... . ... . ... . ... . ... . ... . ... . ... 12.4:5 . ... .... 12.43 'l'o361fo 1 Ro68Wo 25.04 .... 25.04 . ... . ... . ... . ... .... . ... .... .... 25.04 . ... 25.04 '1'.3'7Jr., R.68W. 38.11 8.41 .... 46.52 .... . ... . ... . ... . ... . ... . ... .... :58.11 8.41 . ... 46.52 'l'oHJI., R.681f. 71.71 154.60 .... 226.:51 . ... .... . ... . ... . ... .... . ... .... 71.71 154.60 .... 226.:51 

'f.3~1f., R.68W. 116.88 56.22 2.21 175.:51 .... . ... .... .... . ... .... . ... . ... 116.88 56.22 2.21 175.:51 

'!'o401., R.6BW. 4.8:1 .... .... 4.83 . ... . ... . ... . ... . ... . ... . ... . ... 4.8:1 . ... . ... 4.8:1 

'l'o411fo, Ro68Wo 2.52 .... .... 2.52 . ... .... . ... . ... . ... . ... . ... .... 2.52 . ... . ... 2.52 

'!'.32w., R.6a. 8.60 . ... .... 8.60 . ... . ... . ... .... . ... .... . ... . . . . 8.60 . ... . ... 8.60 

'f.36JI., R.69W. so.os . ... .... so.os . ... . ... . ... . ... .... . ... . ... . . . . :50.03 . ... . ... :50.03 

'l'o37JI"., R.69Wo 63.64 .... .... 63.64 . ... . ... . ... . ... . ... .... . ... .... 63.64 . ... . ... 63.64 '1'.3811., R.;69W. 17.46 .... 17.46 . ... . ... . ... . ... . . . . . . . . . ... . ... 17 •• 6 .... 17.46 '1'.:5~., R.69W. 57.61 26.48 .... 84.09 .... .... . ... . ... . ... . ... . ... .... 57.61 26.48 .... 84.0~ 

'1'.405., R.69W. 38.24 13.05 . . . . 51.29 .... . ... . ... .... . . . . . ... . ... . ... 38.24 1:5.05 . ... 51.29 'ro4llo 1 Ro69Wo 4.12 .... .... 4.12 .... .... . ... . ... . . . . . ... . ... . ... 4.12 . ... . ... 4.18 

'ro:56X., R.70W. 1.55 1.55 .... . . . . .... . ... . ... . ... . ... . ... 1.55 1.66 '1'.401'., R.70W. 37.04 38.8:5 5.75 81.62 .... .... . ... . ... .... . ... . ... . ... :57.04 :58.83 5.75 81.82 T.4lJI"., R.70W. 1.59 4 •• 3 o.oa .... . . . . .... . ... . ... . ... . ... . ... 1.59 ••• 3 6.02 T.391., Ro7lW. 13.28 :59.8:1 63.11 .... . ... . . . . . . . . . ... . ... . ... . ... . ... 13.28 39.8:1 53.11 

'1'.4011"., R.'71W. 5.04 .... 418.96 424.00 . ... .... . ... . ... .... . ... . ... . ... 5.04 . ... 418.96 424.00 

'l'o411f., Ro7lWo 2.26 .... 229.42 231.68 . ... . ... . ... . ... .... .... . ... . ... 2.26 . ... 229.42 231.68 '!'.3211., a.7n. 1.52 .... . ... 1.52 . ... .... . ... . ... . . . . . ... .... . ... 1.52 . ... . ... 1.52 T.ssw., R.7n. • 08 .... . ... .08 . ... . ... .... . ... . ... . ... . ... .08 .... . ... .08 '!'.3711., R.72W. • 28 .... . ... .28 . ... . ... . ... . ... .... . ... . ... . ... .28 ..... . ... .28 '1'.3811., R.72W. 1.96 .... . ... 1.96 . ... .... . ... . ... .... . ... . ... . ... 1.96 . ... . ... 1.~6 

'!'.3~w., a.7n. 7.:50 ea:95 7.30 .... . . . . .... . ... .... . ... .... . ... 7.30 7.30 'f.toll., R.72W. 1.33 30.53 120.81 .... .... . ... .... . ... . ... . ... . ... 1.:53 30.5:5 88.95 120.81 '1'.4n., R.7n. 34.52 34.52 .... . ... . ... . ... 34.52 34.52 'l'o33Jio 1 Ro73Wo 17.08 1.81 .... 18.89 1:5.75 . ... . ... 13.75 4.84 . ... . ... 4.84 35.67 1.81 . ... 37.48 '!'.381'., a.73w. 1.17 .60 .... 1.77 . ... .... . ... . ... .... . ... .... . ... 1.17 .60 . ... 1.77 

T.S9J., Ro73W. 26.42 14.27 .... 40.6~ . ... . . . . .... . ... . ... . ... . ... . ... 26.42 14.27 . ... 40.69 ,j:>. T.401f., Bo7SW. 14.34 18.11 .... :52.45 . ... . ... . ... .... .... . ... . ... . ... 14.34 18.11 . ... 32.45 CAl '1'.351'., R.74W. -2.73 2.38 .... 5.11 . ... . ... . ... . ... .... . ... .... .... 2.73 2.38 . ... 5.11 '1'.361., R.7411. .... 2.76 ·:74 2.76 .... .... . ... . ... . ... . ... . ... . ... 2.76 2.76 '1'.371f., R.741. 16.90 57.29 74.93 .... . ... . ... . ... .... . ... .... . ... 16.90 57.29 .74 '74.93 

'l'o381o 1 Ro74Wo 6.15 .7.76 .... 5:5.91 .... . ... . ... .... . ... . ... . ... . ... 6.15 47.76 . ... 53.91 '1'.391f., R.74W. 25.89 16.74 .... 42.63 .... . ... . ... . ... .... . ... . ... . ... 25.89 16.'P4 . ... 42.63 'ro40JI., R.74W~ 9.29 . . . . 9.29 .... . ... . ... . ... 9.29 . ... 9.2~ 

'1'.3311"., Ro'75W. loSS 1.55 ..... :5.4:5 .68 .... . ... .68 .47 . ... . ... .47 3.03 1.55 . ... 4.58 T.S4JI., Ro75Wo .85 1.21 . . . . 2.06 .... . . . . . ... . ... . ... . ... . ... .... .85 1.21 . ... 2.06 

'l'o351., Ro75Wo 13.57 71.44 85.01 .... .... . ... . ... . ... . ... . ... .... 13.5'1 71.44 85.01 '1'.361., R.75W. 15~'76 '79.19 :5.44 98.3~ .... . . . . . ... . ... . . . . . ... . ... . ... 15.76 79.19 3.44 98..,39 

T.37JI., R.75W. 2.08 72.15 .... '7<&.23 .... .... . ... . ... . . . . . ... . ... . ... 2.08 72.15 . ... 74.23 '1'.3811"~, R.75W. ·.40 50.66 . . . . 51.06 .... . ... . ... . ... .40 50.66 .... 51~06 

'l'o341fo 1 Ro76Wo 6.89 .03 .... 6.92 3.92 .... . ... :5.92 3.40 . ... . ... 3.40 14.21 .03 .... 14.24 

'1'.361. 0 R.76W. loOO .12 .... 1.12 . . . . . . . . . ... . ... . ... . ... . ... ..... 1.00 .12 . ... 1.12 '!'.38Jf., R.'l:6W. 3.70 6.31 .... 10.01 . . . . . ... . ... . ... . ... .... . ... .... 3.70 6.3i . ... 10.01 T.3~N., R.76Ylo 7.04 . . . . . . . . 7.04 .... . ... . ... . ... . ... . ... .... . ... 7.04 . ... . ... 7.04 '1'.401., R.'l6W. .10 .... .... • 10 . ... . . . . .... . ... .10 •4•• . ... .10 'l'oMioa Ro7'1'1. 5.~1 . . . . . . . . 5.91 1.87 .... . ... 1.87 • .69 . ... . ... .69 8.47 . ... .... 8.47 

'!'.39N., R.77W. 12.30 .... . . . . 12.30 . ... . ... . ... . ... .... .... . ... . ... 12.:50 .... . .. 12.30 To40Jfo, Ro'1'1Wo 2.49 . . . . . ... 2.49 .... . ... . ... .... . ... . ... . ... 2.49 . ... . .. 2.49 

c~t7 total 874.11 804.70 829.82 2,508.63' 20.22 .... . ... 20.22 9.40 .... . ... 9.40 90:5.7:5 ~.70 829.82 2,538.25 

.2£221£ County 

T .4~·., R.68W ·I 8.641 ... ·I .... , 8.64_1 ·~·~·I ... ·I ... ·I· ... ·I ... ·I ····I ... ·I ... ·I 8.64, ... ·I .... ·I 8.64 
0 to 1,000 teet overburden 

rn .... lin • ..,, r .... ·1 ToWDahip 2 1/2 to 5 to 10 more than 5 teet teet 10 teet Total 

thick thick thick 

!.M ••• ·a.ew. '1.25 .... . ... 1.25 'l'.MB •• B.90W. 2.65 '.1i . . . . 2.6t 'f.351f •• R.90W. 2.69 .... . . . . 2.69 'f.Mif •• R.9tW. :::: 5.63 15.61 T.Mif •• R.95W. 1.79 5.38 11.79 

'fo331fo • fto96Wo ·:gg .... 'fo331 •• Ro981'o 6.01 .... 7.00 'f.Mif., R.98W. 3.03 • 56 .... 3.59 T. 31., B. lW. • 36 .... .• 36 T. 5B., Ro 1W. .... .92 .... ·.92 

To 61., R. 2W. 4.02 4.08 .... 8.10 T. 61f., R. lB. 3.20 12.25 .... 15.45 T. 61f., R. 2!:. 3.99 .... .... 3.99 T. lS., R. 2E. 1.37 .... .... 1.37 T. 2S., ft, 2E. 3.63 .... . ... 3.63 

To 61., B. 3E. 2.74 .... . ... 2.74 t. lS., R. 6!:. .... T. 28., R. 6E. 3.47 6.18 .... 9.65 

..,.. CoUDt7 total 52.81 32.59 5.38 90.78 ..,.. 

'f.4.1., R.94W. 8.'70 .02 .... 8.72 T.44J., R.95W~ 19.19 11.23 .... 30,.42 '1'.451. 1 R.95W. .03 .... .03 '1'.4411., R.96W. 14.02 3.62 .... 17.64 -T.45JI'., R.96W. • 34 .... . ... .34 

T.t4J., R.9'1W. 6.11 .76 .... 6.87 T.45B., R.9'7W. 15.22 4.90 .... 20.12 '1'.441. 1 R.98W. 13.47 3.00 .... 16.47 '1'.451., R.98W. 6.93 .... 6.93 T.461!f., R.98W. 18.37 1.41 .... 19.78 

!.471. 1 R.98W. .24 .... .... • 24 

T.44N., R.99W. 9.23 .... 9.23 

'1'.45111., R.99W. 2.63 .12 2.75 

'l'.tetr., R.99W. 9.05 5.89 15.15 30.09 

T.47B., R.99W. 1.50 , ... . ... 1.50 

'f.461 •• R.lOOW. . . . . ·.66 .... • 66 

Qount7 total 125.03 31.61 15.15 171.79 

T.t6J., R.761J-o 11.19 11.19 'f.&U., R.'1R. .... 40.44 95.33 135.77 T.53B., R.76W. 52.20 .... 52.2Q 

T.tlJI., R.77W. 3.08 .06 3.14 '1'.421., R.77W. 27.16 13.67 112.37 153.20 

T.43JI. 1 R.77W. • 77 .... .77 T.50J., R.77W. 12.76 128.36 .... 141.12 'fe51Jio 1 fto'17Wo 36.72 . 87.23 .... 123.95 T.52W., R.77W. 20.08 52.00 ~63.87 235.95 ·T.53111., R.77W. 11.33 18.96 13.00 t3.29 

Table a.--ID41cated or1s1nal reserves ot aub-bltumlnoua coal in W7o.ins (1n millions ot abort tona)--Continued 

1,000 to 2,000 teet overburo811. 2.000 to 3,000 teet overburden 

In .... I"' .... In beds In beds In beds In beds 

2 1/2 to 5 to 10 more thaD 2 1/2 to 5 to 10 more than 

5 teet teet 10 feet Total 5 teet teet 10 feet Total 

thick thick thick thick thick thick 

Fremont Count! 

.... . . . . . ... ·:ao .... . ... . ... .... "2:: . . . . . ... . . . . .... .... . ... . . . . 2.9t . . . . .... . . . . 1·2.77 1.13 13.90 11.10 .... 11.10 

1.98 1.93 2.31 6.22 2.01 .26 .... 2.27 

32.t5 27.11 45.96 105.52 20.91 12.24 69.44 102.59 5.25 1.67 . . . . 6.93 2o48 .... 2.48 3.21 2.79 . . . . 6.00 5.70 .56 .... 6.26 

. . . . .... --~46 . . . . . . . . . ... . . . . .... ·.46 .... .... .... . ... . ... 2.73 3.81 .... 6.54 l.tO 1.73 .... 3.13 .... . ... .... .... .... . ... 1.17 .... . ... 1.17 . . . . .... .... .... .... . ... .... .... .... . ... .... . . . . .... .... . ... . ... .... .... . ... .... .... .... .... .95 .... .95 4.83 .... . ... 4.83 6.29 ·.37 .... 6.66 2.75 .... .... 2.75 

69.95 39.27 48.27 157.49 51.18 14.79 69.44 135.41 

~ Springs County 

4.13 ' .18 .... 4.31 .::.84 .01 . ... 2.85 .62 13.21 .... 13.83 .09 9.66 . ... 9.75 1.74 .02 . ... 1.76 1.51 .33 . ... 1.86 2.83 . ... .... 2.83 .... . ... . ... .. ... .... . ... .... . ... .... . ... . ... .... 3.05 .... 3.05 .... . ... 4.16 .62 .... 4.78 .29 .... . ... .29 5.75 1.29 . ... 7.04 .90 .... . ... .90 .... . ... . ... . ... 3.35 . ... .... 3.35 2.49 .... . ... 2.49 

.... . ... .... . ... .... .... .13 .... . ... .13 .... . ... . ... . ... .... . ... . ... .... .... . ... . ... . ... .... .... . ... . ... .... . ... . ... . ... . ... .... .... . ... . ... .... . ... . ... .... . ... .... . ... .... . ... . ... . ... 25.'76 15.32 .... 41.08 8.12 10.00 . ... 18.12 

~County 

.... . ... . ... . ... .... . ... . ... . ... .... . ... . ... . ... . ... .... . ... . ... . ... . ... . ... . ... .... . ... . ... . ... .... .... . ... . ... . ... .... . ... . ... .... .... . ... . ... .... . ... . ... . ... . ... . ... . ... . ... . ... .... . ... . ... .... . ... .... . ... .... . ... . ... . ... .... . ... . ... . ... . ... . . . . . ... . ... .... . ... . ... . ... . ... .... . ... . ... .... . ... . ... . ... . ... . ... . . . . . ... 

Tota~ 1n all overburden categories 

In beda In beda In beda Township 

2 1/2 to 5 to 10 more tbaD total 

5 feet teet. 10 teet thick thick th1ck 

1.25 . . . . . ... 1.25 

2.65 .19 .... 2.86 

5.63 . ... . ... 5.63 

33.85 6.76 t0.61 

8.61 3.98 7.69 20.28 

53.36 39.35 115.40 208.11 13.75 2.66 . ... 16.41 11.94 3.91 . ... 15.85 .36 . ... .36 . ... 1.38 . ... 1.38 

8.15 9.62 . ... 17.77 

3.20 12.25 . ... 15.45 5.16 .... . ... 5.16 1.37 .... . ... 1.37 3.63 . ... . ... 3.63 

2.74 . ... . ... 2.74 5.78 .... 5.78 12.51 6.55 . ... 19.06 

173.94 86.65 123.09 383.68 

15.6'1 .21 . ... 15.88 19.90 .:54.10 . ... 54.00 3.28 .35 . ... 3.63 16.85 3.62 . ... 20.4'7 .34 . ... . ... .34 

9.16 .76 . ... 9.92 19.67 5.52 . ... 25.19 20.12 4.29 . ... 24.41 6.93 . ... 6.93 24.21 1.41 . ... 25.62 

.24 . ... . ... .24 9.36 . ... 9,36 2.63 .12 2.75 9.05 5.89 15.15 30.09 1.50 . ... 1.50 . ... .66 . ... .66 

158.91 56.93 15.15 230.99 

11.19 11.19 . ... t0.44 95.33 135.77 52.20 . ... 52.20 3.08 .06 3.14 27.16 13.67 112.37 153.20 

.77 . ... .77 12.76 128.36 . ... 141.12 36.72 87.23 123.95 20.08 52.00 163.8'7 235.95 11.33 18.96 13.00 43.29 
'!'o42Jr., a.'781f. 

'!'ofU., R.'78W. '!'.liOJI., a • ., •• '!'.&u., a.'7ew. t.&n., a. 'lew. 

T.f:ll., R.'79W. 'l'o49Jo 1 Ro"""'• 'lo501., Ro"""'• '!'oiUI., Ro'7W. '!.4U., R.801f. 

!.4411., a.eow. '!'.&n., R.eow. 'f.H~.; a.el.W. 

'!.ftl., R.81W~ 

., ... .,. •• a.a1w. 

t.GOJ., R.Bl.W. 

t.&ll., R.81Wo '!.&n., a.eu. t.su., a.en. 

'!.5u., a.eaw. 

'fol5SI.,· R.82W. T.52Jf., R.83W. 

count7 total 

'!'.251~~a.ll6Wo 

'!.211. ,R.116W. T.22Jf. ,R.116W. 

'f.24J.,R.ll6W. 

'f.25J. ,_R.U6W. 

!.191'.,R.11'1W. 

'1'•20B.,R.l1'1W. 

'f.2JJ(. 

1Ro117W. 

Oount7 totd 

T.:;D~ ~- a • .,,. • 'f.39f., R.'7'1W. 'f.l&ll., R.'781f. 'f.lS'lll., a.'18W. 

_!.381., R.'78W. 

'1'.361., R.79W. '1'.311., R.82W. t.321., R.82W. '!'.3311., 'Jt.82W. 

'1'.33lr. • R.Bal. 

!.o:s&J., R,84W. 'l'.atSw., R.esw. ,..sa., a.esw. '!'.au., a.aew. '1' .36Jt • 1 Ro86W • 

'f.$'1J., R.86W. t.Mw., R.B"'W. 'fe341fo 1 Re8'1Wo !.3"111., R.8'1W. 'f.MJ.,- R.sew. 

Courlt7 total 

9o5'7 

61•60 

19.94 5.oa 

3o98 

32.'7'7 

9.82 

28.99 

:5.09 

3.5'7 

18.'79 

l.·U 

26.fl 

10.'79 

30.51 

2o.&8 

46o81 

45.81 

19oM 

3.39 

.28 

3.2'7 

509.52 

3.lt 

3i:69 

25.76 

60.64 

:-:u 

.66 5.ea 

6.81 .. 

5.96 

2.32'' 

.27 

.03 

8.'12 

1.83 

14.15 

3.78 

4.39 

9.18 

...... 

s.u 

.02 

2.'14 

4.90 

68.'72 

12o24 

6.84 

a.o& 

3.19 

19.1'7 

1'1.19 

:19.M 

2.43 

2.'79 

3.oo 

&:6i 

.... 

2.66 

36o36 

19.28 

3ol3 

2.40 

oM 

6.36 

39.'74 

8.23 

286ol3 

362.61 

l3'1.M 

418.0'7 

.9.80 

61.5& 

68.44 

22.99 

8.22 

3.98 

51.94 

26.81 

'18o66 

5.52 

6.36 

2lo'19 

1.·&1 

32o92 

10.'79 

33o0'7 

2o48 388.8$ 

42'1o'10 

159.81 

423o88 

o82 19.43 

5'78.291 1,545.491 2, '733.30 

.... 

69.78 

19.52 

. ... 

7.99 

97.29 

6.70 

.$11 

.15 

.19 

.39 

3.89 

. ... 

2.66 

3.91 

.12 

2.94 

8.33 

8.66 

i:~ 

M.59 

38.60 

121.71 

271.84 4.42 

436.57 

3.19 

108.38 

19.52 

31.69 

25.76 

121.'11 

2'71.84 

12.41 

594.50 

.24 

.66 

5.82 

11.96 .91 

6.11 

2.51 

.. 66 

.03 

6.61 

1.83 

16.80 

'1.69 

4.6~ 

12.12 

8.33 

8.17 

.02 

2.74 

6.60 

104.31 

19.15 

16.64 

35.79 

.M .a. 

2:.;3 

1.39 

11.09 

2.76 

.51 

8.26 

&:84 .74 

2.35 

3.52 

39.07 

4.62 

3.18 

50.44 

58.24 

3.67 

.2& 

2.4'1 

2:i7 

'7.14 

15.70 

44.39 

52.10 

96.49 

Lincoln CountJ 

4.62 

3.18 

19.15 

16.6f 

44.39 

52.10 

50.44 

190.52 

~ Countl 

.M .a4 

5.'10 

1.39 

ll.M 

5.23 

.51 10.fi 

'7.14 

5.84 

.74 

2.35 

3.52 

54.77 

1.00 

.68 

7.69 

1.83 

4.98 

i:i6 

1.66 

1.1'7 

2 .. 45 

24.52 

3.53 

i:i4 

. :99 

3.57 

9.23 •.••• 

4.53 

.68 

7.59 

2~97 

5.97 

3.57 

3.16 

1.66 

1.1'7 

2.45 

33o75 

9oS7 

61.60 

19.94 

5o03 

3.96 

32.77 

9.62 

28.99 

3.09 

3o57 

l8o79 

1.41 

26.41 

10.'79 

30.51 

2..f8 

45o81 

f5o81 

19oM 

3.39 

.28 

3.2'7 

509.52 

3.19 

50.84 

42.40 

96.43 

.24 

.65 

5.82 

5.21 

5.96 

2.66 

.51 

.03 

5.'75 

3.90 

32.83 

8.37 

4.90 

2.2.42 

.... 

u •. 5l 

2.42 

6.26 

10.8'7 

133.31 

l2.2f 

6.84 

3o05 

3.19 

19.17 

l7o19 

39.M 

2.43 

2o79 

3.oo 

&:&i 

2.56 

35.35 

19.28 

3.13 

2.40 

.54 

6.156 

39.7f 

8.23 

285.13 

362.61 

137.34 

418.0'7 

..... 

9.80 

5'78.291 1,645.49 

74.40 

2.2. '70 

58.43 

155.53 

6.75 

• 91 

.15 

.19 

.39 

11.09 

2.90 

'7.52 

.12 

6.10 

19·0· 

2.66 

1.70 

59o&9 

38.60 

166.10 •. 323.94 4.42 

533.06 

. . ···-

61.f5 

68.44 

22.99 

8.22 

3.96 

51.94 

26.81 

76.56 

5o 52 

6.36 

21o79 

1.41 

32.92 

10.'79 

33.0'7 

2.48 

366.29 

42'7.~ 

159 • .81 

4~,86 

o82 19.43 

2,733.30 

3o19 

113•00 

2.2o'10 

50o84 

42o40 

166.10 

323.94 

62.85 

785.02 

.24 

.65 

5.82 11." 

. .~1. . 

6.11 

2.86 

.90 

.o'3 

l,-6.84 

3.90 

35.'7S 

15.89 

5.02 

28.52 

19.04 

17.1'7 

2.42 

6.26 

12.5'7 

192.83 
0 to 1,000 feet overburden 

Townllhip In beds 2 l/2 to 5 teet Total 

thick 

T.toll., R.66W. .56 . . . . . . . . .• 56 T.MB., R.6'111. 12.53 ... . . . . . . 12.53 'l'o4U., R.6'111. 1.22 .... . . . . 1.22 

Count,- total 14.:51 . . . . . ... 14 •. 31 

'f.5U., a.981f. :S.lSI . . . . 3.19 'f.o&e~., R.iflllf. 3.48 .18 .... 3.66 '!.&611., a.9911'. a.o:s .... . ... 21.03 '!.6'711., R.99W. 2.9'1 . . . . 2.9'1 'f.4o'7li.,B.l001'. 9.36 • 48 . . . . 9.83 

'1'.48B. ,R.lOOW • 3.53 .39 .... 3.92 T.4o9K.,R.lOOW. 3.18 . . . . . ... 3.18 T.51K.,R.lOOW. 4.08 .... 4.08 '1.4.'7li.,R.l01W. 19.65 16.6'7 . . . . 36.32 'l.48 •• ,R.l01W. 5.29 .22 ..... 5.51 

'l.4o9B.,B.l01W. 1.69 .48 . . . . 2.l'r 'l.50B.,R.lOlW. 4..93 . . . . 4.93 'f.51K.,R.l01W. 2.1'7 .26 . . . . 2.43 'l.5n.,R.l01W. .59 .... . ... .59 'l.~ •• ,R.101W. ·1.4.8 . . . . . ... 1.48 

T.4o'7K.,B.l02W. •• 86 1.96 . . . . . 6.82 

'f.48K. ,R.102W • 2.1(1 . :4i .... 2.lli~ 

T.50B.,R.l02W. . . . . . ... .4.1 

Count)" total 93.66 21.05 . . . . 114.'11 

'l.5&B., B.'76W. 23.62 . ... ~.62 

'!.sa., a.v•• 1.8'P 131.22 .... 133.09 

'f.&u.~ •• ., .... 25.49 133.'7'7 . ... 159.26 

'lMK., R;'mf~ 1.!5'1 .... 2.!5'7 

"·"~·· .. .,.,.~ .... 212.'15 . ... 212.'75 

'f~&H., R.'7'1W. '15.:58 285.59 . ... 360.9'7 t;.MJI., •• .,.. .... 21.01 . ... 21.01 

1~181'., B.'7R~ 14..'78 202.62 .... 217.40 

'l~IA~, ,B.8211o ..... ' ..... 19.14 19.14. 

!.&'11., Jl.BR. 1.'73 12•23 288.94 302.90 

T.68K., R.BH. .... 166.54 166.54- !.6611., R.MW. .... 18.58 6.'76 25.M 'lo5Q •• B.MW. 51.59 103.20 4'1.'78 202.&'r 'lo5'7B•, R.84W. 80.'76 130.33 '74'1.58 898.6'1 '!.5811., B.MW• 6.25 18.06 183.80 208.11 

'1'.55w., R.85w. . . . . 12.15 '19.66 91.81 ToHB., R.$511. 112.'76 56.8'7 169.63 'l.5'1B., R.85W. ·"' 51.70 125.88 1'18.02 T.5811., a.ea. 3.82 11.'78 54.'72 '70•32 

Count,- total 204.68 1,481.3'1 1,'77'7.6'7 3,4.63.'72 

Table e.--Indicated original reserves of sub-bituminous coal 1n W7oming 

(in millions of abort tona)--Continued 

1,000 to 2,000 feet overburden 2,000 to 3,000 feet overburden 

Total 

1!2!?!:!.!:!. County 

.... . ... . ... . ... . . . . ..... .. . . . .... . . . . . . . . .... . ... . ... . . . . . ... .... . ... . . . . . ... . ... .... . . . . . ... . . . . . . . . . ... . ... . ... . . . . . . . . . ... .... 

Puk County 

.... . . . . . . . . . ... 2.23 . . . . .... 2.23 .32 .... .... ·.32 

. . . . .... . ... . . . . . ... . ... . . . . . ... . . . . . ... . ... .... . ... . ... 3.0'1 . . . . . . . . s.o'7 . ... .... . ... . ... . . . . .... .... . ... .... . ... . ... . ... .... .... .... . ... 3.21 .... 3.21 .90 .... . ... .-90 10.96 1.44 .... 12.40 . . . . . ... . ... . ... 3.95 .... . ... 3.SI6 . . . . .... .... .... .... .... . ... . ... 1.38 .... .... 1.:58 1.10 . ... . . . . 1.10 .88 .... . ... .88 .01 . ... . . . . .01 .2'7 .... . . . . .2'1 .... . ... 1.29 .... .... 1.29 .sa . ... . . . . .88 

. . . . . . . . . ... .... . ... .... .30 . . . . . . . . .:so . . . . . ... . ... .... .... . . . . . ... . ... . ... . ... .... . ... 2'7.54. 1.44. . ... 28.98 3.21 .... . ... 3.21 

~County 

. ... .... . ... . ... .... . ... . ... .... . ... .... . ... . ... .... . ... ..... .... . ... .... . ... . ... . ... . ... . ... .... .... .... . ... . ... .... . ... . ... . ... .... .... . ... . ... . ... . ... . ... . ... . . . . .... . ... . . . . . . . . . ... . ... . ... . ... . . . . . ... . ... .... . ... . ... .... . ... . . . . .... . ... .... . ... . ... . ... . . . . .... . ... . ... . ... ······ . ... . ... . ... .... .... . ... .... .... . ... . ... .... .... .... . ... . ... . ... . ... . ... .... .... .... . ... . ... . ... . ... . .... .... . . . . .... . ... . ... . ... . ... .... .... .... . ... . ... . ... . ... . ... .... .... .... . ... . ... . ... . ... . ... .... . ... . . . . .... . ... . ... . ... . ... .... .... .... .... . ... . . . . . ... . ... .... . . . . .... .... . . . . . ... .... . ... .... .... .... .... . ... . ... ..... . ... . ... . . . . . . . . . ... .... . . . . .... . ... . ... 

Total in all overburden categories 

In beds In beds 'l'ownllhip 

2 l/2 to ore than total 

feet 10 feet thick thick 

.56 .... .... .56 12.53 . . . . ..... 12.53 1.22 . . . . .... 1.22 

u.:n .... .... 14.Sl 

3.19 .... 3.19 6.03 .18 . ... 6.21 21.03 . ... . ... 21.03 2.9'1 .... 2.9'7 12.42 .48 .... 12.90 

3.53 .39 .... 3.92 3.18 . ... .... 3.18 8.19 .... 8.19 30.61 18.11 .... 48.'72 9.24 .22 . ... 9.46 

1.69 .48 .... 2.1'7 '1.41 .... '7.U 3.06 .26 .... 3.32 .86 . ... .... .86 

3.65 . ... .... 3.65 

4..86 1.96 .... 6.82 2.49 .... 2.49 .... ··U . ... .41 

124.41 22.4.9 .... 146.90 

23.62 . ... 23.62 

1.8'7 131.22 . ... 13~.09 

25.4.9 133.'7'1 . ... 159.26 2.5'1 . ... 2.5'1 . . . . 212.75 . ... 212.'75 

75.:58 285.59 . ... 360.9'7 21.01 . ... 21 .. 0.]. 14.78 202.62 21'1.40 19.14 19.14 1.'73 12.23 288.94 302.90 

.... 166.54 166.54 1&.58 6.'76 25.34 51.59 103.20 4'7.'78 202.57 20.'76 130.33 '74'7.5~ 898.6'7 6.25 18.06 183.80 208.11 

.... 12.15 '79.66 91.81 112.'76 56.87 169.63 .44 51.'70 125.88 1'78.02 .3.82 11.'78 54.72 '70.32 

204.68 1,481.3'7 l, 7'7'7 .6'7 3,463.'12 
SWeetwater County 

'fe20J., R.90W. .... 29.91 . . . . 29.91 . . . . . ... . ... . ... .... . ... . ... . ... . ... 29.91 . ... 29.91 'f.2JB., R.90We .... 65.63 . . . . 65.63 .... . ... . ... .... . ... . ... . ... . ... . ... 65o6~ 65o63 'l'o20llo 1 R.91Wo .... 264.14 16.64 280.'78 . . . . .... . ... . ... . ... . ... .... . ... . ... 264.14 16.64 280.78 'l'o21llo 1 Ro91Wo .... 19.73 19.73 .... . ... . ... .... . ... . ... . ... . ... . ... 1~.73 19.'7~ 

T.201., Ro92W. .... 122o'16 124.32 247.08 . . . . . . . . . ... . ... .... . ... .... . ... . ... 122.76 124.32 247.08 

T.211fo 1 R.92W. 1o88 .... 1.88 . . . . . . . . . ... . ... . ... . ... . ... . ... 1.88 . ... 1o88 T.201fo 1 Ro93W. 6'7.85 .... 6'1.85 .... . ... . ... . ... . ... .... . ... . ... .... 67.85 . ... 67o85 T.211fo 1 R.9~W. 10'7.92 .... 107.92 . ... . ... .... . ... . ... . ... . ... .... 107.92 . ... 10'7.92 T.22&., R.93W. .92 16.96 .... 17o!! . . . . . . . . . ... . ... . ... . ... . ... . ... o92 16o96 . ... 17o88 '1'.21Ro, R.94Wo 79.33 .... . ... 79.33 .... .... .... . ... . ... . ... .... . ... 79o3~ . ... . ... 79.33 

T.22ll., Re94W. 44.60 58.60 67.82 171.02 .... .... . ... .... . ... . ... . ... .... 44.60 58o60 67.82 171.02 T.23B., Re94W. 53.45 . . . . 5~o45 .... . ... . ... . ... . ... . ... . ... .... 53.45 . ... 53o45 'l'o221fo 1 R.95W. 4.·61 56.31 . . . . 60.82 .... . ... . ... . ... .... . ... . ... .... 4.51 56.31 . ... 60o82 'f.23lo 1 Ro95W. 5o38 . . . . 5.38 . ... . . . . .... . ... .... . ... . ... .... 5.38 . ... 5.38 'f.20B., R.99W • 10o02 . . . . . ... 10.02 .... . ... . ... . ... .... . ... .... . ... 10.02 .... . .... 10.02 

T.21B., Ro99W. 1o96 . . . . 1o96 .... . ... . ... . ... .... . ... .... . ... 1o96 . ... 1.96 T o1 75. ,R.100W • 42o'19 9.26 . . . . 52o05 .... . ... .... .... . ... . ... .... . ... 42.79 9.26 . ... 52o05 T.18llo,R.100Wo 12.64 25.15 .... 37.'79 . . . . . ... . ... . ... . ... . ... . ... . ... 12o64 25.15 . ... ~7o'79 

'fo19B.,R.lOOW. 1.98 25o77 . . . . 27.75 . . . . . ... . ... . ... . ... . ... . ... . ... 1.98 25o7'1 .... 27o75 T.2())Jo,Ro100Wo 71.66 lilolO . . . . 80.76 . ... . .. ~ ..... . ... . ... . ... .... . ... 71o66 9.10 . ... 80.76 

'l'o211.,Rol00W • 42o50 7.41 4.25 M.16 .... . . . . . ... . ... .... . ... 42o50 7.41 4.25 54ol6 'fiol5lfo ,Rol01W • 54:~~ . . . . .41 o81 . . . . .81 . ... ..... . .... . ... 1.22 . ... 1.22, T.16N.,Ro10l11. 15.48 . . . . 69.53 24.69 4.96 . ... 29.65 .... . ... . ... . ... 78.74 20o44 . ... 99.18 .T ... l7K.,R,lO;J.W. 75.35 4.58 . . . . '79.93 .05 . ... .... .05 . ... .... .... . ... 75.40 4o58 . ... 79.98 TolUo ,R.101W o &1.22 l9o16 ..... 70oS8 . ... . ... . ... . ... . ... . ... . ... . ... 51.22 19.16 .. •'• 70.38 

T.l91.,R.101W. 6.10 . . .. 6.10 . ... .... . ... . ... . ... . ... .... 6o10 . ... 6o10 · T.20io,RolO.:l.W• 44o25 4.3~ .... 48.58 2.83 . . . . . ... 2o83 . ... . ... . ... . ... 47.08 4.33 . ... 51~41 

To2!1.,R.l01W. 1.01 .... 5.01 .96 . . . . .... .96 . ... . ... . ... . ... 5.97 . ... 5.t7 To14 .,R .. lOSW. 3 .41 8.82 .... 42.23 .15 . . . . . ... .15 . ... . ... . ... . ... 33o66 8o82 . ... 42o$8 T.1$B.,R.lQ2W. 15'7.99 .... . ... 157.99 1o85 . . . . . ... 1o85 . ... .... . ... . ... 159o84 . ... . ... 159o84 ~ 

-.J T.l65.,R.102W. 236.05 51.38 . . . . 287.4~ 31.89 .... . ... ~1.89 . ... . .. , . ... .... 267.94 51o38 . ... 319o32 T.171.,R.102W. 1.23 . . . . 1.~ . ... .... .... . ... . ... 1.23 . ... 1o23 'f.1~J.,R.103We :5.97 14.52 . . . . 18.49 20o90 9o44 .... 30.34 . ... . ... .... .... 24.8'1 23.96 . ... 48.83 To;j.41o 1Ro10:51'o 83.71 121.82 . . . . 205.5~ 12.11 .83 . ... 12.94 . ... .... . ... . ... 95.82 122.65 .... 218,1'7 

'1'.1:>1.,R,1031r• .26 .... . ... .26 . ... .... . ... .... . ... . ... .... .... .26 . ... .... o26 

fe28llo,RolOH. ' o19 .... . ... .19 i:i3 .... . ... .... . ... . ... .... .19 .... . ... .19 T.Uj, ,R.l041 o 1.21 ;:oi .... 1o2l .... . ... 1.13 . ... ., .. .... ' ... 2.34 . ... 2.34 

t.l4lo R,~4W. 15.41 . . . . 22.42 2.30 . ... ... , 2.30 . ... .... . ... .... 17.'11 '1o01 .... 24.72 

!.81. • ,R,.1, iJ• ..... 4.80 .... 4.~ . ... . ... .... , ... . ... .... 4o30 . ... 4.~ 

t.~I.,R.l.Of •• 23.4. u.1a . . . . 3~.5'7 2o94 14.25 . . . , 17o19 .... . ... . ... 26.38 27o38 .... 53.76 

'r~1&i. ,RoldSI. 8ol51 . · ... 8•51 o89' .... .... .89 . .... . ... ..... ·-··· 9.40 . ... ~.40. 

To1bo,Ro105Wo 120.33 6o80 .... 127.13 1'7o50 .... . ... 1'7,50 . ... .... . ... .... 137o83 6o80 l44o63 'f.1'71fo,Ro1051f. 67.96 9.81 . . . . '7'7.7'7 5.99 . . . . . ... 5.99 .... . ... .... .... 73.95 9o81 . ... 83.76 'f.181fo ,R.105W. 112o03 6.50 . . . . 118.53 23.49 . . . . . . . . 23o49 . ... . ... . ... .... 135o52 6.50 142.02 

'!'o19lo ,R~l~SW. '73.73 .... . ... 73.'73 6o36 . ... . ... 6o36 . ... . ... .... .... 80.09 .... .... 80.09 

T.201fo 1R.10H. 82•66 . . . . 82.65 16.53 . . . . . . . . 16.53 . ... . ... . . . . .... 99.18 . ... _ ... -. 99'.18 'f.l&lf. ,R.106W. 1.00 . . . . . . . . 1o00 2.~ .... . . . . 2o94 . . ... .. ... . ... ..... 3o94 . ... . ... 3.o94 f•l'lli.,R'.lOGW. u.u .... . . . . llo3l 8.12 .... . ... 8o12 . . . . . . . . . ... .... 19.43 .... . ... l9o43 f•lQ •• R.l06¥1. . . . . . .. ,. . . . . . ... .91 .... . ... o9l . ... . . . . . ... . ... .91 .... .... o&1 .. 

cmmt7 total 1,693.49 1,125.05 213~03 :5,0~1.5'1. '186.34' 29.48 .... 214o821 ... o T ..•. J · •••• _I_ •• -. ~11,8'78.s:s 11,154.5:5 1 21:5.03 l 3,246.:19 

Uinta County 

'fol51fo 1Roll8Wo .... 24o87 . ... 24.8'7 . ... . ... . ... .... . ... ...... .... .... . ... 24.87 . ... 24o87 'f.l6li.,R.118Wo 5.70 .... 5.70 .... . , ~ .. 5.70 5.70 'fol511o 1Re120W. 2o29 22.6~ 1~.'14 38.66 .• 21 21.68 llo91 33.80 19.85 4.58 24.43 2.50 64.16 30.23 96o89 'fo16B. ,R.l20W. 10.7~ 90.31 50.69 81o'1~ 7.42 23.50 42.69 73.61 .52 16.26 30.24 47.02 18.67 60.07 123.62 202.36 

Count7 total 13o02 '7~.51 64.~ 150.96 7.63 ..0.18 54.60 ,107.41 .52. 3t;.ll,. 34.82 71.45 21.17 154.80 153~85 329.82 

-
0 to 1,000 teet overburden 

ToWD8blp In beda In beda ID beda 2 l/2 to 5 to 10 aore than Total 5 teet teet 10 feet thlok th1Cll: thlell: 

-- - -· 

T.~ •• &.9011. 5.89 . . . .. 5.89 T.~ •• R.91JJ. 11.24. 11.68 . . . . 22.92 T.Ull., B.921. :5.14. . .. . . .. . 3.14. 

.Cowlt7 total 20.2'7 11.68 . . .. 31.95 

- ·t 

'f.'D ••••• ,.. ·2.95 .... . "' .. 2.95 ., ............. 6.6t .... . ... 5.69 ., ............. 89.06 . . . . .... 29.06 ., ............... 29.21· .... . ... 29.21 '., .............. 86.6'1 4..06 .... 30.63 

T·•••·· a.e'lW. 7.81 2.'18 .... 10.59 'f.tall ••••• ,.. a.aa .... s.aa t.4.lw •• a • .-. 24..SIO 4..86 .... 29.16 T.aw •• R ••• 28.22 a.a5 .... 51.4.'1 T.u ••• a.eew. 2'7.<&2 . . . . . .... 2'7.4.2 

T.UJ~ ....... 1.24. . . . . 1.24. t.uw •• R.eew. 26.61 .72 .... 27.28 , ........... 8.66 .... . ... 8.66 , •• .,. •• a.eew. 3.69 . . . . . ... 3.59 'f.48Jr •• R.681r. 10,'10 . . . . .... 10.'10 

Coua~ total 2:54..56 36.:51 .... 2'10.8'1 

Total I 6.503.981 e.l51.4.0.h5.56l.ea b1.a17 .16( 

Tab~ 8.--IDd.ioated or1sJ.nal re .. r,.a of nb-b1tua1Doua coal 1D W7~ 

(1D 111ll1oaa of ahort tC~U)--Ccm.tiDued 

1,000 to 2,000 feet overburda 2,000 to 3.000 feet ov.rburdeD 

In beda In beda In beda In beda In beda In beda 

2 1/2 to 5 to 10 aore than Total 2 l/2 to 5 to 10 !Jtore than Total 5 feet teet 10 feet 5 feet feet 10 teet 

th1cll: thlcll: thick th1ok thick thick 

- .. 

!.!!!!!!£!! CountJ 

4..58 . ... .... 4..58 . ... . ... . . . . . . . . .. ., . ... . . . . .6'1 . . . . . ... . ... .... . ... . ... . ... . ... . . . . . ... .... . . . . 5.25 . ... . ... 5.25 . . . . . ... . . . . . ... 

Weatop County 

. ... . ... . ... . ... . ... . . . . . . . . . ... . . . . . ... . ... .... . ... . ... . . . . . ... . ... . ... . ... . . . . . ... . ... . ... . ... . ... . . . . . ... . ... . ... . . . . . ... . ... . ... . .... . ... . ... . ... . ... . . . . . ... . ... . ... . ... . ... . ... . ... . ... . ... . ... . ... . ... .... . ... . ... . ... . ... . ... . ... . ... . ... . ... . ... . . . . . ... .... . ... . ... .... . ... . ... . ... . ... . ... . ... . ... . ... . ... . ... . ... . ... . ... . ... . ... . ... . ... . ... . ... .... . ... . ... . ... .... .... . ... . ... . ... . ... .... . ... . ... . ... . ... . ... . ... .... . ... . ... . . . . . ... . ... . ... . ... . ... . ... . ... . ... . ... . . . . .... . ... . ... . ... . ... . . . . . ... . ... .... . ... 

'fotal 1D all overburden categories 

In beda In beda In beda 

12 1/2 to !.5 to 10 laore than 15 feet feet 10 feet thlcll: thick thicll: 

10.4.'1 . ... 11.91 11.68 . ... 3.14 . . . . . ... 25.52 11.68 .... 

2.95 . ... . ... 5.69 . ... . ... 29.06 . ... . .... 29.21 . .... 26.57 4.06 . ... '7.81 2.'78 . ... 3.32 . ... 24.90 4.26 . ... 28.22 23.25 . ... 27.4.2 . ... . ... 

26:56 1.24. .... .'Ia . ... 8.56 . ... . ... 3.59 . ... . ... 10.'10 . ... . ... 234..56 36.31 . ... 

737.661 6'73.00 I 363.601 1.'7'7£.~1 P.A1 .MI 266.211 1'71.831 719.581 7.523.12110.090.'10116.097.261 

Township total 

10.4.'1 

23.59 

3.14. 

37.20 

2.95 

5.69 

29.06 

29.21 

30.63 

10.59 

3.32 

29.16 

51.4.'1 

27.42 

1.24. 

27.28 

8.56 

3.59 

10.'10 

270.87 

33,711.08 
Table 9.--Interred orif~&~~~~~:e:ro~~~-~!!.~ous coal ~n W7oming 

0 to 1,000 feet overburden l ,000 to 2,000 feet overburden 2,000 to 3,000 feet overburden Total in all overburden categories 

Township Inbodo r-r .... ] In .... 1'" .... ,In .... ,, ,. .... r .... In beds In beds In beds In beda 'fownahip 

2 l/2 to 5 to 10 more than Total 2 l/2 to 5 to 10 more than To till 2 l/2 to 5 to 10 more than Total 2 l/2 to 5 to 10 more tban total 

5 feet teet 10 feet 5 teet feet 10 feet 5 teet teet 10 teet 5 teet feet 10 feet 

thick -· thick . thick thick thick thick thick thick thick thick thick thick 

Albany County 

T.201., R.75W. 1.77 . . . . . . . . 1.77 .... . . . . .... . . . . .... 1.77 .... .... 1.7'7 

T.20J., R.76W. . . . . . ... .... . . . . .... .... 10.90 .61 . ... 11.51 10.90 .61 .... 11.51 

'1'.161., R.7'1W. 1.77 . . . . 1.77 .... . . . . .... .... .... .... .... . ... 1.7'7 2:66 .... 1.'7'7 

'l'o17lf., R.7'1W. 1.33 2.66 . . . . 3.99 .... .... 1.33 .... 3.99 

'1'.181., R.77W. .... 2.26 1.77 4.03 2.26 1.'77 4.03 2.40 1.88 4.28 6.92 5.42 12.H 

T.l91f~, R.'7'1Wo .... . . . . . ... . ... 2.10 1.27 . . . . 3.37 4.73 .... .... 4.73 6.83 1.27 .... 8.10 

County total 4.87 4 .. 92 1.77 11.56 2.10 3.53 1.77 7.40 15.63 3.01 1.68 20.52 22.60 11.46 5.42 39.48 

.§!& ~ COUnty 

'1'.501., R.92W. .14 . . . . . ... .14 .... . ... .... . . . . .14 .... .... .1, 

T.491., R.9:SW. .... .... .89 . ... . ... .89 2.21 .... . ... 2.21 :SolO . . . . . ... 3.10 

'l'o661fo 1 R.96Wo .62 . . . . . . . . .62 .... . ... . ... . ... . . . . . . . . . . . . .... .62 . . . . .... .u 

County total .76 . . . . . . . . .76 .89 . ... . ... .89 2.21 . . . . . . . . 2.21 3.86 . . . . .... 3.86 

Campbell County 

'1'.4.11., R.69W. 33.98 .... . ... 33.98 . ... .... . ... .... . ... . ... .... .... 33.98 .... .... 33.98 

To42Jf., R.69W. 20.31 .... .... 20.31 . ... . ... . ... . ... . . . . . . . . .... . ... 20.31 .... .... 20.31 ,;.. T.44.Jf., R.69W. 27.08 . . . . . . . . 2'7.08 . ... . .... . ... .... .... . ... .... .... 27.08 .... . ... 2'7.08 c.o T.451., R.69Wo 36.51 . . . . 36.51 . ... . ... . . . . .... .... . ... . ... .... 36.51 .... 20•:97 H.&l 

T.4.2Jf., R.70W. .... . . . . 204.97 204.97 .... . ... . ... . . . . . ... . . . . . ... . ... . ... . ... 204.9'7 

T.4:SI., R.701V. . . . . .... 339.84 339.84 . ... .... . ... .... .... .... .... . ... . ... . ... 339.84 331.86 

T.441., R.70W. .... . ... 166.20 166.20 .... . ... . ... .... .... . ... . . . . . ... . . . . . ... 166.20 116.20 

T.451., a.7ow. .... . . . . 139.65 139.65 .... . ... . ... .... . ... . ... .... . ... . ... . ... 139.65 ,139.6& 

T.4611J., R.70W. . . . . . . . . 19.56 19.56 . ... . ... . ... .... . . . . .... . ... .... . ... . ... 19.56 19.&6 

T.4111J., R.71W. .... . . . . 297.37 297.37 .... . ... . ... .... . .... .... . ... . ... . ... . ... 297.37 297.3'7 

To42B., R.'TlW. .... . . . . 4.84.27 484.27 .... . ... . . . . . . . . . . . . . . . . .... .... . ... . ... 484.27 486.2'7 

'1'.431., R.71W. .... . . . . 485.33 485.33 . ... . . . . . ... .... . ... .... . . . . . . . . . ... . ... 485.33 485.33 

'l'o4.fll., R.71W. .... 485.33 485.33 .... . ... . ... . . . . . ... .... . . . . .... . ... . ... 485.33 485.33 

T.f5J., R.71Yi. 1.33 .... 486.93 4.88.26 . . . . . ... . ... . ... .... .... . ... . ... 1.33 . ... 486.93 488.26 

'1'.46N., R.71W. .... .... 4U.79 441.79 .... .... . ... . ... . . . . .... . ... . ... . ... . ... 4U.79 441.'79 

T.47JI'., R.7ll. 352.89 352 .• 89 .... .... . ... . . . . . ... .... . ... . ... 352.89 352.89 

T.48JI'., R.711i. 15.63 117.95 42i:52 133.58 . . . . . ... .... . . . . . ... . . . . .... . ... 15.63 117.95 . ... 133.58 

T.491., R.71Yt. 79.08 31.26 531.86 . . . . . . . . . ... . . . . . ... .... . ... .... 79.08 31.26 421.52 631.86 

To50N., R.71V.. 15.29 22.09 22.66 60.04 .... .... . ... .... .... . ... . ... .... 15.29 22.09 22.66 60.04 

T.511 •. , R.71W. 33.10 . . . . . ... 33.10 . ... . ... . ... .... .... . ... . ... .... 33.10 . ... . ... 33.10 

'1'.521., R.71W. 5.10 .... . . . . 5.10 . ... .... . ... .... . ... .... . ... .... 5.10 . ... 5.10 

T.41Jf., R.72'11. .... .... 428.52 428.52 . ... .... . ... .... . ... . ... . ... . ... . ... . ... 428.52 428.52 T.421., R.72W. .... 484.27 484.27 . ... .... .... . . . . .. . . . ... . ... . ... . ... 484.2'7 484.2'7 T.f:SN., R.'72f4. 37.35 . . . . 488.52 525.87 . ... . ... .... .... .... . ... . ... . ... 37.35 . ... 488.52 525.8'7 T.44N., R.72W. 107 .• 83 . . . . 525.25 633.08 . . ". .... . ... .... . ... . ... . ... . ... 107.83 . ... 525.25 633.08 

'1'.451., R.72W. 63.55 . . . . 515.28 578.83 .... . ... . ... .... . ... . ... . ... . ... 63.55 4:78 515.28 5'78.83 

T.4.6N., R.72W. 4.65 4.78 483.21 492.64. .... . ... .... .... . ... . ... . ... . ... 4.65 483.21 492.64. 

T.47N.', R.72W. .... 60.73 382.32 443.05 .... .... .... . ... .... .... . ... . ... . ... 60.73 382.32 443.05 

T.4.8Jf., R.72W. 309.42 17.33 326.75 .... .... . ... .... . ... .... . ... . ... 309.4.2 17.33 326.75 

T.49N., R.72'1. '78.09 2:.!.26 961.60 1,061.95 . . . . . ... .... . ... .... . ... . ... . ... 78.09 22.26 961.60 1,061.95 

T.SON., R.72W. 34.32 85.38 2,129.68 2,249.38 .... .... . ... .... .... . ... .... . ... 34.32 85.38 2,129.68 2,249.38 

T.51N., R.72W. 126.25 258.06 384.31 .... .... .... .... . .... .... . ... . ... 126.25 258.06 384.31 T.52N., R.72W. 91.76 20.47 163.12 275.35 .... . ... . ... .... . ... . ... . .. . .... 91.76 20.47 163.12 275.35 

T .53N., R.72W. 11.32 2.71 .... 14.03 .... . ... . ... .... . ... .... . ... .... 11.32 2.71 . ... 14.08 

T.55N., R.72W. 5.90 73.52 .... 7.9.42 . ... . ... . ... .... .... . ... .... . ... 5.90 73.52 . ... 79.42. 
0 to 1,000 feet overburden 

Township , .... I"' .... I"' .... ·I 2 1/2 to 5 to 10 JDOre than 5 teet teet 10 feet Total 

thick thick thick · 

T.561., R.'12W. 54.70 94.9'1 . . . . 149.67 T.5'7N., R.72W. 4.80 . . . . . ... 4.80 '1'.58JJ., R.72W. 7.00 7.00 T.4tlf., R.'13W. .... 38.17 313.82 351.99 T.421., R.73W. .... 56.95 484.27 541.22 

T.4:3N., R.73W. 25.45 213.43 494.26 7:53.14 · T.4411., R.73W. 45.35 80.14 625.23 750.72 T.4:51., R.73W. .65 26.72 502.81 530.18 To4611., R.73W. .... 243.95 401.82 645.77 T.4'7N., R.73W. . . . . 494.47 64.17 558.64 

T.f8B., R.73W. 382.15 418.90 801.05 T.4911., R.73W. 3.98 77.82 1,142.89 1,224.69 

T.SON., R.73W. 47.79 .... 1,178.88 1,226.67 

T.5llf., R.73W. 57.77 . . . . 1,055.38 1,113.15 

'1'.5211., R.73W. 15.63 .... 726.11 741.74 

T.53N.;- R.73W. .... .... 246.15 246.15 Te541., R.73W. .... 246.15 246.15 en T.SSN., R.73W. 65.42 237.34 &J2.76 0 T.56N., R.73W. 18.20 132.41 .... 150.61 T.5711., R.73W. 63.20 49.00 .... 112.20 

T .581. 1 R. 73W. 39.81 7.70 .... 47.51 T.41JJ. 1 R.74W. 11.95 205.10 217.05 '1'.4211., R.74W. 5.18 304.93 102.48 412.59 T.431., R.74W. .... 3215.91 140.29 466.20 T.44lf. • R.74W. .... 225.26 24.47 249.73 

T.45N., R.74W. .... 255.62 33.71 289.:5:5 T.4611., R.74W. .... 360.57 4.76 365.33 T .471. 1 R. 74W, .... 415.29 415.29 '1'.48'11., R.74W. .... 349.40 108.32 457.72 T.4911., R.74W. .... 106.20 817.03 923.23 

'1'.50N., R.74W. .... 11.50 1,186.28 1,197.78 

'1'.51N., R.74W. .... .... 1,230.51 1,230.51 

T.52N., R.74W. . . . . 1,244.50 1,244.50 

T.53N., R~74W. 93.91 ..... 467.85 561.76 T.54N., R.74~. 40.41 .... 488.56 528.97 

To551r., R.74W. 5.07 40.04 399.25 444.36 T~411., R.75w. .... .... '1'.421., R.75w. 31.86 .... 31.86 T.43N., R.75W. 70.69 77.72 .... 148.41 T .44N. 1 R.75W. 26.04 200.9'7 .... 227.01 

T.4511., R.75W. .... 273.23 .... 273.23 T.46N., R.75W. .... 189.74 .... 189.74 T.4'7N., R.75W. .... 313.29 . ... 313.29 T .48N., R.75W. .... 198.24 198.24 T.491., R.75W. .... 193.28 240.72 434.0Q 

T.50N., R.75W. .... 275.04 843.94 1,118.9!3 '1'.5111 •• R.75W. .... 180.20 1,149.74 1,329.94 '1'.5211 •• R.75W. .... 618.67 618.67 To53N., R.75Wo 140.32 4&J.05 570.37 '1'.541f., R.'15W. 131.,&) 73.45 333.64 538.39 

Table 9.--Interred original reserves ot .ub-bituminous coal in Wya.ing 

(1n millions ot short tons)--Continued 

1,000 to 2,000 feet overburden 2,000 to 3,000 feet overburden 

In .... 'In .... !"" ..... , 2 1/2 to 5 to 10 JDOre then In 2 1/2 .... to r 5 to 

.... 10 r JDOre .... than 5 teet teet 10 feet Total 5 feet teet 10 feet Total 

thick thick thick thick thick thick 

Campbell County--Continued 

.... . ... . ... . ... .... .... . ... .... .... .... . . . . . ... . ... . ... .. , .. . ... .... . ... .... .... . ... . ... .... . ... .... .... . ... . ... . ... . ... .... . ... .... . ... . . . . . ... .... .... . ... .... .... . ... . . . . . ... .... .... . ... .... .... .... . ... . ... .... .... .... . ... .... .... . . . . . ... . ... . . . . . ... .... .... .... . ... . ... . ... . ... . ... .... .... .... . ... . ... . ... . ... .... .... .... . ... . ... . . . . . . . . . ... .... . ... .... . ... . ... .... .... . ... .... . ... .... . ... . . . . . ... . ... . ... . ... . . . . .... . ... . ... . . . . . ... . ... . ... .... .... . ... . ... . ... .... . ... . ... . ... .... . ... . ... .... . ... . ... . ... . . .. .... . ... . ... . ... . . . . . ... . ... . ... .... . ... .... . ... . ... . ... .... . ... .... .... . ... . ... . ... . ... . ... . ... .... . . . . . ... . ... . ... .... . ... . ... ..... . ... .... . ... . ... .... . ... . ... .... . ... . ... . . . . . ... . ... .... . ... .... . ... . ... .... . ... .... 110.10 88.63 198.73 .... .... . ... . ... .... 151.23 217.50 368.73 .... . ... .... . ... .... 202.37 106.03 308.40 .... . ... .... .... 215.12 . ... 215.12 . ... . ... . ... . ... .... 190.99 .... 190.99 . ... . ... .... . ... .... 191.16 . ... 191.16 .... .... .... . ... .... 84.96 .... 84.96 . . .. . ... .... . ... .... . ... .... . ... .... . ... . ... . ... . . . . . ... . ... . ... . ... . ... .... .... .... . ... . ... . ... . ... . ... .... ..... .... . ... . ... . ... . ... .... . ... .... .... . ... . ... . ... . ... . ... . ... . ... . . . . . ... .... . ... . ... .... .... 89.21 . . . . 89.21 . ... 21.24 196.47 .... 217.71 6.37 21.24 . ... 27.61 . ... 169.26 . ... 169.26 .... 132.54 . ... 132.54 .... 201.53 .... 201.53 . ... 102.30 . ... 102.30 

.... 305.86 .... &J5.86 . ... . ... . ... . ... .... 293.7:5 . ... 293.73 . ... . ... .... . ... .... 313.29 . ... 313.29 ··-·· .... . ... . ... .... 297.36 . ... 297.36 . ... . ... . ... .... . . ~. 307.98 .... 30'7.98 . ... . ... .... . ... .... . ... . ... .... . ... . ... . ... .... .... . ... . ... .... . ... . ... .... . ... . . . . . . . . . ... . . . . . ... . . . . . . . . . ... . . . . . . . . . ... . . . . . ... . ... . . . . .... . . . . . . . . . ... . . . . . ... . ... .... . ... 

Total in all overburden categories 

In beds In beds In beds Township 

2 1/2 to 5 to 10 1110re than total 

5 teet feet 10 feet thick thick thick 

54.'70 94.97 .... 149.67 

4.80 .... .... 4.80 7.00 7.00 .... 38.17 313.82 351.99 . ... 56.95 484.27 541.22 

25.45 213.43 494.26 733.14 45.15 80.14 625.23 750.72 

.65 26.72 502.81 S&J.18 .... 243.95 401.82 645.77 .... 494.47 64.17 558.64 

382.15 418.90 801.05 3.98 77.82 1,142.89 1,224.69 47.79 .... 1,178.88 1,226.67 

57.77 .... 1,055.38 1,113.15 15.63 .... 726.11 741.74 

. ... . ... 246.15 246.15 . ... 246.15 246.15 65.42 237.34 &J2.76 

18.20 "132.41 .... 150.61 63.20 49.00 . ... 112.20 

39.81 7.70 . ... 47.51 11.95 205.10 217.05 5.18 304.93 102.48 412.59 

. ... 436.01 228.92 664.93 . ... 376.49 241.97 618.46 

. ... 457.99 139.74 597.73 . ... 575.69 4.76 580.45 . ... 606.28 606.28 . ... 540.56 108.32 648.88 . ... 191.16 817.03 1,008.19 

.... 11.50 1,186.28 1,197.78 . ... .... 1,230.51 1,230.51 . ... 1,244.50 1,244.50 93.91 . ... 467.85 561.76 40.41 .... 488.56 528.97 

5.07 40.04 399.25 444.36 89.21 .... 89.21 59.47 217.71 .... 277.18 70.69 3'79.52 .... 450.21 26.04 504.80 . ... 530.84 

. ... 579.09 . ... 579.09 . ... 483.47 . ... 483.47 . ... 626.58 . ... 626.58 . ... 495.60 495.60 . ... 501.26 240.72 741.98 

. ... 275.04 843.94 1,118.98 . ... 180.20 1,149.74 1,329.94 

140:~2 .... 618.67 618.67 .30.05 570.37 131.30 73.45 3:53.64 538.39 
T.55R., R.'75W. 63.35 66.01 38.63 16'7.99 .... .... 2i:24 . ... . ... . . . . .... 63.:55 66.01 38.63 16'7.99 To41lfo 1 R.'76W. .... . ... . ... .... 21.24 .... . ... .... 21.24 . ... 21.2<4 T.-421., R.'76W. .... . ... 5'7.:55 .... . . . . 5'7.35 :56.11 10.62 . . . . 46.'73 93.46 10.62 . ... 104.08 T.431., R.'76W. 15.32 .... . ... 15.32 .... .. .. 26.92 164.<48 . ... 191.<40 42.24 164.48 . ... 206.'72 To441., R.'76W. 65.9'7 .... . ... 65.97 .... 19.71 .... 19.'71 .... 20'7.98 . ... 20'7.98 65.97 22'1.69 . ... 293.66 

T.4SI., R.'76W. 63.59 15.18 .... '78.'7'7 .... 210.36 .... 210.36 . ... 1.'70 .... 1.70 63.59 22'7.24 . ... 290.83 T.461., R.'76W. 3.'77 .... . ... 3.77 .... 212.<40 .... 212.<40 . ... . ... .... .... 3.7'7 212.<40 . ... 216.1'7 T.4'71., R.'76W. 29.7o& 74.M .... 104.08 .... 212.<40 .... 212.<40 . ... .... .... .... 29.74 286.7o& . ... 316.48 T.481!1., R.76W. .... 123.90 .... 123.90 .... 212.40 ..... 212.<40 .... . ... .... . ... . ... 336.30 . ... 336.30 T.49JII., R.76W. .... 188.33 . ... 188.33 .... 212.<40 .... 212.<40 . ... .... . . . . . . . . . ... .00.73 . ... 400.73 

T.601., R.76W. .... 356.12 96.29 452.<41 .... .... .... . ... .... . ... . ... . ... . ... 356.12 96.29 452.41 '1'.511., R.76W. .... 296.30 445.33 741.63 .... .... . ... .... . ... .... .... . ... . ... 296.30 445•33 741.63 '1'.52H., R.'76W. .... 162.10 lo&6.50 308.60 .... .... .... . ... . ... . ... .... . ... . ... 162.10 1o&6.50 308.60 '1'.531., R.76W. 154.03 <40.'78 194.81 .... . . . . . ... .... . . . . . ... . ... .... . ... 154.03 40.78 194.81 '1'.54:1., R.76Wo 25.20 90.06 .... 115.26 . . . . . . . . .... .... .... . ... . ... .... 25.20 90.06 . ... 115.26 

County total 2,036.43 8,815.22 29,955.95 40,80'7.60 189.04 4,311.08 412.16 o&,912.28 69.<40 6<40 .86 .... 710.26 2,294.8'7 13,76'7.16 30,368.11 46,o&30.14 

~ Oollnty 

'1'.1'71., R.'7'7W. 1.33 2.65 .... 3.98 . . . . .... . ... . ... . . . . . ... . ... . ... 1.33 2.65 . ... 3.98 '1'.19:1., R.78W. 2.66 ...... 2.66 .... . ... .... . . . . . ... . ... . ... . ... 2.66 . ... 2.66 'f.201., R.78W. 1.15 . . . . . ... 1.15 . . . . s:i2 . ... . ... . ... .... 1.15 . ... . ... 1.15 '1'.21N., R.79W. . . . . . ... . ... .... .45 4.67 . ... . . . . . ... .45 •• 67 . ... 5.12 '1'.2u., R.sow. .... . ... . ... . . . . .... 9.58 . ... 9.58 1.19 18.72 . ... 19.91 1o19 28.30 . ... 29.o&9 

T.23JII., R.aow. l.lilt .... . . . . 1.24 4.10 5.71 . ... 9.81 5.34 5.71 11.05 T.2211'., Ro81W. 6.81 7.13 16.82 30.'76 2.49 2.49 5.40 4.21 9.61 14.70 11.M 16.82 42.86 T.23N., R.81W. .... . .... 8.41 8.41 4.29 .54 9.06 13.89 21.46 25.'71 22.46 69.63 25.'75 26.25 39.93 91.93 T.24JII., R.81W. .... . ... .... . ... .09 . ... . ... .09 .o9 . ... .09 T.22N., Ro82W. .... 4.31 .... 4.31 3.6'7 . ... . ... 3.67 5.18 . ... . ... 5.18 8.85 4.31 . ... 13.16 

c:.n T.23JII., R.82W. ..... . ... 15.97 .74 . . . . 16.71 8.71 9.54 . ... 18.26 24.68 10.28 . ... 34.96 ..... T.22N., R.83W. .94 5.89 . ... 6.83 1.19 6.15 7.3. .94 1.91 . ... 2.85 3.07 13.95 17.02 '1'.23N., R.83W. .... 9.78 33.02 .eo 43.60 28.25 51.77 . ... 80.02 38.03 84.'79 .so 123.62 '1'.22N., R.8o&W. .... 3.14 4.99 8.13 .... . ... . ... . ... . ... . ... . ... . ... :5.14 4.99 8.13 To231., R.84W. .... . ... ..a • .a . . . . . ... .13 .13 .... . ... . ... . ... . ... . ... .53 .53 

'1'.211., R.89W. 1.08 . . . . .... 1.08 . . . . .... . ... . ... .... . ... . ... . ... 1.08 . ... . ... 1.08 'f.22JI., R.89W. l.M . . . . .... 1.M . . . . . ... . ... . ... .... . ... . ... . ... l.M . ... . ... l.M 'f .23B •, R.89W. .38 . . . . .... .38 . ... . ... .... . ... . ... .... . ... . ... .:58 . .... .38 '1'.251., R.891f. 4.43 6.07 l.M 11.84 . . . . . ... .... . ... .... . ... . ... . ... t.43 6.0'7 1.M 11.84 '1'.261., R.89W. . . . . .67 .... • 67 . . . . . ... . ... .... . . . . . ... . ... . ... .... .67 . ... .6'7 

'f.2'111., R.89w. . . . . 6.61 3.12 9.'73 . . . . . ... . ... . ... . ... . . . . . ... . ... .... 6.61 3.12 9.73 t.12 •• , a.eow. . .. . .73 • 73 . . . . . ... . ... . ... .. . . . ... . ... . ... .... .73 ;73 !.181., R.i91f. . . . . 2.23 a.a& . ... . ... . ... . . . . . . . . . ... . .... . ... .... . ... 2.23 2.23 '1'.1:51., a.el.w. .36 .6'7 l.M 2.a'7 . . . . .... . ... . ... .... . ... . ... . ... .36 .67 l.M 2.3'7 t.1u., a.e1w. .ao . . . . .... .30 . . . . . ... . ... . ... . . . . . ... . ... . ... .30 . ... . ... .30 

t.l&l., a.nw. .90 .... .80 .... . ... . ... . ... . . . . . ... .... . ... .90 . ... .90 !.1811., R.91W. . . . . 65.37 .... 65.&7 . . . . . ... . ... . ... .... . ... .... . ... . ... 65.37 . ... 65.3'7 '1'.191., R.91W. 22.84 .... 22.M . . . . .... . . . . . ... . ... . ... 22.84 . ... 22.84 '1'.121., R.~2W. 1.'7'7 .... 1.77 10.40 1.:53 .... 11.'73 . ... . ... .... . ... 12.17 1.33 . ... ].3.50 T.161 .• , R.92W. .... • 76 . ... .76 . ... . ... .... . . . . . ... . ... .... . ... . ... .76 . ... .76 

'1'.161., R.92W. .... .67 3.23 3.90 .... . ... . ... . ... . ... . ... . ... . ... . ... .67 3.23 3.90 '1'.1'711., R.92W. .... 1.12 . ... 1.12 . . . . . ... . ... . ... .... . ... . ... . ... . ... 1.12 . ... 1.12 '1'.181., R.92W. 1.33 37.o&4 .... 38.7'7 . . . . . ... .... . ... .... . ... 1o33 3'7.44 38.77 !.191., R.92W. .... 38.67 6.0.4 ,3.71 . . . . 61.12 . . . . 5J. .. 12 . ... . ... . ... . ... 89.79 5.04 94.83 '1'.191., Ro93W. .4'7 1.45 . . . . 1.92 .... 24.71 . ... 24.'71 . ... 3.44 ..... 3.44 .47 29.60 30.07 

County. totai 22.59 208.86 46.92 278.36. 49.48 1~.86 9.99 191.3~ 75.32 121.01 22.46 218.79 14'7.39 461.72 79.37 688.48 
0 to 1.000 teet overburden 

T01H18h1p Total 

T.3'7JJ., R.68W. . .• 13 .... .1& T.38Jf., R.68W. 28.61 23.40 . . . . 52.01 T.39ll., R.68W. 62.63 . . . . .... S2.63 T.36JI., R.69W. 2.'76 . . . . .... 2.'74 '1'.&'711., R.69Wo 91.46 . . . . . ... 9l.f6 

'1'.l58Jf., R.69W. 119.10 . . .. . . . . 119.10 'f.&9Jf., R.69W. 55.09 .... .... ss.o9 "'fofOlf o 1 Ro69W. 2.92 . . . . . ... 2.92 '!.&611., R.'101'. '7.'76 . . . . .... '1.'16 ! .&'71., R. '101' • 34.52 .... .... 34.52 

T.40B., R.'P1'1. '72.22 72.22 

T.40K., R.'72W. 2.66 27.88 &21.52 352.06 

!.411f., R.'12W. . . . . . . . . 140.72 140.72 

'f.40JI., R.'P3W. 27.75 128.S. 39.85 196.44 

T.f111., R.?&W. . . . . 34.07 51.11 85.18 

'!.&51., R.74W. 10.76 1.08 .... 11.84: !.361., R.74W. . . . . 31.80 .... 31.80 'f.&'PJI., R.74W. .... 12.'72 . . . . 12.72 

(TI T.38B., R.74W. S.50 .... 5.50 1:'13 'f.39B., Ro'7fto 15.00 . . . . .... 15.00 

T.40N., Ro74W. 65.'76 10.95 .... 66.70 

'ro41JI., R.74W. 23.90 liB .54 .... 52.44 T.351., Ro75W. 1.16 23.59 .... 24.'75 'l'o36B. 1 R.'751h 18.86 18.85 .... 37.71 

To38B., R.'75W. .... 50.42 .... 50.42 T.41B., R.'P511. .... . ... . ... . ... Countr 11ota1 550.82 39'7.64 625.42 1,573.88 

'f.27Jf., R.90W. .6'7 .... .• 6'7 To28B., R.90W. 1.56 .... . ... 1.56 T.27B., R.93W. i:33 .... . ... T~27JI., R.94W. .... . ... i:ss 

To341f., Ra94W. .... . ... . ... . ... To3311. 1 R.96W. .... . ... . ... . ... '1'.3411., R.96W. .... . ... ~ ... . ... T'~ lS. 1 R. 6Ee .... . ... . ... . ... Countr total 2.89 .67 .... 3.56 

T.f4JI., R.9&W. ... 23 .... .... .2~ T.44JI., R.94W. .... .... 'fo445., R.95W. .56 .... . ... ·:s& 

'l'.fSJf,, Ro96W. .... .... Tof6Jf.,B.100W. 3.1'7 .... .... 3.1'7 

Co~mtr total :5.96 .... . ... :5.96 

Table 9.--ID1'erred original reserves ot aub-bit\1111noua ooel in Wroatns (111 111111ona ot short tona)--Oontinued 

1.ooo to 2.ooo feet overburden 2.ooo to 3.ooo teet overburden 

In beds In beds 2 1/2 to 2 1/2 to 5 teet Total 5 feet Total 

thick thick 

Converse~ 

. . . . . . . . . ... . ... . ... . . . . . ... . . . . . ... .... . ... . ... . ... . ... . ... .... . . . . . ... . ... .... . ... . ... . ... .... . ... .... . ... . ... . ... . ... . ... .... . . . . . ... . . . . . ... . ... . ... . ... . . . . . ... . ... . . . . . ... . ... . ... . ... . . . . .... . ... . ... . ... . ... .... .... . . . . . ... .... . ... . ... . ... .... . ... . ... . ... . ... . ... . ... . ... . ... . ... . . . . . ... . . . . . ... . ... . ... .... .... . . . . . . . . . ... .... .... . ... . ... . ... .... . . . . . ... . .... . ... . ... . ... . ... .... . . . . . ... . ... . ... . ... . ... . ... . . . . . . . . . ... . ... . . . . . ... .... . ... . ... .... . ... . . . . . ... . ... .... . ... 7.23 .... . ... '1.23 . ... .... .... .... 3.'77 . ... . ... 3.'7'7 . . . . . ... .... . . . . . ... . ... .... .... . ... .... .... . ... . ... .... . ... .... . . . . . ... .... . ... . . . . . ... . ... .... . ... .... .... . ... . . . . .... . ... .... . . . . .... .... .... .... . ... .... . ... .... .... .18 .... . .... .18 .... .... .... . ... 5.99 . . . . . ... 5.99 .... .... . ... .... . ... .... .... .... .... .... 21.24 .... . ... 21.24 .... .... . ... .... 36.41 .... . ... &8.41 .... .... . . . . .... 

~gountz 

.... . ... .... . ... . ... . ... . ... . ... . ... 3.32 2.21 .... 5.53 '7.52 5.'75 2.88 16.15 .... . ... .... . ... . ... . ... . ... . ... .... .... 3.36 . ... . ... 3.36 

.... . ... .... . ... 48.36 33.48 122.63 204.47 . ... . ... . ... . ... 19.58 10.54 64.'7'7 94.89 . ... . ... .... .... - .41 . ... . ... .41 

3.32 2.21 . ... 5.53 '79.23 49.'77 190.28 319.28 

!2!. !E!!a!. ~ 

. ... . ... .... . ... . ... . ... .... .... .... . ... • 13 . ... . ... ·.13 .... . ... . ... .... . ... . ... .... . ... • 40 .... . ... .fO 1.76 .... . ... 1.'76 .... . ... . ... 1.'76 .... . ... 1.76 ,.53 .... . ... I o53 

Total 

In beds To1mship 

more tb&D total 

10 teet . thick 

.1& . ... . ·.13 

ae.ISl 23.40 .... 52.01 

&8.63 . ... . ... 52.63 

2.'16 . ... . ... 2.'76 

91.46 . ... .... 9l.f6 

119.10 . ... .... 119.10 55.09 . ... . ... 55.09 2.92 . ... .... 2.92 7.76 . ... .... '7.'76 

34.52 . ... . ... 34.52 

'72.22 72.22 2.66 2'7.88 321.52 352.06 140.72 140.72 2'7.'75 128.84 39.85 196.44 . ... 34.0'7 51.11 85.18 

17.99 1.08 . ... 19.0'7 3.77 31.80 .... 35.67 . ... 12.'12 . ... 12.72 s.so . ... 5.50 15.00 . ... .... 15.00 

55.'15 10.95 . .... 66.'70 23.90 28.54 . .... S2.4f 1.3f 23.59 . ... 24.9& 24.85 18.85 . ... 43.'70 50.42 . ... 50.42 21.24 . ... . ... 21.24 

589.23 &9'7.64 625.42 1,612.29 

·.67 . ... .67 1.56 1.56 10.84: 7.96 2.88 21.68 1.33 . ... . ... 1.33 3.36 . ... . ... &.36 

48.36 33.48 122.63 204.4'1 19.58 10.54 64.7'1 94.89 .41 . ... . ... •• 1 

85.44 ·52.65 190.28 328.3'1 

.23 . ... . ... .23 .13 .... . ... .l:S .56 . ... . ... .56 . .fO ..... . ... .40 4.9:5 . ... . ... 4.93 

6.25 . ... . ... 6.25 
~County 

'fo42lllo 1 Ro'76Wo .... .... . ... . . . . 23.36 . ... . ... 23.36 a3:38 . ... 23.36 ui:&• .... 83.36 

To43J., Ro'761fo .... . ... . . . . .... . ... . ... 12.24 .... 35.62 23.38. .... 35.62 

T.44lll., Bo'761fo 1.18 . . . . . ... 1.18 .... .... . ... 78.16 . ... 78.16 1.18 78.16 .... '79.34 

To4511., R.'76W o 29.45 . . . . . ... 29.45 . . . . 84.96 .... 84.96 . ... '7.4'7 . ... 7.4'7 29.45 92.43 .... 121.88 

To46lllo, Ro'76Wo 20.62 . . . . . ... 20.62 . . . . 93.46 .... 93.46 . . . . .... . ... . ... 20.62 93.46 .... 114.08 

To4'711o 1 Ro'761fo 3'7.1'7 '7.08 . . . . 44.25 .... 90.2'7 . ... 90.2'7 . . . . . ... . ... . ... 3'7.1'7 9'7.35 .... 134.152 

T.48lll., Ro'761f. 8.815 5'7.53 . . . . 66.38 . . . . 95.58 . . . . 915.58 .... .... . ... .... 8.85 153.11 .... 161.96 

'fo49lo 1 Ro'76Wo . . . . 113.99 .... 113.99 .... 106.20 . ... 106.20 .... . ... . ... .... .... 220.19 .... 220.19 

To50lll., Ro'16Wo .... 205.32 205.32 . ... .... .... . ... .... .... . ... .... . ... 205.32 156:4..; 205.38 

T.511., Ro'76W. .... 145.815 156.4'7 302.32 . ... .... . ... .... . ... . ... . ... .... . ... 145.88 302.32 

T.521., R.'76Wo . . . . 145.53 79.01 224.54 . ... .... .... . ... . ... .... .... .... .... 145.53 79.01 224.54 

To53lo 1 Ro76Wo . . . . '7'7.38 . ... 7'7.38 . ... .... . ... .... '7'7.39 '7'7.39 

To42Jo 1 Ro'7'7Wo .... . ... . . . . . ... 51.56 4.14 2.71 58.41 .... .... 51.56 4.14 2.71 58.41 

'1'.431., R.'77Wo . . . . . . . . . ... . ... 114.'78 . ... . ... 114.78 34.4'7 .... 34.47 149.23 .... 148.23 

To44B., Ro7'7W. .... . ... . ... . . . . 23.38 . ... . ... 23.36 55.22 106.20 . . . . 161.42 78.58 106.20 .... 184.'78 

'1'.451., R.'77W. 7.08 .... . ... 7.08 10.62 196.47 . ... 20'7.09 6.37 63.'72 . . . . 70.09 24.0'7 260.19 . ... 284.26 T.461i., a.'7'7111. 35.40 .... . ... 35.40 . . . . 302.67 . ... 302.87 .... . ... . ... . ... 35.40 302.6'7 . ... 338.0'7 T.47J., R.'7'7W. 49.56 .... . ... 49.56 . ... 313.29 .... :us.29 .... .... . ... . ... 49.56 313.29 . ... 362.85 T.4811., R.'7'7W. 51.33 .... 51.33 . ... 31:5.29 . . . . 313.29 .... . ... . ... . ... 51.33 313.29 . ... 364.62 T.48lll., R.'7'7W. 33.12 14.8'7 47.99 . . . . 318.60 . ... 318.60 . ... . ... .... . ... 3:5.12 333.4'7 .... 366.59 

T.501f., R.'7'7Wo 22.51 28'7.80 .... 310.31 . ... .... . ... . ... .... .... . ... . ... 22.51 28'7.80 310.31 T.51J., R.'77W. 6.42 326.58 13.48 346.48 .... . . . . . ... . ... . ... . ... .... . ... 6.42. 326.58 13.48 346.48 '1'.5211., lt.'77W. 54.68 175.79 4.84 235.31 .... . ... . ... . ... . ... . ... .... . ... 54.68 175.79 4.84 235.31 T.53J., R.'77W. 4,8.26 14.36 .... 62.62 . ... . ... . ... . ... .... . ... 48.26 14.36 . ... 62.62 T.42SJ., R.7a.. . . . . .... . ... . ... 112.44 . . . . . ... 112.44 .... . ... .... . ... 112.44 . ... . ... 112.44 

To44N., R.7S.. .... . ... . ... 66.20 .... . ... 66.20 . ... . ... . ... . ... 66.20 . ... . ... 66.20 T.45B., R.78W. .... . ... . ... . ... 112.57 . ... 112.57 .... . ... . . . . .... 112.5'7 . ... 112.57 '1'.461., R.78W. .... . ... . ... . ... 93.46 58.41 . ... 151.87 . . . . . ... . ... . ... 93.46 58.41 . ... 151.8'7 '1'.4'711., R.'78W. .... .... . ... . ... 6'7.91r 127.44 . ... 195.41 .... . ... .... . ... 67.97 127.44 . ... 195.41 T.48N., R.'78W. . . . . .... . ... .. ... 57.35 159.30 . ... 216~65 .... . ... .... . ... 57.35 159.30 . ... 216.65 

C11 

c.> T.491., R.7aw ... 5.'78 .... 5.'78 63.72 127.44 .... 191.16 . ... . ... . ... . ... 69.50 127.44 . ... 196.94 T.50J., R.'78W. 11'7.76 6'7.16 .... 184.92 . ... .... . ... . ... . ... .... .... . ... 117.76 67.16 . ... 184.92 T,51B., R.78W. 108.80 6.78 .... 116.58 . ... . ... . ... . ... . ... . ... . ... . ... 109.80 6.78 . ... 116.58 'f.5211., R.78W. 45.03 .... . ... 45.03 .... . ... .... .... . ... .... 45.03 . ... . ... 45.03 T.43N., R.79Vi. .... . ... . ... . ... 12.1'7 .... . ... 12.1'7 . ... . ... . . . . . ... 12.17 . ... . ... 12.17 

T.46lll., R.79W. .... .... . ... . ... 31.86 . . . . . ... 31.86 . ... .... . ... . ... 31.86 . ... . ... 31.86 T.471., R.'79W. .... . ... . ... . ... 46.73 .... .... 46.73 .... . ... . ... .... 46.73 . ... . ... 46.73 T.48N., R.'79W. .... . ... 55.22 .... .... 55.22 .... . ... . ... .... 55.22 . ... . ... 55.22 T.49N., R.'79W. 52.01 .... . ... 52.01 35.~ .... .... 35.40 .... .... . ... . ... 8'7.U . ... . ... 87.41 T.50:R., R.'79W. 44.67 .... . ... 44.67 . ... .... . ... . ... .... . ... . ... . ... 44.6'7 .... . ... 44.67 

T.5lll., R.79W. 44.35 4:c>a 72:o5 44.35 .... .... . ... . . ... .... . ... . ... . ... 44.35 44.35 T .52N., R.'79W. 76.13 .... .... . ... . ... ..... . ... . ... . ... 4.08 72.05 76.13 T.53M., R.79Vi. 7.65 .... 30.59 38.24 . ... .... .... .... .... . ... . ... . ... '7.65 . ... 30.59 38.24 T.44N., RoBOW. 2.77 .... 2.'7'7 . ... .... .... . ... .... . ... . ... . ... 2.77 . ... 2.'77 T.48N., R.80w. 7.88 23.01 .... 30.89 .... .... . ... . ... . ... . ... . ... . ... 7.88 23.01 . ... 30.89 

T.50lll., 

T.49JI •• R.BOW. 

R.BOW. 15.80 11.78 .... 2'7.58 .... . ... . ... .... . ... . ... 15.80 11.78 27.58 139.80 139.80 . ... . ... .... .... .... . ... .... . ... . ... . ... . ... . ... . ... 139.80 139.80 '1'.511.# R.BOW. .... 12.69 141.42 154.11 .... . ... .... . ... . ... . ... . ... . ... . ... 12.69 141.42 154.11 '1'.521., 

T.53N., R.aow. R.BOW. .... . ... 249.31 24,9.31 .... . ... .... . ... . ... . ... . ... . ... . ... . ... 249.31 249.31 .... . ... 2'7.69 27.69 .... . ... .... . ... . ... . ... . ... . ... . ... . ... 2'7.69 27.69 

T.5llr., 

T.501(., R.81vt. 

R.81W. 2.80 159.55 .... 162.35 .... . ... . ... .... . ... . ... . ... . ... 2.80 159.55 162.35 3.36 3.36 .... .... 9a:a3 T.5311., R.81W. .... .... . ... . ... .... . ... . ... . ... 3.36 3.36 98.83 . ... . ... '1'.53)1., R.82W. 9.91 163.80 .... .... .... . ... . ... . ... . ... . ... . ... . ... 98.83 98.83 173.7,;l .... .... .... . ... . ... . ... . ... . ... . ... 9.91 163.80 173.'71 

County total 865.29 2,006.85 1,03'7.49 3.909.63 978.75 2,391.52 ~.71 3,372.96 119.44 267.79 .... 387.23 1,963.48 4,666.16 1.,040.20 7,669.84 
en 

A 

Townahip 

'1'.26J.,R.llH. 

'1'.241.,R.ll&W. 

'fo25JJ.,R.ll&W. 

'1'.191.,R.ll'1W. 

T .20JJ. ,R.ll '1W. To21B.,R.l1'1W. 

lr~nt7 total 

0 to 1,000 teet overb~den 

In beda In beds In beds 

2 l/2 to. 5 to 10 more than 5 teet teet 10 feet Total 

thick thick thick 

.34 ' .68 1.02 

.M ' .68 1.02 

Table 9.--Interre4 original reservea of aub-bituainoua ooal 1n W70Blng 

(1n milliona of abort tona)--Continued 

1,000 to 2,000 feet overburden 2,000 to 3,000 feet overburden 

In beds 

2 l/2 to 5 feet 

thick 

10.49 

8.21 

18.'70 

In beds 5 to 10 teet 

thick 

16.81 

16.81 

more In .... than 1 10 teet thick 

8.33 

60.22 

68.55 

In beds 

2 1/2 to Total 5 feet 

thick 

~County 

10.49 

8.21 

8.33 

60.22 

16.81 

104.06 

20.06 

15.05 

35.11 

.~County 

In beds In bed& 

15 to 10 aore than 

!teet 10 teet 

!thick thick 

Total 

20.06 

15.05 

35.11 

Total 1n all overburden categories 

In beds 

2 1/2 to 15 teet 

thick 

··.34 

30.55 

23.26 

54.15 

In beds 

~. to 10 eet 

!thick 

.• sa 

16.81 

1'7.49 

In beds 

!more than 

10 teet thick 

8.33 

60.22 

68.55 

'l'ownatlip total 

1.02 

30.55 

23.26 

8.33 

60.22 

16.81 

140.19 

'1'.33B., R.'7sw.l .• o51 .... 1 ····I ·.o51 •••• 1 ··:·1 .... j .... 1 .... , _ •• _..J .... 1 .... [ ,·.osJ- ~~ ...• 1 .... , '.o5 

T.66JI., R.98W. T.56JJ., R.991'. 'f.58B., R.99W. 'f.&U.,R.lOOW. 

_'f.52B.,R.lOOW. 

*'1'.56JJ.,R.lOOW. 

'l'.iOJr. ,R.lOlW • '1'.5U.,R.101W. 

.'f.52Jr. ,R.lOlW. 

!~50B.,R.l02W. 

Count7 total 

T.53B., Ro76W. 

'l'.54N., R.-76'w. 

'!.531., R.'7'1W. 'l'.54Jr., R.7'1W. '1' .571., R.'7'7W. 

'1'.581., R.'77W. 

T.56lf., R.'78W. T.5'7Jf., R.'78W. T.58Jr., Ro'78W. T.53lf., R.'79W. 

'1'.551.,· R.'79W. T.56lf., R.'79W. !.571., R'.'79W. T.58B., Ro'79W. T.53lf., a.aow. 

'1'.541'., a.eow. T.551., R.80W. To56ll., R.SOW. 

T.571., Ro80Wo '!.58111., a.aow. 

'1' .53I., R.81W • ToMB., R.81W. 'f.55ll., Ro81W. T.6&ll., Ro81W. 'fo5'11., R.81W. 

·:.6'7 

3.82 

.67 

.13 

.13 

. 3.67 

1.83 

1.70 

12.62 

12.51 

- 38~67 

32.96 

'7.48 

21.07 

40.27 

18.01 

117.42 

84.18 .34 

102.15 

225~55 

109.43 

4.21 

24.01 

244.67 

253.83 

128.36 

2.72 

1.50 

83.4'7 

243.08 

249.78 

* Posa1bl7 bituminous coal. 

46.131 

5.18 

11'7.17 

133.22 

'78.11 

146.'70 

108.93 

140.69 

2'7.02 

229:?2 

146.07 

314.89 

11.9'7 

1.36 

2.44 

5.56 

17.08 

155.64 3.40 

26.67 

0.68 

2.04 284.23 

291.88 

81.16 

13.69 

522.44 

'·.67 

3.82 

.67 

.13 

.13 

3.67 

1.83 

1.70 

12.62 

58.64 

43.85 

32.96 

7.48 

21.07 

40.~'7 

18.01 

117.42 

84.18 

1.'70 

2.44 10'7.'71 

359.80 

398.29 

3.40 

108.99 

1'71.39 

355.64 

6'78.'75 

447.26 

83.88 

231.22 

229.54 

5'71.86 

784.19 

4.78 

1.24 

.'72 

'1.0'7 

2.36 

16e1'7 

-

35.41 

56.92 

16.00 

115.78 

32.49 

49.95 

124.11 

60.9'7 

39.09 

12'7.95 

2.88 

2.88 

101.58 

219.40 

!!!:!£ County 

4.'78 

2.88 

1.24 

.'7·2 

'1.0'1 

2.36 

19.05 

1.7'7 

1.09 

13.61 

1.55 

18.02 

~County 

35.41 

56.92 

16.00 

115.'78 

32.49 

49.95 

124.11 

60.97 

140.67 

347.35 

21.89 

64.78 

1.'77 

1.09 

13.61 

1.55 

18.02 

21.89 

64.78 

. 67 

/8:60 

'.6'7 

.13 

.13 

1.'7'7 

2.33 

4.39 

22.51 

5.61 

46.81 

12.51 

te.67 

32.96 

7.48 

21.07 

40.27 

18.01 

152.83 

141.10 .34 

11s:i5 

341.33 

141.92 

4.21 

24.01 

316.51 

3'7'7.94 

189.33 

2.72 

1.50 

83.47 

346.95 

377.73 

2.88 

2.88 

46.13 

·5.18 

11'7.17 

133.22 

'78.11 

146.'70 

108.93 

140.69 

2'7.02 

229.72 

146.0'7 

416.4'7 

231.37 

1.36 

2.44 

5.56 

17.08 

155.64 :S.40 

26.6'7 

'-.68 

2.04 284.23 

291.88 

81.16 

13.69 

522.44 

.·'.67 

8.60 

.6'7 

.13 

.13 

4.65 

2.33 

4.39 

22.51 

5.61 

49.69 

58.64 

4:5.85 

32.96 

'7.48 

21.0'7 

40.27 

18.01 

152.83 

141.10 1.70 

2.44 12:S.'71 

4'15.58 

430.78 :S.40 

108.99 

171.:S9 

427.48 

802.86 

508.23 

83.88 

231.22 

229.54 

777.11 1,131.54 
To58lf., R.8lw. 92.55 95.34 275.25 463.14 63.52 89.13 .... 152.65 .... T.53lf., R.82W. 95.39 . . . . 95.39 .... .... . ... .... . ... '1'.5411., R.88W. 37.38 u.n . . . . 81.79 .... .... . ... '1'.&51., R.82W. 87.92 82.63 170.55 147.26 .... 147.26 T.&&J., R.82W. 241.55 237.72 84.08 563.35 90.87 331.05 .... 421.92 19.60 

T.571., R.82W. 249.30 8.88 540.87 799.05 124.11 323.53 .... 4.47.64 .... T.SBJ., R.82W. 91.9'7 164.68 243.28 4£19.93 42.62 92.62 . . . . 135.24 .... '1'.53lf., R.63W. 14.39 14.39 .... . . . . . ... . ... .... '1'.541., R.SH. 7.38 30.06 .... 37.44 .... . ... .... T.66lf., R.83W. 54.60 80.37 .... 134.9'7 .... 256.4'1 . ... 256.4'1 .... '1'.5611., R.BH. 197.08 199.8'1 45.65 442.60 103.38 315.64 419.02 1.22 '1'.5711., R.83W. 255.94 201.13 f21.62 878.69 f1.f6 48.68 3.12 93.26 .... '1'.6811., R.BM. 65.f9 29.34 221.19 316.02 . . . . . . . . . . . . T.55H., R.MW. '7.61 25~.18 866.'19 5 ••• . . . . 5 ... .... T.56H., R.MW. 1U.64 335.26 25.'17 502.67 10.09 11.87 .... 21.96 . ... T.5'111., R.Mw. 31.10 92.41 26.51 150.02 . . . . . ... . ... .... . ... '1'.581., R.841. 20.05 46.U 131.07 197.26 .... . ... . ... .... . ... '1'.&61., R.esw. 5.26 81.24 .... 86.50 .... .... . ... . ... . ... 'f •. 5'7ll., R.86W. 47.0'7 .... f'7.07 .... .... . ... .... . ... T.581., R.8&1f. 6.88 .... . ... 6.ee . . . . . ... . . .. . ... . ... '1'.581., R.86W. 6.94 .... .... 6.9. .... . ... . ... . ... Coant7 total 3,646.31 3,636.92 3,43'7.95 10, '721.18 1,134.72 1,942.67 3.12 3,080.51 10'7.4,9 . ~-

Sublette~ 

Sweetwater Countt 

--- tTl T.211., R.90W. 32.5'7 9.96 42.53 .... 29.'76 .... 29.76 .... tTl !.2611., R.90W. 2.'11 1.01 2.39 6.11 .... .... . ... T .201., R.91W. . . . . 30.69 . ... 30.69 .... 13.6'7 . ... 13.67 . ... T.211., R.91W. . . . . 49.75 49.'15 . ... 278.59 . . . . 2'18.59 .... '1'.201., R.92W. .... 70.50 18.11 88.61 . ... 260.6'7 . ... 260.6'7 . ... 'T.21lfo, Ro92Wo . . . . . ... . . . . . ... . ... 25.92 . ... 25.91 . ... T.IOJ., R.SIR. .... . . . . . ... . ... . ... 17.44 .... 1'1.44 T.26H., R.Sia. .... .... 1i:o; . . .. . . ... i:55 3.57 T._201., R.9fW. '7.75 3.32 . . . . 1.55 . . . . .... '1'.181., R.98W. 2.21 1.7'7 .... 3.98 6.64 3.98 . ... 10.62 7.97 

T.20J., R.99W. 1.69 .... . . . . 1.69 . ... . ... . ... . ... . ... '1'.211., R.99W. 9.39 .... .... 9.39 . ... . ... .... . ... ..... '1'.1'7li.,R.100W. 7.60 .... . ... '7.60 . ... . ... . ... .... T.211. ,R.100W. .~1 .... . . . . .81 .20 . ... . ... .20 !.14:1.,R.101W. . . . . .... .... . ... 4.30 .... . ... 4.30 ':04 

T.15N.,R.l01W. 1.89 .... . ... 1.89 16.42 . . . . .... 16.f2 46.40 'f .l6N. ,R.lOlW ~ . . . . . ... . ... e6:36 48.69 . . . . .... f8.6V 59.93 T.1'7H.,R.l01W~ 66.36 . . '. . ... . . . . . . . . . ... . .... . ... 'fo181.,R~10llo 1,98 . . . . .... 1.98 . . . . . ... 3:95 . ... 'lo20lf • ,R.101W,e .... .... .... . ... 3~95 . ... . ... . ... T.21J.,R.101W. .... . ... .... 1.6. . ... . ... 1.64 . ... T.14J.,R.102W. 1.53 . . . . .... 1.53 5.49 . ... . ... 5.49 'fo15J.,R.102Wo 9.f1 .... .... 9.41 88.60 . . . . .... 88.60 3.83 'r.16N. ,R.102W. .22 .... .... .22 58.22 . ... . ... 58.22 U.25 ToliN. ,R.103Wo . . . . . . . . . ... ..... 13.09 . ... .... 13.09 .28 

T.l4Jf.,R.103W. . . . . .... . ... . ..• . 1~92 . ... . ... 1.99 . . ... T.131.,R.104W. .... . ... . ... . ... ·.G3 . ... . ... .03 T.151.,R.105W. .... . . . . . ... .20 . ... . ... .20 .03 'ro16J. ,R.l05W. .33 .... .... .33 25.68 . ... . ... 25.68 12.13 T.l7lf.,R.l05W. .... . ... • • flit .... 2.6'1 .... .... 2.6'7 . ... 

. ... .... .... 156.07 . ... .... .... . ... .... .... 37.38 .... .... 87.92 . . . . .... 19.60 352.02 

.... .... . ... 373.41 . ... . ... .... 134.59 .... . . . . .... .... . ... .... 7.38 . ... .... .... 54.60 

.... . ... 1.22 301.68 .... . ... .... 297.40 .... .... . ... 65.f9 .... . ... .... '7.61 .... .... .... 151.73 

. ... .... . ... 31.10 . ... .... .... 20.05 .... . ... . ... 5.26 i .... . ... . ... •••o'c;j 

. ... . ... . ... 6.88 .... . ... . ... 6.94 

.... . ... 10'7.f9 ,,888.52 

. ... ..... . ... . ... .... . ... 2.'11 .... . ... 15.12 .... 15.12 . ... 20.49 .... 20.49 . ... 45.65 .... 4fi.65 . ... 32.17 . ... 32.17 .... .... 3.5., 3:5? 

'7.75 2.88 3.76 lf.61 16.88 

. ... .... . ... 1.69 . ... . ... . ... 9.39 .... . ... .... 7.60 . ... .... 1.01 . ... .... .04 4.34: 

. ... . ... 46.40 64.'71 . ... . ... 59.93 108.62 . ... .... . ... 66.36 .... . ... .... 1.98 . ... .... .... 3.95 

. ... . ... . ... 1.6. . ... .... '1.02 . ... . ... 3.63 101.84 . ... .... 11.25 69.69 . ... . ... .28 13.3'1 

. ... . ... . ... 1.92 . ... .... .03 . ... .... .03 .23 . ... .... 12.13 38.14 . ... .... . ... 2.67 

184.47 275.25 95.39 .... 44.41 . ... 229.89 

568.77 84.08 

332.41 540.87 257.30 243.28 

14.39 30.06 .... 336.84 .... 515.51 45.65 2f9.81 f2f.74 

29.34 221.19 26f.62 

347.13 25.77 

92.41 26.51 46.14 131.07 81.2f . ... 47.07 . ... . . . . . ... . ... . ... 5,579.59 3,f41.0'7 

62.33 9.96 1.01 2.39 44.36 . ... 343.46 

351.66 18.11 

71.5'7 . ... 49.61 . ... 1.55 3:32 8.63 3.7& 

. . . . . ... .... . ... . ... . ... . ... . ... . ... . ... . ... .... .... . ... . ... . ... . ... . ... . ... . ... . ... 

. ... . ... . ... . ... . ... . ... . ... . ... . ... . ... . ... . ... . ... . ... . ... . ... . ... . ... 

615.79 

95.39 

81.79 

317.81 1,004.87 

1,246.69 635.17 

14.39 

3'7.44 

391.4f 

862.86 

9'11.95 

316.01 

272.23 

524.63 

150.02 

19'7.26 

86.50 

47.0'1 

6.88 

6.94 

13,909.18 

2.12 

3.09 

5.21 

72.29 

6.11 

4f.36 

343.f6 

369.'1'7 

'11.5'1 

f9.61 

3.5'1 

12.68 

29.21 

1.69 

9.39 

'7.60 

1.01 

4.34: 

64.'71 

108.68 

66.36 

1.98 

3.95 

1.64 

'1.02 101.84 

69.69 

13.37 

1.9! 

.o:s 

.23 38.14 

2~67 
en 

(I) 

--In1'erred origi:oal reserve• of 1ub-bitW11nous coal in Wyoming 

( 1n million. of short tone) --Continued 

0 to 1,000 feet overburden 1.000 to 2,000 feet overburden 2,000 to 3,000 feet overburden 

!ownahip In beda In bed• In beda In bede In bede In beds In bede In beda In bede 

2 l/2 to 5 to 10 ~rete~ 2 1/2 to 5 to 10 more than 2 1,/2 to 5 to 10 more than 

6 teet feet Total 15 feet feet 10 feet Total 5 teet feet 10 teet Total 

thiok• thick th1c11: thick thick thick thick thick thick 

·-

! .. etwater ~--Contiaued 

!.18B.,R.105W. . . .. ..... .... . . . . 18.0'1 . ... . ... 18.0'1 .... . ... !.l9B.,R.l05W, .... . . . . .... . ... 8.'14 .... . . . . 8.74 1.65 . ... . ... i:65 ! .20B • ,R.1015W • .... .... . ... . . . . 24.50 . ... . ... 24.50 6.20 .... . ... 6.10 !.11B.,R.l06W. . . . . . ... . ... . . . . 24.6'1 . . . . . . . . 24.6'1 48.93 . ... . ... 48.93 Tol'IB.,RolOA. . . . . . ... . . . . .... 3'1.53 . ... . ... 3'7.53 3'1.76 .... . ... 37.76 

T.1BB.,R.106W, . . . . . ... .... . ... 29.15 .... .... 29.15 aa.ao . ... . ... :58.ao ! .121. ,R.lllW. , ·.s2 . . . . . . . . , ·.32 . . . . .... . ... . . .. . ... . . . . . ... . ... ctQ:unty total 114.20 186.29 33.'78 334.2'1 420.40 631.58 .... 1,051.99 2'18.2'7 116.31 3.76 398.34 ~ 

Tetog .2!!!!!!?z** 

To41B.,R.lllW. 9.95 11.99 21.94 .... .... . ... ~---- . ... . ... . ... .... . ... T.,U.,R.lllW. 24.25 9.42 33.67 .... . . . . .... . ... .... .... . ... .... T.4U.,R.l12W. 18.26 '·4' .... 22.'70 .... .... . ... . . . '.... . ... . ... .... '1'.44B.,R.ll2W. 3.55 7.11 . . . . 10.66 .... . . . . . ... . ... . ... .... . ... . ... T.4U.,R.ll2W. 4.80 6.66 . . . . 1.1.46 .... .... .... . ... . ... . ... . ... .... '1'.4U.,R.ll3W. 3.11 . . . . .... . 3.11 .... . . . . . . . . . ... . ... . ... . ... . . . . 'f.«JJ.,B.ll.B. '1.11 '1.29 . . . . 14.40 .... .... . . . . . ... . ... . . . . . ... . ... ·T • .SJ.,R.llaw. 3.155 . . . . . . . . 3.55 . . . . .... .... .... . ... . ... . ... . ... T.an.,B.ll4W. ..,2 .... . ... ·.42 . . . . . ... . . . . . ... . ... . ... . ... . . . . ~t7 total '715.00 37.49 9.42. 121.91 . . . . . . . . .... .... . ... .... . ... . ... 

Uinta County 

T.l'IB.,R.ll:s· .... 29.31 . . . . 89.31 . ... / ·.71 . ... :· .'11 .... .... .... . ... T.l6B.,B.ll • .... 79.83 . ... '19.83 . ... 28.43 . ... 28.43 .... . ... . ... . ... '!.·l'fli.,R.ll8W. .... 14.44 . ... 14.U . ... 25.49 . ... 25.49 .... .... !.1&1 • ,R.l20W • .... . ... . ... . ... . ... .53 . ... .53 . ... 14.67 . . . . 14:&; ~t7 total .... 123.58 . ... 123.58 . .... . 55.16 . ... 55 •. 16 .... 14.6'7 . ... 14.6'7 

!!!.!!!!!!. Oountz 

'.r.,511~-, B.89W • '·.62 •,:29 .... '.62 . . . . .... .... . ... .... . ... .... . ... ,.,ew.' a.SQW. . . . . .29 .... .... . ... . ... ··-·· . ... . ... . . .. '.f •• .,..' •• iO'I. ·.16 .40 .... .56 ...... .... .... . ... . ... . ... . . .. . . ... '.f.-&81., R.91W. .1'7 . . . . . . . . .17 . , .. .... . ... . .... . ... !.46B., R.91W. . . . . . ... . ... .... .89 .... . . . . ·.89 4.43 . ... . ... 4.43 

T.45J., B..92W, 1.11 . . .. .... loll .89 . ... .• 89 ·.89 . . . . . ... .89 

, ........ 8.9211. .... . . ..• '7.52 3.10 . ... 10.62 1.11 .... 1.11 

'1'.4~5., B.92W. 3.54 5.9'7 .... 9.51 '7.9!7 6.64 . . . . 14.61 3.10 2.21 . ... 5.31 

~t7 total 5.60 6.66 .... ~2.2'6 1'7.2'7 9.?4 . . . . 27.01 9.53 2.21 . . .. 11.'74 

Weatoa OountJ 

'·-"·~-; -~~6'11. 2.99 . . . . . . . . 2.99 .... .... . ... . ... . ... . ... . ... . ... '!.4R., R.68W. 5.18 . . . . . ... 5.18 .... .... .... . ... . ... . ... . ... . ... '•'4B., R.68W. 6.33 . . . . .... 6.~ .... . ... . . . . . ... . ... . ... . ... .... d'Oiilt7 total 14.50 . . . . . ... 14.50 . . . . ..... . ... . .... . ... . ... .... . ~ .. - ··--· -

*-Coal 1n Tetoa CouD~J' is at deptbl ot 0 \e 1.000 feet. 

Total 1n all overburden categoriee 

In bede In bede In beda Townahip 

2 1/2 to 5 to 10 more than total 

5 feet feet 10 feet 

thick thick thick 

18.0'1 . ... . .... 18.0' 10.39 .... . ... 10.39 ao.7o . ... .... ao.'IO 

73.60 . ... .... 73.60 

'15.29 . ... .... '15.29 

67.45 . ... .... 67.45 -~32 . ... .... ·.a2 

812.8'1 934.18 37.54 1,784.59 

9.95 11~90 2l.M 2,.25 .... 9.42 33.67 18.26 4.44 .... 22.'10 3.55 '7.11 .... 10.;66 

4.80 6.66 .... 11.46 

3.11 . ... 3.11 7.11 '7.29 .... 14.40 3.55 . ... . ... 3.55 '.42 . ... . ... •• 2 

75.00 3'7.49 9.42 121.91 

. ... 30.02 . ... 30.02 ~ .... 108.26 . ... 108.26 . ... 39.93 39.9& . ... 15.20 . ... 15.20 

. ... 193.41 . ... 193.41 

.62 . ... --'.62 

.... .29 . . •'• r.29 .16 .40 . ... ·.56 .1'1 . .. .... .• 17 5.32 . ... .... 5.32 

2.89 .... . ... 2.89 8.63 3.10 .... 11.73 1 •• 61 14.82 .... 29.-&a 

32.40 18.61 .... 51 .• 01 

2.99 . ... ....... 2.99 5.18 . ... . ... 5.18 6.33 . ... . .... 6.33 

14.50 . ... . ... 14.50 

'73,048.45 
0 \o 1,000 fMt overllurden 

'!oWDIIblp In bed• lt to 18 'total 1Dchea 

tblok 

'Ioili., a.'7'11. .... . . . . ·!~ '!.au., a.'781. . . . . .... a.t~ a:;; «'folllfo 1 Ro'1tllo . . . . i:~ 1'7olSI 1'7.!! '!'.an., a.'1ft. i:ii i:•& 1.~ «'!.au.# a.eow. 1.811 6.-&e 

et.an., a.SOIJ. • 6! 1.23 .1'7 a.o'7 tllo8-&lo, lo811fo ··~! ·~~ .81 1.~ 'foUl., lo811fo 

1:~ .02 . . . . «'!oll.lfo, a.ea. 1:~ ·:ai .... «'!.sa., •• MW. :10 . . . . .u 

•• at~., ··~· 1.~ 2.!4 1:~ f.Ol '!.ln., a.SR. 1.10 . ~ 2.6! '.r .Ill., a.aar. :~ . . . . . ... ·!-! .,.aa., a.aa. . . . . ·:as , .. ~ 

'!.ln., a.8611. ol'J .... .8& 

'l'oUI., a.sa. . . . . ·:ii 1.89 1.~~ ~.131., fto8ft:o ..... ·:si -~~ tn ~.ln., a.eaw. .... -.3 '!.13 •• , ..... .... .sa .sa -~~ 

'!.ln., a.EKJW. .... . . . . '·88 •·ee 

'!.18., ••en. .... .sa . ... 'l'.lu., a.891f. .... • tW: 2.03 a:~ '1'~1 ... , •·SIOI!· . . . . i:~~ • .&& • .&5 'l'ol'71., B.GCM, . . . . e.ot! v.ee 

tlf~u. •• ··~· .... 1.os 2:•s 1·1?! '!.ln., a.SIOI. . . . . .... 2.fSI 

CO.t7 total '1.84 12.~ .&&.31 65.611 

f;.MJ., a.eur !o5l.lf., R.MW 

Ciq\lt7 . total . 

9. a6.M 10. 2,.30 

2. 6.10 6.1 10.'75 

29. 

;:;a a:i; v9:HI Qo:( 109. 

'76. 

• '!b.le tf•mebiP alao 0011t&1De nb-b1tuli1Dolla ooal. 

'fable 10.--origlDal reaerY .. # in all categoriea# f4 bitwainoua coal 1D W7oa1Dc C 1D ad.lliona ot abor\ tonal 

1,000 to ~.ooo fMt overbu1"4en a,ooo to a,ooo teet overwrdeD 

"In be"- ·In be4e Uto88 'total lt to 88 'total 1Dchea 1Dobea thiok thiok 

~ Oountz 

. ... . . . . . ... . ... . . . . . . . . . . . . . ... . ... . ... 2:ei &:~H . ... .... . . . . . ... .... . . . . . ... .... . ... .... .16 .16 &:a& 3:95 . ... 3.'73 s.-&2 .ao '7.&6 .... lO.SS 

.98 1.88 a.eo 1.93 1.91 .... 3.8.& .61 .1i .61 1.21 .56 .as .... .'78 ·.oa . ... . ... .oa . . . . .... .... .... . ... . . . . . ... .... . . . . . ... . ... . ... . . . . . ... . ... . ... . . . . . . . . . . . . .... .a 1.i6 . . . . 2.88 .&& l.K .... 2~$8 

. . . . . ... . ... . ... . ... . ... . ... .... . ... . ... . ... . ... . . . . . ... . ... . . . . . . . . .... . ... . ... . . . . . ... . ... . . . . . ... . ... . ... . ... . ... . ... . ... . . . . . ... . . . . .... . ... . ... . ... .... . . . . . ... .... . ... . ... .. ... . ... . ... . . . . . ... . ... . ... . ... . ... . ... . ... . . . . . ... . ... . ... . ... . ... . ... . ... . ... . ... . ... . ... . ... . ... . ... . ... . . . . . ... . ... . ... . ... . ... . ... . ... . . . . . . . . . ... . ... . ... . ... . ... . ... . ... .... . ... . ... .... . ... . ... . ... . ... .... . ... . ... . ... . . . . . ... . ... . ... .... .... .... . ... . ... . ... . ... . ... . ... . ... . ... . ... . ... . 

~··· ... 6 .. M '7.60 3.62 1"1.26 9.'10 '7.63 .... 1'7.33 

Crook~ 

. . . . .... . ... . ... . ... . . . . .... .... . ... . ... . . . . .... . ... . ... . ... 

L1nooln OcNntl 

. ... .... 1 ·-~1 "·~ ···~ . . . . . . . . 5.05 a.v. e. . . . . .... . ... . . . . .1'7 . ... 26.64. ·" 26.64. 

... •t .... I v&:G~ wi:~ s:sif .... , '7.00 .... '73.64.1 .,9:o5( . . . . 10.59 66.3 '76.90 . . . . 9ol8 62.3'7 '11.56 

'total in all o..rburden oategorl .. 

In beu In beda 'foaUiJI U to 88 .ore tU.n utal 1Dobee ta ina• tblok thiok 

. ... . ... .'7& .7& . ... . ... a.-&9 a.tv . ... 20.10 80.10 1.63 l.H 12.150 v.oa 1.62 as.lt 

3.62 5.oa .1'7 e.n l.ts .58 1.32 3.sa .1'7 .os . ... .ao 1.12 . ... 1.18 .10 .:u . ... .u 

2.91 e.ae .at t.ll 1.10 .a, 1.13 8.5'7 .18 . ... . ... .18 

.as . ... .ae .1'7 . ... .68 .ea 

. ... . ... 1.89 1.81 . ... .sa .aa . ... .91 .tl . ... .sa .sa . ... . ... 4.88 •• 88 

. ... .sa .sa . ... .68 2.03 8..'71 . ... ' .4.5 •• s . ... 1.81 8.os 9.88 . ... 1.0t l.ot . ... . ..... 2.fi 2.tt 

23.58 2'7.M ''·00 .100.2.& 

.59 

.56 

~ 

.... 1 .... 11 62.,9 8'7.00 . ... 25.39 35.02 60.n . ... 2.'70 .6.36 v.oe .... 8.'78 17.4.J u.aa 

et.a• 84..2, 

e.st 8.89 '7.65 '7.65 

.... , o.u, 2.'79 s.u 20.21 2.63 8'72.06 294..90 .... 29.4.8 196.SS 22t.81 
01 

00 

Townahip 

t¢.211. ,R.ll6W • «'1'.22Jl.,R.116W. 

T.23R.,R.116W. 

*'1'.24oi.,R.116W. 

*'1.251. ,R.ll6W • 

'l~26N.,R.116W. 

T~34J.,R.U6W. 

'l.35Jr. ,R.118W. T.&61. ,a.uew. 

'l.3711.,R.l1&W. 

W1' .1911. ,R.11 '1W. '1'.31Jr.,R.11'1W. 

T.36Jr. ,R.118W. 

'QO'imt:r total. 

...,.ao •• .-,a.1011J-~ ""'·211'· 1Rol01W. T.22R. ,R.lOlW.: 

T.80Jr.,R.102W 

!.2U.,R.102W 

'l.BU.,R.10 •• '!.23R.,R.10 •• T.liiOR. ,R.lO:SWo 

'!.21R.,R.10:SW. 

il'f.I2JI.,R.103W• 

'lo23Jr.,R.108o 

'f.l7Jl.,R.l04W• '!.lmr.,a.J.OtW. 

'!.19R.,R.l04W. 

'!.&OR. ,R.J.<KW. 

0 to 1,000 teet overburden 

In beds 14 to 28 inches 

thick 

. . . . .... 81.43 .... 38.25 . . . . 4.23 43.46 .. .. 2.36 1.71 . . . . . ... .... •,• .. 27.67· 

.15 .eo 10.69 

'.21 .68 20.83 . . . . .68 . . . . .74 4.06 

.... ·:u 9.07 . . . . . . . . .... .34 .... 8.06 51.03 519.29 

i:.;& 431.14 

5'78.53 

. . . . 

"·:;& 197.82 

4:59.98 

Total 

81.43 

38.25 

47.69 

4.07 

.... 

2'7.67 

11.64 

21.71 

> '.68 

4.80 

9.07 

.34 

.34 

578.38 

U.19 

fo.55 502.02 

656.57. 

1.86 

13.38 

305.58 

606.09 

* 'fbis townllhip also coata1na sub-bituminous ooal. 

Table 10.--0riginal reserves, in all categories, of bituminous coal in Wyoming 

(in millions of short tons) --Continued 

1,000 to 2,000 teet overburden 2,000 to 3,000 teet overburden 

In beds 14 to 28 Total inches Total 

thick 

~ Countx--coatinued 

. .... , 'o76 79.93 ao.69 . ... 2.27 77.19 79.46 

.... 1.45 54.38 55.83 . ... 6.36 56.09 62.45 

. ... 5.98 48.78 54.'76 .... 6.18 48.95 55.13 

. . . . 6.54 6.06 12.60 . ... 10.35 10.16 20.51 . ... . ... . ... . ... .... . ... 4.60 4.60 

33.60 33.60 34.26 34.26 

.19 1.17 14.82 16.18 ·.47 .52 14.84 15.83 

.91 .77 16.45 18.13 .04 .01 15.18 15.18 

. . . . .... . ... ····· . ... .... . ... .... .... . . . . . ... . ... . ... . ... .... . ... .53 .... 20.20 20.73 2.19 1.44 32.21 35.84 

.... . ... . ... .... . ... .... . ... .... . ... . ... . ... .... . ... . ... . ... .... 8.63 47 .'11 503.34 559.68 8.21 48.66 475.14 532.01 ·-· 

~CountJ 

Sweetwater~ 

.4& 4i:se li~::~ " ... 29.68 65.56 19.36 . ... e4:9~ .34 3:ie ~:~: 24.81 S.99 .... 28.80 

.27 .... 180.27 185.6e 4o3~ec 11.30 11.22 .... 22.52 

149.79 90.16 2'75.92 30.80 82.26 252.45 365._51 . .... .... . ... 4.86 27.54 32.40 

. . . . . . . . . .. •· . ....• .... .o81 .151 6.62 23:::: . .... 5.11 23.29 210.45 .... 3.24 18.36 21.60 

1'7?.84 177.84 .... 7&.'71 425.88 499.59 

. . . . . . . . . . . . . ... . ... .... 3:391 .... , . . . . ..... . ... . . ... .... . ... 2.49 2.17 3::~: . . . . . ... . . . . .... .8& 4.68 :5:5.95 . . . . .... . ... . ... 

Total in all overburden categories 

In beds In beds 14 to 28 more than 

inches 42 inches thick thick 

.... 3.03 238.55 .... 7.81 148.72 .... 16.39 141.19 .... 19.25 17.93 .... . ... 4.60 

95.53 .81 2.49 40.35 1.16 1.46 52.41 .... ·:;• .68 .... 4.06 

2.'72 1.44 61.48 . ... .34 . ... . ... .34 .... 24.90 147.40 1,497.'77 

34.0:5 1.02 .4:5 146.41 52.96 43.9& 25.71 4.33 52.25 18.05 34.45 98.82 375.21 635.23 

66.81 241.51 3'77.30 4.86 27.54 1.57 1.2& 1.'75 11.81 59.30 4:5'1.'76 25.39 84.29 80'7.34 

7&.71 603.72 1.'16 .10 6.14 6.4.6 .78 38.71 74.9& 199.99 18.42 53.20 473.93 

Township total 

241.58 

156.53 

157.58 

37.18 

4.60 

95.53 

43.65 

55.03 .68 

4.80 

65.64 .34 

.34 

1,670.0'7 

6.65 

11.25 

1'7~90 

.64 

.96 

--

1.60 

&5.48 

243.30 

30.04 

104.75 1,109.26 

685.62 

32.40 

4.55 508.87 

91'1.02 

67'7.43 1.86 

u.:ss . 3U.~ 

645.55 
tn 

co 

411o211fo 1Ro10fto ~.71 f8.91 289.87\ 378.87 28.06 &2.02 1f&.8'7 20&.95 25.26 20.61!1 a5.5f 1&1.f5 94.03 101.5a 518.66 71fo2'7 :-.l'.ta.,a.loa. , 19.70 13.38 1M.o2 167.10 .1.59 2.12 2f4.23 247.94 .fa "·" 252.51 297.63 21.77 60.14 630.76 712.6'7 'f.&ai.,B.10fto ' .... . . . . 18.72 1a.72 . ... 2f.30 137.70 162.00 24.30 156.42 180.72 4flo1U.,Il.lOR. 1&.96 6 ·.59 14..55 a.29 1'7:82 a.29 .... .... 22.25 .59 22.84. tfi.1.,..,R.10A. 4.8.51 7.86 M.83 171.20 &2.97 2.66 5&.f5 .sa .... . ... .~ a1.a6 75.6a 67.49 225.03 

41'!.),81.,R.10D. 6a.68 11,.08 283.25 f66.01 30.1'1 '16.26 1&7.26 243.69 4.44 1a.52 2a.5f 51.50 103.29 !a6 4f9.05 761.20 tlll'o191r. ,B.1061r. 60.31 9fo90 221.'15 3'16.96 '12.14 101.a2 206.54 380.50 68.a1 73.42 159.90 302.13 201.26 14 588.19 1,059.59 tlll'o20io 1Ro10511o 7.45 21.15 6a.oo 96.60 35.7'1 7a.55 303.oa 417.~ sa.22 66.24 216.63 M1.09 101.4f ·"' 5a7.7l a55.09 'fo21J.,R.10511. .... . ... . ... . . . . . ... . ... . ... . ... 1.la 5.53 5.2'1 11.9a 1.1a 5.53 5.27 11.98 'f.221'.,R.1061r. .... . ... . ... . ... . ... . . . . . ... . ... .oa . ... . ... .oa .oa . ... . ... .o8 

i1'!.1.,.. ,R.lOA. ' .... . ... . ... . ... 3.95 1.4.0 . ... 5.35 3.12 3.12 7.07 1.4.0 a.,., ofllr~18JI. ,R.1081l. .... . ... . ... . ... •• 12 5.02 . ... 9.1. 22.5'1 22.a2 35.87 81.26 26.69 27.84. 35.87 90.4.0 T.19J.,R.106W. .... . ... . ... . ... . ... . ... . ... . ... 4.21 .7. 7.61 12.56 4.21 .74 '7.61 12.56 

~tJ total 477.78 812.00 3,229.44 4,519.2~ 393.96 706.4.0 1,807.94 2,908.30 321.22 475.50 1,653.80 2,450.52 1,192~~ ~~~~·9<>__ ' 6,691._-18 _ _!,~8'78.04 

~~ 

,:iai~:ll.1i6W.J.---~26I ... :r .... 1 - .26[ · .... J _ .... 1 _····I .... [ ····I .... j • .-.. J .... ( .261 ····I .... J .26 

Uinta Countt -----

!.181. ,R.ll6'1. •• 28 29.35 33.6& .18 9.16 9.34 .... . ··~ 4.46 ~.51 •2.97 '!.161. ,R.ll '7W. .sa • 58 45.03 f5.94 .29 ~.18 ~.47 .... 31.0f 31.04 .33 .8'7 ll.f.25 115.41!1 wr .1 '71. ,a.11 ?W. 6.06 67.28 73.3f 5.8'1 65.90 '71.77 5.78 .... 68.60 74.38 17.71 201.78 219.49 'f.l8J.,R.11'7W. 3.24 1.60 73.4'7 78.:51 6.'7. .41 94.33 101.4a 7.01 . ... 101.54 108.55 16.99 2.01 269.M 288.M 'f.l41.,R.l1BW. .... . ... f5.80 4.5.80 .... . ... 35.39 35.39 . ... . ... 32.54r 32.54 . ... . ... 113.73 113.73 

il'f.151l.,R.,ll8W. .5'7 1.55 77.a'7 79.99 .5'7 1.55 82.10 a4.22 .4a 1.55 83.43 85.46 1.62 4.65 243.40 249.67 il'!.l6N.,R.118W. .... . ... 19.a2 19.82 .32 .71 28.6a 29.71 .48 .99 41.33 42.80 .eo 1.70 89.83 92.33 

i1'!.1'7J.,R.118W. .... 2.80 2.80 . ... I 2.80 2.80 .... 2.80 2.80 .... 8.40 8.4.0 'f.13J.,R.119W. . . . . 9.91 35.49 .5.40 .... 9.91 34.58 44.49 . ... 9.76 30.14 39.90 . ... 29.58 100.21 129.79 

Tol4J.,R.l19W. .... 2.04 a1.84. 83.88 2.26 87.46 89.72 .... 2.61 88.83 91.44 .... 6.91 258.13 265.04: '!.15J.,R.l19W. . . . . ·.27 . ... .2'1 .27 .... .27 . ... . ... . ... . ... . ... .54 . ... .54 

.tlmlni:Y total U.48 15.96 i'Z8.75 509.18 13.6a 15.40 47~ __ 15()7.66 13.75 14.91 480.25 508.91 41.91 46.26 1,437.58 1,525.75 

~~ 

'!.4511., R.61W. 2.11 .40 .05 a. 56 '1'.40., R.61W. 3.29 3.66 7.94 14.89 

'fo46J., Ro62W'o 4.92 3.32 .53 8.77 

'1'.4u., R.6ew. 4.2a 2.66 3.36 10.:50 !.4'11., a.en. . . . . 2.23 . . . . 2.23 

'!.481., R.62W. . . . . 1.19 .... 1.19 

, .fa .05 2.56 3.29 3.66 '7.94 14.89 4.92 3.32 .53 8.'7'7 4.28 2.66 3.36 10.:150 2.23 .... 2.23 1.19 . ... 1.19 

~t.,. tot&l 14:.60 13.4.6 11.88 39.9f 14.60 13.46 11.88 39.94. 

tot&l 13,234..95 

* 'fh!a towatlhip alao containa aub-bit.s,noua coal. 

• 
~owaablp, 

t'.ao ••• a.7&w. '!.2011 • ., R.76W. t' .1a... a • .,.,.. ~.1u ... a • .,.,.. 

~.).g. • B."l"'W. 

".1911. .. a • .,.,.. t' .2011... a • .,.,.. 

CoaDt7 tok.l. 

'!.110 •• ., 8.92W. '!.4911 ... 8.9:51f. ~.110 •• , R.9B. 1'.56 ••• 8.96W. 

CoUnt,. total 

m 

0 

"·~·· 8.6911. t'.~ •• B.691f. !'.~ •• 8.691r. 'l.&a •• 8..45W. '!.4.5 •• , R.6W. 

'!.46 •• ., Bo69Wo 

'l.o~n •• 8.69W. t'.~ •• a.eew. '!.4111 • ., 8o'1011e ".4.21r • • a. '70ir. 

t'.<IU • ., R."'''OI. ~.4411., R.'701r. 

1'.40., a.'1011. ~.4811., R.'701r. t'.4'1B • ., R."'''OI. 

'!.<1811., B."'IOf. ~.olft • ., R."'''OI. ~.5011., B."'IOJ. t'.4D •• 8.'11W. 

-~·..,.·· a.nw. 

t'.~ •• a.7m. ~.4411 •• 8.7m. '!.o&& •• , a.'711f. 

"·"•·· 

~An 8.'711f. •• a.71W. 

t' .oiSII. .. ~-'7l1f. '!.4911 • ., a."'D. ~.tiOII •• 8.7lw. t'.5D • ., a.'1l.W. '!.5211 •• ·8.'11 •• 

Table ll.--orig1nal reserves, in all categories, of sub-bitlDiinoue coal 1D W7oaing 

(in lllillions or short tone) 

0 to 1,000 feet overburden 1,000 to 2,000 feet overburden 2,000 to 3,000 feet overburden Total 1n all overburdeD categories 

In beds In beds In beds In beds In beds In beds In beds In beds In beds In beds In beds In beds t'owuhip 21/2 to 5 to aore than Total 2 l/2 to 5 to more than Total 2 1/2 to 5 to 1110re than Total ~ 1/2 to 5 to ~ .. ~ total 5 teet 10 teet 10 teet 5 feet 10 teet 10 teet 5 teet 10 teet 10 teet 5 teet 10 teet thicll: thick thick thick thick thick thick thick thick thick thick thick • ., 

Albany County 

1.77 .... 1.'77 .... . . . . 1.77 . ... . ... 1.77 49.31 22.32 .... '11.63 2'7.62 16.09 . ... 43. '71 26.'79 a.51 . ... 40.30 103.72 51.6 . ... 156.6& 1.77 . . . . 1.'77 . ... .... . ... . . . . . ... . ... . ... . ... 1.7'7 .... . ... 1.77 loSS 2.66 3.99 .... . ... 1.33 8.66 3.99 . . .. 2.26 1.'7'1 4.03 . ... 2.26 1.77 4.03 . ... 2.40 1.88 4.28 . ... 6.92 5.42 . 12oM 

4.80 32.46 .... 36.66 6.40 14.44 . ... 20.84 5.48 . ... 5.48 16.08 46.90 . ... 62.88 2.14 26.66 .... 28.80 1.80 19.75 . ... 21.55 1.50 3.25 . .... 4.75 5.44 49.66 . ... 55.10 

60.52 86.36 1.'7'7 148.65 - _35~~~- 52.54 1.'17 90.13 33.'1'1 19.16 1.88 54.81 .. - ].30.11 158.06 5.42 293.59 

M:.g J!2!:!! countt 

2.97 2.30 .... 5.2'7 .... . ... .... . ... 2.9'1 2.~ ---~ ~::: -5~'1"/' 

.... .89 . . . . . ... .89 2.21 . . . . . . . . 2.21 3.10 .... 3.10 

6.55 .44 .... 6.99 1.92 .... .... 1.92 .... . ... . . . . . . . . 8.4'7 ·" .... 8.91 

.62 . . . . . ... .62 . ... .... .... .... . ... . . . . . . . . . . . . .62 .... -.u .. 

10.14 2.'74 .... 12.88 2.81 . ... . ... 2~81 2.21 .... . ... 2.21. 15.16 2.'74 . ... 1'7.90 

~Countz 

'71.42 6.55 15.08 93.06 .... .... . ... . ... . ... . ... . . . . . ... '11.42 6.55 15.09 93.06 

46.o6 1.5.39 26.'7'7 88.22 .... .... .... . ... . . . . . ... . ... . ... 46.06 15.39 26.'7'1 88.22 a.98 .... . ... 3.98 . ... .... . ... . ... . . . . . ... . ... .. . . . . 3.98 . ... . ... 3.98 

~8.85 .... '78.85 .... .... . ... . ... . . . . . ... . ... . . . . '78.85 . ... 78.85 

'71.83 .... 68.15 139.98 . ... .... . ... . ... .... . . . . . ... . ... '71.83 . ... 68.15 139.98 

.... 88.10 88.10 . ... .... . ... .... . . . . .... . ... . ... . ... 88.10 88.10 

4.51 . . . . .9'7 5.48 .... .... . ... . ... .... . ... . ... . . . . 4.51 . ... .97 5.48 

.95 . . . . .• 95 .... . ... . ... .... .... . . . . . ... . ... .95 . ... .95 

.... . . . . 206.56 206.56 . ... . ... . ... . ... .... . . . . .... . . . . . ... . ... 206.56 806.56 

.... . ... 438.08 438.08 .... .... .... . ... .... . . . . . ... . ... . ... . ... 438.08 438.08 

.... 339.84 339.84 . ... .... . ... .... . . . . . ... . ... . ... . ... 339.84 339.84 

1.98 . . . . 301.0'7 303.05 .... .... .... . ... .... . . . . . ... . ... 1.98 . ... 301.07 303.05 

3.68 .... 386.57 390.15 .... . . . . .... . ... . ... . . . . . ... . ... 3.58 . ... s86.5'1 390.15 

29'1.32 29'7.32 .... .... .... . ... . ... . . . . . ... . ... 89'1.32 89'1.32 

• 82 1.99 .... 2.81 .... .... .... . ... . . . . . . . . . ... .... .82 1.99 . ... 2.81 

1.26 35.'79 14.6'1 51.'72 .... .... .... . ... . ... . . . . . . . . .... 1.26 35.79 1.4.6'7 5h72 

4.18 9.85 46.95 60.98 .... . ... .... .... . . . . . ... .... . ... 4.18 9.85 46.95 60.98 

.40 .... • 40 .... .... .... . ... . ... .... .... . . . . .40 . ... .40 

.66 . . . . 532.8'7 533.53 .... . . . . .... . ... .... ..... . . . . . ... .66 . ... 532.8'7 53:5.53 

. . . . . . .. 484.2'1 484.2'7 .... .... .... . ... . ... . . . . . . . . . . . . . ... . ... 484 •. 2'1 484.2'1 

. . . . . . . . 485.33 485.33 .... .... .... . ... .... .... .... . . . . . ... . ... 4:85.33 485.33 

4:85.33 485.33 . ... . .. ,. .... .... .... . ... .... ····· 485.33 485.33 

13.01 19.91 486.93 519.85 .... .... .... . ... .... . . . . .... . ... 13.01 19.91 486.93 519.85 

. . . . 1.33 484.27 485.60 .... . ... .... .... .... .... . ... .... 1.33 484.2'1 485.60 

. . . . . . . . 352.89 352.89 .... .... . ... . ... . ... .... .... .... . ... 352.BV 352.89 

16.51 249.21 .• 82 266.M .... .... .... . ... . ... . . . . . ... . ... 16.51 249.21. .• 82 266.64 

1.00.'16 '74.'77 835.69 1,011.22 .... .... . ... . . . . .... . . . . . ... . ... 100.'16 74.77 835.69 1.011.22 

15.29 '76.54 1,391.98 1,483.81 .... .... .... . ... . . . . . ... . ... . ... 15.29 '76.54 1,391.98 1,483~81 

33.10 16'7.8'7 200.9'7 .... .... .... . ... . . . . .... .... . ... 33.10 16'1.87 200.9'7 

5.10 1.'75 . . .. 6.85 .... . ... .... . . ~ . . . . . . ... . ... . ... 5.10 1.'15 .... 6.86 
T.531. • R.71W. 43.45 26.91 . . . . 70.S6 . . . . . ... .... . ... . ... .... .... .... 43.45 26.91 .... 70.36 

To651o, R.71W. 8.86 8.86 . . . . .... . . . . . . . . . . . . .... . . . . .... 8.86 8.86 

T.66J. • R.71W. 25.35 3.77 52.oq 81.1<& . . . . . ... . . . . .... .... .... .... .... 25.35 3.7'1 52.02 81.14· 

T.571. • R.71W. .51 .40 4.53 5.44 . . . . . ... ...... . . . . .... . ... .... .... .51 .40 4.53 5.44 

'1'.581., R.'11W. .... 6.50 15.25 21.76 . . . . . ... .... .... .... . ... .... .... .... 6.50 15.25 21.75 

T.411., R.721'. 3.98 lto66 428.52 44'1.06 . . . . . . . . .... . . . . .... .... . . . . .... 3.98 14.56 428.52 447.06 

T.421., &.721'. 16.53 484.27 500.80 .... . ... . . . . .... . ... .... .... .... 16.53 484.27 500.80 

'1'.431., R.72W. 37.35 30.32 633.78 701.45 . . . . . ... .... .... . . . . . ... . . . . .... 37.35 30.32 633.78 '101.45 

'l'o44lo 1 Ro72Wo 129.60 46.84 602.25 778.69 .... . . . . . ... .... .... .... .... . ... 129.60 46.84 602.25 7'18.69 

T.4o5Jr., To72W. 148.'74 49.41 583.62 781.'1'1 . . . . . ... . . . . . ... .... . . . . . . . . .... 148.'74 49.41 583.62 '781.'1'1 

To46J., fto'12W. 43.33 99.69 487.86 630.88 . . . . . ... . . . . . . . . . ... . . . . .... . ... 43.33 99.69 48'1.86 630.88 

To4"11f., R.'7ft. 9.89 11&.'10 417.57 540.56 ' . . . . . . . . .... . . . . . . . . .... . ... . ... 9.89 113.'70 417.5'1 540.56 

T.481., R.72Wo . . . . 309.42 201.81 511.21 . . . . . ... . . . . . . . . . ... .... . . . . .... 309.42 201.81 511.23 

!.48)1., lt.721'. 78.09 22.26 1,184.20 1,284.65 .... . ... . . . . . . . . . ... .... . ... .... 78.09 22.26 1,184.20 1,284.55 

T.501., 1.78. 34.38 12'7.36 2,'709.'16 2,8'11.44 .... . ... . ... . . . . .... . ... .... .... 34.32 12'7.36 2,'109.'16 2,8'71." 

To511. • R.'12W. 126.25 1,'794.13 1,920.38 . . . . . ... . . . . . ... . ... .... . ... .... 126.25 1,794.13 1,920.38 

T.5211., R.72W. 93.46 5'7.51 436.83 587.80 .... .... . . . . .... . ... .... .... .... 93.46 57.51 436.83 58'7.80 

T.531., R.'72W. 17.19 30.97 13'7.40 185.56 . . . . . ... .... . . . . . ... .... .... .... 17.19 30.97 13'1.40 185.56 

'f.54JI., R.72W. 7.91 '7.91 .... ..... .... .... .... .... . . . . .... 7.91 '1.91 

T.55JI., R.72W. 34.60 164.25 18.20 21'7.05 .... . ... .... .... . ... .... .... .... 34.60 164.25 18.20 21'7.05 

T.56JI., R.72W. 171.02 319.11 92.40 582.53 . . . . . ... .... . . . . . ... .... .... . ... 171.02 319.11 92.40 582.53 

T.571., ft.'72W. 129.40 187.90 2.50 319.80 .... . ... .... .... .... . ... .... .... 129.40 187.90 2.50 319.80 

'1'.58Jr., R.72W. 52.10 92.80 3.30 148.20 .... .... . ... .... .... .... . ... ····· 52.10 92.80 3.30 148.20 

'1'.411., ft.'73'1. 1.12 38.17 313.82 353.11 .... . ... .... .... .... . ... .... .... 1.12 38.17 313.82 353.11 

T.42JI., R.73W. . . . . 200.19 484.2'7 684.46 .... . ... . . . . .... . . . . .... .... .... .... 200.19 te•.27 684.46 

T.4$JI., R.'1R. 81.9'7 258.9'7 516.01 856.95 .... . . . . .... .... . ... .... .... .... 81.9'7 258.97 516.01 856.95 

T.44Jr., R.73W. 95.43 U2.76 645.89 964.08 .... . ... .... .... .... .... . ... .... 95.43 222.76 645.89 964.08 

!.4511., R.73W. 87.03 60.11 652.61 799.'75 .... . ... .... .... . . . . . ... .... .... 87.03 60.11 652.61 799.75 

T.46J., R.'13'1. 5.37 350.32 401.82 757.51 .... .... .... . ... .... .... . ... 5.37 350.32 401.82 75'1.51 

T .4'71. , R. '1311'. . . . . 569.58 64.17 633.75 .... . ... . ... .... .... .... .... .... . ... 569.58 64.1'7 633.75 

To481., R.73W. 386.6'7 507.6'7 894.24 .... . ... .... .... .... . ... .... .... 386.5'7 50'7.67 894.24 

en T.49JI., R.'7311. 3.98 77.82 1,164.99 1,246.'79 . . . . . ... . . . . . ... . ... .... . ... .... 3.98 7'7.82 1,164.99 1,246.'79 

...... T.501f., R.73W. 47.79 54.40 1,513.78 1,615.97 .... . . . . .... .... . ... .... . ... . ... 47.79 54.40 1,5.13.78 1,615.97 

T.511., R.73W~ 5'7.'77 .... 1,114.48 1,1'72.25 .... . ... .... . . . . .... . ... .... .... 57.77 .... 1,114.48 1,172.2& 

To52]1f., fto'73'fo 15.53 .... 726.11 741.74 .... . . . . . ... .... . ... .... . ... .... 15.63 . ... 726.11 741.'74 

'1'.531f., R.73W. 56.70 45.33 494.72 596.'75 .... . ... .... .... .... .... .... .... 56.70 45.33 494.72 596.75 

'1'.54Jl., R.73W. 1.34 21.00 371.40 393.74 .... . . . . . ... .... . ... .... .... .... 1.34. 21.00 371.40 393.'74. 

'f.S51., R.'73W. 16.92 77.04 392.'76 486.'72 . . . . . ... .... .... . ... .... . ... .... 16.92 7'7.04 392.'76 486.'72 

!.561., R.73W. 18.20 19'7.01 329.'70 544.91 .... .... .... .... . ... .... .... .... 18.20 197.01 329.70 544.91 

'1'.571., R.7a. 83.30 30'7.80 11.30 402.40 .... .... . ... . ... . ... .... .... .... 83.30 307.80 11.30 402.40 

T.581., R.'13W. 4.7.41 191.& 30 • .20 269.44 .... .... .... .... . ... .... .... .... 47.41 191.83 30.20 269.44 

T.41N. • R.'74W. 15.00 205.10 220.10 .... .... . ... . ... .... .... .... . ... 15.00 205.10 220.10 

'fo48'1., R.74W. 29~21 361.64 102.48 493.33 .... .... .... .... .... 29.21 361.64 102.48 4.93.33 

!.431., R.'7tl. 16.52 325.91 140.29 482.'12 .... 110.10 88.63 198.73 .... .... .... ...• 16.52 436.01 228.92 681.45 

T.4.1., R.'74W. 3.96 263.21 24.4'7 291.64 .... 151.23 217.50 368.73 . ... .... .... .... 3.96 414.44 241.97 660.37 

T.451., R.'14W. 40.60 266.94 33.'11 340.25 .... 202.3'1 106.03 308.40 . ... .... .... . ... 40.60 468.31 139.74 648.65 

'l'.t&J., R.74W. 22.84 36'1.46 4.76 395.05 .... 215.12 . . . . 215.12 . ... .... .... .... 22.84 582.57 4.76 610.1'7 

T.47JI., R.74W. 15.63 424.2'1 2.'75 442.65 .... 190.99 .... 190.99 .... .... .... .... 15.6~ 615.26 2.76 633.64 

'f.48lf., a.74W. . . . . 349.40 108.32 457.'78 .... 191.16 .... 191.16 .... .... .... .... .... 540.56 108.32 6t8.88 

'f.49lf •• a.'74W. .... 1oe.ao 817.03 923.23 .... 84.96 . ... 84.96 . . . . .... .... .... .... 191.16 817.03 1,008.19 

T.50B., R.74W. .... 11.50 1,186.28 1,197.78 .... .... . ... .... . ... .... .... .... .... 11.50 1,186.28 1,197.'78 

'f.5ll., R.'74W. . . . . .... 1,230.51 1,230.51 .... . ... . ... .... . ... . ... .... .... .... . ... 1,230.51 1,230.51 

'1'.52Jl., R.74W. 1,244.50 1,244.50 .... .... . ... .... . ... .... . ... .... 1,244.50 1,244.50 

T.53lf., R.74W. 227.62 39.61 827.89 1,095.12 .... . ... .... . ... . ... .... .... . ... 227.62 39.61 827.89 1,095.12 

T.54JI., R.'74W. 14.8.7'7 50.3'7 623.45 822.59 .... .... . . . . . ... . ... .... . . . . .... 148.7'7 50.3'7 623.45 822.59 

T.56JI., R.'7fW. 90.09 118.06 410.38 618.53 .... . . . . .... . . . . .... ..... . ... 90.09 118.06 410.38 618.53 

T.41JI., R.'75W. . . . . . ... 81h21 . . . . 89.21 . .... 89.21 . ... 89.21 

'1'.4211., R.75W. 31.86 .... 31.86 21.2-1 196.47 . ... 217.71 6.37 21.24 . . . . 2'7.61 59.47 217 .'71 .... 277.18 

T.43111., R.'75W. '70.69 '7'7.72 . . . . 148.41 . . . . 169.26 . ... 169.26 . ... 132.54 . . . . 132.54 '70.69 3'79.!;2 .... 450.21 

'1'.4411 .• , R.'75W. 26.04 200.9'7 . . . . 227.01 . . . . 201.53 . . . . 201.53 . ... 102.30 . ... 102.30 26.04 504.80 .... 530.84 
en 

M 

Township 

T.451., R.75W. .T.46lf., R.75W. T.471f., R.75W. '1'.48)(., R.75W. 

T.~9lf., R.75W. 

To501., R.75W. '1'.5111., R.75W. T.52lf., R.75W. T.5311., R.75W. T.5411., R.75W. 

T.551., R.75W. T.411., R.76W. T.42N., R.76W. T.4:3Jl., R.76W. To4:4N., R.761. 

T.4.51., R.761. '1'.46lf., R.76W. T.4:7Jl., R.76YI. T.4:81., R.'761. T~f91., R.76W. 

T.501., R.76W. T.5lll., R.76W. T.521., R.761,. 

T.53J., R.76W. T.54J., R.761f. T.5&1., R.76W. 

Count,- total 

-'1'.1711"., R.77W. T.l9Jr., R.7'111. T.l9Jr., lt.78W. T.20Jf., R.78W. T .20lf., R. 79W. 

-.r. aJ.lf. • a. 79W. T • .20N. 1 R.80W. «'1'.2J.Jf., R.BOW. *'!.2211., R.SOW. T.231 •• a. sow. 

'1'.241., a.eow. T.211., R.81W. T.22lt., R.81W. !.2311., R.SlW. T.2411., a .. 8D. 

T.2lJJ., R.82YI. T.22ll., R.etw. T.~JJ., R.82YI. To24:Wo, }l.82W. T .211., .R.e81. 

Table 11.--original reserves, in all categories, ot sub-bituminous coal in w,-oming 

(in millions ot short tons)--Continued 

0 to 1,000 teet overburden 1,000 to 2,000 teet overburden 2,000 to 3 1 000 teet overburden 

In beds In beds In beds 2 1/2 to Total 2 1/2 to Total 2 1/2 to Total 5 teet 5 teet 5 teet thick thick thick 

Campbell County--Continued 

273.23 . . . . 273.23 . . . . 305.86 .... 305.86 . ... .... . ... .... 14.14 232.24 .... 246.38 .... 293.73 .... 293.73 . ... .... . ... . ... . . . . 313.29 . ... 313.29 .... 313.29 .... 313.29 . ... .... . ... . ... ..... 198.24 . ... 198.24 . . . . 297.36 .... 297.36 . ... .... .... . ... . . .. 193.28 240.72 434.00 .... 307.98 . ... 307.98 . ... .... . ... . ... . . . . 275.04 843.94 1,118.98 . . . . . ... .... . ... . ... .... . ... . ... . . . . 180.20 1,149.74 1,329.94 .... .... . ... .... . ... . ... . ... . ... 4.92 1,149.40 1,154.32 .... .... .... .... . ... .... . ... .... 194.21 1.59 976.03 1,171.83 .... .... . ... .... . ... .... . ... .... 169.01 115.56 575.32 859.89 .... .... . ... .... . ... .... . ... . ... 121.34 201.00 53.75 376.09 .... . ... .... .... . ... .... .... . ... . ... . ... 21.24: .... .... 21.24 . ... . . . . . ... 57.35 .... .... 57.35 36.11 10.62 . ... 46.73 15.32 . . . . . ... 15.32 . ... . ... 26.92 164.48 . ... 191.40 65.97 .... . ... 65.97 . ... 19.71 .... 19.71 . ... 207.98 . ... 207.98 

66.89 15.18 . . . . . 82.07 . ... 210.36 .... 210.36 . ... 1.70 . ... 1.70 

67.98 . . . . 67.98 .... 212.40 . . . . 212.40 . ... . ... .... . ... 29.74 74.34: .... 104:.08 .... 212.40 . ... 212.40 .... . ... . ... . ... . . . . 12;5.90 . ... 123.90 .... 212.40 .... 212.40 . ... . ... . ... .... . . . . 188.33 . ... 188.33 .... 212.40 .... 212.40 . ... . ... . ... .... . . . . 356.12 ~6.29 4:52.41 . ... .... ..... . ... . ... .... .... . ... . . . . 2~6.30 445.33 74:1.63 . ... . . . . .... . ... . ... .... .... . ... . . . . 252.97 255.79 508.76 .... .... . ... . ... . ... .... . ... .... 284.41 40.'78 325.19 .... . . . . .... . ... .... .... . ... . ... 25.20 96.86 28.12 150.18 .... .... . . . . . ... . ... .... . ... 15.62 90.83 . . . . 106.45 . . . . .... . ... . ... . ... .... . ... .... 3,805.35 12,207.3'7 40,584.23 56,596.95 189.04 4,311.08 412.16 4,912.28 69.40 640.86 .... 710.26 

~ CountJ 

1.33 2.65 3.98 .... .... . ... . ... . ... .... . ... .... . . . . 3.13 .67 3.80 . ... . ... . ... .... .... .... . ... .... 2.66 .... 2.66 . . . . . ... .... . ... . ... .... . ... .... 1.15 . . . . .... 1.15 . ... .... . . . . . ... .... .... .... .... 1.6'7 . . . . . ... 1.67 . ... . ... .... .... . ... .... . ... .... 18.13 39.85 5.47 63.4:5 .86 18.05 .... 18.91 . ... ..... . ... .... 5.48· 5.07 8.93 19.48 .... 90.59 43.74: 42.79 177.12 1.25 3'7.62 8.52 47.39 1.55 24:.16 .... 25.71 

15.05 18.23 .60 33.88 12.98 4.33 .... 17.31 13.55 .61 .... 14.16 

51.13 88.17 . . . . 1:59.30 31.94 32.45 . ... 64:.39 18.74 22.43 .... 41.17 

·.49 .... . ... .4:9 .... . ... , .... .... .... :5.4.3 3.4:5 3.33 3.33 3.29 3.29 

67.69 106.72 317.28 491.69 22.79 33.11 23.71 79.61 ·22.17 27.36 6.16 55.69 

88.18 131.39 127.18 346.'76 59.26 65.12 94.05 218.43 45.29 46.55 66.58 158.42 

7.63 5.02 . . . . 12.65 . . . . . ... . ... .... .09 .... .... .09 

~.95 1.53 .4:6 5.94 .68 38:43 .68 .07 .07 

58.73 104.05 65.72 228.50 46.01 61.31 145.75 33.42 37.66 17.29 88.37 

11.58 13.52 .65 25.'75 19.1:5 5.17 .... 24.30 8.71 10.36 .... 19.07 

5:~~ 5.75 11.66 5.16 3.68 .... 8.84 4.14 2.90 .... 7.04 

• • • Ill . . . . .71 .15 . ... . ... .15 . . . . .... .... .... * Tb1• townabip al•o ~tains bltu.ino-us coal. 

Total in all overburden categories 

In beds Township 

2 1/2 to total 

5 teet 

thick 

579.09 .... 579.09 14.14 525.97 .... 540.11 .... 626.58 .... 626.58 . ... 495.60 495.60 

.... 501.26 240.72 741.98 

.... 275.04 843.94 1,118.98 

.... 180.20 1,149.74 1,329.94 

4.92 1,149.40 1,154.32 

194.21 1.59 976.03 1,171.8~ 

169.01 115.56 575.32 859.89 

121.34 201.00 53.75 376.09 

21.24 .... 21.24 

93.46 10.62 .... 104.08 

42.24 164.48 .... 206.72 65.9'7 22'7.69 .... 293.66 

66.89 22'7.24 .... 294.13 

67.98 "·212.40 .... 280.38 29.'74 286.74 .... 316.48 .... 336.30 .... 336.30 

.... 400.73 .... 400.73 

. ... 356.12 96.29 452.41 .... 296.30 445.33 '741.63 

.... 252.97 255.79 508.76 284.41 40.78 325.19 25.20 96.86 28.12 150.18 15.62 90.83 .... 106.45 

4,063.79 17,159.31 40,996.39 62,219.4:9 

1.33 2.65 3.98 .... 3.13 .67 3.80 2.66 .... 2.66 1.15 .... .... 1.15 1.67 .... . ... 1.6'7 

18.99 57.90 5.47 82.36 5.48 5.0'7 8.93 19.4.8 93.39 105.52 51.31 250.22 41.58 23.17 .60 65.3.5 101.81 14a.05 .... 244:.86 

.49 .... . ... .• 49 

10.05 10.05 112.65 16'7.19 347.15 626.99 192.73 243.06 287.81 723.60 7.72 5.02 .... 12.'74 

4.70 1.53 .46 6.69 138.16 203.02 121.4:4 4:62.62 39.4:2 29.05 .65 69.12 15.21 12.33 .... 27.54 .86 .... .... .86 
'1'.2211., R.SR. 51.4.6 1M.23 14.73 200.42 19.58 89.00 .54 109.12 12.30 62.30 .... 74.60 83.34 285.63 15.27 384.14 '1'.2311., R.SR. ~9.~7 41.30 16.87 15'i'.64 38.51 70.79 8.72 118.02 42.67 52.17 .... 94.84 180.55 164.26 25.59 370.40 

-i!T.2411., R.83W. 45.09 65.52 8.19 118.80 17.87 12.69 .... 30.56 17.20 5.31 .... 22.51 80.16 83.52 8.19 171.87 .wr.au., R.84w. .eo .eo .... .... . ... .eo .... .eo -11To2211., R.84W. 4.69 9.05 12.00 2fl.74 1.79 1.38 . . . . 3.17 .50 .... . ... .50 6.98 10.43 12.00 29.41 

'1' .23:1 •, Ro84W • 26.94 63.07 130.14 220.15 19.63 10.64 .26 30.53 1.10 .... 1.10 47.6'7 n.71 130.40 251.78 -11To24B., R.84W. 9.59 5.76 .... 15.315 6.64 .92 .... '7.46 6.44 ~23 . ... 6.6'7 22.57 6.91 .... 29.48 .wr.2211., R.B5W. .50 .... .... .50 .... .... . ... .... . ... . ... . ... . ... .50 . ... . ... .50 'f.23B., R.SP. .70 .... .70 .... .... . ... . ... . .... .... . ... . ... .70 .... .70 '1'.201. 1 R.8BW • .... 6.28 . ... 6.28 .... . ... .... . ... . ... .... . ... . ... . ... 6.28 . ... 6.28 

'l'.lUJI., R.88W. 3.45 27.49 .... 30.94 5.67 2.63 .... 8.30 5.86 4.02 . ... 9.88 14.98 34.14 .... 49.12 '1'.201., R.89W. ..... 94.44 . ... 94.44 .... .... 94.44 . ... 94.44 '1'.2111., R.89W. 11.39 45.90 .... 57.29 4.00 31.89 .... 35.89 .90 4.69 .... 5.59 16.29 82.48 . ... 98.77 '1'.2211., R.89W. 1.'79 .98 .... 2.'77 .28 .51 .... .'79 .21 .32 . ... .53 2.28 1.81 .... 4.09 '1'.23R., R.891f. .38 ... ., . . . . .38 .... . ... . ... .... .... . ... . ... . ... .38 .... .... .38 

'1' .25B • 1 R.89W. 4.43 6.0'7 1.34 11.84 .... .... .... . ... . ... .... .... . ... 4.43 6.07 1.34 11.84 '1'.261., R.891f. .... .6'7 . ... .67 .... .... . ... .... .... . ... . ... . ... .... ~67 .67 '1'.271., R.89W. .... 6.61 3.12 9.73 . . . . .... . ... . ... .... .... . ... . ... . ... 6.61 3.12 9.73 '1'.121., Ro90ffo .... .73 .73 .... .... . ... . ... .... . ... . ... .... . ... .'73 .73 -IIT.1811., R.90W. .... . ... 2.23 2.23 .... . . . . . ... . ... . ... .... . ... . ... . ... . ... 2.23 2.23 

'l.13B., R.91W. • 36 .6'7 1.M 2.3'7 . . . . . . . . . ... . ... .... .... . ... . ... .36 .67 1.34 2.3'7 'l.1U., R.91W. .30 .... .... .30 .... .... .... . ... . ... . ... . ... . ... .30 . ... . ... .30 T.16B., R.91W. .90 . . . . .90 . . . . . ... . ... . ... . ... . ... . ... .... .90 . ... .90 '1'.1'7B., R.91W. 13.46 . . . . 13.46 .... . ... .... . ... . ... . ... . ... . ... 13.46 .... 13.46 'l.1811., R.91W. 11.'76 198.32 .... 210.10 . . . . .... . ... . ... . ... . ... .... .... 11.'78 198.32 . ... 210.10 

T.191f., R.91W. 84.83 .... 84.83 u>:;o .... .... . ... . ... . ... 84.83 . ... 84.83 '1'.1211., R.9211. 1.7'7 .... 1.'7'7 1.33 .... 11.73 .... .... . ... . ... 12.17 1.33 . ... 13.50 'l'o151f., R.9211. .... .'76 .76 .... . . . . . ... . ... . ... . ... . ... . ... . ... .'76 .'76 T.16X., R.92W. .... .67 3.23 3.90 .... . ... .... . ... .... . ... . ... . ... . ... .6'7 3.23 3.90 '1'.17B., R.921'. .... 1.12 . ... 1.12 . ... .... . ... . ... .... . ... . ... . ... . ... 1.12 . ... 1.12 

'l.l8B., R.921J. 1.33 42.29 43.62 .... . ... .... .... .... . ... 1.33 42.29 43.62 

Q) T.19B., R.92W~ 148.53 105.31 253.84 .... 51.12 . ... 51.12 . ... . ... 199.65 105.31 304.96 U) T.l9B., R.93W. I .47 1..45 .... 1.92 .... 24.'71 .... 24.'71 . ... 3.44 . ... 3.44 .47 29.60 . ... 31").0'7 

. Countt to _tal '710.12 1,571.68 868.25 3,150.05 327.81 558.45 1'74.23 l,Oeo_!4~ -- 238!~9 3p4.5~- ----~Q!Q3~_'r_4 1 .. ~6 •. 1,t --.?..._434.§.! l._l~ .• f?l.. L_843.?8 

~countr 

~~. 1.38 .... . ... 1.38 .... . ... .... . ... .... . ... . ... . ... 1.38 .... . ... 1.38 'I'.MJJ., R.6'7W. 22.62 .... . ... 22.62 . ... .... .... . ... . ... . ... . ... . ... 22.62 .... . ... 22.62 

'1'.3511., R.6'7W. 52.38 .... . ... 52.38 .... . ... . ... . ... . ... . ... . ... .. · .. 52.38 .... . ... 52.38 

T.36R., R.6'7W. 9.99 .... 9.99 .... . ... . ... . ... .... .... . ... . ... 9.99 .... 9.99 

'1'.381., Ro6'7W. 1.3'7 9.'78 .... 11.15 .... .... .... . ... . ... . ... . ... . ... 1.3'7 9.78 . ... 11.15 

'1'.30., R.6'7W. 8.'75 .92 .... 9.67 .... . ... .... . ... . ... . ... . ... . ... 8.75 .92 .... 9.67 

'l.40lf., R.IS'7W. .25 . . . . . ... .215 .... . ... .... . ... . ... . ... . ... . ... .25 .... .... .25 T.4rlB., R.6'7W. 5.93 .... . ... 5.93 .... . ... . ... . ... . ... . ... . ... .... 5.93 . ... 6.93 

T.3211., R.68W. 2.86 1.57 4.43 .... .... . ... . ... .... . ... . ... .... 2.86 1.57 4.43 

T.33lf., R.68W. 8.19 .28 .... 8.4'7 .... . ... . ... . ... .... . ... .... . ... 8.19 .28 .... 8.4'7 

T.34B., R.68W. 22.58 .64 .... 23.22 . . . . . ... .... . ... .... .... . ... .... 22.58 .64 . ... 23.22 

'1'.35B., R.68W. 12.43 .... .... 12.43 . ... . ... . ... . ... .... .... . ... . ... 12.43 . ... . ... 12.43 

T.3611., R.68W. 25.04 .... 25.04 . ... .... . ... .... . ... .... . ... .... 25.04 . ... 25.04 

T.3'7B., R.68W. 38.24 8.41 .... 46.65 . ... .... . ... . ... .... . ... .... .... 38.24 8.41 . ... 46.65 

'!'.sew., R.68W. 100.32 178.00 .... 278.32 .... . ... . ... . ... .... .... . ... .... 100.32 1'78.00 . ... 2'78.32 

'1'.39B., R.68W. 169.51 56.22 2.21 227.94 .... . ... . ... .... .... .... . ... . ... 169.51 56.22 2.21 227.94 

'1'.40B., R.6811. 4.83 .... .... 4.83 .... . ... . ... . ... . ... ... , .... .... 4.83 .... . ... 4.83 

'1'.41B., R.68W! 2.5a ..... .... 2.52 .... . ... . ... . ... .... . ... .... .... 2.52 .... .... 2.52 

T.~2lJ., R.69W. 8.60 .... . ... 8.60 . ... .... . ... . ... .... ..... .... .... 8.60 .... .... 8.60 

'1'.36lJ., R.691f. 32.79 .... .... 32.79 .... .. ...... .. ...... . ..... ..... . ... . ... . ... 32.79 .... . ... 32.'79 

* 'fhis township a1so conta1na bituminous coal. 
'l'o.w.tp 

'1'.3'1I., 8.6911. '1'.~ •• 8.691r. '1'.~ •• 8.691r. 'l'.<tOB., 8.691r. '1'.4l.IJ., 8.691r.. 

'1'.3611., •••• 'I' .3U.. •• "1W. 'l'.<tOB., R.~. 

'I' .4l.IJ. • •• '7011. '1'.~ •••• ., •• 

'l'.<tOB •• 8.'1JJI. '!.41B., 8.'1D. '!.32B ..... ., •• '!'.aM., •• ,... 'l'.a'l'll., L.,.. 

'!'.-•• L~. 

., ....... .,.. 0) '!.~ ••.•• .,.. .. '1'.~ •••• .,.. 'l'.:sa •••• ., •• 

"·-·· 8."1311. '!.-•• 8."1311. '1'.~ •• 8."1311. or.~ •••• .,.... '!'.:sa •••• ., •• 

'!.3111 •••• ., •• or.aa-•••• ., •• '1'.3"111 •••• ., •• ·or ..... a • ., •• or.aw •• a • ., •• 

or • .-•••• ., •• '!.4l.IJ., •• ., •• or.aa.., •• ., •• '!'.:sa •••• ., •• ., ....... .,... or .• aa •• a.'lllll. 

or.au •• a • .,... .,.~ ..•. ., .. 

'l.folll •• a."'IW. 

or.aa •••• ., •• 

or.aa •••• ., •• "·-·· .. ., .. "·-·· '!.«Hr .... .. ., ., •. •• '! ....... .,.. 

., ..... 8."1'111. 

or .<tOll. • a • .,.,.. 

~ total 

Table 11.--0r1g1nal reserves, ln all categories, or aub-b1tum1nous coal ln •7omlng 

(1n millions or short tona)--Oont1uued 

0 to 1,000 feet overburden 1,000 to 2,000 feet overburden 2,000 to 3,000 feet overbur:len 

lD becla a 1/2 to Total Total Total 5 teet 

thick: 

Converse Oountr--Oont1nued 

155.10 .... . ... 155.10 . ... .... .... . ... . ... . ... .... . ... 136.56 .... 136.56 .... .... . ... . ... . ... . ... .... . ... 112.70 26.48 .... 139.18 . ... .... . ... . ... . ... . ... .... . ... •U.16 13.05 .... 54.21 . ... .... . ... .... . ... . ... . ... . ... 4.12 .... . ... 4.12 . ... .... . ... . ... .... . ... . ... . ... 9.31 .... . ... 9.31 . ... . . . . . ... . ... . ... . ... .... . ... 34.58 34.52 .... . ... .... . ... . ... . ... . ... . ... 3'1.04. :se.Q:s 5.75 81.62 .... .... .... . ... .... . ... . ... . ... 1.59 4.43 6.02 .... .... . ... . ... . ... . ... . ... . ... .... 13.28 39.83 53.11 . ... .... .... . ... . ... .... .... . ... 5.04 .... 491.18 496.22 . ... . ... . ... . ... .... . ... . . . . . ... 2.26 ..... 229 .. 42 231.68 . ... .... . ... . ... . ... . ... .... . ... l..il& .... . .... 1.52 . ... . . . . . ... . ... . ... . ... .... . ... .oe. ...... . ... ·.08 . ... . . . . . ... . ... . ... . ... .... . ... .as .... . ... .28 . ... . ... . ... . ... . ... . ... .... . ... 1.96 .... 1.96 . ... .... . ... . ... . ... . ... .... . ... '1.30 7.30 .... .... .... . ... . ... . ... .... . ... 3.n 58.41 410.47 472.8'7 .... . ... . ... . ... .... . ... . ... . ... 175.24 175.24 13:75 .... .... . ... . ... . 1'1.48 1.81 .... 19.29 .... . ... 13.75 4.84 . ... . ... 4.84 

1.17 .eo .... 1.77 . ... . ... . ... . ... . ... . ... .... . ... 26.42 14.2'1 a9:85 40.69 .... .... . ... . ... . ... . ... . ... . ... 4:2.09 146.95 228.89 .... .... .... . ... . ... . ... . ... . ... ·:si 34.0'1 51.11 85.18 .... .... . ... .... . ... . ... .... . ... .... . ... . .51 .... .... . ... .... . ... . ... . ... . ... 14:.00 4.14 .... 18.14 7.23 .... .... 7.23 . ... . ... . ... . ... .... M.56 34.56 3.7'7 .... . ... 3.7'1 . ... . ... . ... .... 16.80 "10.01 .• 74 8'7.65 .... .... .... . ... . ... . ... . ... . ... 6.16 53.26 .... 59.41 . ... .... .... . ... . ... ..... . ... . ... <t0.89 16.'14 .... 57.63 . ... .... . ... . ... .... . ... . ... . ... 65.04. 10.95 .... 75.99 . ... .... . ... .... . ... . ... . ... . ... 23.80 28.64. .... 52.44 .... . . . . . ... . ... 1.88 1.66 .... 3.4& . • 68 .... . . . . .sa .47 . ... . ... .47 .• 86 1.21. .... 2.06 . ... .... . ... .... . ... . ... . ... 14."13 95.03 .... 109.76 .18 .... .... .18 . ... . ... . . . . . ... 34.68 SIB.M 4.44 13'7.10 5.99 .... .... 5.99 .... .... . ... . ... a.oa '18.16 . . . . 74.23 .... . ... . ... .... . ... . ... . ... . ... .<tO 101.08 .... 101.48 .... . ... .... . ... . ... . ... . . . . .... . ... 21.24 . . . . . ... 21.24 .... . ... 6.89 .as .... 6.9a 3.92 . . . . . ... 3.92 3!40 . . . . . ... 3.40 

1.00 .18 . . . . 1.12 .... .... . ... . .... . ... . ... . ... . ... 3.'10 6.31 . . . . 10.01 . . . . .... . ... . ... . ... . ... . ... .... .,.M .... . . . . 7.04 .... . ... . ... . ... . ... . ... . ... .... ·.10 . . . . . . . . .10 i:s-7 . ... .... i:a? .... . ..... 6.24 . . . . . ... 6.2-& .... . ... .69 . . . . . ... .69 

12.30 . . . . . . . . 12.30 .... .... . ... .... . ... . ... • • ~ If .... 2.49 . . . . . . . . 2.49 .... .... .... .... . .... .... . ... . ... 1,426.68 1,803.02 1.466.24 4.085.94 58.63 .... .... 58.63 9.40 .... . ... 9.40 

Total 

'l'ownahlp total 

155.10 . ... . ... 155.10 136.56 . ... 136.56 112.70 26.48 . ... 139.18 41.16 13.05 . ... M.21 4.12 . ... . ... 4.12 

9.31 . ... . ... 9.31 34.52 34.52 37.04 38.83 5.75 81.62 1.59 4.43 6.02 . ... 13.28 39.83 53.11 

5.04 . ... 491.18 496.22 2.26 . ... 229.42 231.68 1.52 . . . . . ... 1.62 .oe . ... . ... .oe .28 . ... . ... .28 

1.96 . ... 1.96 '1.30 '1.30 3.99 58.41 410.4'1 4'12.8., 1'75.24 1'15.24 36.07 1.81 . ... 3'1.88 

1.17 .eo . ... 1.'1'1 26.42 14.2'1 40.69 42.09 146.95 39.85 228.89 34.0'1 51.11 85.18 .51 . ... . ... .51 

21.23 4.14 . ... 25.37 3.77 34.56 38.33 16.90 70.01 .'14 87.65 6.15 53.26 . ... 59.41 40.89 16.'14 . ... 5'1.6$ 

65.04 10.95 . ... '15.99 23.90 28.54 . ... 52.44 3.oa 1.55 . ... 4.58 .85 1.21 . ... 2.06 14.91 96.03 .... 109.94 

40.61 ve.Q4 4.44 143.09 2.08 72.16 . ... '14.23 .<tO 101.08 . ... 101.48 21.24 ·:Oi . ... 21.24 14.21 . ... 14.24 

1.00 .12 . ... 1.1.8 3.70 6.31 . ... 10.01 '7.04 . ... . ... 7.04 .10 . . . . .... .10 8.eo . ... . ... e.eo 

12.30 .... . ... 12.l!O 2.49 . ... . ... 2.49 

1.494.71 1,203.02 1,456.24 4.153.9., 
~County 

'r.~ •• ·---1 8.Mf .... , .... ,. 8.641 ····' .... } ····' •••• f . ~ .. [ .... , ····' .... f e.6•1 .... , .... (~. 8.64 

~County 

'r.:~& •• a.aar. 1.26 .... . ... 1.2~ .... .... . . . . . ... .... . ... . ... .... 1.25 . ... 1.26 

'r .a"lll· • •• i(JII. .... .6'1 . ... .6'1 .... .... . ... . ... .... . ... . ... .... .6'1 . ... .&'1 

'r.-•• a.IOW. 1.56 .... 1.~6 .... .... .... . ... . ... . ... 1.56 . ... 1.56 

'r.aa •• a.saow. a.u .18 .... 2.M .20 . ... . ... .20. .... . ... . ... . ... 2.65 .19 . ... 2.86 

'r .31111. • •• tiiOW • 2.69 .... . ... 2.68 2.9-i .... .... 2.94 .... . ... .... . ... 5.63 . ... . ... 5.83 

'r.2"1'11 •• a.eaw. i:3i .... . ... 3.32 2.21 .... 5.53 7.52 5.75 2.88 16.15 10.84 7.jJ6 2.88 21.18 

'r.2'7JI •• B.MW. .... 1.33 .. . . . .... . ... 1.33 . ... 1.33 

'r .sa.. a. tMW. 9.98 .5.63 15.61 12.'77 1.13 il.3.90 14.46 .... 14.46 37.21 6.76 o.n 'r.aa •• a.tHilf. 4.62 1.'79 5.38 11.'78 1.98 1.93 2.31 6.22 2.0]. .26 2.27 8.61 3.98 7.69 ao.aa 

'r.aa •• a.v.. . . . . .... . ... . ... 32.45 2'7.11 45.96 105.52 69.27 45.'72 192.0'7 ~'7.06 101.'72 72.83 238.03 41.2.58 

'r.aa •• a.v.. 9:29 .... 9:2i 19.58 10.54 64.'77 94.89 19.58 10.54 64.7'1 H.89 

'r.SSIJ •• ··-· 7.03 2.38 18.70 5.26 3.06 .89 2.48 .... 2.48 u •. 7'7 5.« 10.18 :so.3$ 

.'r.sa •• a.v.. 3.91 1.95 1.78 7.64 3.21 5.58 .89 9.68 5.'70 .56 .... 6.26 12.82 8.08 2.67 23.58 

'r.... B.D. .36- ·:ga .... .36 .... .... .... .... . ... . ... .36 . ... .36 

'r •••• B.D. . . . . !'••• .92 .... .46 .... .46 .... . ... . ... .... .... 1.38 . ... 1.38 

'r •••• •••• ,.02 '·08 .... 8.10 2.'73 3.81 .... 6.54 1.40 1.'73 . ... 3.13 8.15 8.62 . ... 1'7.7'1 

'r •••• B;.U. 3.ao 12.25 .... 15.,5 .... .... .... .... . ... .... 3.20 12.25 . ... 15.U 

'r •••• •••• 3.99 .... . ... 3.99 1.17 .... . ... 1.17 .... . ... . ... .... 5.16 . ... . ... 5.16 ,.u .. •••• 1.37 .... . ... 1.3'7 . ... .... . ... . ... .... .... .... . ... 1.3'7 . ... . ... 1.3'1 

'r •••• •••• 3.63 .... . ... 3.63 . ... .. . . . . ... . . . . . ... .... .... . ... 3.63 . ... . ... a.a 

'r •••• •••• 2-Hi ...... . ... 2.'14 .... . ... . ... .... 2.l1-<& . . . . . ... 2.74 

'r.la •• a. a. .... . ... . ... .95 . .... . ... .95 5.24 . . . . . ... '5 •• 4 6.19 . ... 6.19 -'r.a •• ..... .,.4'1 6.18 .... 9.65 6.29 .3'7 . ... 6.66 2.'75 .... .... 2.175 12.51 6.55 . ... 19.06 

...,. Mlial. 5'1.10 ae.o• 16.<&5 110.09 73.27 45.66 50.05 168.88 130.41 64.56 259.'72 454.69 261.28 146.26 326.22 '733.'16 Gil 

01 

!!!!~County 

'r ..... a.ear. .u •7 •• . ... .23 ..... . ... .23 . ... .23 

'r.ca •• a.tMW. 10.35 • 09 10.,, 4.13 .18 .... 4.31 2.9'7 .01 .... 2.98 17.45 .28 1'1.'13 

, ..... a.v.. 21.89 27.19 1.96 51.13 .62 14.10 .... 14.'72 .09 9.66 .... 9.'75 22.'70 50.95 1.95 75.10 

'r ...... ··-· .03 .... . ... .oa 1.'7, .02 .... 1.'76 1.91 .33 .... 2.24 3.68 .35 . ... '·OS 'r • ..-•• a.ee.. 1'.08 '·70 .... 18.72 2.83 . ... .... 2.83 .... . ... .... .... 16.85 4.70 . ... 21.55 

't.e~~ •• a.v.. .M .... .34 .... . ... ;:<>5 .... .... . ... . ... .34 . ... .34 

-'r ....... ..,.. 6.11 .76 .... 6.8'7 3.05 .... .... .... 9.16 .76 . ... 9.92 

'r ..... • • • ..,. • 16.22 ,.90 .... 20.12 4.16 .62 .... 4.'78 .29 .... .... .29 19.6'7 5.52 . ... 25.19 

'r ..... ··-· 13.-&'7 a.oo .... 16.4'7 5.75 1.29 .... '7.04 .90 .... .... .90 20.12 4.29 . ... 2-&.u 'r ........ ~. 6.93 .... . ... 6.93 .... .... . ... . ... .... .... . ... .... 6.93 . ... . ... 6.93 

~ ....... ~. 18.37 1.,1 .... 18.78 3.35 . ... .... 3.35 2.49 . ... ·-··· 2.49 24.21 1.4:1 . ... 25.62 

'r.-tu •• •·-· ... .... .... ·.24 . . . . . ... .... .... .... . ... .... .24 . ... . ... .24 

'r.ca •• a.tMIIIJ. 9.26 .... 9.2:5 .1:5 .... .... .13 .... .... .... . ... 9.:56 . ... 9.36 

'r ..... ··-· 1.63 .12 u:i~ 2.'75 .... .... .... . ... . ... .... .. : . .... 2.63 .12 8.'16 

'r ..... ··-· e.os 5.88 30.09 .... .... . . . . . ... .... .... . ... . ... 9.05 5.89 15.15 :50.09 

'r.4u •• a.SKJII. 1.50 .... 1.50 .... . ... . ... .... . . . . . ... . . . . 1.50 . ... 1.50 

'r ....... :too.. 3.1'1 • 66 .... 3.83 1.'76 .... . ... 1.'76 .... .... . ... .... 4.93 .66 . ... 5.59 

~ '-tal 1.32.88 .. .,. 17.10 188.70 27.52 16.21 .... 43.'7:5 8.65 10.00 .... 18.._65 169.05 '74.93 1'7.10 261.08 

.l2!!!Wm Countz 

LJ~~ •••• . .... ..... 23:38 12:24 . ... ~~:62 ..... I 1e:ul ..;.1 23.36 , ....... ., .. . . . . . ... 23.:58 .... 36.68 'r ....... ., •• 1.18 .... .... a4:96 .... 78.16 . ... '78.16 1.18 '78.16 '19.34 

'r.4111.~ •• ., •• 29.~ .... . . . . .... 7.47 . ... '7.4'7 29.45 92.0 1.21.88 , ....... ~ .. ., •. 31.81 . . . . .... 93.46 .... .... . ... .... 31.81 93.,6 1.26.8"1 
To1111ahip 

T.4:"11J., B.76W. T.f811 • ., Bo76W. T.4:9JJ., B.76W. 

T.50JJ., B.76W. 'fo51J • ., ft.76W. 

T.52Jf., B.76W. T.53JJ., R.76W. T.4:l.ll., R.77W. 

T.4:2JI., B.77W. T.4:3JJ., R.7711. 

'f.4:4:Jf., R.7'1W. 

To.t5JJ., R.77W • ~.4:6:1., R.7'1Yf. 

T.4:"11J., B.77W. T.f811., R.77W. 

T.4:9JJ., R.'7'1W. 

~.50:1., R.77W. 

m T.51JJ., R.'77W. m T.521'., R.7'7W. 

~.53R.,_. R.77W. 

T.4:2JI., R.7Sr. 

To4:3B., R.78W. T.4:4:Jf., R.78W. T.4:5JJ., R.78W~ 

T.46JJ., B.78W. 

~.4."11J., R.78W. T.4:8JJ., R.78W. 

T.4:9JI., R.78W. 'f.&OJJ •• R.78W. T.51B., R.78W. 

T.62JJ., R.78W. T.4:3B., R.79W. T.4.611 •• R.'79W. T.4:"11J., R.79W. 

T.4:811 •• R.'79W. 

T.4:9B., R.79W. 

~.6011., R.79W. 'f.51JJ., R.79W. T.62JJ., R.79W. 

'!.53JJ., R.79W. 

T.4:3B •• B.SOW. T.4:B., R.sow. 'f.4:BJJ., R.sow. T.4.9JJ., R.SOW. 

T.50B., R.BOW. 

T.51JJ., R.SOW. T.52JI., R.SOW. T.53Jf., R.sow. 

T.4:4:Jf., R.BlW. T.46JJ •• R.Bl'lo 

0 to 1,000 teet overburden 

In beds 

Table 11.--0riginal reserves, in all categories, of sub-bituminous coal in Wyoming 

(in millions ot short tons)--Continued 

1,000 to 2,000 teet overburden 2,000 to 3,000 teet overburden Total 

In beds 

2 1/2 to Total Total Total 2 l/2 to 5 teet 5 teet 

thick thick 

Johnson County--Continued 

37.17 7.08 .... 44.25 . ... 90.27 . ... 90.27 . ... .... . ... 37.17 8.85 57.53 66.38 .... 95.58 . ... 95.58 .... .... . ... . ... 8.85 .... 113.99 . ... 113.99 . ... 106.20 . ... 106.20 .... . ... . ... .... . ... .... 205.32 205.32 . ... . ... . ... . ... . ... . ... . ... . ... . ... .... 145.85 156.47 302.32 . ... . ... . ... . ... .... . ... . ... . ... . ... .... 185.97 174..34 360.31 . ... . ... . ... . ... .... . ... . ... . ... . ... 129.59 .... 129.59 . ... . ... . ... . ... . ... .... . ... . ... 3.08 .06 3.14 .... ..... . ... . ... 3.08 27.16 13.67 112.3'7 153.20 51.56 4.14 2.71 58.41 .... .... . ... . ... 78.72 .77 .... . ... .7'7 114.76 .... . ... 114.76 34.47 . ... . ... 34.47 150.00 

.... . ... 23.36 . ... 23.36 55.22 106.20 . ... 161.4.2 78.58 7.08 .... . ... 7.08 10.62 196.47 . ... 207.09 6.37 63.72 . ... 70.09 24.07 35.40 .... . ... 35.40 . ... 302.67 . ... 302.67 . ... . ... . ... . ... 35.40 49.56 .... . ... 49.56 . ... 313.29 . ... 313.29 . ... .... . ... . ... 49.56 51.33 .... . ... 51.33 . ... 313.29 . ... 313.29 .... . ... . ... . ... 51.33 

33.12 14.87 .... 47.99 . ... 318.60 . ... 318.60 .... .... .... . ... 33.12 35.27 416.16 451.43 .... .... . ... .... . ... . ... . ... . ... 35.27 43.14 413.81 13.48 470.43 .... .... . ... . ... . ... . ... . ... . ... 43.14 74.76 227.19 168.71 471.26 .... .... . ... .... . ... . ... . ... . ... 74.76 59.59 33.32 13.00 105.91 .... .... . ... . ... . ... . ... . ... .... 59.59 

9.5'1- 12.24 39.74 61.55 .... . ... . ... . ... .... .... 9.5'7 61.60 6.84 .... 68.44 112.44 . .. . . ... 112.44 .... . ... . ... . ... 174..04 .... .... . ... . ... 66.20 . ... .... 66.20 .... . ... . ... . ... 66.20 .... . ... . ... . ... 112.57 . ... 112.5'7 .... . ... . ... . ... 112.57 .... .... . ... . ... 93.46 58.41 .... 151.87 . ... .... . ... . ... 93.46 

.... . ... .... .... 67.97 127.44 . ... 195.41 . ... .... .... .... 67.97 

.... .... 57.35 159.30 . ... 216.65 . ... .... . ... .... 57.35 

5.78 .... 5.78 63.'72 127.44 .... 191.16 . ... . ... .... .... 69.50 

137.70 70.21 .... 207.91 .... . ... .... . ... . ... .... .... .... 137.70 

114.83 9.97 .... 124.80 .... .... . ... . ... . ... .... .... .... 114.83 

48.99 .... 48.99 .... . ... .... .... .... . ... 48.99 

32.77 19.1'7 .... 51.94 12.1'7 .... .... 12.1'7 . ... .... .... .... 44.94 

.... .... . ... .... 31.86 . ... . ... 31.86 .... .... .... . ... 31.86 

.... .... .... . ... 46w73 . ... . ... 46.73 .... .... .... 46.73 

.... .... . ... . ... 55.22 . ... .... 55.22 . ... .... .... .... 55.22 

61.63 1'7.19 '78.82 35.40 .... .... 35.40 . ... .... .... .... 97.03 

73.66 39.34 8.23 121.23 .... .... . ... .... . ... .... .... .... 73.66 

4'7.44 2.43 49.8'7 .... . ... .... .... . ... .... .... .... 47.44 

4.08 72.05 76.13 .... . ... .... . ... . ... .... .... . ... 7.65 .... 30.59 38.24 .... .... . ... .... . ... .... .... .... 7.65 

3.5'7 2.79 .... 6.36 .... . ... . ... . ... . ... .... .... .... 3.57 

21.56 3.00 .... 24.56 . ... . ... . ... .... . ... .... .... .... 21.56 

'7.88 23.01 .... 30.89 . ... .... .... .... . ... . ... .... .... 7.88 

15.80 11.78 .... 27.68 .... . ... .... . ... . ... .... .... .... 15.80 

.... 139.80 .... 139.80 . ... .... . ... . ... .... .... .... .... .... 12.69 141.42 154.1! .... . ... . ... .... . ... . ... .... . ... 1.41 .... 249.31 250.72 .... . ... .... .... . ... . ... .... . ... 1.41 

27.69 27.69 .... .... .... . ... .... . ... . ... . ... 26.41 6.51 .... 32.92 .... . ... . ... . ... . ... . ... .... .... 26.41 

10.79 .... .... 10.79 .... .... . ... . ... .... .... . ... .... 10.'79 

In beds Township more than tota1 10 feet 

thick 

97.35 . ... 134.52 153.11 . ... 161.96 220.19 . ... :.!<=0.19 

205.32 205.32 145.85 156.47 302.32 

185.97 174.34 360.31 129.59 . ... 129.59 .06 3.1f 17.81 115.08 211.61 . ... . ... 150.00 

106.20 . ... 184:.78 260.19 . ... 284.26 302.67 . ... 338.07 313.29 . ... 362.85 313.29 . ... 364.62 

333.47 . ... 366.59 416.16 451.43 "413.81 13.48 470.43 227.79 168.71 471.26 

33.32 13.00 105.91 

12.24 39.74 61.55 6.84 . ... 180.88 . ... . ... 66.20 . .... 112.57 58.41 . ... 151.87 

127.44 . .... 195.41 

159.30 . ... 216.65 

127.44 . ... 196.94 70.21 ..... 20'7.91 

9.9'7 .... 124.80 

.... 48.99 19.17 .... 64.11 

.... .... 31.86 .... . ... 46.'73 

. ... . ... 55.22 

17.19 114.22 

39.34 8.23 121.23 

2.43 49.87 

4.08 72.05 76.13 

. ... 30.59 38.24. 

2.'79 .... 6.36 

3.00 .... 24.66 

23.01 .... 30.89 

11.78 . .... 27.58 

139.80 .... 139.80 

12.69 1U.42 154.11 

. ... 249.31 250.72 

27.69 27.69 

6.51 .... 32.92 

.... .. ~ . 10.79 
'! •• .,. •• 1l.8l.W. .:5().61 2.86 .... ;5!.0'7 . ... .... .... . ... .... . ... . ... . . . . ::50.51 2.56 .... :5;5.0'7 

'!.DO ••• R.8D. . ::~ 159.55 164.~ .... . ... .... . ... .... . ... .... . ... 5.28 159.55 164.~ 

'f.SD •• R.8D. ~.36 285.13 369.65 . . ... . ... .... .... .... . ... . ... .... 49.1'7 35.35 285.13 369.55 '!.sa •• a.e1w. f5.81 1V.2S 362.61 42'7.'70 .... . ... .... . ... .... . ... .... .... 45.81 19.28 362.61 42'7.'l0 'f.U. •• R.81W. . . . . . . . . 98.83 98.83 .... . ... .... . ... . ... . ... .... . ... .... . ... 98.8:5 98.8:5 

'!.SD. • B.S.. 19.M 3.13 13'7.M 159.81 .... .... . ... . ... .... . ... .... .... 19.$4 3.13 13?.$4 159.81 

'!.5211. • R.821J. 3.3~ 2.40 U8.0'7 423.86 .... .... . . . . .... .... . ... . ... .... 3.:SV 2 • .0 418.0"7 423.86 

'!.5811 •• 8.8211. • 2S 10.f,li 163.80 1'7f.5:S .... .... . ... .... .... . ... .... .... .28 10.<15 163.80 1'74.53 '!.5211 •• Jl.83W. 3.2'7 6.36 9.80 19.43 .... .... .... . ... . ... . ... .... .... 3.2'7 6.36 9.80 19.43 

~t)' total - 1-!3'74.81 2,585.14 2,682.98 6,642.98 9'78.'75 2,391.62 2.'71 3,3'12.9S 119.44 26'7.'79 .... ~'7.23 2.4"13.00 5.244.45 2,685.69 10,403.14 

~ Countz 

'!.26 •• ,R.l.l.:lll. .34 .68 . . . . 1.0lil . ... . ... . ... . ... .... .... .... . . . . .M .68 . ... 1.02 ., •••• ,8.n•. 3.is 

69:7~ 126:7? 3.19 .... .... 4:6~ .... . ... .... . ... 3.19 3.19 

t1!.21Jf.,R.ll6W. 196.55 .... •.• 62 .... .... . ... .... . . . . . ... '7f..4D 1.26."1'7 201.17 

tlf.2211.,R.116W. 3i:6ti 19.52 .... 19.52 3.18 . ... 3.1S .... . ... aa:o6 

22.'10 .... 82.'ft) 

tlf.a.:..,R.ll611. . . . . . ... :U.69 29.64 .... .... 29.64 20.06 .... . . . . 81.39 . ... . ... 81.39 

tlf.2511 • .,R.ll6W. 25.'7e . . . . 25.'76 24.86 . ... 24.85 15.05 .... . . . . 15.05 65.66 . ... 65.66 

-.r.lH •• R.ll"'lf. . ... . . . . 121.'71 121.'71 . ... . ... 52.'72 52.'72 .... . ... .... . . . . . . . . . ... 1'74.0 174.0 

'!.20B. ,8.11"11f. . . . . . ;:9$ n3.ll 413.11 . ... 112.32 112.32 .... .... . . . . . ... . ... 525.0 525.0 

'f .2111 •• 8.11"11f. 4.-&S 12.U .... 67.25 . ... 87.25 .... .... .... . ... . ... '15.8& 4.42 '79.66 

Cauat7 total eo.VE sn.v'l 666.01 824.96 54.49 '75.05 166.04 394.58 35.11 .... .... 35.11 150.58 1'13.02 831.05 l,l.S4.65 

.I.U.tsml ~ 

'!.36 •• ., 8.'7"11f. .24 .... .. ... .2-& . ... . ... . ... . ... . ... . ... . ... . ... .24 . ... . ..... .24 '!.:sa., a • .,.,.. .66 .... . ... .65 . ... . ... . ... . ... . ... . ... . ... . . . . .65 . ... . ... .. 66 2.33'1 • ., R.'76W. .o& .... . ... .05 . ... . ... . ... . ... . "' .. . ... . ... . ... .06 . . .. . ... .85 (J) 2.1611., R.'76W. 5~82 .... 5.82 '!••• .... . ... . ... . ... . ... . ... . ... 5.82 . ... 5.82 ..... 2.3'1JI.,- R.'76W; 5.21 6.'75 ... ' 11.96 .... . ... . ... . ... . ... . ... . ... . ... 5.21. 6.'75 . ... ll.96 

'1'.881f • ., R.'16W. 5:96 .91 .... .91 . ... . ... . ... . ... . ... . ... . ... . ... .91 . ... .91 ., ••••• 8.7911. .16 .... 6.11 . ... . ... . ... . ... . ... . ... 5.96 .16 . ... 6.ll 2.3liJ •• Jl.88'. 2.32 .19 .... 2.51 .so& . ... . ... .:so& . ... . ... . ... . ... 2.66 .18 . ... 2.8& 2~311.11 •• a .. aa.. ~2'1 .39 4!' ••• .66 .24: . ... . ... .24 . ... . ... . ... . ... .51 .:sv . ... .to ., ••••• 8.8211. .03 . . . . . ... .os ..... . ... . ... . ... . ... . ... . ... . ... .03 . .. •· .... .03 

2.:SU., Jl.SR. 2.'12 3.89 .... 6.61 2.03 3.6'7 . ... 5.'70 1.00 3.53 . ... 4.53 5.'75 u.oe. . ... 16.84. 'f .:SU •, B.MW. 1.83 .... 1.83 1.39 .... 1.39 .68 . ... . ... .68 3.90 . ... 3.90 ., •••••. 8.881. 14.16 2.65 .... 16.80 11.09 .25 . ... 11.34 7.59 . ... '7.58 u.es 2.90 . ... 35.:'73 '!.sa., 8.8H. 3.'78 3.91 .... '7.69 2.'16 2.-&7 . ... 5.23 1.83 1.14 . ... 2.9'1 8.3'1 '7.52 . ... 15.st .,.,.., 8.a.. 4.38 .12 .... f.51 .51 . ... . ... .51 . ... . ... . ... . ... 4.90 .18 . ... 5.02 

2 ..... 8.aa. 9.18 2.vt .... 12.12 8.26 2.1'7 . ... 10.43 4.98 .99 . ... s.sn 22.-&2 6.10 ~-·· 28.52 t.3'nl., R.86W. 5:5i 8.:5;5 .... 8.33 &:84 '1.14 . ... 'I.U .... 3.5'1 . ... 3.5'7 1t:5i 19.CM .... 1V.CM '!.aa •• 8.8'11. 2.66 .... 8.1'1 . ... . ... 5.84 3.16 . ... . ... 3.16 2.66 . ... 1'7 .l'r !.~ •• 8.8'711. .oa .... . ... .02 .'To& . . . . . ... . .,. 1.66 . ... . ... 1.66 2.42 . ... . ... 2.42 2.3'n(. • R.B'IW. 2.'74 .... 2.'7o& 2.35 . ... . ... 2.~ 1.1'7 . ... . ... 1.1"7 6.26 . ... 6.26 t.aa .• a.~. 4.90 1.'10 .... 6.60 3.52 . ... . ... 3.52 2.45 .... . .... 2.45 10.8'7 1.'m . ... 12.5'7 

Could;7 total. 68 • .,., ~.59 .... 104.36 39.0'7 15.'10 . .... M~'7'7 2 •• 52 9.23 . ... 33.'15 l.l5;5.36 59.52 . ... 192.88 

~Count! 

2.toll., ··-· .66 .... . ... .66 . ... . ... . ... . ... . ... . .... . ... . ... .H . ... . ... .H 2oHifo., Bo6'7Wo 18.53 .... . ..... 12.63 . ... . ... . ... . ... ... ... . ... . . . . . ... 12.63 . ... . ... u.u 

2.6111., a.a"'lf. 1.12 .... . ... 1.22 . ... . ... . ... . ... . ... . . . . . ... . ... 1.12 . ... . ... 1.22 

Calmt7 total 14:.11 .... .... 14.3,;1 . ... . ... . ... . ... . ... . ... . ... . ... 14.31 . ... ···•· 14.31 

• !la1.e ~P al.ao OODta1na b1tua1noaa coal. 
Table ll.--Or1~1nal re{~~v:1il~:n~~tC:~~~~ri~~)~:c~:~i!!!~nous coal in Wyoming' 

-~ to_l.ooo ~eet overburden 1.000 to 2.000 teet overburden 2.000 to 3•000 feet overburden Total in all overburden 

categories 

~p In beds In /:ds 'fownahip 

Total 2 1/2 to Total 2 1 2 to Totai total 5 teet 5 teet thick thick 

~ Ocmntz 

'f .&ell.. •• ve.. :5.86 ~:ia .... 3.86 .... . ... . . . . . ... , ... :5.86 . ... :5.86 '! ...... 8.9911. :5.48 .... 3.66 2.2:5 . ... . ... 2.23 .32 . ... . ... .32 6.03 .18 . ... 6.21 'f.&e~~ •• a.ew. u.es .... . ... 24.85 4.'78 .... . ... 4.'78 . ... .... . ... . ... 29.63 . . . . . ... 29.6:5 'f .&D • • B. 981' • 2.9'7 .... . ... 2.9'7 . . . . . ... . ... . ... . ... .... . ... . ... 2.9'7 . ... . ... 2.9'7 .... &a •• R.981J. ·.6'7 .... . ... ·.6'7 . ... . ... . ... . ... .... . ... . ... . ... .6'7 . ... . ... • • 6'1 

'! ........... 1001'. 9.:55 .48 .... 9.8:5 3.0'7 . ... . ... 3.0'7 . . . . . ... . ... . ... 12.42 .48 . ... 12.90 '!.4.811 •• B.l001'. 3.53 .:59 .... 3.92 . ... . ... . ... .... .... .... . ... . ... 3.53 .39 . ... 3.92 'f .4911 •••• 1001'. 3.18 .... . ... 3.18 . ... . ... s:2i ~·:90 .... . ... ·:oo 3.18 .... . ... 3.18 'f.&lii •• R.lOOI'. 4.21 .... . ... 4.21 3.21 . ... . ... .... . ... 8.32 .... . ... 8.38 '!.5U •• R.l001'. ' .13 .... . ... .13 .... . ... . ... . ... .... . ... . ... . ... .13 . ... . ... ~13 

'!.4U •• R.lOD. 1V.65 16.6'7 .... 36.32 10.96 1.44 . ... 12.40 .... . ... . ... . ... 30.61 18.11 . ... 48.'72 'f.~ •• B.lOD.- 5.29 ·.22 .... 5.51 3.95 . ... . ... 3.95 . . . . . ... .... . ... 9.24 .22 . ... 9.46 'f.4911 •• R.l01W. 1.69 .• 48 .... 2.1'7 .... . ... 2:i9 .... . ... 1.69 .48 . ... 2.1'1 '!.BOI •• B.lOD. 4.V3 .... . ... 4.93 2.62 .... . ... 2.62 . ... . ... 2.19 9.'74 . ... 9.74 '!.U. •• Jt.lOlll. 5.81 '.26 .... 6.10 1.60 . ... . ... 1.60 .01 . ... . ... .01 '7.45 .26 . ... 7.'11 

'f.-.... JDD. 2.48 .... . ... 2.42 7.34 . . . . . ... '7.34 13.61 . . . . . ... 13.61 23.3'7 . ... . ... 23.3'1 

'f.&IIJ .... lOB. 1..48 .... 1.48 1.29 .... . ... 1.29 .88 . ... . ... .88 3.65 .... 3.65 

(J) '! .... .,. •••• ~. 4.86 1.96 . . . . 6.82 . ... .... .... . . . . . ... .... . ... 4.86 1.96 . ... 6.82 (D '!.4BII •• B.w.. 1.1t .... 2.19 -- .30 .... . ... .30 . ... . ... 2.49 . ... 2.49 

'!.BOI • .a.w.. 1.'10 . ·.41 .... 2.11 2.36 . ... 2.36 1.55 .... . ... 1.55 5.61 .41 . ... 6.02 

-'!.5611 •••• 1001'. .... . ... . ... . ... .... 2.88 . ... 2~88 1,.'77 . ... . ... 1.77 1.77 2.88 . ... 4.65 

~~tal ~_._28 ~_!()5 - -

.... ~7.33 ~-:r_1 4.32 . . .. 48.03 21.~3- . ... . ... 21.23 1'71.12 25.3"1 . ... 196.59 

~County 

'!.&all. • B.-7.-. 12.51 69.'75 . . . . 82.26 . ... . ... . ... . ... . ... .... .... .... 12.51 69."15 . ... 82.26 

'!.5111 •••• .,.. 40.&& 1S6.40 . . . . 1'76.94 .... . ... . ... .... . ... . ... .... . ... 40.54 1S6.40 .... 176.94 

'f .5611.. • • .,. • 25.49 133.'7'7 . . . . 159.26 .... . ... .... . ... . ... ..... .... . ... 25.49 133.'7'7 . ... 159.26 

'f .&all. • • • .,.,. • :55.e .... 35.53 .... . ... . ... . ... . ... .... .... . ... 35.53 . ... :55.6$ 

'f • &til. • B • .,.,. • '1.4.8 212."15 . . . . 220.23 .... . ... . ... . ... . ... . ... .... . . . . '7.48 212."15 .... 220.23 

'!.561' •• B.'r71f. 75.aa 285.59 . . . . 360.97 .... . ... .... . ... . ... .... .... . ... 75.a8 285.59 . ... :S60.9'1 

".&u. • •·.,.,.. 21.0'1 . . . . . ... 21 .. 0'7 .... .... . ... .... . ... .... .... .... 21.0'7 . ... . ... 21.0'1 

'f.&a •••• .,.,.. 40.2'1 ..... 40.27 .... . ... . ... . ... . ... .... .... .... 40.27 . ... 4.0.2'1 

'!.5111 •• B ...... 21.01 .... 21.01 .... .... . ... . ... . ... .... .... .... . ... 21.01 . ... 21.01 

'!.IIIII •• R.'la.. 14.'78 202.62 .... 21'7.40 .... ..... . ... . ... .... .... . ... . ... 14."18 202.62 . ... 217.4.0 

'!.5611. • B."18W. 18.01 . . . . .... 18.01 . ... . ... . ... .... .... . ... 18.01 . ... . ... 18.01 

'!.6ft •• B."18W. 11'7.42 ..... .... 117.42 35.41 . ... .... 35 .• 41 . ... .... .... . ... 152.83 . ... . ... 152.83 

'!.5811 •• R."18W. 81.18 .... 84.i8 56.92 .... .... 56.92 . ... .... .... . ... 141.10- . ... 141.10 

'!.5all •• B.'7911. .M .... 1o36 1.70 . . . . . ... . ... . ... . ... .... . . . . . ... .M . ... 1.&6 1.'10 

'!.60 •• B."'W. .. .. . . . . 2.44. 2.44 .... . ... .... . ... . ... . . . . .... . ... . . . . . ... 2.44 2 .• 44 

'!.5611 •• R."'W. 102.15 5.56 107.71 16.00 . . . . . ... 16.00 . ... .... . . . . . ... 118.15 . ... 6.56 123.'71 

'! .&u. • •· .,.. 225.56 117 .1"1 1'7.08 359.80 115.78 .... .... 115.78 . ... .... .... . ... 341.33 11"1.1'7 17.08 476.58 

'!.&a •••• .,.. 109.43 133.22 155.64 398.29 32.49 .... . ... 32.49 . ... .... ··~~· . ... 141.92 133.82 156.64 430.78 

'!.&all •• ··-· 3.40 3.40 .... . ... . ... .... . ... .... .... .... :5.40 3.40 

'!.50.. ··-. 4.21 '78.11 . 26.6"1 108.99 .... .... . ... . ... . ... .... .... . ... 4.21 78.11 26.6'1 '108.99 

'f .51111. • ··-. 24.01 146.'10 .68 171.39 .... .... .... . . ~ . 24.01 146.'10 .68 171.39 

'!.5611 •• a.aa.. 244.67 108.93 2.04 355.64 49.95 .... . ... 49.95 21.89 .... . ~ .. 21.89 316.51 108.93 2.04 42'7~48 

'f .&U.. ··-. 263.83 140.69 284.23 6'78.'75 12 •• 11 .... .... 124.11 . ... . ... .... .... 377.94 140.69 284.23 802.86 

'!.&a •• ··-· 188.S6 2'7 .02 291.88 447.26 60.9'7 .... .... 60.9'7 . ... .... ..... . ... 189.33 2'7.02 291.88 508.23 

'1.6111 •• R.8D. 8.'12 . . . . 81.16 83.88 .... ..... . ... . ... . ... . ... .... . ... 2.72 . ... 81.16 83.88 
'!.~ •• B.Bllf. 1.50 229.'72 . . . . 231.22 . ... .... .... . ... .... . ... . ... . ... 1.50 229.72 . ... 231.22 '!.55 •• , 8.8llf. Ba.4"1 146.0'7 229.54 .... 140:6-7 .... . ... 64:?8 83.47 146.0'7 229.54 '!.5611 •• 8.81 •• 243.08 314.89 13.69 5'71.66 39.09 101.58 .... 64.78 .... . ... 346.95 416.4'7 13.69 '77'7.11 '!.5'711 •• 8.8llf. 249.'78 11.9'7 522.44 784.19 127.95 219.40 .... 347.35 .... . ... . ... . ... 3'77.73 231.3'7 522.4:<1 1,131.54 '!.5811 •• 8.81W. 92.55 95.34 2'75.25 463.14 63.52 89.13 .... 152.65 . ... .... . ... .... 156.07 184.4'7 275.25 615.'79 ,.53 •.. 8.88. 95.39 . . . . 95.39 .... . ... . ... . ... ..... .... . ... . ... 95.39 .... 95.39 '!.&a •• 8.ear. 3'7.38 44.41 . . . . 81.'71 .... .... . ... . ... . ... . ... . ... 37 .:sa 44.41 .... 81.'19 '!.~ •• 8.88. 8'7.92 82.63 1'70.55 147.26 .... 147.26 .... . ... 87.92 229.89 31'7.81 '!.5611 •• 8.8211. 241.55 237.72 84.08 563.35 90.8'7 331.05 .... 421.92 19.60 .... . ... 19.60 352.02 668.'77 84".08 1,004.8'7 '!.SD. • 8.8211. 249.30 8.88 540.8'7 "199.05 124.11 323.53 .... 447.64 . ... .... . ... .... 3'73.41 332.41 540.8'7 1,246.69 

'!.5811 •• 8.8211. 91.9'7 164.68 262.42 519.0'7 42.62 92.62 . . . . 135.24 . ... . ... .... .... 134.59 257.30 262.42 654.31 '!.5311., a.asw. 14.39 14.39 . . . . .... . ... . ... . ... .... . ... . ... 14.39 14.39 '!.~ •• a.asw. '7.:58 30.06 . . . . 37.44 .... . ... . ... .... . ... . ... '7.:58 30.06 . ... 3"1.-&4: '!.&& ••• 8.831. 54.60 80.3'7 134.9'7 256.4'7 .... 256.47 .... . ... 54.60 336.84 391.44 '!.N ••• a.e:sw. 19'7.08 199.8'7 45.65 442.60 103.38 315.64 .... 419.02 1.22 .... . ... 1.22 301.68 515.51 ~.65 862.84 

'!.5'711 •• a.ssr. 25'7.6'7 213.36 710.56 1.181.59 41.46 48.68 3.12 93.26 ..... .... .... . ... 2S9.13 262.04 713.68 1,2'74.85 '!.5811 •• a.e:sw. 65.49 29.34 38'7.'73 482.56 . . . . . ... .... .... . ... . ... 65.49 29.34 38'1.73 482.56 '!.55 •• , a.ear. '7.61 2"1'7.'76 6.'76 292.13 .... 5.44 .... 5.44 . ... . .... . ... .... '7.61 283.20 6.'76 29'1.5'7 ~.5611., a.84w. 19&.23 441.18 '73.55 '707.96 10.09 11.8'7 .... 21.96 . ... .... . ... .... 203.32 453.05 '73.55 729.92 '!.5'711 •• a.ear. 51.86 262.94 1,019.31 1.334.11 .... . ... . ... .... . ... .... . ... . ... 51.86 262.94 1.019.31 1,334.11 

'!.68 ••• 8.84W. 26.30 64..20 314.8'7 405.3'7 .... . ... .... . ... . ... . ... . ... .... 26.30 64.20 314.8'7 405.3'7 '!.50., 8.aar. 12.15 79.66 91.81 .... . ... . ... . ... . ... .... . ... .... 12.15 '79.66 91.81 '! .5611. • R.85W. 5.26 194.00 56.8'7 256.1S .... .... . ... . ... . ... .... . ... .... 5.26 194.00 56.87 266.13 '!.5'711., B.815W. .• 44 98.'7'7 234.11 333.32 .... .... . ... . ... . ... .... . ... .... .44 98.'7'7 234.11 333.32 '! ....... 85W. 10.'70 11.78 56.16 '78.64 .... .... .... . ... .... . ... . ... .... 10.'70 11.78 56.16 '78.64 '!.liP •• B.S.. 6.94 . . . . . . . . 6.94 . ... . ... .... . ... . ... . ... . ... . ... 6.94 .... . ... 6.94 

Coull't7 total a.810.99 &.161.21 5.5'70.51 14.582."11 1,134.'72 1,942.6? 3.12 3,080.51 10'7.49 .... .... 107.49 5,093.20 ?,103.88 5,573.63 l7 ,'7'70.?1 

~County 

CJ) 

lO 

'!.2"'ll •• a.usr. 1.19 .ea . . . . 2.12 .... . ... . ... .... f .... , .... , .... , ····I 1.191 .93 I ... ·I 2.12 

'!.2811 •• 8.118. 1.31 1.'78 . . . . 3.09 . ... . ... .... .... .... .... . ... .... 1.31 1.'78 .... 3.09 

eoant., total 2.50 2.'71 . . . . 5.21 . ... . ... .... ····I ····I ····I .... I •.. -I 2.50 ~ 2.'711 .... I 5.21 

Sweetwater Countz 

'!.20JJ •• 8.90'1. . . . . 29.91 . . . . 29.91 . . . . .... 29:-76 . ... .... . ... . ... . ... 29.91 29.91 

'!.2lll •• 8.80W. 98.20 9.96 108.16 . . . . 29.'76 .... . ... . ... . ... . ... 12'7.96 9.96 1S'7.92 

., ..... 8.90'1. 2.'71 ·1.01 2.39 6.11 . . . . 13:67 .... . ... . ... . ... . ... 2.'71 1.01 2.39 6.11 

'!.20 ••• a.9llf. . . . . 294.83 16.64. 311.4'7 .... . ... 13.6'7 .... . . . . . ... 308.50 16.64. 325.1<1 

'!.2lJI. • 8.9]lf. . . . . 69.48 . . . . 69.48 .... 278.59 .... 278.59 . ... 15.12 . ... 15.12 . . . . 3&3.19 . ... 363.19 

'!.20 ••• 8.9211. 193.26 142.'3 335.69 . ... 260.6'7 . ... 260.67 . ... 20.49 . ... 20.49 4"14.42 142.43 616.85 

'!.2lll •• 8.9811. 1.88 . . . . . ... 1.88 . . . . 25.92 . ... 25.92 . ... 45.61:? . . . . 45.65 1.88 71.5'7 . ... om.~ 

'! .ao•.. a. 93'1. . . . . 6'7.85 . . . . 6'7.85 . . . . 17.44 . ... 17.44 . ... 32.17 . ... 32.1'7 11'7.46 . ... 117.46 

'!.2lll •• 8.93'1. 107.92 . . . . 10'7.92 .... .... . ... .... . . . . . ... .... . ... 10'7.92 .... 10'7.92 

'!.2811 •• 8.9311. .92 16.96 . . . . 1'7.88 .... .... . ... .... . ... . ... . ... . . . . .92 16.96 . ... 1'1.88 

'!.ea •• 8.93'1. . . . . . . . . . ... 3.5'7 . ... . ... 3.5'7 3.5'7 3.5'7 

'!.aoB., 8.98. '7.'75 . . . . 3.&2 11.0'7 . . . . 1.55 .... 1.55 . ... . ... . ... . ... 7.'75 1.55 3.sa 12.62 

'!.2111 •• B.9ft. '79.33 67:88 '79.33 .... .... . ... .... . ... .... . ... . ... 79.33 '19.33 

'!.28JI •• 8.98. 44.60 58.60 1'71.02 .... . ... .... . . . . .... . ... . ... .... 44.60 58.60 6'7.82 1'71.02 

'!.2311 •• R.9ft. . . . . 53.45 . . . . 53.45 .... .... .... . ... .... . . . . . ... . . . . . . . . 53.45 . ... 53.45 

'!.28JI •• 8.9511. 4.51 56.31 . . . . 60.82 .... .... . ... .... . ... . ... . ... .... 4.51 56.31 . ... 60.82 

'!.2311., R.961J. 5.38 . . . . 5 •• 38 .... . ... 5.38 5.:58 

'!.1811., •• ~. 2.21 1.'7'7 . . . . 3.98 6.64 3.98 . ... 10.62 7.9'7 2.88 3.76 14.61 16.82 8.&3 3.'78 29.21 

'!.aoJI. • B.991J. 11.'11 . . . . . . . . 11.'71 .... .... .... .... . ... .... .... . .... 11.71 . . . . . ... 11."11 

'!.2lll •• 8.9911. 11.35 . . . . . . . . 11.36 .... . ... .... . ... . . . ~ .... . .... .... 11.35 . . . . . ... 11.35 

• !111• tolrlulblp a1ao coatairul b1tua1Doua coal • 

...._.1b17 b1tla1Doua coal. 
Townahip 

'1'.1U •• R.l.OOW. 

~ .1811. •R .lOOW • '1'.1n •• R.l.OOW. 'I'.SOJJ •• R.l.OOW. '1'.211J •• R.1001J. 

'1'.1G •• R.l01W. '1'.16 ••• R.l01W. '1'.16 ••• R.l01W. 'I' .l..,. •• R.lOlW. !'.l.811 •• B.l01W • 

'f.l.ft;,.R.l01W. 

-"!.SO.. ,.R.lOlW. -"!.211J. ,.R.lOl.W. 

r.J.a.,.R.l02W. 

'!.15B •• R.l02W. 

'f .lBJr • .a.l.021r. !'.1'711 •• R.102W. !'.13 •• R.1031fo 

"' '1'.10 •• B. lOR. 0 'I' .16• •• a.l031J. 

-"! .2211. ,.R.l031J. !'.l.S •• R.l.Oft. 'f.l.G •• R.10-&W. -"!.211J •• R.10 •• 

41'! .~ • ,.R.l.Oft • 

'1'.1&B._a.1osw. 

-r.1n.,.R.l0fill. 

~.1U •• R.1061J. -r.l.U._a.lOfill. 

~.lft •• B.l.OR. 

-ll!'.ao ••• a.lOfill. !'.l.&W.,.R.lO&W. 

-11!'.1'111 •• R.lOR. -11!'.1811.,.R.106W. 

'1'.1211 •• R.11D. 

~t~ ~ot~ 

'f •• 1:1. ,.R.lll.W • 'l' • .a~J •• B.l11W. 'I' • .a • .a.l.l.21f. 

'1'.40.,.8.11211. 

T • .a .• a.l.l.211. 

'1'.48. ,.R.1131J. '1'.40 •• B.ll31J. 'l'.<i5JI •• R.11SI. 'I' .391' •• B.11-&W. 

Count,- total 

~ 

Table 11.--0riginal reaervea, in all categories, of sub-bituminous coal 1D WJoming (in millions of short tona)--Continued 

.. T"otal in au over'bllrd.n 0 to 1.000 feet overburden 1,000 ~o 2,000 ·feet overburden 2,000 to 3,000 feet overburden oate8oriea 

rn .... ,rn .... In beda In beda 2 l/2 to 5 to 110re tban Inbe4o,Inbedo1 In .... r .... ,.In .... ., In .... I In .... I In .... Total 2 l/2 to 5 to more tha 2 l/2 to 5 to more than 2 l/2 to 5 to -. than 5 feet 10 feet 10 feet· 5 feet 10 feet 10 feet Total 5 feet 10 feet 10 feet Total 5 feet 10 f'eet 10 feet thick th1. ak thick thick thick thick thick thick thick thick thick thick 

Sweetwater CountY--Continued 

50.:59 9.26 .... 59.65 . ... .... .... . ... . ... . ... .... . ... 50.39 9.26 . ... 12.6-i 25.15 .... 3'7.'79 .... . ... . ... . ... . ... . ... . ... . ... 12.64 25.15 . ... 1.98 25.'1'1 . . . . 2'7.'75 . ... . ... . ... . ... . ... . ... .... . ... 1.98 25.'1'1 .... '11.66 9.10 80.76 .... . ... . ... . ... . ... . ... '11.66 9.10 -&3.31 '7.41 4.25 54.9'7 '.20 .... . ... .20 . ... . ... . ... . ... 43.51 '7.41 -&.25 

. . . . . ... .... -&.30 .... . ... 4.30 .04 . ... . ... ·.o4 4.34 . ... . ... 2.30 . . . . 2.30 1'7.23 . ... 1'7.23 46.40 . ... . ... 4'6.40 65.9:5 .... M.05 15.48 .... 69.53 '73.38 4.96 .... '78.34 59.93 . ... . ... 59.93 18'7.36 20.4-i . ... 141.'11 4.58 . . . . 146.29 .05 . ... . ... .05 . ... . ... . ... . ... 141.'16 -&.58 .... 53.20 19.16 . .. . . '12.36 . ... . ... . ... .... . ... . ... .... . ... 53.20 19.16 .... 6.10 .... 6.10 . ... .... . ... . ... .... . ... 6.10 .... 4-&.25 4.33 .... 48.58 6.'78 . ... . .... 6.'18 .... . ... . ... . ... 51.0:5 4..33 .... 5.0]. . . . . 5.01 2.60 . ... .... 2.60 . ... . ... . ... . ... '7.61 .... 34.9-i 8.82 . . . . 43.'76 5.64 . ... . ... 5.64 . ... . ... 40".58 8.82 .... 167.40 . . . . . ... 16'7.40 90.45 .... . ... 90.45 3.83 . ... . ... 3.83 261.68 . ... .... 236.2'1 51.38 .... 28'7.65 90.11 .... .... 90.11 11.25 . ... . ... 11.25 33'7.63 51.38 . ... 1.23 . . . . 1.23 . ... . ... . ... 1.·23 ..... . ... 3.9"1 14..52 . . . . 18.49 33.99 9.44 .... 43.43 .28 . ... . ... ·.28 38~'24 

i~~:: .... 83.'71 121.82 .... 205.53 14.03 -.83 .... 14.86 . ... . ... .... . ... 97 .• '14 .... .26 .... . . . . ·.26. . ... .... . ... .... . ... . ... . ... .26 . ... . ... -

.19 . . . . . ... ,• .• 19 .... . ... .... . ... . ... .... .19 . ... . ... 1.21 .... 1.21 1.16 .... . ... 1.16 . ... .... . ... .... 2.3'7 .... 15.4.1 '1.01 .... 22.42 2.30 .... . ... 2.30 . ... .... .... . . . . 17.'11 '1.01 .... 4.30 . . . . 4.30 . ... .... .... . ... .... 4.30 .... 23.4-i 13.13 . . . . 36.5'7 2.94 14.25 . ... 1'7.19 . . . . .... .... . . . . 26.38 27.38 .... 8.51 . . . . 8.51 1.09 .... . ... 1.09 .'.03 .... .... .03 9.63 .... 120.66 6.80 .... l2'1o46 43.18 . ... .... 43.18 12.13 .... .... i2.13 1'75.9'7 6.80 .... 6'7.96 9.81 .... '1'1.'1'1 8.66 . ... .... 8.66 . ... .... .... . ... '16.62 9.81 .... 112.03 6.50 .... 118.53 41.66 . ... .... 41.56 .... . ... 153.59 6.50 ...... - 'ra.'?S . . . . . . . . '73.'73 15.10 .... . ... 15.10 1.65 .... .... 1.65 90.48 .... 82.66 . . . . . ... 82.65 41.03 . ... . ... 41.03 6.20 .... . ... 6.20 129.88 . ... . ... 1.00 . . . . . . . . 1.00 2'7.61 . ... . ... 2'7.61 48.93 .... .... 48.93 '7'1.54 . ... . ... 11.31 . . . . .... 11.31 45.65 .... . ... 45.65 3'7.'16 .... .... 3'7.76 94.'12 . ... . ... . . . . . ... 30.06 . ... ..... 30.06 38.30 .... .... 38.30 68.36 . ... . ... .32 . . . . . ... .32 . ... . ... . ... .... .... .... . ... . ... '.32 . ... . ... ~'1.69 _l..._:}_!!~M 2~.81 ~5.8-i 605.'74 . ~61!06 .... ],~6.80_ 2'78._27 ;tl6~!S! 3.'76 398.34 ~69J.!'70 ~()88.'71 - _g§O~§'l 

Teton Countt*** 

9.95 11~09 21.94 .... . ... .... .... .... . . . . . ... .... 9.95 11.99 24.25 9.42 33.6'7 .... .... .... .... .... . . . . . . . . .... 24.25 9.42 18.26 4." . . . . 22.'10 .... .... .... . ... .... . . . . .... .... 18.26 4.4-& . ... 3.55 '7.11 .... 10.66 . ... . ... .... . ... .... .... .... . ... 3.55 7.11 . ... 4.80 6.66 . . . . ll.f:6 .... . ... .... . ... . . . . .... 4.80 6.66 . ... 3.11 . . . . 3.;J.1 .... . ... .... . ... .... .... . . .. . . ... 3.11 . ... '7.11 '1.29 . . . . 14.40 .... . ... .... .... .... .... .... . ... '7.11 '1.29 . ... :5.55 . . . . . ... 3.55 .... . ... . ... .... .... .... .. ,.. . .... 3.55 . ... . ... .• 42 . . . . . . . . .42 .... . ... .... .... .... .... •-'•• . ... .42 . ... . ... '15.00 3'7.49 9.42 121.91 .... .... .... . ... .... .... ····I .... , '75.00 3'7.<19 9.42 

!'ownahip total 

59.65 

:5'1.'19 

2'1.'15 

80.'76 

55.1'7 

-&.M 

66.93 

20'1.80 

1.6.M 

'12.36 

&.10 

55.36 

'1.61 

49.-&0 

261.68 

389.01 1.2:5 

62.20 

220.39 .26 

.19 

2.37 

24.'12 

4.30 

53."16 

9.6:5 182.'1'1 

86.-&:s 

160.09 

90.-&a 

189.88 

7'1.M 

94.'12 

68.36 

- ~32 

--P~Q_30.98 

21.9f 

33.6'1 

22."10 

10.66 

11.~ 

3.11 

14.-&0 

3.55 

.42 

121.91 
~ count1 

tl'f.l.n •• R.11'1W. .... 29.31 . ... 29.31 . ... .71 . ... .. 71 . ... .... . ... . ... .... 30.02 . ... 10.02 tl'f.l&JI •• R.l181r. .... 24.87 . ... 24.87 . ... . ... . ... . . . . . ... . ... . ... 24.8"1 . ... 24.8'7 tl'f.l.e• •• a.l181r. .... 85.~ . ... 85.53 . ... 28.43 .... 28.43 . ... .... .... . ... . ... 113.H . ... 1l.S.H tl'f.1n •• a.l181r. 14.44 14.44 25.49 25.49 .... 39.93 39.93 'f.l5 ••••• 120W. 2.29 22.63 13."14 38.66 .21 21.68 11.91 33.80 ·:52 19.85 4.58 24.43 2.50 64.16 30.23 H.89 'f.1e ••• R.Ul01f. 10."13 20.31 50.69 81.73 7.42 24.03 42.69 74.14 30.93 30.24 61.69 18.6"1 75.2"1 123.62 21"1.56 

Coallt7 total 13.02 19"1.09 64.43 2"14.54 7.63 100.34 54.60 162.57 .52 50.78 34.82 86_.12 21.1"1 348.21 1~.(15 523.23 

Waahakie CouDg 

, ..... a.ew. .ea . . . . . .... .62 . ... . ... . ... . ... . ... . ... . ... . ... .62 .... . .... '!.~ •• a.ew. .29 .... .29 . ... . ... . ... . •• ... . ... . ... .6 . ... .29 '!.4411 •• R.tiiOIJ. 6.89 .... 5.89 4.58 . ... . ... 4.58 . ... . . . . . ... . ... 10.4"1 . ... 10.4"1 !.4ft •• R.tiiOIJ. .16 .40 .... .56 . ... . ... . ... . ... . ... . ... .16 .40 . ... .N '!.4411 •• R.9l.W. 11.24 11.68 .... 22.92 .67 . ... . . . . .6"1 . ... . ... . . . . . ... 11.91 11.68 . .... 23.59 

'!.~ •• R.91W. .... . ... . ... .89 . ... . ... .89 4.43 . ... . ... 4.43 5.32 . . . . . ... 5.3& t • .-•• a.9D. .1., .... . ... .1'l . ... . . . . . ... . ... . ... .... . ... . ... .17 . ... . ... .1., 

, ..... _ ....... 3.1.1 ...... . ... 3.14 . ... . ... . ... . . . . . ... 3.14 . ... . ... 3.1 • '!.~ •• .-..-.. :L..n ..... . .... loll .89 .... .89 .89 . ... . ... .89 2.89 . ... 2.89 '!.4611 •• B.-. .... 7 .. 62 3.10 . ... 10.62 1.11 . ... 1.11 8.63 3.10 . ... 11.'13 'f • .&SB • • R. 92lf • :S.M .6.·97 .... 9.51 'f .. ~7 6.64 . ... 14.61 3.10 2.21 . ... 5.31 14.61 14.82 . ... 29.43 

~ t;oll;a1 25.8'7 18_.M ..... -H.21 22.52 9."14' . ... 32.26 9.53 2.21 . ... 11."14 5"1.92 30.29 . ... 88.21 

!!!!2!1 Count1 

....:1 'f.4l.W •• R.6'1W. 2.95 . . . . . . . . 2.95 . . . . . ... . . . . . ... .... . ... . ... . . . . 2.95 . ... . ... 2.95 ..... 'f • ..U •• R.&'IIJ. 5.69 . . . . . . . . 5.69 . ... . ... . ... . ... . ... . ... . ... . ... 5.69 . ... . ... 5.69 

'!.48 •• R.6'1W. 29.06 . . . . . . . . 29.06 . ... . ... .... . ... . ... . ... . . . . . ... 29.06 . ... . ... 29.06 , ...... a.&'IW. 32.20 . . . . 32.20 .... . ... . ... . ... . ... .. ... .... . ... 32.20 . ... 32.80 '!.4511 ••••• .,.. 26.5"7 4.06 .... 30.63 . ... . ... . . . . . ... . ... . ... . ... . ... 26.5"1 4.06 . ... 30.63 

'!.4611 •• R.;6ft. '7.81 2."18 . . . . 10.59 . . . . . ... . ... . ... . ... . ... . ... . ... '7.81 2.'l8 . ... 10.59 

'!.4811 •• a.6ft. 3.:52 ' ... . ... 3.32 .... . ... . ... . ... . ... . ... .... . . . . 3.32 . ... 3.32 

'f.41W ....... 24.90 4.26 . . . . 29.16 .... . ... . ... . . . . . ... . ... . . . . . ... 24.90 4.26 .... 29.16 , ......... ~. 28.22 23.25 . . . . 51.47 . ... . . . . . ... . ... .... . ... . ... . ... 28.22 23.25 . ... 51.4'l 

'!.4&11 ....... :52.60 . . . . . . . . 32.60 .... . ... . ... . ... . ... . ... . ... . . . . 32.60 . ... . ... 32.60 

'!.4411 •• B.a.. 6.33 1.24 . . . . '7.6"7 .... .... . ... . ... . . . . . . . . . ... . ... 6.33 1.24 . ... "1.5., 

'!.4&11 •• R.&SI'. 26.66 .72 . . . . 2"1.28 . . . . . ... . ... . ... . . . . . . . . . ... . . . . 26.56 .'l2 . ... 8'7.28 

, .......... ~. 8.66 . . . . . . . . 8.56 . ... . ... .... . ... . . . . . ... . ... .... 8.56 . ... . ... 8.56 

'f.4'1Jf.,. 8.6811. 3.59 . . . . . ... 3.59 .... . ... .... . ... . . . . . . . . . ... . . . . 3.59 . ... . ... :5.69 

'f.<&S •• R.&SI'. 10.'10 . . . . . ... 10o'70 . . . . . ... .... .... . ... . ... . ~ .. .... 10."10 . ... . ... 10."1'0 

Coallt:7 total 249.06 36.31 . . . . 285.3'7 . . . . . ... .... .... . . . . . ... . ... . ... 249.06 36.:51 .... 285.3'1 

--

-- 'fot:al 

• '!bl• tOWIUiblp aleo contains bituainoua coal. 

~ 1a 'fetor:& CO\mt7 ia at deptha ot 0 to 2,000 teet. 
Table 12.--Estimated original coal reserves in Wyoming, by counties 

(in millions of short tons) · 

Bituminous Sub-bituminous Total in all 

County ranks and 

Measured Indicated Inferred Total Measured Indicated Inferred Total categor~es 

Albany ••• · •••• .... . ... . ... . ... . ... 254.11 39.48 293.59 293.59 

Big Horn ••••• .... . ... . ... . ... . ... 14.04 3.86 17.90 17.90 

Campbell ••••• .... . ... . ... . ... 830.42 14,958.93 46,430.14· . 62,219.49 62,219.49 

Carbon ••••••• .... 80.22 20.02 100.24 52.72 4,102.08 688.48 4,843.28 4,943.52 

Converse ••••• .... . ... . ... . ... 3.43 2,538.25 1,612.29 4,153.97 4,153.97 

Crook •••••••• 1.15 .... . ... 1!15 . ... 8.64 . ... 8.64 9.79 

Premont •••••• .... . ... . ... . ... 21.71 383.68 328.37 733.76 733.76 

Hot Springs •• .... . ... . ... . ... 23_.84 230.99 6.25 261.08 -- 261.08 

Johnson •••••• .... . ... . ... . ... . ... 2,733.30 7,669".84 10,403.14 10,403.14 

Lincoln •••••• 464.67 1,148.34 57.06 1,670.07 229.44 785.02 140.19 1,154.65 2,824.72 

Natrona •••••• . . . . .... . ... . ... . ... 192.83 .05 192.88 192.88 

Niobrara ••••• . . . . .... . ... . . . . . ... 14.31 . ... 14.31 14.31 

Park ••••••••• . . . . . 17.90 . ... 17.90 . ... 146.90 49.69 196.59 214.49 

Sheridan ••••• . . . . . . . . . ... . .... 397.81 3,463.72 13,909.18 17,770.71 17,770.71 

Sublette ••••• . . . . . ... 1.60 1.60 . ... . ... 5.21 5.21 6.81 

Sweetwater ••• 1,531.28 3,759.13 4,587.63 9,878.04 .... 3,246.~9 1,784.59 5,030.98 14,909.02 

'l'eton •••••••• . . . . . . . . .26 .26 . ... . ... 121.91 121.91 122.17 

Uinta •••••••• 53.52 1,472.13 . . . . 1,525.75 .... 329.82 193.41 523.23 2,048.98 

Washakie ••••• . . . . . ... . ... . . . . . ... 37.20 51.01 88.21 88.21 

Weston ••••••• · 11.88 13._43 14.63 39.94 .... 270.87 14.50 285.37 325.31 

Total •••••••• 2,062.60 6,491.15 4,·681.20 13,234.95 1,559.37 33,711.08 73,048.45 108,318.90 121,553.85 
,. 

Table 13.--Eetimated oric;inal coal reaervu in Wyol'!ling, by re~;ione and tielde 

tin m1111one ot ehort tone) 

Field 

Ca."ftbria ••• , ••••• ,,. 11.88 10.01 lit .63 36.52 Skull Creek.,,.,,, • ·:;6 3.1.2 3·1.2 

Sundance •••••••••• • .;6 Al*ddin. ,, , ••••• ,, , .;9 .;9 

Total •••••••••••• 13.03 13.43 llt.63 lt]..09 

Powder !!!:!.!:. !!!!J1 

Sheridan •..••• , •••• .... .... .... . ... 397.81 2,333·05 13,567.49 16,298.35 Powder rl.iver ••••••• .... . ... . ... 830.42 7,539.14 17,196.61 25,566.17 Spotted Horse •• , ••• . ... .... .... .... . ... . 2,.)25.23 3,54l.i8 5,866.71 I,ittle Powder River .... .... .... .... .... 2,789.24 630. 6 3,419.90 Gillette ••••••••••• . ... .... .... .... . ... 4,526.41 10,238.35 14,764.76 

Pur.~pkin Buttes ..... . ... .... .... . ... . ... 1,125.06 11,546.13 12,671.19 Dry Cheyenne.,, ••• , .... .... .... . ... .... 132.85 18.22 151.07 Lost Spring •• ,,.,,, .... .... . ... .... 3:43 

577.75 307.74 885.49 Glenrock., •• , •••• ,, .... .... . ... . ... 272.99 123.32 399.74 

Sussex •.••..••••••• .... .... .... . ... . ... 585.02 233.44 818.46 

Buffalo •••••.•••••• . ... .... .... .... . ... 1,401.80 1,380.76 2,782.56 Ba:t'ber., ••••••••••• .... .... .... . ... . ... 405.17 1,134.72 1,539.89 

Central pa::; .. ~~ • • • • .... .... .... . ... .... . ... 9!717.08 9,717.08 

Total •••••••••••• .... .... .... . ... 1,231.66 24,011.71 f:$,6)6.00 94,881.37 

Bighorn .!!UY! 

Silvertip •••••••••• 17.90 17.90 

27:i9 

4.65 4.65 Garland •••••••••••• .... 10.56 37.75 Basin •••••••••••••• 14.04 3.24 17.28 

Southeastern ••••••• 

23:84 

)7.20 51.24 88.44 

Gebo •••••••• ••••••• 129.43 1.09 154.)6 

Grass Creek •••••••• 99.82 4.93 104.75 Meeteetse •••••.•••• 97.61 

35:io 

97.61 

Oregon Basin ••• , ••• 23.84 58.94 

Total •••••••••••• 17.90 17.90 23.84 429.1) 110.81 563.78 

Wind .!ll!.!£ ~ 

Muddy Creek •••••••• 42.50 42.50 

Pilot Butte •••••• ,. .36 .36 

Hudson ••••••••••••• 21.71 J7.26 3:77 58.97 

Alkali Butte ••••••• 85.73 89.50 

Ts. 33-34 N., R.96W. 208.11 299.36 

Powder Uiver ••••••• 176.86 ~~~:3~ 

Total ............ 21.71 550.82 303.13 875.66 

~field 

Total •••••••••••• 

~~field 

Total ••••••••••• ·I ····I .... , .... , .... I .... I 257.91, . 47.271 305.181 

iil:iS River I!.lWm 

Kindt Basin •••••••• .... .... -3.42 3.42 .... Great 732:60 547:26 1,279:88 llivide Basin. . ... u:44 9:94 2):38 . ... Little ::make ltiver. 

1,53i:2i .... 1,161.50 754.05 1,915.55 rtock ::iprinr;s ••••••• ),759.13 4,587.63 9,878.04 .... 2,0)7.73 610.91 2,848.64 western part or •••• .... .... . . . . . ... . .... . ... 6.97 6.97. re.e:ion •••• Total ............ 1,531.28 3,772.57 4.600.99 9,904.84 .... ),931.83 2,1,19.21 6,051.04 

Kemmerer ••• ••••• ••• 501.66 2,530.75 47:iJ 3,019.92 229.44 815.59 317.38 1,362.41 Grays 1\iver., •••••• 16:6i 89:72 . ·.68 .... . ... .... . ... McDougal •• , •••••••• 10.75 117 .OS .... l:ivaneton •••••••• ••. .... .... .... . .... . ... 299:2; 15:2c, n4:4; 

Total •••••••••••• 518.29 2,620.47 56.92 3,197.6S 229o44 1,114.'84 332.58 1,676.86 

Total •••••••••• ··I ..... , 121.491 

Grand total ••••• 

36.;2 

)o42 

.;6 

.59 

41.09 

16,298.35 

25,566.17 

5,866.71 

3,419.90 

14,764.76 

12,671.19 

151.07 

885.49 

399.74 

81a.46 

2,782.56 

1,539.89 

9,717.08 

94,M1.37 

22.55 

37.75 

17.28 

M.44 

154.36 

104.75 

97.61 

58.94 

581.68 

42.50 

,J6 

58.97 

89•50 

i~l·:~l 

875.66 

3,916.96 

305.18 

3.~2 1,279. g 

1,938.~ 12,726. 

6.97 

15,955.88 

4,442:li 

117.08 

314o45 

4,1!74.54 

121.49 
'l'abl~ 14._--Selected list or coal mines_' in Wyoming 

Location 

Name of mine Owner or operator County sec~ T. R. BUI8 of' mine Lo_cation Owner or operator County sec. T. R. 

Sheridan~ ill!!! ~ ·1!!!!!: ~ 

lkmarch Sheridan-Wyoming Coal Co~ Sheridan 20 57N. 84W. Pioneer Pioneer Coal Co. Carbon 8 12N 8911'. 

Armstrong Custar Coal Co. Sheridan 88 57N. 84W. 

Big Horn Big Horn Coal_ Co. Sheridan 36 58N. 85W. 

Stora King Storm King Coal Co. Sheridan 

Jlinea 

2 55N. 85W_. ~ sl!rinss !:.!.!!!! 

"D" mine · Union Pacific Coal Co. I Sweetwater 19 2lll. 102W. 

Premier Rock Springs Ruel Co. Sweetwater 20 121N. ~02W. 

Kleen Pyre Rock Springs Fuel Co. Sweetwater 27 21N. 10211. 

D. o. Clark Union Pacific Coal Co. Sweetwater 24 2lll. ~0311. 

Winton 7 1/2 Union Pacific Coal Co. Sweetwater 34 21N. P,0411. 

Winton 1 Union Pacific Coal Co. Sweetwater 5 20N. ~04W. 

No. 9 mine Colony Coal Co. Sweetwater 17 20N. P.04W. 

Stansbury Union Pacific Coal Co. Sweetwater 19 20N. P.04W. 

~!!!!!!!:~ 

Wild Horse Frank Korp Sheridan 24 54N. 77W. 

Wyodak Wyodak Coal & Jlt g. Co. Campbell 28 SON. 71W. 

Gillette field 

Reliance 1 Union Pacific Coal Co. Sweetwater 31 20N. 104W. 

and T 

Rock Springs Union Pacific Coal Co. Sweetwater 19 19N. 10411. .Antelope ,J Best Coal Co. Converse 35 41N. 71W. East Antelo Ba&e1 Wiema,rk Converse 35 41N. 71W. 

No. 8 . 

Swanson Swanson Mining eo._. Sweetwater 20 ~9N. 104W. 

Peacock Colony Coal Co. Sweetwater 11 P,.8N. fl.0511. 

Sweetwater Gunn-Quealy Coal Co. Sweetwater 15 P.8N. tLo5W. 

.But'falo tleld 

No. 2 

Rainbow Gunn-Quealy Coal Co. Sweetwater M 18N. tLo5w.-a 

Clear Creek Clear Creek Coal Co. Johnson 29 51N. 81W. 

Q!.!?.2 ~ KeD~~Derer ~ 

Junction A. C. Bell Uinta 8 15N. 118W. 

Kendall Jake Zuroski and Uinta 18 16N. 117W. 

Hi-Line Ben F. Goe Hot Springs 30 44N. 96W. 

Valla,- Haverlock and MacCallum Hot Springs 21 44N. 95W. 

Osborne Emanuel Vlastos Hot Springs 16 44N. 95W. 

John Urbania 

Brilliant Kemmerer Coal Co. Lincoln 18 19N. ll6W. 

No. 8 

Service Dan Shi cki ch Lincoln 4 P.9N. ~isw. 

Elkol Kemmerer Coal Co. Lincoln 11 120N. ill7W. 

Twin Creeks Mike Mecca Lincoln 7 ~lll. ~l&W: 

Ron ceo Roncco Coal Co. Hot Springs 17 44N. 95W. 

lliller Sheridan-Wyoming Coal Co. Hot Springs 7 44N. 95W. 

Bllrnell mines Burnell Coal Co. Hot Springs 8-9 44N. 95W. 

~.!.!!M 

McDousal !!!,!S! 

Williuas Victor Frappert Fremont 10 33N. 98W. 

George Ben George Fremont 3 33N. 98W. 

Cottonwood H. B. Kleinstick Sublette 4 33lf_~~5W. ~ Blind Bull Blind Bull Coal Co. Lin coin 1 4N 1611. lli!!! -·- -

*Location approximate~ 

Iugget llugge t Coal Co. Carbon 10 22N. 81W. 

Hanna 4A Union Pacific Coal Co. Carbon 9 22N. 81W. 

Hanna 2 Monolith Portland Carbon 8 22N. 81W. 

llidwest Co. 

Garey Elk Mountain Coal Co. Carbon 32 21N. sow. L- --~~-
SELECTED BIBLIOGRAPHY 

The following bibliography lists only publications that contain detailed information about Wyoming coal resources. 

Most of these publications contain maps showing outcrops of the coal beds, structure of the coal-bearing rocks, detailed measured sections of the coal beds, and related information. The publications are listed in numerical order 

according to the following classification: (1) U. S. Geological Survey reports {bulletins, geologic folios, professional 

papers, annual reports, preliminary maps and charts, and water-supply papers) and (2) miscellaneous publications. 

The publications of the U. S. Geological Survey marked by an asterisk (*) are out of print. The bulletins not so 

marked were obtainable on Janu.ar:y 1, 1950, from the Superintendent of Documents, Washington 25, D. C., at the 

prices indicated. The preliminary maps and charts are obtainable from the Distribution Section, U. S. Geological 

Survey, Denver Federal Center, Denver, Colorado. The maps and charts are also available for over-the-counter 

sale (not by mail} from the U. S. Geological Survey, Room 1210, General Services Administration Building, Washington, D. C. All the publications listed are available for consultation in most large public and university libraries 

and frequently are obtainable from dealers in second-hand scientific books. In Wyominq, many of the. publications 

should be available at the University of Wyoming Library, Laramie; the Wyoming State Library, Cheyenne; and the 

Natrona County Public Library, Casper. An index to the publications in the bibliography is given on succeeding pages. 

*119. 

*225. 

*260. 

*285f. 

*316d. 

*341b. 

*341c. 

*364. 

*381b. 

*471f. 

*471g. 

*47~j. 

*499. 

*531i. 

*53 1m. 

*541k. 

*543. 

*680. 

*'796a. 

*804. 

U. S. Geological Survey publications 

Bulletins 

A geologic reconnaissance in northwest Wyoming, by G. H. Eldridge, 72 pp. , 4 pls. , 1894. 

Coal of the Bighorn Basin in northwest Wyoming, by C. A. Fish& pp. 345-364, 1903. 

The coal of the Black Hills, Wyo., by N. H. Darton, pp. 429-4., 1005. 

Mineral resources of the Bighorn Mountain region, (Wyo. J, by N. H. Darton, pp. 303-310; Mineral 

resources of the Bighorn Basin, [Wyo.], by C. A. Fisher, pp. 311-315; Coal andoil in southern Uinta 

County, Wyo., by A. C. Veatch, pp. 331-353, pls. x-xii, 1006. · 

Coal fields in a portion of central Uinta County, Wyo., by A. R. Schultz, pp. 212-241, pl. xiii; The Lander 

coal field, Wyo., by E. G. Woodruff, pp. 242-243; Coal fields of east-central Carbon County, Wyo., by 

A. C. Veatch, pp. 244-260, pl. xiv; Coal of Laramie Basin, Wyo., by C. E. Siebenthal, pp. 261-263, 1907. 

The Sheridan coal field, Wyo., by J. A. Taff, pp. 123-150, pl. viii; The Glenrock coal field, Wyo .. ,· by E. W. 

Shaw, pp. 151-164, pl. ix; Coal fields of the northeast side of Bighorn Basin, Wyo., and of Bridger, Mont., 

by C. W. Washburne, pp. 165-199, pl. x; Coal fields of the southwest side of the Bighorn Basin, Wyo., by 

E. G. Woodruff, pp. 200-219, pl. xi; The eastern part of the Great Divide Basin coal field, Wyo., by E. E. 

Smith, pp. 220-242, pl. xii; The western part of the Little Snake River coal field, Wyo., by M. W. Ball, 

pp. · 243-255, pl. xiii; The northern part of the Rock Springs coal field, Sweetwater County, Wyo.; by A. R. 

Schultz, pp. 256-282, pls. xiv-xv, 1009. 

Coal fields of northwestern Colorado and northeastern Utah, by H. S. Gale, pp. 283-315, pls. xvi-xx, 1009. 

Geology and mineral resources of the Laramie Basin, Wyo. (a preliminary report), by N. H. Darton and 

C. E. Siebenthal, 81 pp., 8 pls., 1009. 

The Powder River coal field, Wyo. , adjacent to the Burlington Railroad, by R. W. Stone and C. T. Lupton, 

pp. 115-136, pl. viii; The Buffalo coal field, Wyo., by H. S. Gale and C. H. Wegemann, pp. 137-169, pls. 

ix-xi; The coal field ill the southeastern part of the Bighorn Basin, Wyo., by E. G. Woodruff, pp. 170-

185, pl. xii; The eastern part of the Little Snake River coal field, Wyo., by M. W. Ball and Eugene 

Stebinger, pp. 186-213, pl. xiii; The southern part of the Rock Springs coal field, Sweetwater County, 

Wyo., by A. R. Schultz, pp. 214-2~1, pls. xiv-xv; Weathering of coal in the arid region of the Green 

River Basin, Sweetwater County, Wyo., by A. R. Schultz, pp. 282-296, 1910. 

The Little Powder River coal field, Campbell County, Wyo., by J. A. Davis, pp. 423-440, pls. xxxi-xxxiv; 

The Sussex coal field, Johnson, Natrona, and Converse Counties, Wyo., by C. H. Wegemann, pp. 441-471, 

pls. xxxv-xliii; The Lost Spring coal field, Converse County, Wyo., by D. E. Winchester, pp. 471-515, 

pls. xliv-xlviii, 1912. 

Coal fields of the Wind River region, Fremont and Natrona Counties, Wyo., by E. G. Woodruff and D. E. 

Winchester, pp. 516-564, pls. xlix-lvii, 1912. 

Miscellaneous analyses of coal samples from various fields of the United States, pp. 629-655, 1912. 

Coal near the Black Hills, Wyo.-S. Dak., by R. W. Stone, 66 pp., 7 pls., 1912. 

The Barber coal field, Johnson County, Wyo., by C. H. Wegemann, pp. 263-284, pls. xvii-xix, 1913. 

Miscellaneous analyses of coal samples from various fields of the United States, pp. 331-356, .1913. 

Analyses of coal samples from various fields of the United States, by M. R. Campbell, pp. 4Ql-526, 1914. 

Geology and geography of a portion of Lincoln County, Wyo. , by A. R. Schultz, 141 pp., 11 pls., 1914. 

A geologic reconnaissance for phosphate and coal in southeastern Idaho and western Wyoming, byA. R. 

Schultz, 84 pp. , 2 pls. , 1918. 

The Gillette coal field, northeastern Wyoming, by C. E. Dobbin and V. H. Barnett, pp. 1-50, pls. 1-10; 

The Minturn district and the northwestern part of the Gillette field, by W. T. Thorn, Jr., pp. 50-64, pls. 

11-13, 1928. 

Geology and coal and oil resources of the Hanna a.Rd Carbon Basins, Carbon County, Wyo., by C. E. Dobbin, 

C. F. Bowen, and H. W. Hoots, vi, 88 pp., 27 pls., 1929. 

75 
SELECTED BIBLIOGRAPHY--Continued. 

U. S. Geological Survey. publications--Continued. 

Bulletins--Continued. 

806a. The Pumpkin Buttes coal field, Wyo., by C. H. Wegemann, R. W. Howell, and C. E. Dobbin, pp. 1-14, 

. pls. 1-5, 1929. 10¢. 

*806d. Geology of the Rock Creek oil field and adjacent areas, Carbon an~ Albany Counties, Wyo., by C. E. Dobbin, 

H. W. Hoots, C. H. Dane, and E. T. Hancock, pp. 131-153, pls. 36-43, 1929. 

921b. Geology and oil and coal resources of the region south of Cody, Park County, Wyo., by W. G. Pierce and 

.D. A. Andrews, pp. i-v, 99-180, pls. 11-24, 1941. $1. 

*107. 

*127. 

*128. 

*141. 

*142. 

*150. 

*173. 

Geologic folios 

Newcastle, Wyo.-S. Dak., by N. H. Darton, 9, [ 1] pp., 1 sheet of ill us., 5· maps, 1904. 

Sundance, ·wyo.-S. Dak., by N. H. Darton, 12, [ 1] pp. , 1 sheet of ill us. , 5 maps, 1905. 

Aladdin, Wyo.-S. Dak.-Mont., by N. H. Darton and C. C. O'Harra, 8, [1] pp., 4 maps, 1905. 

Bald Mountain-Dayton, Wyo., by N. H. Darton and R. D. Salisbury, 15, [ 1) pp., 2 sheets of illus., 7 maps, 

1906. 

Cloud Peak-Fort McKinney, Wyo., by N. H. Darton and R. D. Salisbury, 16, [ 1] pp., 2 sheets of illus., 

7 maps, 1906. 

Devils Tower, Wyo., by N. H. Darton and C. C. O'Harra, 10 pp., 4 maps, 1907. 

Laramie-Sherman, Wyo., by N. H. Darton, Eliot Blackwelder, and C. E. Siebenthal, 18 pp., 1 sheet of 

iUus. , 7 maps, 1910. · 

0 Professional papers 

*51. Geology of the Bighorn Mountains, by N. H. Darton, 129 pp., 47 pls., 1906. 

*53. Geology and water resources of the Bighorn Basin, Wyo., by C. A. Fisher, 72 pp., 16 pls., 1906. 

*56. Geography and geology of a portion of southwestern Wyoming, with special reference to coal and oil, by 

A. C. Veatch, 178 pp., 26 pls., 1907. 

*65. Geology and water resources of the northern portion of the Black Hills and adjoining regions in South Dakota 

and Wyoming, by N. H. Darton, 105 pp. , 24 pls. , 1909. 

*145. Geology and oil and coal resources of the Oregon Basin, Meeteetse, and Grass Creek Basin quadrangles, 

Wyo., by D. F. Hewett, iv, 107 pp., 32 pls., 1926. 

Annual reports 

*A 22 III. (a) The coal fields of the United States, by C. W. Hayes: 22d Ann. Rept., pt. 3, pp. 7-24, pl. i, 1901. 

*A 22 III. (j) The Rocky Mountain coal fields, by L. S. Storrs: 22d Ann. Rept., pt. 3, pp. 415-471, pls. xxix-xxx, 

1901. 

Preliminary maps and charts 

M 1. Willow Creek coal area,· Lincoln County, Wyo., by D. A. Andrews: Coal Inv. Preliminary Map (scale, 1 

inch = 4,000 feet), 1944. 50¢. 

C 27. The Tertiary stratigraphy of the Jackson Hole area, northwestern Wyoming, by J. D. Love: Oil and Gas 

Inv. Preliminary Chart 27, 1947. 60¢. 

Water-supply papers 

*W 70. Geology and water resources of the Patrick and Goshen Hole quadrangles, in eastern Wyoming and western 

Nebraska, by G. I. Adams: Water-Supply Paper 70, 50 pp., 11 pls., 1902. 

Miscellaneous publications 

T 484. Analyses of Wyoming coals: U.S. Bureau of Mines Tech. Paper 484, 154 pp., 1931. 

U 40. Stratigraphic sections of Jurassic and Cretaceous rocks in the Jackson Hole area, northwestern Wyoming, 

by J. D. Love, D. C. Duncan, H. R. Bergquist, and R. K. Hose: Wyoming Geol. Survey Bull. 40, 48pp., 

1949. 

76 
INDEX TO BIBLIOGRAPHY 

This index refers to the preceding bibliography. Tpe abbreviations used for publications of the U. S. Geological 

Survey are as follows: A, Annual Report; B, Bulletin; C, Oil and Gas Investigations Preliminary Chart; GF, Geologic Folio; M, Preliminary Map; P, Professional Paper; W, Water-Supply Paper. Other abbreviations used are: 

T, Technical Paper, U.S. Bureau of Mines; and U, Bulletin, Wyoming Geological Survey. 

Aladdin field (Crook County) ••••.•.••••••••••••••••.•••••••••••••••.•.•••.•••.•••••. P 65; B 260, 499; GF 128 

Aladdin quadrangle (Crook County) ....•.•.••.•••••••••••.••••••••••.•.•.•••.••..•••••••.•••.••••.••• GF 128 

Albany County ••.•• : ••.••.••••.••••.•••••••.••••.••.•..•••• o • o ••••••••••• o ••• o • B 316 d, 364, 806 d; GF 173 

Alkali Butte field (Fremont County) ••••••••••.•••••••••••• o •••••••••••••••• o •••••••• 0. 0. 0 •••••• B 119, 471 g 

Analyses .•.•...• ~ •.•••. '"' •.•.•.•.••.•...••.••••.••.•••.••.•••.••••••••.•••••• B 471 j, 531 m, 541 ~; T 484 

Barber field (Johnson" County) •.•••••••••••••••••••.••• '"' ••••••••••••••••..•••• o •• 0 • 0 •••••••••••• "' •• B 531 i 

Basin field (Big Horn County) •••••.•.•.••••••.•••.•••••••••.••••••.••••••••••.••.•••• P 53; B 119, 225, 341 b 

Bighorn Basin (Big Horn, Hot Springs, 

Park, and Washakie Counties) •.•.•.•.•••••.•••.•••.•.•••.•• P 53, 145; B 119, 225, 285 f, 341 b, 381 b, 921 b 

Big Horn County •••.••.••••••••••••.•••••.• o ••••••••••••••••••••••••••• P 53; B 119, 225, 285 f, 341 b, 381 b 

Big Horn Mountains (Johnson and Sheridan Counties) ......................... o .............. P 51; B 119, 285 f 

Black Hills Region (Crook and Weston Counties) •••••••••••••••••••••••• P 65; B 260, 499; GF 107, 127, 128, 150 

Buffalo field (Johnson and Sheridan Counties) •••••••••.•••••.•••••••.••••••••• P 51; B 119, 285 f, 3&1 b; GF 142 

Cambria field (Weston County) •••••.•••••••.•••.•.••••••.••••••••••••.••.•.•••••.••.•.••• B 260, 499; GF 107 

Campbell County ••••••••.•...•••..•.•.•••••••.•••.•.•••••.•.•••.•.•••••••.•••••• B 381 b, 471 f, 796 a, 806 a 

Carbon Basin (Carbon County) •••••••••••••••••••••.••••.••••••••••••.•••••••••••••.•.••••••••• B 316 d, 804 

Carbon County •••••••••••••.••••• 0 •••••••••••••••••••••••••• ~ •••••••• B 316 d, 341 b, 364, 381 b, 804, 806 d 

Converse County ••••..••••••••••••••••.••••••••••••••••••••••••••••••••••.••••• B 341 b, 471 f, 796 a, 806 a 

Crook County ..................................................... P 65; B 260, 499, 796 a; GF 127, 128, 150 

Dayton quadrangle (Sheridan County) ••.••••••••••••••••••••••.••••••••••••••••••.••••••••••••••••••• GF 141 

Devils Tower quadrangle "(Crook County) •••••••••••••••••••••••••••••••••.•••••••••••.••••••••••••••• GF 150 

Dry Cheyenne field (Converse County) •••••••••••••••.•••. ! ••••••••••••••••••• o •••••••••••••••••••••• B 806 a 

Evanston field (Uinta County) ••.•••.•••••••••••••••••••••••••••.••••• o • • • • • • • • • • • • • • • • • • • • • • • • P 56;. B 285 f 

Fall River Basin (Teton and Sublette Counties). • • • • • • • • • • • . • • • • . • • • • • • • • • • • . • . • • . • . • • . .. • • • • • • • • • • . . • B 316 d 

Fort McKinney quadrangle (Johnson County) •.••••••••.•••.••••••••..•••.••••••••.•••.•••••••...•••..•• GF 142 

Fremont County ..•...•.•..••••••.••.•.••••.••••.••••••.•••..••••••••••.•••••.••• B 119, 316 d, 341 b, 471 g 

Garland field (Big Horn and Park Counties) .................................................. P 53; B 225, 341 b 

Gebo field (Hot Springs County) ••.•••••••.•••••.••.••••••.••••••.••••••.•••••••••.••• P 53; B 119, 225, 341 b 

Gillette field {Campbell, Converse, Crook, Niobrara, and Weston Counties) .•••••••.•.••••••••••• B 381 b, 796 a 

Glenrock field (Natrona and Converse Counties) ••••••••••••••••••••••••••••••••••••••.•••••••••.••••• B 341 b 

Goshen County. 0 •••••••••••••••••••••••••••••••••••••••••••••••••••••••••••• o • • • • • • • • • • •••••••••••••• W 70 

Goshen Hole field (Goshen County) .•.•.•.•.••••••••.••.••.• 0 • 0 o ••• o o •• o • o o o • • • • • • • • • • • • • • • • • • • • • • • • • • • W 70 

Grass Creek field (Hot Springs ·county) 0 • 0 • 0 •••••••••••••••••••••••• 0 ••••••••• o •••••••• o •• P 145; B 119, 341 b 

Great Divide Basin field (Carbon, Fremont, and Sweetwater Counties) •.••. o ••••••••• o •••••••••••••••••• B 341 b 

Green River region •.•.•..•..•.••••••••••••.•••.•••.•.•••••.••••...••••.••. B 316 d, 341 b, 341 c, 381 b, 543 

Greys River field (Lincoln County) ..•.• o ••••••••• 0 •• 0 •••••••• 0 •••••• o •• o o. o ••• o •• o •••••••• B 316 d, 543, 680 

Hams Fork reqion ......................................... 0 ••••• 0 .. • .. .. • P 56; B 285 f, 316 d, 543, 680; M 1 

Hanna field (Carbon County) •.•.. o •••••••• o •••••••••••••••••••••• 0 ••••••• o o •• o o o • o • o o o • o • o ••• o B 316 d, 804 

Hot Springs County ... o •••• o • o ••• o ... o • o • o o o o • o • o ... 0 ••• o • o o ...... o P 53, 145; B 119, 225, 285 f, 341 b, 381 b 

Hudson field (Fremont County) .• o o • o • o • o o ••••• 0 o •• 0 • 0. 0 ••••• o. o o •• o o • o o o o ••••••• o • o • o ••• B 119, 316 d, 471 g 

Jackson Hole f:leld (Teton County) •••.•.•.••• 0 ••••••••••••••••••••• 0 ••••••••••••••••••••••••••••• C 27, U 40 

Johnson County •.•••...•...•.•....•••.••••.••• 0 ••••••••• P 51; B 119, 285 f, 381 b, 471 f, 531 i, 806 a; GF 142 

Kemmerer field (Lincoln and Uinta Counties) • • • • • • • . • . • • • • • • . • • • . • . • • • • • • • • . • • . P 56; B 285 f, 316 d, 543; M 1 

Kindt Basin field (Carbon County) •.•••.••••.••••••••••••••••.••••.•••••• "' •••••••.••••••••••••••••• 0 .B 316 d 

Labarge Ridge field (Lincoln and Sublette Counties) .............................................. B 316 d, 543 

Laramie Basin {Albany and Carbon Counties) • • • . • • • • • • • .. . • • • • • • • • .. • • . • • • • • . • .. . • .. • .. • . B 316 d, 364, 806 d 

Laramie quadrangle (Albany County) • . • • • • • • • • • • • • • • • • . . • • • . • . • • • • • • . • • • • . • . • . • • • • • • • • • . • • . . • . • • • • • GF 173 

Lincoln County •.•••.•.•.••••.••••.•••••.•••••••••••••••••••••••••••••.•• P 56; B 285 f, 316 d, 543, 680; M 1 

Little Powder River field (Campbell County) •••.•.•••••••••••••••••.••••..•••.•.••.•••••• 0 •••••••••••• B 471 f 

Little Snake River field (Carbon and Sweetwater Counties) •.••••••••.••..•.•••. 0 0 0 0. 0 0 0 0 0 •• 0. 0. 0 B 341 b, 381 b 

Lost Spring field (Converse and Niobrara Counties) o o •••• o • o •••••••• o • o o • o ••••• o ••• o o o o 0 •••••••••••••• B 471 f 

77 
INDEX T9 BIBLIOGRAPHY --Continued. 

McDougal field (Lincoln, Sublette, and Teton Counties) • . .. • • . • . • . . • • • • • . • • • • • • . . . . . . . . • • • • • • B 316 d, 543, 680 

Meeteetse field (Hot Springs and Park Counties) •......•.•.•..•..••••••••••• P 53, 145; B 119, 225, 285 b, 341 b 

Minturn district (Campbell County) ...•.....•.•••.•....•••...•...•.•.•.. o .••.••.....•.....• o ••• B 381 b, 796 a 

Muddy Creek field (Fremont ColUlty) •...•.•...•.•••••..•...• o •••••.•• o •••.. o o . o .. o . o .• : •. o .• o •. B 119, 471 g 

Natrona County. o .• o o 0 • o 0 0 •• o ... o o ..• o o . o . o 0 0 0 0 • 0 0 • 0 ••• 0 o 0 •• o o o •.. o o o •• o o .•.• o . o o o . o . B 341 b, 471 f, 471 g 

Newcastle quadrangle (Weston County). o. o. o. o o o o. o. o o. o o o .• o o •.• o ..• o o. o o o. o. o o o o •• o• ••••••• o ••••••• GF 107 

Niobrara County •• 0 ••••••••••••••••••• 0 •••••••••••••••••••••••••••••••••••••••••••••••••••• B 471 f, 796 a 

Oregon Basin field (Park County) ....•.•....•. 0 ••••••••••••••••••••••••••••••••••• o •••••.•••• oP 145; B 341 b 

Park County ....................... 0 ••••• 0 •••••••••••••• ~ ••••••••• P 53, 145; B 119, 225, 285 f, 341 b, 921 b 

Pilot Butte field (Fremont County) .•.••.••.•.••.••.•.•••.•••••• o •.••••••.••• o ••••••••.••••••••• B 119, 471 g 

Powder River field. (Campbell, Johnson, and Sheridan Counties) ••••.•.••••••.•.••••••.••••••••••.••••• B 381 b 

Powder River field (Fremont and Natrona Counties) .............................................. B 119, 471 g 

Pumpkin Buttes field (Campbell, Converse, and Johnson Counties) •••.•.••••••.••••••••••••.••••••••••• B 806 a 

Rock Creek field {Albany and Carbon Counties) ................................... B 316 d, 364, 806 d; GF 173 

Rock Springs field (Sweetwater County) •••..••.•.•.•.•••••••••••••••••••••..•••••.••••••••••.• B 34t b, 381 b 

Sheridan County .•••.•.•••.•..••.•••••••••••.•.•.•.•.••.•••••••••..• P 51; B 119, 285 f, 341 b, 381 b; GF 141 

Sheridan field (Sheridan County) ••...•••.•••••.•.••••••.•.••.••.••..••••••.•••••••.• P 51; B 119, 285 f, 341 b 

Silvertip field (Park County) ....................................................... P 53; B 225, 285 f, 341 b 

Skull Creek field (Weston County) • .. .. .. . . .. .. • .. • • .. • .. • .. .. .. • • • .. . • .. .. • .. .. .. .. P 65; B 260, 499; GF 127 

Southeastern field (Hot Springs and Washakie Counties) ••••••.•••••••••..• o o ••.• o o. o ••• P 53; B 225, 285 b, 381 b 

Sublette County ••••••••• o ••• o ••• o ••• o • o •. o ••• o o •• o ••. o o o • o •. o o .•. o o • o • o • o o • o • o • o ••. o o ••••••• o B 316 d, 543 

Sundance field (Crook County) 0 0 ••••••• 0 •• 0 • 0 ••••••••••••••••••••••••••••••••••••••• P 65; B 260, 499; GF 127 

Sundance quadrangle (Crook and Weston Counties) •••••••.•••••••••.•••••••••••••.•••••••••••••••••••• GF 127 

Sussex field {Converse, Johnson, and Natrona Counties) ••.••••••••••••.•••••.•••.•••••••••••••• B 381 b, 471 f 

Sweetwater County .............................. 0 •••• 0 .............................. o • • B 341 b, 341 c, 381 b 

Teton County ••••••••.•••••• 0. 0. 0 ••••• 0 0. 0 ••••••••••• 0 •••••• o ••••.••..•••....• B 316 d, 543, 680; C 27; ·u 40 

Uinta County ••••••••••.•.•••••.•••••••••••••.•••.•.••.••.•••••• · •.•••••.•.•.••••••••••••••••• P 56; B 285 f 

Washakie County ••••••••••••.•••..•••••..••••.•••.•.••••••••••••..••••••..• P 53; B 225, 285 f, 341 b, 381 b 

Weston County~ ••••••.••••••••.•.•.•.•..•••••••••.•.••••••••••.•.••••• P 65; B 260, 499, 796 a; GF 107, 127 

Willow Creek coal area (Lincoln County) •...•.••••••.•••••••••••••••••••••.••••••.•••• ;. ••••••••••• P 56; M 1 

Wind River Basin (Fremont and Natrona Counties) •.•••••.• 0 o •.••.••.•••••• o • o o ••••••••••• B 119, 316 d, 471 g 

Wyoming (general) •••••••.•••••••••••••. o •• o •••••••.•••• o •.•••.•.••••••••.••.••••••••••• A 22 ill a, j; T 484 

Interior--Duplicating Section, Washington, D. C. •a•u 

?8