142 GEOLOGICAL SURVEY OF THE TERRITORIES. 



Fort Union or Great Ligrate group — Continued. 



Locality. 



Description of strata. 



Coal-beds under 

 White River beds, 

 near Fort Laramio 

 and east of Kock 

 Urect. 



Laramie plains, one 

 hundred miles west 

 of Fort Laramie. 



Coal-beds of Carbon 

 and Separation, 

 "Wyoming Terri- 

 tory. 



At Separation and 

 surrounding conn- 

 try. Probably same 

 at Carbon, Rock 

 Creek, Cooper 

 Creek, and Creston. 



Carbon Station 



LiGcnite beds east of 

 Washakie Station. 



West of Washakie, 



and in Bridgor 



Pass. 

 Coal-beds east of Salt 



Wells. 

 Coal-beds o f Rock 



Springs, and east of 



Rock Springs and 



Salt Wells. 

 Henry's Fork of 



Green River. 



On St. Vrain's Creek, 

 east of mountains 

 in (Colorado. 



Marshall Mine, Colo- 

 rado. 



Ralston Creek, near 

 Golden City, and 

 Golden City. 



Golden City 



Yellow, rusty yel- 

 lon-, rusty brown, 

 and drab beds. 



Age. 



Authoi ity. 



An immense thickness 

 of sandstones and 

 clays, extending 

 from Green River 

 beds to Cretaceous 

 clays. 



Beds under Denver, 

 Colorado. 



At exit of South 

 Platte River from 

 mountains. 



Near Colorado Springs 



Hardscrabble Creek, 

 near Caiion City 

 (Canon City group) 



Near Canon City 



Coal-beds of Raton 

 Hills (called Raton 

 Hills group). 



Lignite (Tertiary) 



Lignite (Tertiary) 

 ...do 



...do 



Lower Eocene. 



Lower Miocene . . 

 Upper Eocene . . . 



Middle Miocene. . 

 Middle Miocene . . 



Lower Tertiary. 

 Eocene 



Lignite Tertiary . 



Eocene 



Lignite Tertiary. 



Lignite Tertiary 



Tertiary 



Eocene 



Eocene .. 

 Tertiary . 



Eocene 



Lower Eocene . 



Tertiary 



Hay den. 



...do ... 

 ...do ... 



-do 



.do 



Lesqnereux- 

 ...do 



.do 

 .do 



Hayden 



Lesquereux. 

 Hayden 



-do 

 -do 



.do 



.do 



....do ..., 

 LeConte . 



Lesquereux. 

 Hayden 



Lesquereux. 

 ... do 



American Lower 



Eocene. 

 Tertiary 



American Lower 



Eocene. 

 Great Lignite 



group. 



Hayden. 



.do 



Lesquereux - 

 Hayden 



Lesquereux. 

 Hayden 



Reference. 



ReportlJ.S.Geol Sur- 

 vey of Ter., 1867- 

 '68-'69, p. 79. 



Report TJ. S. Geol. Sur- 

 vey of Ter., 1870, 

 p. 121. « 



ReportU.S. Geol Sur- 

 vey, 1807, 'C8, '69, p. 

 190. 



Report TJ. S. Geo!. Sur- 

 vey, 1870, p. 139. 



Report U.S. Geol. Sur- 

 vey, 1871, p. 306. 



ReportU.S. Geol. Sur- 

 vey, 1871, pp. 410- 

 417. 



Renort U. S. Geol. Sur- 

 vey, 1873, p. 306. 



American Journal of 

 Sciences- and Arts, 

 vol. vii, June, 187-1. 



ReportU.S. Geol. Sur- 

 vey, 1870, p. 74. 



ReportU.S.Geol. Sur- 

 vey, 1871, p. 300. 



Report U.S. Geol. Sur- 

 vey, 1870, p. 74. 



Report U. S. Geol. 

 Survey, 1870, p. 71. 

 ....Do. 



Report U. S. Geol. 

 Survey, 1870, p. 58. 



Report U. S. Geo]. 



Survey, 1867-'68 



-'69, p. 127. 

 ....Do., p. 129. 



Exploration ofSmoky 



Hill Railroad route, 



1808, p.—. 

 Report U. S. Geol. 



Survey, 1871, p. 306. 

 Report U. S. Geol. 



Survey, 1867-'68 



-'69, p. 134. 

 Report U. S. Geol. 



Survey, 1871, p. 306. 

 Report U. S. Geol. 



Survey, 1872, pp. 



410-417. 

 Report U. S. Geol. 



Survey, 1867-'68 



-'09, p. 137. 

 ...Do., p. 138. 



Report U. S. 

 Survey, 1873, 



Report U. S. 

 Survey, 1 

 -'69, pp. 149 



Report U. S. 

 Survev. 1873 



Report U. S. 

 Survey, 1 

 -'f,9, pp. 150 



Geol. 

 , p. 366. 



Geol. 

 867-68 

 to 190. 



Geol. 



p. 366. 



Geol. 

 867-68 

 to 190. ■ 



