PEALE.J GEOLOGY FORT UNION OE GREAT LIGNITIG GROUP. 143 



Fort Union or Great Lignite group — Continued. 



Locality. 



Baton beds 



Apishpa Creek. Span- 

 ish Peaks. and Trini- 

 dad, Colorado. 



Eaton Pass, Purga- 

 tory Canon. 



Katon Mountains . . - 



Coal-beds of east 

 edge of mountains 

 in Colorado. 



Fisher's Peak, Eaton 

 Mountains. 



Eaton Mountains 



•Central and Xorth 



Colorado. 

 Lisnites of Colorado 



Basin. 



South Park.northeast 

 of Fair Play. 



Grand Eiver, in Mid- 

 dle Park. 



Mount Bross, in Mid- 

 dle Park. 



Troublesome Greek 

 and Willow Creek 

 in Middle Park. 



Troublesome Creek 

 and Monnt Bross 

 (Middle Park). 



Middle Park, Mount 

 Bross. 



Placer Mountains, 

 south of Santa Fe. 

 Kew Mesico(Placer 

 Mountain Group). 



Lifruitic bed.'jof Xew 

 Mexico (at leasjt as 

 far south as Placer 

 Mountain). A n - 

 thracite coal. 



Lijniitf; bedsof New 

 Mexico and San 

 Juau. 



Description of strata. 



Sandstones and clays 

 overl yi n g Creta- 

 ceous layers. 



Yellow and gray 

 sandstones and 

 laminated arena- 

 ceous clays. 



Cretaceous. 



Tertiary . 



Eocene 



Lower Eocene . . . 



Lower Tertiary.. 

 Eocene 



American Lower 



Eocene. 

 American Lower 



Eocene. 

 ...do 



Cretaceous 



Upper Cretaceous 



Lignitic Tertiary. 



Lignitic Tertiary 



Older Tertiary 



Lower Tertiary . 



Authority. 



LeConte . 



Hayden . 



Lesquereus... 

 ...do 



Hayden 



Lesquereux. 



...do 



....do 



...do 



Cope 



J. J. Stevenson 



Havden. 



...do 



American Upper 

 Eocene or Lower 

 Miocene. 



Upper Miocene... 



Lower Tertiary . . . 



American Lower 

 Eocene. 



Cretaceous . 



...do 



.do 



Lesquerenx. 



.do 



Hayden . 



Lesquereux 



Newberry . . 



Eoference. 



Eeport Exploration 

 Smoky Hill Eail- 

 road route, 1808, p. 

 66. 



...Do., p. 153. 



Eeport U. S. Geol. 

 Survey, 1871, p. 306. 



Eeport ■ U. S. Geol. 

 Survey', 1872, pp. 

 410-417. 



Eeport U. S. Geol. 

 Survey, 1867-'68 

 -'69, p! 189. 



Supplement to Fifth 

 Annual Eeport U. S. 

 Geol. Survey, 1871. 



Eeport U. S. Geol. 

 survey, 1873, p. .366. 



Eeport U. S. Geol. 

 Survey, 1873, p. 306. 



American Journal of 

 Sciences and Arts, 

 vol. vii, June, 1874. 



Eeport U. S. Geol. 

 Survey, 1873, pp. 

 453, 454. 



Proceedings of So- 

 ciety of Nat. Hi.st., 

 city of New York, 

 2d series, No. 4, 

 1874, pp. 93, 94. 



Also "Geological Eo- 

 lations of the Lig- 

 nitic Groups," read 

 before Amer. Phil. 

 Soc, June 18, 1875. 



U. S. Geol. Survey 

 Eeport of 1 867-' 68 

 -69, p. 179. 



Also Eeport U. S. 

 Geol. Survey,' 1873, 

 p. 38. 



Eeport of U. S, Geol. 

 Survey of lfi67-'68 

 -'69, p. 183. 



Also Eeport U. S. 

 Geol. Survey, 1873, 

 p. 81. 



Eeport U. S. Geol. 

 Survey, 1807-'(i8 

 -'69, pp. 183, 184. 



Eeport for 1873, p. 81. 



Eeport U. S. Geol. 

 Survey, 1873, p. 62. 



Eeport U. S. Geol. 

 Survey, 1873, p. 366. 



....Do., p. 366. 



Eeport U. S. Geol. 

 Survey, lti67-'68 

 -'69, p'. 190. 



Eeport U. S. Geol. 

 Survey 1873, p. 366. 



Also Amer. Jour, of 

 Sciences and Arts, 

 vol. vii, June, 1&74. 



Aruerican Journal of 

 Sciences and Arts, 

 vol. vii, April, 1874, 

 p. 90. 



Some of the localities included in the table just given will be given 

 in some of the tables to follow, I will not attempt to account for the 

 discrei>ancies. I have quoted the opinions relative to the age of the 



