S ACROSS Till: (MJKAT I'.ASIN of ittai-i. 



•iated witli gray and brown shales and slates, and dipping 

 southwest. Intei-strathied with them I noticed several 

 mmediately underlying the most prominent stratum of 

 reral feet thick. The coal was covered with detritus, 

 le weathered fragments by digging with the knife. It 

 of Deer Creek, and is probably of the same age. Its 



e, from the evidence found on our route, whether this 

 Fertiary or Upper Cretaceous, yet it is almost certain that 



}\v fossils, and it is not altogether certain whether they 

 ■his formation, or from outliers of the Cretaceous beds. It 

 cene formation, and therefore older than the Great Lignite 

 vhich is" now generally conceded to date from that period. 

 mse we find the Miocene era represented lower down on 

 luff formation (see section II), which is apparently coeval 

 i> Bad Lands of White River, and overlies another series 

 , which, in their turn, overlie the Lignite formation. No 



the country have ever been observed in a disturbed con- 

 es from beneath, while the Platte River lignites have 

 ug at an angle of 45 . Another Lignite formation on the 

 Judith Uiver, is characterized bv its organic remains as 

 publications of Mr. Meek, Dr. Harden, and Prof. Leidy). 

 y subterranean agencies, like the Platte River strata, and 

 more and differently developed, this may be the result of 



might perhaps be of the same age (?). 



on overlies Cretaceous deposits of the age of No. Ill of 



indications of Xos. IV and V were also noticed, and I am 

 m that the Lignite formation occupies the horizon of No. 

 far distant Lignite formation higher up on Platte River, 



it; holding possibly a similar position in relation to the 

 >ds, as do the highest ( Carboniferous strata in Eastern Kan- 



fonnation). I have found in rocks containing particles of 

 h Mr. Meek refers to Panopoea, and considers as evidences 

 beds in which they occur, the lithological character of 

 th the decidedly Upper Cretaceous as with the Lignite 



points higher up the rive: 

 ave found fragments of 



* exactlv 



us loose on 

 like some oi 



[rifted there; but it is ren 

 the lignites, if they are i 



larkable 1 



i the rock in 

 that they ah 

 cted with th 



