Geology and water resources of the Bighorn Basin, Wyoming . TENSLEEP Western slope of Bighorn Mountains. B. No Wood Canyon, Bighorn basin, Wyoming. STRATIGEAPHY—CARBONIFEEOUS ROCKS. 17 is thick, the basal member usually consists of 50 feet or more of soft buff sandstonenot clearly separable from the underlying Amsden formation, which usually occursin thinner beds. The upper sandstone frequently contains a few thin limestonelayers, which in other districts in the Bighorn Mountains have yielded Pennsylvanianfossils. Owl Creek Mountain region.—To the southward the Tensleep sandstone
Geology and water resources of the Bighorn Basin, Wyoming . TENSLEEP Western slope of Bighorn Mountains. B. No Wood Canyon, Bighorn basin, Wyoming. STRATIGEAPHY—CARBONIFEEOUS ROCKS. 17 is thick, the basal member usually consists of 50 feet or more of soft buff sandstonenot clearly separable from the underlying Amsden formation, which usually occursin thinner beds. The upper sandstone frequently contains a few thin limestonelayers, which in other districts in the Bighorn Mountains have yielded Pennsylvanianfossils. Owl Creek Mountain region.—To the southward the Tensleep sandstone isexposed only in a few small areas within the district considered in this paper. Thebeds in these localities exhibit no unusual features. EMBAR FORMATION. General relations.—Overlying the Tensleep formation, on the slopes of the OwlCreek Mountains, are massive limestone and cherts, to which Mr. N. H. Darton hasapplied the name Embar formation, from Embar post-office, at which the beds aretypically developed. The formation has a thickness of between
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