Bulletin of the United States Geological Survey, Випуски 103 – 108

aperture Archean artesian augite Baculites basalt base basin beaks border bostonite bowlders camptonite canyon clay coal Coalville Colorado Colorado formation Columbia lava conglomerates convex costæ Coulee creek Cretaceous diabase dikes dorsal Douglas county east fauna feet Fort Benton Foss fossils genus geological glacial glacier hinge horizon hornblende Huerfano park inches Inoceramus Invert John Day John Day beds Kittitas lake Lake Chelan Laramie layers left valve limestone lines of growth Livingston lobe Locality lower margin Meek miles monchiquite Montana moraine mountain Moxee nearly nodes oblique Ostrea plagioclase portion posterior prominent region Rept ridge right valve rocks rounded sandstone Scaphites shales shell side slightly slopes species specimens spire strata stream surface temperature Terr terraces thickness thin transverse tube U. S. Geol umbilicus umbonal upper Utah valley volcanic volutions White whorl Yakima river Yellowstone