Uplift of the Bighorn Mountains, Wyoming and Montana--a sandstone provenance study / by C.E. Whipkey, V.V. Cavaroc, and R.M. Flores (Evolution of sedimentary basins--Powder River Basin ; ch. D) (U.S. Geological Survey bulletin ; 1917-D)
Uplift of the Bighorn Mountains, Wyoming and Montana--a sandstone provenance study / by C.E. Whipkey, V.V. Cavaroc, and R.M. Flores
(Evolution of sedimentary basins--Powder River Basin ; ch. D) (U.S. Geological Survey bulletin ; 1917-D)