TY - RPRT TI - Uplift of the Bighorn Mountains, Wyoming and Montana; a sandstone provenance study AU - C.E. Whipkey AU - V.V. Cavaroc AU - R. M. Flores PY - 1991 DO - 10.3133/b1917d UR - https://pubs.usgs.gov/publication/b1917D ID - b1917D ER -