TY - RPRT TI - Mineral resources of the Popo Agie Primitive Area, Fremont and Sublette Counties, Wyoming AU - Robert Carl Pearson AU - Thor H. Kiilsgaard AU - Lowell L. Patten AU - R.E. Mattick PY - 1971 DO - 10.3133/b1353b UR - https://pubs.usgs.gov/publication/b1353B ID - b1353B ER -