TY - RPRT TI - Summary report on the geology and mineral resources of the Poker Jim Ridge and Fort Warner areas of the Hart Mountain National Antelope Refuge, Lake County, Oregon AU - George Walton Walker AU - Donald A. Swanson PY - 1968 DO - 10.3133/b1260m UR - https://pubs.usgs.gov/publication/b1260M ID - b1260M ER -