TY - RPRT TI - The Robinson and Weatherly uraniferous pyrobitumen deposits near Placerville, San Miguel County, Colorado AU - V.R. Wilmarth AU - R.C. Vickers PY - 1952 DO - 10.3133/tei176 UR - https://pubs.usgs.gov/publication/tei176 ID - tei176 ER -