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 - 1953 DO - 10.3133/ofr53273 UR - https://pubs.usgs.gov/publication/ofr53273 ID - ofr53273 ER -