TY - RPRT TI - Geologic map of the Murphys Well, Pilot Cone, Copper Mountain, and Poinsettia Spring quadrangles, Mineral County, Nevada AU - E. B. Ekren AU - F.M. Byers PY - 1986 DO - 10.3133/i1576 UR - https://pubs.usgs.gov/publication/i1576 ID - i1576 ER -