Reference | {Deposit:: OLSON, J.C., STEVEN, T.A., AND HEDLUND, D.C., 1975, GEOLOGIC MAP OF THE SPRING HILL CREEK QUADRANGLE, SAGUACHE COUNTY, COLORADO: USGS MAP MF-713}{Deposit:: HEDLUND, D.C., AND OLSON, J.C., 1975, GEOLOGIC MAP OF THE POWDERHORN QUADRANGLE, GUNNISON AND SAGUACHE COUNTIES, COLORADO: USGS MAP GQ-1178}{Deposit:: BLM MINERAL SURVEY MS 16973} |