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 12454 AND 12456}{Deposit:: SHARPS, T.I., 1965, SULFUR DEPOSITS OF COLORADO: COLORADO SCHOOL OF MINES MINERAL INDUSTRIES BULL., V. 8, NO. 6 &&}{Deposit:: COLO. DIV. MINES ANNUAL OPERATOR REPORTS AND INSPECTORS REPORTS. &&}{Deposit:: NELSON, A.P., NO DATE , MINING DISTRICTS, PRODUCING MINES AND PROSPECTIVE PROPERTIES (OF GUNNISON CO.): COLO. STATE PLAN. COMM. UNPUB. REPT. &&}{Deposit:: LAKES, ARTHUR, 1898, ORES OF THE VULCAN MINE: MINES AND MINERALS, V. 18, JULY, P. 562-563} |