| Reference | {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:: SINGEWALD, J.T., JR., 1913, CEBOLLA CREEK, IN THE TITANIFEROUS IRON ORES IN THE UNITED STATES, THEIR COMPOSITION AND ECONOMIC VALUE: USBM BULL. 64, P. 135-141.}{Deposit:: HARRER, C.M., AND TESCH, W.J., JR., 1959, RECONNAISSANCE OF IRON OCCURRENCES IN COLORADO: USBM IC-7918, P. 33.}{Production:: HARRER AND TESCH, 1959, P. 33} |