| Reference | {Deposit:: DAY, D.T., AND RICHARDS, R.H., 1906, USEFUL MINERALS IN THE BLACK SANDS OF THE PACIFIC SLOPE: U.S. GEOLOGICAL SURVEY MINERAL RESOURCES OF THE UNITED STATES, CALENDAR YEAR 1905, P. 1192-1193.}{Deposit:: VANDERWILT, J.W., 1947, MINERAL RESOURCES OF COLORADO: COLORADO MINERAL RESOURCES BOARD, P. 196.} |