| Reference | {Deposit:: MCKNIGHT, E.T., NEWMAN, W.L., AND HEYL, A.V., JR. (COMPILERS), 1962, ZINC IN THE UNITED STATES, EXCLUSIVE OF ALASKA AND HAWAII: USGS MINERAL INV. RESOURCE MAP MR-19, SEPARATE TEXT, 18 P.}{Deposit:: WINSLOW, ARTHUR, 1894, LEAD AND ZINC DEPOSITS (MISSOURI): MISSOURI GEOLOGICAL SURVEY, V. 7, P. 522-24, 531-33, 686-90.} |