| Reference | {Deposit:: WINSLOW, ARTHUR, 1894, LEAD AND ZINC DEPOSITS OF MISSOURI, MO. GEOL. SURV., V. 7 , P. 681 - 682.}{Deposit:: HEYL, A. V., BROCK, M. R., JOLLY, J. L. AND WELLS, C. E., 1965 , REGIONAL STRUCTURE OF THE SOUTHEAST MISSOURI AND ILLINOIS - KENTUCKY MINERAL DISTRICTS USGS BULL. 1202-B, B1 - B20 .}{Deposit:: KIILSGAARD, T. H., HAYES, W. C., AND HEYL, A. V., 1967 , METALLIC MINERAL RESOURCES, IN: MINERAL AND WATER RESOURCES OF MISSOURI, V. 43 , 2ND SER., P. 54 .} |