| Reference | {Deposit:: MOORE, H.C., 1935, MARYLAND NAT. HISTORY SOC. BULL., V.5, NO.9 P. 49-57.}{Deposit:: OVERBECK, R.M., 1916, ECON. GEOL. V.11, NO.2,P.152.}{Deposit:: MATHEWS, E.B., AND WATSON, E.H., 1929, MARYLAND GEOL. SUR., BALTIMORE CO. REPT. P.287-288.}{Deposit:: PEARRE, N., 1961, USGS MINERAL INV. RESOURCE MAP MR-12.}{Production:: UNPUBLISHED COBALT REPORT} |