| Reference | {Deposit:: HEYL, A.V., AND PEARRE, N.C., 1965, MARYLAND GEOL. SUR. BULL. 28, 71P.}{Deposit:: PEARRE, N., 1961, USGS MINERAL INV. RESOURCES MAP MR-12.}{Deposit:: OVERBECK, R.M., 1916, ECON. GEOL., VOL. 11, NO.2,P. 158-159.}{Deposit:: SINGEWALD, J.T., JR., 1946, MARYLAND DEPT. GEOL., MINES AND WATER RESOURCES, CARROLL AND FREDERICK CO., REPT. P. 132-162.}{Production:: UNPUBLISHED COBALT REPORT} |