| Reference | {Deposit:: PEARRE, N., 1961, USGS MINERAL INV. RESOURCES MAP MR-12.}{Deposit:: OVERBECK, R.M., 1916, ECON. GEOL., VOL. 11, NO.2, P.153-165.}{Deposit:: SINGEWALD, J.T., JR., 1946, MARYLAND DEPT. GEOL. MINES AND WATER RES., CARROLL AND FREDERICK CO. REPT. P.159-160}{Deposit:: WILLIAMS, G.H., 1893, MINES AND MINERALS IN MARYLAND, ITS RESOURCES INDUSTRIES, AND INSTITUTIONS, PREPARED FOR BOARD OF WORL* FAIR(CHICAGO, 1893)MANAGERS, P. 112-113.}{Production:: UNPUBLISHED COBALT REPORT} |