Reference | {Deposit:: EIFLER, G.K., JR., COMPILER, 1974, IN BARNES, V.E., GEOLOGIC ATLAS OF TEXAS - BIG SPRING SHEET: TEXAS BUREAU OF ECONOMIC GEOLOGY, SCALE 1:250,000, 6 P}{Deposit:: HALE, D.K., 1972, EVIDENCE OF EARLY SPANISH MINING IN THE BIG COUNTRY OF WEST TEXAS: ABILENE CHRISTIAN COLLEGE, M.A. THESIS, 230 P. (P. 172)} |