References
CUMMINS, W.F., 1891, TEXAS GEOLOGICAL SURVEY, 2ND ANNUAL REPORT, P. 359-552 (PL. 18 SHOWS MINE IN GENERAL AREA).HENDERSON, C.W., 1921A, U.S. GEOLOGICAL SURVEY, MINERAL RESOURCES OF U.S., 1917, PT. I, METALS, P. 721-722 (P. 721).LLOYD, A.M., AND THOMPSON, W.C., COMPILERS, 1929, MAP OF PERMIAN BASIN: TEXAS BUREAU OF ECONOMIC GEOLOGY, SCALE 1:220,000.RISTER, C.C., 1941, LAND HUNGER: NORMAN, OKLAHOMA UNIVERSITY PRESS, P. 140.EWING, F.E., JR., 1954, COPPER MINING IN W. TEXAS: ABILENE, WEST TEXAS HISTORICAL ASSOCIATION, YEARBOOK, V. 30, P. 17-29 (P. 23).STROUD, R.B., MCMAHAN, A.B., STROUP, R.K., AND HIBPSHMAN, M.H., 1970, U.S. BUREAU OF MINES REPORT OF INVESTIGATIONS 7422, 103 P. (P. 17, 37, 38).SMITH, G.E., 1974, TEXAS BUREAU OF ECONOMIC GEOLOGY, REPORT OF INVESTIGATIONS 80, 84 P. (P. 62-63, SITES I-H, I-41, I-43).HALE, D.K., 1977, MINING IN THE TEXAS FRONTIER: STILLWATER, OKLAHOMA STATE UNIVERSITY, PH.D. DISSERTATION, 344 P. (P. 155, 206).HENTZ, T.F., AND BROWN, L.F., JR., 1987, IN BARNES, V.E., GEOLOGIC ATLAS OF TEXAS - WICHITA FALLS-LAWTON SHEET: TEXAS BUREAU OF ECONOMIC GEOLOGY, SCALE 1:250,000.SCHOCH, E.P., 1918, TEXAS BUREAU OF ECONOMIC GEOLOGY, BULLETIN 1814, 256 P. (P. 111, 203).DALLAS MORNING NEWS (JAN. 20, 1918), SEC. 2, P. 6.MCCLELLAN, G.B., 1877, PRIVATE PROSPECTUS (MENTIONS MEDICINE MOUNDS DEPOSITS).GALLOWAY, W.E., 1970, TEXAS BUREAU OF ECONOMIC GEOLOGY, OPEN FILE REPORT 1970-6, 115 P. (FIG. 4).