‡Ref.: Bryan, K. (1925), The Papago country, Arizona, USGS Water-Supply Paper 499: 62-63, 190, 196-197.
Wilson, E.D. (1933) Geology and Mineral Deposits of Southern Yuma County, Arizona. Arizona Bureau of Mines Bulletin 134: 164-168, 172-173.
Wilson, E.D., Cunningham, J.B., and Butler, G.M. (1934), Arizona Lode Gold Mines and Gold Mining (revised 1967), Arizona Bureau of Mines Bull. 137: 151.
Keith, Stanton B. (1978) State of Arizona Bureau of Geology and Mineral Technology, Geol. Sur. Br. Bull. 192, Index of Mining Properties in Yuma Co., Arizona: 160 (Table 4).
Arizona Bureau of Mines file data.
A Cu-Au-Ag-Fe mining district located T.9-11S., R.17-18W., about 6 miles South of Wellton. Substantially in the Wellton Hills, but with several mines in the Copper Mountains to the ESE.
Mineralization is: (1) Lensing, irregular quartz veins along fissure zones in Mesozoic schist, gneiss, and granite with spotty oxidized copper and gold; and, (2) small gold placer deposits.
Workings include mostly small, surface prospects and shallow mines, operated sporadically from the late 1800's, and a few minor gold placer operations. Total mine production would be some 415 tons of ore containing about 8 tons of copper, 153 oz. of gold and 300 oz. of silver. Only about 28 oz. of gold, with 8 oz. of silver, have been reported as produced from placer operations.
