Ref.: McClymonds, N.E. (1959), Paleozoic stratigraphy of the Waterman Mountains, Pima County, Arizona: Arizona Geological Society, Southern Arizona Guidebook II: 67-76.
Keith, Stanton B. (1974), Arizona Bureau of Geology & Mineral Technology, Geological Survey Branch Bull. 189, Index of Mining Properties in Pima County, Arizona: 144 (Table 4).
Arizona Bureau of Mines file data.
A Cu-Pb-Zn-Ag-Au mining area located in T.12S., R.8-9E., in the Waterman Mountains, and including Silver Hill, partially on the Tohono O'odom (Papago) Indian Reservation.
Mineralization is vein-like deposits of base metal carbonates and sulfides along fault and fracture zones in steeply folded Paleozoic formations. Some oxidized copper is found in the Cretaceous sediments and isolated Paleozoic outcrops.
Workings include shaft and adit operations. Worked intermittently since the late 1880's with a total production through 1972 of some 25,000 tons of ore containing about 750 tons of Cu, 780 tons of Pb, 490 tons of Zn, 110 oz. of Au and 130,000 oz. of Ag.
