Latitude: 31°36'54"N
Longitude: 110°51'2"W
‡Ref.: Schrader, F.C. & J.M. Hill (1915), Mineral deposits of the Santa Rita and Patagonia Mountains, Arizona, USGS Bull. 582: 205.
Keith, Stanton B. (1975), Arizona Bureau of Mines Bull. 191, Index of Mining Properties in Santa Cruz County Arizona: 86 (Table 4).
U.S. Bureau of Mines field notes, AG13.
Arizona Bureau of Mines file data.
MRDS database Dep. ID file #10137937, MAS ID #0040230245.
A former underground Pb-Ag-Cu-Au mine located on 3 patented claims (Joplin claim; Duane claim; Missouri claim) in the NE¼NW¼ sec. 18, T.21S., R.15E., ¾ mile NE of the Alto Mine and about the same distance SE of the Wandering Jew Mine, at the head of a small side gulch on the steep side of Apache Gulch, on the south side, at an elevation of about 5,900 feet, on National Forest land. Owned/operated at times, or in part, by Mr. Campbell (circa 1879); the Joplin Mining Co. of Tucson (circa 1915); and, C.A. Pierce.
Mineralization is irregular, lensing, quartz-fissure vein containing spotty ore shoots of sulfides that are oxidized and enriched in silver values and copper carbonates. The wall rock is Jurassic quartz monzonite and granite showing some disseminated sulfide mineralization.
The country rock is fine-grained, brownish-gray quartz diorite. The vein, consisting mainly of altered diorite and quartz, dips steeply to the south and seems to carry pretty continuously on the footwall an oreshoot 3 inches (7.5 cm) to 1 foot (30 cm) wide and in a few places reported to be 2 feet wide, containing sulphides and copper carbonates near surface. The country rock is impregnated with disseminated sulphides and in places also contains good ore.
Workings include about 1,000 feet of openings, including a 110 foot deep shaft, a 100 foot long drift, and a 220 foot long crosscut tunnel. Worked intermittently from the 1880's through 1926. Produced some 270 tons of ore averaging about 14% Pb, 13 oz. Ag/T, 2% Cu, and 0.3 oz. Au/T.
Mineral List
3 entries listed. 2 valid minerals.
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