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Mines Map
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Mine Report |
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Bonanza Mine | |
Mining District and MinesTyndall District- western slope of southern part of Santa Rita Mountains1 Devil’s Cash Box group, Veta Grande; Orosco, Alabama Queen Mg. Co.,O’Neil & Candelaria, Ellefson1. Devil’s Cash Box - toward the outer edge of the Montosa-Caliente belt of Paleozoic sediments there is a monoclinal north-south foothill hogback ridge capped by limestone dipping 40° - 60° W. into the Santa Cruz Valley. The ridge extends from a point near Agua Caliente to Montosa Basin, being about a mile long, and is separated from the slope of the main ridge by a narrow piedmont valley. From the mineral deposits found in it at various points it is know as the Devil’s Cash Box. It was not examined in this work. Among the producing properties it is said to contain are the Orosco and Sheehy-O’Donnell. The Orosco, owned by J. M. Orosco, is said to have shipped some very rich silver-lead ore.2 LocationT: 20S; R: 14E; Sec: Ce. 191 GPS: 40.0094N, 77.3980W3 Mineral ProductsPb, Ag, Cu, Zn, Au1 GeologyLargely oxidized, irregular replacement lenses of argentiferous galena, chalcopyrite, pyrite, and sphalerite in Permian limestone along a fault contact with Cretaceous arkose, in a folded and faulted synclinal thrust block. Some high grade zinc carbonate ore.1 Type of Operation and ProductionShaft and adit operations. Worked intermittently from early 1900’s through 1961, producing some 300 tons of ore averaging about 8% Pb, 8 oz Ag/t, 3% Cu, and minor Au.1 References
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