Ref.: Jones, R.D. (1957) Geology of the Cerro Colorado mining district, Pima County, Arizona: Tucson, University of Arizona, M.S. thesis, 59 p., 2 sheets, scale 1:14,080.
Jones, R.D. (1957) Geology of the Cerro Colorado mining district, Pima County, Arizona [abs.]: Arizona Geological Society Digest: 1: 42-43.
Keith, Stanton B. (1974), Arizona Bureau of Geology & Mineral Technology, Geological Survey Branch Bull. 189, Index of Mining Properties in Pima County, Arizona: 113 (Table 4).
Arizona Bureau of Mines file data.
MRDS database Dep. ID file #10039561, MRDS ID #M050284; and, Dep. ID #10137977, MAS ID #0040190131.
A former small surface and underground Ag-Au-Pb-Cu mine located in the SE ΒΌ sec. 14, T.20S., R.10E., 8 miles NNW of Arivaca. Owned by Udall. Operated by Soloman & Woatman (1935).
Mineralization is spotty primary and secondary lead minerals and minor copper carbonates in an oxidized and supergene enriched quartz-fissure zone in Cretaceous andesite porphyry. Depth to bottom of ore is 21.34 meters, the ore body strikes N85E and dips 75SE.
Workings include a shallow shaft and surface operations to 24.38 meters deep. Worked sporadically from the early 1800's to 1939. Some 100 tons of ore were produced, averaging about 20 oz. Ag/T, 0.2 oz. Au/T, with minor Pb & Cu.
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Map Reference: 31°40'57"N , 111°16'54"W
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Mineral List:3 entries listed. 2 valid minerals.
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