Washington Mine

Alternate Names

Pride of the West.

Company

Salisbury, Clark, Chapin, Wifley, Pride of the West Co., Duquesne Mg. & Reduction Co., Humphrey Mg. Co., Byrd, Radon Mg. Co., Nash Mines

Location

?

Mineral Products

Cu, Ag, Zn, Pb-, Au-

Type of Operations

Tunnel & shaft operations. Worked from early1880's and sporadically through 1955, producting some 103,000 tons of ore averaging about 4.5% Cu, 4 oz. Ag/T, 1.4% Zn, and minor Pb and Au.⁵

Geology

Massive, banded and bedded, partly drusy, replacement bodies of irregularly mixed quartz, calcite, garnet, sphalerite, chalcopyrite, galena, pyrite, pyrrhotite, and magnetite in crystalline and pyrometamorphosed Permian Naco Group limestone along a contact with intrusive Laramide granodorite. Shallow oxidation and some supergene enrichment.⁵

References

1. Mineral Appraisal of Coronado National Forest, Part 12, Santa Rita Mountains Unit, MLA11-94 (1994). SR 591-609
   http://repository.azgs.az.gov/sites/default/files/dlio/files/nid1813/usbm_mla_011-94.pdf
2. Mining in the Santa Rita and Patagonia Mountains of Arizona, U.S. Department of Interior, 1915. Republished 2014 by Kerby Jackson.
3. Mike Bertram,
4. USGS Mineral Resources Data System - using WGS84 (https://mrdata.usgs.gov/mrds/map-commodity.html#home)
5. Index of Mining Properties in Santa Cruz County by Staton B. Keith, bulletin 1991, Arizona Geological Survey, 1975