Mining District and Mines
Harshaw District, mine on Forest Road 215.
The Chief group of copper prospects consists of 12 claims adjoining the World's Fair property on the southwest and near the 3 R group on the northwest. It is owned by E. E. Bethel, of Patagonia. It is opened by shallow shafts to depths of 50 feet or more, aggregating about 500 feet of work. It is said that recently the group was leased to the Calumet & Arizona Copper Company for $75,000 for a period of 2 years and that it is being developed at a substantial rate.6
Location
31.4768N, 110.7443W7
Owners
E. E. Bethel, Calumet & Arizona Copper Co., Wonder Mining Company5
Mineral Products
Cu, Pb, Ag, Au5
Geology
Light-colored rhyoliticand alkalitic lava and tuff.
Silitic volcanics - tufff, volcanic conglomerate, and brecia.
Hematite, limonite, silexite
Complex system of fissure veins including NW-trending Flux veinand general structure common to regional formations is a sheeting which dips
Alum Gulch Fault Block
N60E trending silexite dyke
Volcanics locally much altered to quartz, sericite, epidote, pyrite, carbonate5
Type of Operation and Production
Area of mine which has been reworked.

Reworked Mine area
References
- Index of Mining Properties in Santa Cruz County, Arizona, by Staton B. Keith, Bulletin 191, Arizona Geological Survey, 1975. No entry
- Mindat.org - small amount of data
- MRDS records: 31.44904, -110.78538
- Mineral Appraisal of Coronado National Forest, Part 7 - Patagonia Mountains - Canelo Hills Unit by Mark Chatman, 1994, No entry
- Arizona Department of Mines report: http://docs.azgs.az.gov/OnlineAccessMineFiles/C-F/ChiefgroupSantacruz112.pdf
- The Mineral Deposits of the Santa Rita and Patagonia Mountains by Frank C. Schrader, 1914 - p. 251
- Mike Bertram 12/9/23
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