Anderson Mine

The Snyder and Conglomerate mines may have combined. Only one line of shafts and adits was found.

Alternate Names

Conglomerate

Company

Midland Copper Co., Phelps Dodge Corp., Snyder Mng. & Mllg. Co.⁶

Mining District and Mines

Greaterville District

Arizona Geological Survey Mining data

Location

19S 15E⁶

31.73235, -110.76318³

31.73013, -110.76735 (WGS84) ⁴

Mineral Products

Pb, Ag, Au, Cu-.⁶

Geology

Irregular and lensing quartz vein with partially oxidized lead and copper mineralization in a strongly brecciated and silicified fault zone along a contact of Precambrian granite and Paleozoic limestone.⁶

Type of Operation and Production

Shaft, and tunnel operations. Worked sporadically from early 1900's to 1955, producing some 1,000 tons of ore averaging about 10% Pb, 8 oz. Ag/T and minor Cu and Au.⁶

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, F. C. Schrader, 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 Stanton B. Keith, bulletin 1991, Arizona Geological Survey, 1975
6. Index of Mining Properties in Pima County by Stanton B. Keith, bulletin 189, Arizona Geological Survey, 1974