Big Stick Prospect

The Big Stick prospect is about one eighth of a mile southeast of the Gray camp, near the contact of sheared altered granite porphyry that is intrusive into diorite, as shown in one of the tunnels. The ore minerals, which are disseminated in the country rock and concentrated in seams, are pyrite and chalcopyrite, locally coated with covelite and chalcocite.²

Also known as Ledge mine.

Ownership

unclear

Location

31.46667,-110.78417¹⁰

Mineral Products

copper and iron sulfides¹⁰

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, 11/21/23
4. USGS Mineral Resources Data System - possibly using NAD72 (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
6. Geology of the Three R Mine, Palmetto Mining District, Santa Cruz County, Arizona by Paul Handverger, MS thesis 1963, University of Arizona
7. https://mrdata.usgs.gov/mrds/show-mrds.php?dep_id=10046338
8. https://azdeq.gov/Three-R-Mine
9. https://tucson.com/news/local/three-r-mine-contributed-to-arizonas-rep-for-copper-production/article_2a25e1e1-7280-5fd5-be97-a40732a39b1b.html
10. mindat.org