ASMOA No.1 Mine

Little is known of the ASMOA mine. It seems to have been a relatively recent creation.

It appears in the 1992 list of Copper Oxide resources⁸, but does not appear in the 1975 Keith document⁴. It also does not appear in the 2023 Rasmussen and Keith⁹ table of ore production from the Cerro Colorado district.

Hut Remains³

Remains of an adobe wall³

Shaft 1³

Shaft 1 detail³

Shaft 2³

Location

20S 10E 25 N2⁸

31.8172 ,-111.0221³

Mineral Products

Ag⁸

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, 2/24/26
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. WesternMiningHistory.com
7. https://www.gvrhc.org/Library/LuckyLedgeMine.pdf
8. Copper Oxide Resources, Niemuth and Phillips, Arizona Department of Mines and Mineral Resourses, 1992
9. Arizona Mineral Districts v.2 Pima County by Jan C. Rasmussen and Stanley B. Keith.