Mineral Mountain Camp from Official 1893 Map of Pima County

References

• 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
• Schindler1914: Mining in the Santa Rita and Patagonia Mountains of Arizona, U.S. Department of Interior, 1915. Republished 2014 by Kerby Jackson.
• Mike Bertram
• USGS Mineral Resources Data System - using WGS84 (https://mrdata.usgs.gov/mrds/map-commodity.html#home)
• Index of Mining Properties in Pima County by Staton B. Keith, bulletin 189, Arizona Geological Survey, 1974
• Index of Mining Properties in Santa Cruz County by Staton B. Keith, bulletin 191, Arizona Geological Survey, 1975
• Mindat.org
• Mine Tales: Pima Mining district grew from humble beginnings by William Ascarza
• PIMA1893: Official 1893 Map of Pima County