The Reagan camp, in which the deposits contain tungsten minerals., is in the low northwest end of the quartz monzonite area of Mount Benedict, 3 miles north-northwest of the Mount Benedict ore deposits, 2½ miles south-southeast of Calabasas, and a quarter of a miles east of the railroad.

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
4. USGS Mineral Resources Data System - using WGS84 (https://mrdata.usgs.gov/mrds/map-commodity.html#home)
5. Index of Mining Properties in Pima County by Staton B. Keith, bulletin 189, Arizona Geological Survey, 1974
6. Index of Mining Properties in Santa Cruz County by Staton B. Keith, bulletin 191, Arizona Geological Survey, 1975
7. Mindat.org