New Colorado Mine

Mining District and Mines

Cerro Colorado District

USBM:

Location

20S 10E E Central 17, 31.6751, -111.3092W⁷

Mineral Products⁷

Ag, Au, Pb, Cu, Zn (Hg).

Ownership⁷

Owner Name: Silver Colorado Mng. Corp. of Am.

Type of Operation and Production⁷

Shallow shaft and pit workings. Prospected and worked from 1800’s to about 1900, with estimated production of some 50 tons of ore averaging about 120 oz. Ag/T, 2.7 oz. Au/T, 19% Pb, and 2% Cu.

Geology⁷

Irregular, partially oxidized quartz fissure veins with argentiferous galena, freibergite, copper carbonates and oxides, sphalerite and rich silver mineralization. Minor barite and calcite and cinnabar. Strong iron and manganese oxides. Wall rock is Cretaceous andesite porphyry,
.

References

1. Mineral Appraisal of Coronado National Forest, Part 12, Santa Rita Mountains Unit, MLA11-94 (1994). SR 591-609
   https://data.azgs.arizona.edu/api/v1/collections/BMRI-1552428987530-264/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. mindat.org
4. USGS Mineral Resources Data System - possibly using NAD72 (https://mrdata.usgs.gov/mrds/map-commodity.html#home)
5. https://westernmininghistory.com/mine-detail/10162214/
6. Index of Mining Properties in Santa Cruz county, Arizona; Stanton B. Keith, Arizona Geological Survey, Bulletin 191 (1975).
7. Index of Mining Properties in Pima county, Arizona; Stanton B. Keith, Arizona Geological Survey, Bulletin 189 (1974).