Enzenberg Mine

The Enzenberg or Mountain King mine is located at an elevation of 5,950 feet on the southeast flank of Castle Dome, 3 miles northwest of Greaterville. It is on a southwest dipping quartz vein which is in granite and is associated with a 2 foot rhyolite dike. The vein is opened by a 65 foot tunnel and shows two types of mineralization, pyrite with a little chalcopyrite having been formed on the footwall side and dark massive galena and sphalerite with minor amounts of pyrite on the handing wall side. The ore is all well banded. Several feet of water stands in the tunnel².

Alternate Names

Mountain King, Silver Butte

Company

L. & R.; Comstock Mines Co.; Hurbut, Jones & Kline; Arizona Comstock Mng. Co.⁶

Mining District and Mines

Greaterville District

Arizona Geological Survey Mining data

Location

19S 15E S, NE¼ 23⁶

Mineral Products

Pb, Zn, Ag, Au, Cu-.⁶

Geology

Partially oxidized quartz vein associated with a Laramide Rhyulite dike cutting Precambrian granite. Contain spotty pyrite with minor chalcopyrite on footwall and irregular banded galena, sphalerite, and minor pyrite on the hanging wall.⁶

Type of Operation and Production

Tunnel workings. A small tonnage of high grade Pb - Ag ore was shipped in the late 1800s.⁶

Plan of samples¹

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,
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. Index of Mining Properties in Pima County by Stanton B. Keith, bulletin 189, Arizona Geological Survey, 1974