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Black Cat claims (Black Cat group), Twin Peaks District, Greenlee Co., Arizona, USA

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A former surface and underground Mn mine located in sec. 33, T6S, R32E, 7.5 miles ESE of York on Willow Creek, on private land. Discovered in 1952 by L.A. Billingsley and Lewis Dean. First produced in 1953. Owned by L.A. Billingsley and Lewis Dean (1961).

Mineralization is lens-shaped ore bodies with Mn minerals occurring in lenses along two narrow parallel veins, 800 feet apart, that strike northward and dip steeply to the east (80E), and traverse volcanic rocks. The ore zone is 0.76 meters wide. The ore lenses are separated along both the strike and dip by barren intervals or by stringers of ore too narrow to mine. Surface oxidation present.

Area structures are steep northerly-trending zones of shearing and brecciation in volcanic rocks.

Mineral List

3 entries listed. 2 valid minerals.

The above list contains all mineral locality references listed on This does not claim to be a complete list. If you know of more minerals from this site, please register so you can add to our database. This locality information is for reference purposes only. You should never attempt to visit any sites listed in without first ensuring that you have the permission of the land and/or mineral rights holders for access and that you are aware of all safety precautions necessary.


Farnham, L.L., Stewart, L.A., and Delong, C.W. (1961), Manganese Deposits of Eastern Arizona, US Bureau of Mines Information Circular 7990: 103-104.

U.S. Bureau of Mines files, Black Cat group.

Arizona Department of Mineral Resources file data, Black Cat group.

MRDS database Dep. ID #10108999, MRDS ID #M001678; and Dep. ID #10137293, MAS ID #0040110030.

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