Latitude: 31°42'0"N
Longitude: 110°52'31"W
‡Ref.: Schrader, F.C. & J.M. Hill (1915), Mineral deposits of the Santa Rita and Patagonia Mountains, Arizona, USGS Bull. 582: 168, 178.
U.S. Bureau of Mines field notes, CU53.
Arizona Bureau of Mines card file Santa Cruz County.
MRDS database Dep. ID file #10283468, MAS ID #0040230368.
A Cu-Zn-Pb prospect with surface and underground workings located in the SE¼SE¼ sec. 11, T20S, R14E, on the east side of the west fork of Madera Canyon at an elevation of about 6,170 feet, on National Forest land.
Mineralization is a 2 foot wide vein or ledge in massive, partly iron- and copper-stained diorite. The ledge trends N.75ºW. and stands vertical. It consists mainly of closely sheeted or sheared diorite and quartz, about 4 inches of which is brownish iron0-stained and contains some sulphide, while the remainder, which is less altered, is generally impregnated with finely disseminated pyrite, chalcopyrite, malachite, and a little cuprite, with which are associated some galena and specularite. There is also some concentration of the ore minerals with a little associated quartz in small pockets along the walls, particularly the south wall. The vein is generally frozen to the walls but in places a film of copper-stained gouge gives a good breaking face.
The diorite here, as nearly everywhere else, is very close and tight, and no indications of dikes or fissures of any kind appear nearby.
Workings include cuts and a short drift.
Mineral List
6 entries listed. 5 valid minerals.
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