A former surface and underground Pb-Cu-Ag-Mo-Au-V claims group/mine that extend from Reagan Camp on the west up Keystone Gulch and Little Chocolate Canyon to the Schneider Group on the east, about 1¾ miles SW of Chilito ghost town. They are bounded on the north by the Seventy-Nine Lead-Copper Co. claims (79 Mine) and approximately on the south by Chocolate Canyon. Early history is not documented. Mr. Lee Reagan acquired them about 1923 and had an active interest in them until circa 1950.
Mineralization is ore in streaks and pockets hosted in the Naco Limestone. Naco limestone and a large plug of basalt porphyry crop out over most of the claims. The best mineral showing is along the north contact of the basalt porphyry with Naco limestone. This contact, where exposed in Keystone Gulch, dips steeply north. The thin-bedded Naco Limestone shows mineraliztion up-dip from the porphyry in a few favorable places.
East of the Keystone fault in Little Chocolate Canyon, prospecting in diabase has disclosed several small veins containing lead and copper minerals.
Workings on the south side of Keystone Gulch, ½ mile east of Reagan Camp, several adits and cross-cuts have been driven at different elevations.
Production has been small and very irregular from several scattered prospects and small workings. The principal workings are in Keystone Gulch.
Mineral List
Mineral list contains entries from the region specified including sub-localities
The above list contains all mineral locality references listed on mindat.org. 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 mindat.org 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.
References
Kiersch, G.A. (1951) Arizona Bureau of Mines Bulletin 158: 81-82.
Wilson, E.D. (1951), Arizona zinc and lead deposits, part II, Arizona Bureau of Mines Bull. 158: 81-82.
Galbraith, F.W. & D.J. Brennan (1959), Minerals of Arizona: 89.
Banks and Krieger (1977) USGS Map GQ-1391.
Anthony, J.W., et al (1995), Mineralogy of Arizona, 3rd. ed.: 426.
U.S. Bureau of Mines - Arizona Bureau of Geology and Mining Technology file data.
MRDS database Dep. ID #10026730, MRDS ID #M000004; and Dep. ID #10037112, MRDS ID #M030433.
This page is currently not sponsored. To sponsor this page click here.
Mineral and Locality Search
