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Grand Central Mine (Grand Central claim), Aravaipa, Santa Teresa Mts, Aravaipa District, Graham Co., Arizona, USA

Latitude: 32°58'32"N
Longitude: 110°20'16"W
A former underground Pb-Zn-Ag mine located in sec. 30, T5S, R20E, 1½ miles NE of Aravaipa and 1000 feet SE of the Head Center Mine. First produced 1925. Owned by the Athletic Mining Co. Operated by the Grand Central Mining Co.

Mineralization is hosted in Horquilla Limestone and shale. An associated rock unit is the Copper Creek Granodiorite. An altered zone contains mineralization. Some copper stain evident.

Area structures include block faulting trending NNW. Regional trends: minor Pre-Cretaceous E- and NE-trending folds and major Post-Cretaceous NNW-trending faults.

Workings include an inclined shaft sunk on an altered zone. Production was 3,500,000 pounds of Pb and $20,000 (period values) of Ag (1926-1930). Nothing known of this mine subsequent to 1930.


Ross, C.P. (1925a), Geology and ore deposits of the Aravaipa and Stanley mining districts, Graham County, Arizona, USGS Bull. 763.

Elsing and Heineman (1936) Arizona Metal Production. Arizona Bureau of Mines Bulletin 140: 93.

Denton, T.C. (1947), Aravaipa lead-zinc deposits, Graham County, Arizona, U.S. Bureau of Mines Report of Investigation 4007: Figure 3, 4, 5.

Galbraith, F.W. (1947), Minerals of Arizona, Arizona Bureau of Mines Bull. 153: 17.

Wilson, E.D., et al (1950), Arizona zinc & lead deposits, Part I, Arizona Bureau of Mines Bull. 156;

Simons, F.S. & E. Munson (1963), Johannsenite from the Aravaipa mining district, Arizona, American Mineralogist: 48: 1154-1158.

Simons, F.S. (1964), Geology of the Klondyke quadrangle, Graham and Pinal Counties, Arizona, USGS PP 461.

U.S. Bureau of Land Management Mining Claims Lead File #86176 (Jul, 1980).

Wilson, W.E. (1988), The Iron Cap mine, Mineralogical Record: 19: 81-87.

Anthony, J.W., et al (1995), Mineralogy of Arizona, 3rd. ed.: 228.

USGS Cobre Grande Quadrangle map.

Arizona Department of Mineral Resources FAR Mining Enterprises file.

Arizona Department of Mineral Resources Grand Reef file.

Arizona Department of Mineral Resources Brushy group file.

Arizona Department of Mineral Resources U file.

MRDS database Dep. ID #10039444, MRDS ID #M050087; and Dep. ID #10186503, MAS ID #0040090146.

Mineral List

'Copper Stain'

2 entries listed. 1 valid mineral.

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