‡Ref.: The Resources of Arizona - A Manual of Reliable Information Concerning the Territory, compiled by Patrick Hamilton (1881), Scottsdale, AZ: 76; Wilson, E.D., et al (1934), AZ Bur Mines Bull. 137: 165; AZ Bur. Mines Bull. 180: 106; AZ Bur. Geol. Min. Tech. clippings file; AZ Bur. Geol. Min. Tech. - US Bur. Mines file data; AZ Dept. Min. Resources (ADMR) file data.; DeWitt, Ed (1981), unpublished reconnaissance mapping data; USGS Humboldt Mountain map; Bur. Land Mgmt. plat 2916; AZ Dept. Min. Resources (ADMR) Rackensack Mine file; Moore, R.T., AZ Bur. Mines Bull. 180: 106; MRDS files #10046343 & 10234923.
A former underground Au-Ag-Cu-Be-Mo-Pb mine located in Rackensack Gulch, about 4 miles (or 2 miles) upstream from Cave Creek highway bridge. Owned by L.E. Hewins (1934). Produced 1915 to 1951.
Mineralization is a 2 foot wide vein deposit. Ore is allegedly in a dike. Structure locally is a granitic intrusion at Gold Hill, with related NE fracturing. NE-trending fractures and dikes, probably Tertiary in age.
Workings include a 50 foot deep shaft with a 60 foot long tunnel (1881). Produced more than $1,000 of Au (1931-1934 timeframe)(period values).
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Map Reference: 33°54'2"N , 111°51'3"W
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Mineral List:1 entry listed. 1 valid mineral.
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