Latitude: 33°16'37"N
Longitude: 113°57'56"W
A former Au-Ag placering area located in secs. 7 & 8, T.2S., R.16W. and secs. 1, 2, 11 & 13, T.2S., R.17W. The placer area is in a westward-trending wash just north of the King of Arizona Mine, ½ mile N of the Kofa Mine & NW of Kofa, 56 miles NE of Yuma.
Mineralization is relatively coarse placer gold in washes, a few feet to 70 feet above bedrock over an area of approximately 60 acres, within boulder and erosional fragment alluvium derived from weathering of gold veins in metamorphosed sediments. The gold is coarse and occurs near bedrock.
Workings are mostly small dry washing operations and several shallow pits. Total production may have been about 2,500 oz. gold with some silver, mostly extracted prior to 1900.
References
Jones, E.L., Jr. (1915), A Reconnaissance in the Kofa Mountains, Arizona, USGS Bull. 620: 164;
Thompson (1925), Arizona Mining Journal, Nov 1925: 9(12): 7;
Wilson, E.D. (1927), Arizona Gold placers, 2nd. ed. (revised), University of Arizona Bull. 124: 21.
Wilson, E.D. (1933), Geology and mineral deposits of southern Yuma County, Arizona, Arizona Bureau of Mines Bull. 134: 121.
Arizona Bureau of Mines Bull. 135 (1933), Arizona Gold placers & placering: 22-23.
Elsing, M.J. and Heineman, E.S. (1936) Arizona Metal Production, Arizona Bureau of Mines Bulletin 140: 104.
Butler, G.M. (1937) Arizona Gold Placers and Placering. Arizona Bureau of Mines Bull. 142: 22
Wilson, E.D. (1952), Arizona gold placers and placering (Fifth edition revised): Arizona Bureau of Mines Bull. 160: 23.
Wilson, E.D. (1961), Arizona gold placers, Part 1, in Gold placers and placering in Arizona, Arizona Bureau of Mines Bull. 168: 1-86.
Johnson, M.G. (1972), Placer gold deposits of Arizona, USGS Bull. 1355: 73-74.
Keith, Stanton B. (1978) State of Arizona Bureau of Geology and Mineral Technology, Geological Survey Branch Bull. 192, Index of Mining Properties in Yuma County, Arizona: 155 (Table 4).
Arizona Bureau of Mines file data.
MRDS database Dep. ID file #10102457, MRDS ID #M002506; and, Dep. ID #10283246, MAS ID #0040270251.
Mineral List
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