San Luis Wash gold placers (San Luis Wash placers), San Luis Wash, San Luis Mts, Arivaca District (Las Guijas District), Las Guijas & San Luis Mts, Pima Co., Arizona, USA
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Keith, Stanton B. (1974), Arizona Bureau of Geology & Mineral Technology, Geological Survey Branch Bull. 189, Index of Mining Properties in Pima County, Arizona: 106 (Table 4).
Arizona Bureau of Mines file data.
MRDS database Dep. ID file #10026918, MRDS ID #M001057; and, Dep. ID #10258885, MAS ID #0040190384.
A former small Au-Ag surface placer deposit and mine area located in secs. 20, 27, 28, 29, 34 & 35, T.21S., R.9E., 4 mile SW to 7 miles WNW of Arivaca.
Mineralization is generally coarse and angular gold particles in spotty placer deposits of gravels and alluvium on benches between washes on a dissected pediment cut on Cretaceous sedimentary and volcanic beds. Few boulders but considerable clay.
Workings include both wet and dry placer operations worked sporadically, but mainly in the 1930's. Some 50 oz. of gold were recovered.
1 entry listed. 1 valid mineral.
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