Pyramid Mine (Pyramid group), Union Pass District (Katherine District), Oatman District (San Francisco District; Union Pass District), Black Mts, Mohave Co., Arizona, USA
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A former surface and underground Au-Ag mine located near the Colorado River, in the old Union Pass District area. Discovered 1862 and closed 1941.
Geologic setting is low hills comprised of granite. The vein consists of a large number of small stringers in reddish granite that strikes N.65ºE. and dips vertically.
Workings include a 70 foot deep shaft and a number of small pits.
3 entries listed. 3 valid minerals.
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