Moss Mine, Moss vein, Oatman, San Francisco District, Oatman District (San Francisco District; Union Pass District), Black Mts, Mohave Co., Arizona, USA
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A former underground gold mine located in south-central sec. 19, T.20N., R.20W., 7 miles NW of Oatman and 2 miles North of Silver Creek in the old San Francisco District. This was the leading mine of the district.
Mineralization is an immense gold ledge, nearly 40 feet wide. The vein strikes N.78ºW. and dips 70ºS. It occurs in the Moss Quartz Monzonite-porphyry. The lode is from 20 to more than 100 feet wide at the West end. It is traceable for more than 1 mile on the surface. The vein filling consists of fine-grained white quartz asnd calcite with stringers of colorless to pale-green fluorite, The largest oreshoot consisted offree gold in iron-stained quartz but only to 65 feet deep.
Workings include shafts at 230 feet and 98 feet deep, respectively (1881), plus 1,700 feet of levels, drifts, etc.
11 entries listed. 10 valid minerals.
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