Brecciated vein filling, North Star mine. Nevada County, California. 1931.
Dates
Date Taken
1931
Summary
Brecciated vein filling, North Star mine, A vein 4,000-foot level: Underground photograph of quartz veins. Nevada County, California. 1931. Plate 9-C, U.S.Geological Survey Professional paper 194. 1940.
Summary
Brecciated vein filling, North Star mine, A vein 4,000-foot level: Underground photograph of quartz veins. Nevada County, California. 1931. Plate 9-C, U.S.Geological Survey Professional paper 194. 1940.
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