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Portal of the German Bar mine, Nevada County, California. circa. 1967.

Dates

Date Taken
1967

Summary

Album caption: Portal of the German Bar mine, located between Snow point and the Middle Yuba River, Slate and greenstone of the Calaveras Formation are intruded by gold-bearing(?) quartz, a rock type common in prevolcanic gravel, and the source for much of the gold contained in gravel. Nevada County, California. circa. 1967. Published as figure 3 in U. S. Geological Survey. Professional paper 772. 1974.

Contacts

Data Owner :
U.S. Geological Survey
Photographer :
Yeend, Warren E

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ywe00001.jpg thumbnail 576.82 KB image/jpeg
ywe00001.tif 6.21 MB image/geotiff

Material Request Instructions

Available in the U.S. Geological Survey Denver Library Photographic Collection, Yeend, Warren E. Collection

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