Open-cut worked by tramming to bedrock sluices. Ophir district, Yukon region, Alaska. 1904.
Dates
Date Taken
1904
Summary
Open-cut worked by tramming to bedrock sluices. Ophir district, Yukon region, Alaska. September 1904. Plate 27-B in U.S. Geological Survey. Bulletin 263. 1905.
Summary
Open-cut worked by tramming to bedrock sluices. Ophir district, Yukon region, Alaska. September 1904. Plate 27-B in U.S. Geological Survey. Bulletin 263. 1905.
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