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USGS B 442

Placer mining in the Yukon-Tanana region

Bibliographic Reference

Ellsworth, C.E., 1910, Placer mining in the Yukon-Tanana region, in U.S. Geological Survey, Mineral resources of Alaska, report on progress of investigations in 1909: U.S. Geological Survey Bulletin 442, p. 230-245.

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