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USGS MF 420

Metallic mineral resources map of the Ketchikan Quadrangle, Alaska

Bibliographic Reference

Cobb, E.H., comp., 1972, Metallic mineral resources map of the Ketchikan Quadrangle, Alaska: U.S. Geological Survey Miscellaneous Field Studies Map 420, 1 sheet, scale 1:250,000.

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Keywords

Metals

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