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Copper Bearing Formations of Bayfield and Southeast Douglas Counties
Open-file report; contains unpublished data that has not yet been peer-reviewed.-
Copper Bearing Formations of Bayfield and Southeast Douglas Counties
1928
Map: 38.3 in x 22.1 in, scale 1 in = 1 mile
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Mineral Land Classification, Showing Indications of Iron Formation in Parts of Ashland, Bayfield, Washburn, Sawyer, Price, Oneida, Forest, Rusk, Barron, and Chippewa Counties
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Map Showing Geology of Part of Northwestern Wisconsin Including Parts of Ashland, Bayfield, Washburn, Sawyer, Price, Oneida, Barron, Rusk, and Chippewa Counties [plate 1]
1915
Map: 20.7 in x 13.5 in, scale 1 in = 6 miles