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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
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Preliminary Report on the Copper-Bearing Rocks of Douglas County, Wisconsin
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Geological Map of Part of the St. Croix Copper Range, in Douglas Co., Wis. [plate 7]
1900
Map: Scale 1 in = 4 miles
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Geological Map of the Western Part of the Douglas Copper Range, in Douglas Co., Wis. [plate 8]
1900
Map: Scale 1 in = 4 miles
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Geological Map of the Eastern Part of the Douglas Copper Range, in Douglas Co., Wis. [plate 9]
1900
Map: Scale 1 in = 4 miles
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Geological Map of Part of the Minong Copper Range in Washburn, Douglas and Bayfield Counties, Wis. [plate 13]
1900
Map: Scale 1 in = 4 miles