Data and Resources

• B006-1901

  Preliminary Report on the Copper-Bearing Rocks of Douglas County, Wisconsin (2nd edition)

  Grant, U.S.;

  1900

  Report: 83 p.

  Download
• B006-1901-plate01

  Geological Map of Douglas County, Wisconsin [plate 1]

  Grant, U.S.;

  1900

  Map: Scale 1 in = 4 miles

  Download
• B006-1901-plate07

  Geological Map of Part of the St. Croix Copper Range, in Douglas Co., Wis. [plate 7]

  Grant, U.S.;

  1900

  Map: Scale 1 in = 4 miles

  Download
• B006-1901-plate08

  Geological Map of the Western Part of the Douglas Copper Range, in Douglas Co., Wis. [plate 8]

  Grant, U.S.;

  1900

  Map: Scale 1 in = 4 miles

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• B006-1901-plate09

  Geological Map of the Eastern Part of the Douglas Copper Range, in Douglas Co., Wis. [plate 9]

  Grant, U.S.;

  1900

  Map: Scale 1 in = 4 miles

  Download
• B006-1901-plate13

  Geological Map of Part of the Minong Copper Range in Washburn, Douglas and Bayfield Counties, Wis. [plate 13]

  Grant, U.S.;

  1900

  Map: Scale 1 in = 4 miles

  Download