General geologic map and sections of the Keweenawan and associated rocks in the lake superior copper district

Lignende værker

• Geologic map and strucrure sections of the rock creek oil field and adjoining areas, Wyoming
  af: Estados Unidos Geological Survey
  Udgivet: ([ca 1929])
• Geologic map of copper range from copper Falls to Gratiot, Michigan
  af: Estados Unidos Geological Survey
  Udgivet: ([19--])
• Longitudinal section of Lake Lode in plane of Lode
  af: Estados Unidos Geological Survey
  Udgivet: ([19--])
• Geologic sections of copper range diamond-drill holes, T. 53 N., R. 35 W.
  af: Estados Unidos Geological Survey
  Udgivet: ([19--])
• Geologic sections of Elm river mine (contact copper co.), T. 52 N., R. 36 W.
  af: Estados Unidos Geological Survey
  Udgivet: ([19--])