Regional aeromagnetic map of western Lake Superior and adjacent parts of Minnesota Michigan and Wisconsin /

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Bibliographic Details
Author / Creator:Kirby, John R., Jr.
Imprint:Washington, D.C. : U.S. Geological Survey, 1966.
Description:1 map ; 80 x 69 cm.
Language:English
Series:Geophysical investigations GP-556
Geophysical investigations (Geological Survey (U.S.)) GP-556
Subject:
Cartographic data:Scale 1:250,000.
Format: Map U.S. Federal Government Document Print
Local Note:Stored in vertical file.
URL for this record:http://pi.lib.uchicago.edu/1001/cat/bib/2767772
Hidden Bibliographic Details
Other authors / contributors:Petty, A. J. (Andrew Jackson)
Geological Survey (U.S.)
Notes:Relief indicated by spot heights.
"Aeromagnetic survey flown at 1000 feet above surface, 1961."
Inset: Index map...

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