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Regional Aeronautical Chart, 2M

Aeronautical map of Montana and part of its surrounding region, showing cities, topographical features, radio frequency ranges and other various aeronautical symbols for flight training and navigation. Scale 1:1,000,000.
Date: October 7, 1943
Creator: U.S. Coast and Geodetic Survey
System: The Portal to Texas History

Plate I Geologic Map of the Crooks Map District, Freemont District, Wyoming

Geologic map of the Crooks Map District, Freemont District, Wyoming showing core drill holes prepared for a report by U.S. Atomic Energy Commission, Grand Junction Office.
Date: October 24, 1958
Creator: Bromley, Charles P.
System: The UNT Digital Library