1927. Geological Survey (U.S.). Alternate title: Alaska, map A.; Relief shown by spot heights. 42 x 60 centimeters Scale 1:5,000,000 approximately 80 miles to 1 inch General Map C... Dept. of the Interior, U.S. Geological Survey (Washington, D.C).
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1927. Kroll Map Company, inc. Relief shown by hachures and spot heights.; Shows mineral resources, steamship routes, glaciers, cable lines, etc.; Includes inset of Aleutian Isla... Kroll Map Co (Seattle, Wash), 1927.