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Richards, R. W. (Ralph Webster), b. 1879, joint author
G4252.H9 1907 .U5
Geological Survey (U.S.) Bulletin ; 341
1:63360. 1 in. = 1 mile
Originals were scanned in color at 400 dpi on a Colortrac 5480e large format scanner and saved as TIFF files. JPEG derivatives were made from the original TIFFS using Photoshop.
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