REFINE
Browse All : Images by Peale, A.C. of Wyoming and Idaho from 1877
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Author
[Hayden, F.V., U.S. Geological and Geographical Survey of the Territories]
Note
Full color geologic map. Shows geologic formations and sedimentary chart. Relief by shown by contours and spot heights. " Contour interval 200 feet". "56" on the Lower right margin. To accompany the Survey's 12th annual report (1878).
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