Geology of the Simcoe Mountains volcanic area, Washington [cartographic material] / by Richard A. Sheppard. Raster Massachusetts Institute of Technology Public content

Description
Relief shown by contours and spot heights. Includes summary, index map and 2 geologic cross sections. "Geology mapped 1958-59." "Base from Army Map Service topographic quadrangles, Yakima and The Dalles, 1:250,000."
Publisher
Washington Dept. of Conservation, Division of Mines and Geology
Year
1967-01-01T00:00:00Z
Held by
MIT
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