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Map of Oregon, Washington, Idaho, and part of Montana.
Map shows counties, roads, cities, towns, existing and proposed railroads, mining activity, mineral resources, military outposts, notable physical features, and Yellowstone National Park. Relief shown by hachures. Scale [ca. 1:4,500,000].
Date:
1870
Creator:
Mitchell, S. Augustus, Jr. (Samuel Augustus)
System:
The Portal to Texas History