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Map of that part of Washington Territory lying west of the Cascade Mounts to accompany the report of Surveyor General, 1857.
Map shows Washington Territory township grid, existing towns, Indian reservations, trails, roads, mountain passes, railroads, and mills. Includes explanation. Relief shown by hachures and spot heights. Scale [1:1,140,480].
Date:
1857
Creator:
United States Surveyor General.
System:
The Portal to Texas History