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Published in April 1960, the Northwestern United States map features Washington, Oregon, Idaho, Montana, and Wyoming. This is one map in a series of six sectional maps of the United States published between 1958 and 1961. Intercontinental ballistic missile bases make it evident that this map was printed during a particularly strained period of the Cold War. The 1960 Northeastern United States map features:
• State capitals, cities, and towns
• Railroads, roads, toll roads, freeways, and places with scheduled air service
• Mountains, rivers, lakes, intermittent lakes, dry salt lakes, deserts, lava, and glaciers
• Subtle mountain relief and ocean bathymetry
• Intercontinental ballistic missile bases
• Elevations in feet and soundings in fathoms
Coverage Area: Washington, Oregon, Idaho, Montana, Wyoming, southern British Columbia, southern Alberta, southern Saskatchewan
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