USA – Northwest 1 (1973) (Map) This is a historical map of the northwestern United States, specifically published in 1973. The map covers an area that spans from Montana to Washington State and Oregon, with parts extending into Idaho, Wyoming, Nevada, Utah, California, and British Columbia in Canada. It provides geographical details such as cities, roads, rivers, and topographical features, offering a snapshot of the region’s landscape during that time. The map is noteworthy for its role in historical documentation and can serve as a valuable resource for researchers, historians, or anyone interested in understanding the geography of the northwestern United States in 1973.