The international boundary between the United States and Canada defines the southern portion of this landscape, where the northernmost reaches of the Okanogan National Forest meet the border. This map represents a high-altitude wilderness area at the edge of Washington state, where the geography is characterized by complex hydrography and varying elevations rather than human settlements or industrial development. The drainage patterns and terrain provide a detailed look at the watershed systems that cross between the two nations. As part of a larger ecological system, the area serves as a critical buffer of protected land, illustrating the transition from managed forest in the United States to the rugged terrain of British Columbia.
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This is the sole edition of this map. No revisions or reprints were ever made.
1902 · Osoyoos
USGS Topo · 1:125,000
1904 · Osoyoos
USGS Topo · 1:125,000
1904 · Republic
USGS Topo · 1:125,000
1951 · Bodie Mountain
USGS Topo · 1:62,500
1954 · Okanogan
USGS Topo · 1:250,000
1957 · Mt. Bonaparte
USGS Topo · 1:62,500
1958 · Okanogan
USGS Topo · 1:250,000
1958 · Bodie Mtn
USGS Topo · 1:62,500
1984 · Oroville
USGS Topo · 1:100,000
1984 · Republic
USGS Topo · 1:100,000