The international border between Canada and the United States of America defines the southern portion of this landscape where the province of British Columbia meets Washington state. Situated within Okanogan Co, the region is characterized by a significant water body and its surrounding drainage systems. The survey documents the hydrography and primary transit corridors as they existed in the early twenty-first century, providing a clear record of the northernmost edge of the American Pacific Northwest. Because this map focuses on the interface of two nations, it offers a specific view of how the landscape is divided by the international boundary line north of the Oroville area.
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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
1906 · Chopaka
USGS Topo · 1:125,000
1954 · Okanogan
USGS Topo · 1:250,000
1956 · Loomis
USGS Topo · 1:62,500
1957 · Oroville
USGS Topo · 1:62,500
1958 · Okanogan
USGS Topo · 1:250,000
1975 · Oroville NW
USGS Topo · 1:24,000
1981 · Mount Hull
USGS Topo · 1:24,000
1982 · Oroville
USGS Topo · 1:24,000