The Canada/United States of America border defines the character of this 2017 survey, representing the high-altitude terrain along the international boundary between British Columbia and Washington State. Produced by the U.S. Geological Survey using modern imagery and national datasets, the map illustrates the precise geography of this borderland area. While the landscape is sparsely labeled, the map provides a technical view of the drainage patterns and topography north of the 49th parallel. It serves as a vital record of the geopolitical boundary as it exists in the early 21st century, offering researchers a clean perspective on the undeveloped lands that straddle the line between the two nations.
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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
1954 · Okanogan
USGS Topo · 1:250,000
1957 · Mt. Bonaparte
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
1984 · Oroville
USGS Topo · 1:100,000