The international boundary of Canada defines the southern edge of this topographic study along the northern border of Washington State. This landscape is characterized by a dense network of mountain streams and drainage basins that feed southward from the Canadian wilderness toward the Colville National Forest region. The map captures the intricate hydrography of the high-country terrain, illustrating the natural flow of water across the border through a series of unnamed valleys and ridges. Without the presence of established roads or settlements in this specific 2020 survey area, the focus remains on the raw physical geography and the precisely surveyed geopolitical line that separates the two nations.
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This is the sole edition of this map. No revisions or reprints were ever made.
1929 · Colville
USGS Topo · 1:125,000
1933 · Colville
USGS Topo · 1:125,000
1934 · Metaline
USGS Topo · 1:125,000
1942 · Metaline
USGS Topo · 1:125,000
1952 · Leadpoint
USGS Topo · 1:24,000
1958 · Sandpoint
USGS Topo · 1:250,000
1963 · Sandpoint
USGS Topo · 1:250,000
1967 · Boundary Dam
USGS Topo · 1:24,000
1967 · Abercrombie Mtn
USGS Topo · 1:24,000
1984 · Colville
USGS Topo · 1:100,000