The Canada / United States of America international boundary defines the landscape of this 2014 survey. This section of the border connects the northern edge of Okanogan Co in Washington state with the southern reaches of British Columbia. The map provides a high-resolution look at the drainage patterns and tributary networks that flow across the frontier, unhindered by political lines. While the terrain is densely marked by these water systems, the absence of named peaks or settlements underscores the isolated, natural character of this transborder region during the early 21st century.
3 named features on this map. Tap any name to fly to it.
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This is the sole edition of this map. No revisions or reprints were ever made.
1920 · Slate Pass
USGS Topo · 1:125,000
1955 · Concrete
USGS Topo · 1:250,000
1958 · Concrete
USGS Topo · 1:250,000
1962 · Concrete
USGS Topo · 1:250,000
1969 · Frosty Creek
USGS Topo · 1:24,000
1969 · Tatoosh Buttes
USGS Topo · 1:24,000
2002 · Tatoosh Buttes
USGS Topo · 1:24,000
2002 · Frosty Creek
USGS Topo · 1:24,000
2002 · Castle Peak
USGS Topo · 1:24,000
2011 · Tatoosh Buttes
USGS Topo · 1:24,000