The Canada / United States of America international boundary defines the southern edge of this remote wilderness area in the early 21st century. Situated at the northernmost reaches of Okanogan Co, Washington, the landscape is dominated by a complex network of unnamed mountain drainages and high-elevation terrain. This map captures a strictly natural landscape, emphasizing the hydrological patterns of the region's headwaters before they cross into British Columbia. The lack of named settlements or infrastructure highlights the area's character as a primitive corridor, where the primary geographical identifiers are the international border and the political division of the Pacific Northwest mountains.
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 · Ashnola Mtn
USGS Topo · 1:24,000
1969 · Tatoosh Buttes
USGS Topo · 1:24,000
1969 · Ashnola Pass
USGS Topo · 1:24,000
2002 · Ashnola Mountain
USGS Topo · 1:24,000
2002 · Tatoosh Buttes
USGS Topo · 1:24,000
2002 · Ashnola Pass
USGS Topo · 1:24,000