
Tracy Arm-Fords Terror Wilderness and the Tongass National Forest meet in this high-altitude landscape along the international border between Alaska and British Columbia. Dominated by extreme topographic relief, the area is defined by the sharp rise toward Boundary Peak 73, situated directly on the boundary line between the Canada United States of America. This terrain reflects the complex glacial geography of the Southeast Alaska panhandle, where steep contours indicate a vertical environment of ice and rock rather than human settlement. The absence of roads or structures within this 2024 survey emphasizes the remote character of these protected lands, where the primary features are the jurisdictional boundaries and the formidable peaks that dictate them.
8 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.
1952 · Sumdum
USGS Topo · 1:250,000
1960 · Sumdum A-1
USGS Topo · 1:63,360
1961 · Sumdum A-2
USGS Topo · 1:63,360
1961 · Sumdum B-2
USGS Topo · 1:63,360
1961 · Sumdum
USGS Topo · 1:250,000
2000 · Sumdum A-2
USGS Topo · 1:63,360
2000 · Sumdum B-2
USGS Topo · 1:63,360
2018 · Sumdum B-2 SW
USGS Topo · 1:25,000
2018 · Sumdum A-1 NW
USGS Topo · 1:25,000
2018 · Sumdum A-2 NE
USGS Topo · 1:25,000