Endicott Arm carves through the coastal wilderness of the Tongass National Forest in this 2017 topographic study. The landscape is defined by the steep transition from the deep waters of the glacial fjord to the high ridgelines that frame the inlet. Isolated landforms like Sumdum Island and the Bushy Islands sit within the arm, providing navigational landmarks for the maritime traffic that characterizes this part of the Alaska Panhandle. The absence of roads or permanent settlements emphasizes the protected nature of the national forest and the reliance on water-based access. On the southwestern shore, the indentation of Sanford Cove and the protrusion of Rock Point mark significant changes in the coastline's orientation, reflecting the scouring action of past glacial movements across the Unorganized Borough.
12 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.
1948 · Sumdum C-5
USGS Topo · 1:63,360
1948 · Sumdum D-5
USGS Topo · 1:63,360
1951 · Sumdum C-5
USGS Topo · 1:63,360
1952 · Sumdum
USGS Topo · 1:250,000
1955 · Sumdum D-5
USGS Topo · 1:63,360
1960 · Sumdum D-4
USGS Topo · 1:63,360
1961 · Sumdum C-4
USGS Topo · 1:63,360
1961 · Sumdum
USGS Topo · 1:250,000
1994 · Sumdum D-5
USGS Topo · 1:63,360
1994 · Sumdum D-4
USGS Topo · 1:63,360