
Avatanak Island and its surrounding Aleutian waters are the focal point of this 2020 topographic survey produced by the U.S. Geological Survey. The landscape is defined by its maritime geography, situated between the Avatanak Strait to the north and the open Pacific Ocean to the south. The island's eastern shoreline is marked by the indentation of Chimney Cove, while its northern coast is guarded by the prominent landmark of Basalt Rock. The map illustrates the island's isolation within the eastern Aleutians, showing the narrow passage of Rootok Strait to the west. This survey provides a precise record of coastal topography and elevations, capturing the natural features of this maritime environment in the Aleutians East Borough.
10 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.
1951 · Unimak
USGS Topo · 1:250,000
1958 · Unimak
USGS Topo · 1:250,000
1989 · Unimak A-5
USGS Topo · 1:63,360
1989 · Unimak A-4
USGS Topo · 1:63,360
2020 · Unimak A-4 NW
USGS Topo · 1:25,000
2020 · Unimak A-5 SW
USGS Topo · 1:25,000
2020 · Unimak A-5 NE
USGS Topo · 1:25,000
2020 · Unimak A-4 SW
USGS Topo · 1:25,000
2020 · Unimak A-5 NW
USGS Topo · 1:25,000