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2021 Map of Unalaska B-4 NE, 2021 Print
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2021 Map of Unalaska B-4 NE

USGS Topo · Published 2021

About this map

Makushin Bay and Skan Bay dominate this coastal survey of the Unalaska island chain, where the eastern shoreline meets the vast Bering Sea. The terrain is defined by dramatic coastal features like the high-relief Cape Starichkof and the prominent Kof Point. The presence of the Bogoslof Basin suggests complex seafloor topography just off the coast, while the interior landscape is marked by steep elevation rises moving inland from Skan Point. This map provides a clear record of the uninhabited maritime environment, focusing entirely on the natural geography and nautical landmarks that define this portion of the Aleutian Islands.

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Map Details

Date Portrayed2021
Date Published2021
PublisherU.S. Geological Survey
Map TypeTopographic
Scale1:25,000
Physical Dimensions24 x 29 inches

Editions of this 2021 Unalaska B-4 NE Map

This is the sole edition of this map. No revisions or reprints were ever made.

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Source Details

SourceU.S. Geological Survey
CopyrightPublic Domain