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2021 Map of Rat Islands D-1 SW, 2021 Print
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2021 Map of Rat Islands D-1 SW

USGS Topo · Published 2021

About this map

Semisopochnoi Island, part of the western Rat Islands in the larger Aleutian Islands chain, marks the primary landmass in this maritime-heavy survey. The topography focus is concentrated on the northernmost tip of the volcanic island, specifically around Northeast Point, where the land abruptly meets the Bering Sea. The map details the elevation contours and coastal boundaries for this isolated terrain, providing a look at the natural coastline before it descends into the open water. Navigational and administrative markers include the township designation t94s r221w, illustrating how the Public Land Survey System extends even to these distant Alaskan outposts.

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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 Rat Islands D-1 SW 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