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1951 Map of Unimak, 1952 Print
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1951 Map of Unimak

USGS Topo · Published 1952

About this map

The volcanic peaks of the Tugamak Range and the massive Fisher Caldera dominate this Aleutian landscape, where high-altitude ice meets the rough waters of the Bering Sea. Published shortly after World War II, the sheet illustrates the critical maritime infrastructure and geological features of the island chain, notably the Cape Sarichef Lighthouse and the strategic outpost at Scotch Cap. Most of the land falls within the Aleutian Islands National Wildlife Refuge, preserving a wilderness defined by active geothermal landmarks like Pogromni Volcano and Westdahl Peak. To the southwest, the survey details the complex coastlines and smaller isles of the Krenitzin Islands, including the deep-water access of Akutan Harbor. This era of mapping relied on 1942 trimetrogon photography, providing a clear record of the lagoons, such as Peterson Lagoon, and the remote cabins that served as the few human structures in this maritime environment.

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Map Details

Date Portrayed1951
Date Published1952
PublisherU.S. Geological Survey
Map TypeTopographic
Scale1:250,000
Physical Dimensions22.5 x 22.7 inches

Editions of this 1951 Unimak Map

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Source Details

SourceU.S. Geological Survey
CopyrightPublic Domain