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1989 Map of Unimak A-3
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1989 Map of Unimak A-3

USGS Topo · Published 1989

About this map

Ugamak Island and the rugged shores of Tigalda Island anchor this maritime survey within the Aleutians East Borough. This subarctic landscape is defined by the convergence of the Bering Sea and the Pacific Ocean, separated by the treacherous waters of Unimak Pass and Ugamak Strait. Much of the land area shown, including smaller islets like Aiktak Island, Round Island, and Kaligagan Island, is protected under the Aleutian Islands Wilderness designation. The map illustrates a strictly natural topography devoid of roads or trails, where the land meets the sea at sheltered points like Ugamak Bay and Tigalda Bay. It provides a precise view of these isolated islands of the Fox Islands and Krenitzin Islands groups as they were documented in the late twentieth century.

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Map Details

Date Portrayed1989
Date Published1989
PublisherU.S. Geological Survey
Map TypeTopographic
Scale1:63,360
Physical Dimensions18 x 21.7 inches

Editions of this 1989 Unimak A-3 Map

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

Historical Maps of Aleutians East Through Time

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Source Details

SourceU.S. Geological Survey
CopyrightPublic Domain