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1989 Map of Unalaska B-4
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1989 Map of Unalaska B-4

USGS Topo · Published 1989

About this map

Unalaska Island meets the Bering Sea along this intricate coastline, documented in the late 1980s via aerial photography. The map reveals a series of deep inlets and sharp headlands, from Makushin Bay in the north down to the sheltered waters of McIver Bight. This shoreline profile is defined by prominent geographical landmarks like Cape Starichkof, Kof Point, and Spray Cape, which guard the entrances to Skan Bay and Pumicestone Bay. Further south, Kashega Point marks the transition into the southern reaches of the quadrangle. These coastal features served as critical navigational waypoints in a landscape devoid of established roads or trails during this era of mapping.

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Map Details

Date Portrayed1989
Date Published1989
PublisherU.S. Geological Survey
Map TypeTopographic
Scale1:63,360
Physical Dimensions18 x 21.9 inches

Editions of this 1989 Unalaska B-4 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