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1948 Map of Sumdum A-6, 1957 Print
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1948 Map of Sumdum A-6

USGS Topo · Published 1957

About this map

Kupreanof Island dominates the southern half of this mid-century survey, its heavily contoured landscape rising to the peak of Turn Mountain. Located within the Tongass National Forest, the region is characterized by a complex coastline and deep glacial waterways. To the north, Frederick Sound opens into broad reaches of water, punctuated only by the isolated Turnabout I, which is marked with a Light to aid maritime navigation through these northern passages.

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Map Details

Date Portrayed1948
Date Published1957
PublisherU.S. Geological Survey
Map TypeTopographic
Scale1:63,360
Physical Dimensions17 x 20.8 inches

Editions of this 1948 Sumdum A-6 Map

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Source Details

SourceU.S. Geological Survey
CopyrightPublic Domain