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2021 Map of Sumdum D-4 SE, 2021 Print
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2021 Map of Sumdum D-4 SE

USGS Topo · Published 2021

About this map

The South Sawyer Glacier dominates the northwestern portion of this 2021 topographic survey, where its icy tongue pushes through the Coast Mountains. This high-altitude landscape is almost entirely defined by the boundaries of the Tongass National Forest, illustrating the sheer scale of federal land management in the Alaskan panhandle. The terrain is a complex arrangement of sharp ridgelines and steep glacial valleys, where contour lines crowd closely together to indicate extreme vertical relief. This particular sheet captures the glacial environment at a specific modern moment, recording the extent of the ice and the surrounding topography within the surveyed townships of t46s r76e and t47s r76e.

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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 Sumdum D-4 SE 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