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2021 Map of Sumdum C-4 SW, 2021 Print
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2021 Map of Sumdum C-4 SW

USGS Topo · Published 2021

About this map

The Tongass National Forest dominates this section of the Coast Mountains, where steep, ice-carved topography meets the intricate drainage systems of the Alaskan coast. High-elevation basins hold the Placer Lakes, which feed into a network of swift-moving watercourses including Sylvia Cr and Spruce Cr. These streams descend rapidly through dense forest cover toward the coast, illustrating the primitive, undeveloped character of the region as documented in the early twenty-first century. To the south, the Chuck River meanders through the lower elevations, marking a transition in the drainage pattern. The map's detail provides a precise view of the complex hydrology and forest boundaries that define this portion of the Alaska Panhandle, serving as a critical reference for understanding the land’s physical organization within the federal forest system.

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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 C-4 SW 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