2021 Map of Petersburg C-6 SW, 2021 Print
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2021 Map of Petersburg C-6 SW

USGS Topo · Published 2021

About this map

Tongass National Forest defines the coastal character of this Kuiu Island landscape, where intricate shorelines and tidal inlets dominate the geography. The map tracks the vital transportation corridors of the region, including the Kuiu Mainline and the Threemile Arm Portage Trl, which connect deep-water access points like Seclusion Harbor and No Name Bay. This 2021 survey illustrates the reliance on maritime and forest service infrastructure in the Alexander Archipelago, showing how natural features like Eagle Island and the reaches of Upper 3-Mile Arm frame the navigable waterways essential for local transit and timber management.


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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 Petersburg C-6 SW Map

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


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Source Details

CopyrightPublic Domain