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2017 Map of Sumdum A-4 NW

Name: 2017 Topographic Map of Sumdum A-4 NW
Creator: U.S. Geological Survey
Published: 2017
License: https://creativecommons.org/publicdomain/mark/1.0/

USGS Topo · Published 2017

About this map

Tongass National Forest blankets this corner of the Petersburg Borough, where the dramatic elevation changes of the Coast Mountains meet the complex waterways of Southeast Alaska. This maritime landscape is defined by the deep indentations of Farragut Bay, which branches into the North Arm and South Arm. These glacial-carved waters provide natural havens like Francis Anchorage, essential for navigation in a region where the shoreline is often steep and inaccessible.

Rising sharply from the coast, a series of prominent summits including Jamestown Peak, Saranac Peak, and Alaska Peak dominate the western portion of the map. The intricate coastline includes features like Sandborn Canal in the north and the solitary Black Rock and Bay Point Knoll to the south. This terrain reflects a wilderness largely untouched by permanent settlement, where the relationship between high alpine peaks and protected maritime reaches remains the primary geographic narrative.