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2021 Map of Petersburg A-2 SW

Name: 2021 Topographic Map of Petersburg A-2 SW
Creator: U.S. Geological Survey
Published: 2021
License: https://creativecommons.org/publicdomain/mark/1.0/

USGS Topo · Published 2021

About this map

Tongass National Forest blankets this coastal landscape in the Alexander Archipelago, defined by a labyrinth of inlets and islands south of Petersburg. The maritime geography is anchored by Stanhope Island and its southern extension at Point Stanhope, where the land meets the open waters of Clarence Strait. Further inland, the narrow Mosman Inlet carves deep into the terrain, separating steep forested ridges and leading toward smaller interior water bodies like Streets Lake.

The map reveals a complex shoreline where narrow channels like Three Way Passage create intricate navigation routes between larger bodies of water like Rocky Bay. This survey captures the topographical isolation of the region, showing a landscape dominated by tidal coves such as Cooney Cove and landmarks like Marble Point. The lack of road infrastructure underscores the area's dependence on water access, a characteristic of Southeast Alaska's wilderness coast where maritime travel remains the primary means of movement between the forest and the sea.