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1951 Map of Petersburg A-6

Name: 1951 Topographic Map of Petersburg A-6
Creator: U.S. Geological Survey
Published: 1975
License: https://creativecommons.org/publicdomain/mark/1.0/

USGS Topo · Published 1975

About this map

Sumner Strait dominates this 1951 survey, separating the southeastern coast of Kuiu Island from the northwestern edge of Kosciusko Island. The maritime landscape is defined by intricate shorelines and hazards mapped from aerial photography, including the Barrier Islands, Calder Rks, and the shallow waters of Louise Cove. Because the terrain is situated within the Tongass National Forest, the map focuses on the natural geography and coastal navigation markers rather than industrial development.

Several specific coastal landmarks provide reference points for local history and maritime research, such as Pt St Albans, Ruins Pt, and Pt Amelius. Interior features are limited to drainage systems like Trout Creek and Charley Creek, which flow through the dense forest towards the strait. This sheet is a critical record of the Alexander Archipelago's geography as it was documented in the mid-20th century before later modern revisions.