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1951 Map of Petersburg B-6

Name: 1951 Topographic Map of Petersburg B-6
Creator: U.S. Geological Survey
Published: 1981
License: https://creativecommons.org/publicdomain/mark/1.0/

USGS Topo · Published 1981

About this map

Kuiu Island dominates this 1950s coastal survey, showcasing the intricate shoreline of the Tongass National Forest along the Alexander Archipelago. The maritime landscape is defined by the deep inlet of Port Beauclerc and the prominent Beauclerc Peak, providing a snapshot of the region's topography before significant modern development. Navigational hazards and coastal features are meticulously charted, including the scattered rocks of Mariposa Reef and Calder Rocks in the surrounding straits.

Conclusion Island and Sumner Island sit within the complex waterway network of Keku Strait and Sumner Strait. These passages were essential corridors for the Alaskan fishing and timber industries of the era. The map details smaller landforms like Strait Island and Labouchere Island, alongside several cabins tucked into protected coves like Alvin Bay, reflecting the isolated, water-dependent nature of life in the Alaskan panhandle at mid-century.