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1951 Map of Petersburg B-3

Name: 1951 Topographic Map of Petersburg B-3
Creator: U.S. Geological Survey
Published: 1954
License: https://creativecommons.org/publicdomain/mark/1.0/

USGS Topo · Published 1954

About this map

Zarembo Island dominates this mid-century survey of the Alexander Archipelago, showing the island's complex topography within the Tongass National Forest. The map details the vital maritime corridors of the Sumner Strait to the north and Clarence Strait to the southwest, which served as essential waterways for the region's navigation. Sheltered anchorages like Baht Harbor and St John Harbor are clearly marked, alongside coastal features such as Little Baht Hbr and Meter Bight.

A network of surveyed points and maritime landmarks, including Zarembo North Base and Craig Point, provides a framework for the coastal geography. Smaller landmasses including Mitkof I at the northern edge and Bushy Island to the south illustrate the intricate archipelago landscape. The mapping reflects the era's reliance on aerial photography and hydrographic charts to document these remote Alaskan islands.