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1948 Map of Petersburg B-3

Name: 1948 Topographic Map of Petersburg B-3
Creator: U.S. Geological Survey
Published: 1972
License: https://creativecommons.org/publicdomain/mark/1.0/

USGS Topo · Published 1972

About this map

Zarembo Island dominates this mid-century survey, its mountainous interior rising sharply between the waterways of Southeast Alaska. Part of the Tongass National Forest, the island is surrounded by the treacherous tidal currents of Sumner Strait to the north and Clarence Strait to the southwest. The coastline is marked by small, sheltered anchorages such as St John Harbor and Baht Harbor, which historically served as vital refuges for the region's maritime traffic.

Insights into early coastal infrastructure and natural resources are evident in the placement of Zarembo Spring and landmarks like Pt Howe on Mitkof I. The topographic detail shows a land defined by its isolation, where transportation was strictly water-borne through passages like Snow Passage. This map captures the uninhabited character of the Alexander Archipelago before modern development, preserving the original nomenclature of points like Craig Point and islands such as Bushy Island.