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1949 Map of Petersburg B-4

Name: 1949 Topographic Map of Petersburg B-4
Creator: U.S. Geological Survey
Published: 1965
License: https://creativecommons.org/publicdomain/mark/1.0/

USGS Topo · Published 1965

About this map

The maritime convergence of Sumner Strait and Clarence Strait defines this mid-century survey of the Alexander Archipelago. Spanning portions of Kupreanof Island, Zarembo Island, and northern Prince of Wales Island, the map documents a landscape governed by the sea, where safety depends on the position of The Eye Opener Light, Vichnefski Rock Light, and Pt Colpoys Light. Inland, the terrain of the Tongass National Forest is carved by numbered drainages like Creek No 1 and Creek No 2 that feed into the large tidal basins of Salmon Bay and Red Bay.

Small pockets of human presence appear at Mitchell and near a Cabin on the northern coast, while the surrounding waters are dotted with hazards and navigational aids such as the Rookery Islands and Level Islands. This map captures a moment before modern infrastructure, where the region's geography is defined by deep bays like California Bay and the interconnected freshwater systems of Salmon Lake and Red Lake.