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1948 Map of Petersburg C-5

Name: 1948 Topographic Map of Petersburg C-5
Creator: U.S. Geological Survey
Published: 1958
License: https://creativecommons.org/publicdomain/mark/1.0/

USGS Topo · Published 1958

About this map

Kupreanof Island dominates this mid-century topographic record, showing a landscape defined by dense drainages and complex coastal geography within the Tongass National Forest. The map is characterized by the intricate waterway of Keku Strait along its western edge and the southern inlet of Totem Bay. High-relief terrain is documented through precise contouring, following major freshwater systems like the Castle River and Tunehean Creek.

As part of a 1948 aerial photography effort that was not field checked, this document captures the wilderness state of the island before significant modern industrial development. The surveying highlights the importance of hydrography in this region, notably along Irish Creek and Keku Creek, providing an essential reference for understanding the natural drainage patterns of this portion of the Alaska panhandle prior to 1950s-era mapping revisions.