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1954 Map of Iliamna C-4

Name: 1954 Topographic Map of Iliamna C-4
Creator: U.S. Geological Survey
Published: 1965
License: https://creativecommons.org/publicdomain/mark/1.0/

USGS Topo · Published 1965

About this map

Pedro Bay and Pile Bay indent the northeastern shoreline of Iliamna Lake in this mid-century topographical record. The landscape is dominated by the water systems that define the region, including the Copper River and its connection to Lower Copper Lake and Upper Copper Lake. A cluster of significant islands, notably Porcupine Island, Flat Island, and Triangle Island, are charted in detail across the lake's surface.

Mapping by the Army Map Service utilized aerial photography from 1955 and 1957 to document this roadless wilderness. The southern portion of the sheet is anchored by the northern reaches of Kakhonak Lake. The lack of man-made infrastructure highlights the reliance on natural features for navigation, such as Squirrel Point and the drainage of Tommy Creek, during an era when the Bureau of Land Management was still predetermining unsurveyed land lines for the territory.