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1958 Map of Kenai D-5

Name: 1958 Topographic Map of Kenai D-5
Creator: U.S. Geological Survey
Published: 1973
License: https://creativecommons.org/publicdomain/mark/1.0/

USGS Topo · Published 1973

About this map

Industrial expansion into the waters of Cook Inlet defines this mid-century period on the Kenai Peninsula, marked by a cluster of offshore oil rigs. Deep-water structures such as Oil Platform Spark, Oil Platform King, and Oil Platform Dolly Varden are situated within Trading Bay, signaling the era's focus on marine resource extraction. The shoreline is characterized by extensive Tidal Flats and complex river deltas where the Mc Arthur River, Chakachatna River, and Middle River meet the sea.

Along the coast, a remote infrastructure of isolated Cabins and a Landing Strip near West Foreland suggests a landscape accessed primarily by air and water. The survey captures the topographic transition from the silty lowlands of the Flats to the rising elevations of Kustatan Ridge. This record preserves a specific moment in the development of Alaska's maritime industry before later environmental and technological shifts altered the peninsula's coastal profile.