1958 Map of Kenai D-5

About this map

Cook Inlet and the Trading Bay shoreline dominate this 1958 survey, updated in the early 1970s to reflect the emerging offshore energy industry. The map documents a cluster of early marine infrastructure, including Oil Platform Spark, Oil Platform King, and Oil Platform Dolly Varden positioned within the inlet. The mainland is characterized by a complex network of glacial rivers and wetlands, where the Mc Arthur River and Chakachatna River empty into the vast Tidal Flat. Human presence on the land is sparse, marked primarily by scattered Cabin sites and a single Landing Strip near the West Foreland. Rising above the wetlands, the Kustatan Ridge provides a distinct break in the low-lying terrain, offering a geographic anchor between the Kustatan River and the coast.