1954 Map of Iliamna C-4

About this map

Pedro Bay and Intricate Bay anchor this 1950s look at the northern reaches of Iliamna Lake. The landscape is defined by its complex hydrologic network, where the Copper River drains southward from a series of highland water bodies including Upper Copper Lake and Lower Copper Lake. To the north, the waters of Pile Bay and the larger lake are dotted with landforms such as Porcupine Island, Triangle Island, and Flat Island, while Squirrel Point marks a prominent turn in the shoreline. The topography reveals an intricate system of drainages, including Tommy Creek, and smaller inland features like Fog Lake. This survey captures the region as it existed before modern development, noting land lines that were predetermined by the Bureau of Land Management but remained unsurveyed and unmarked on the ground at the time of the field annotation.