1958 Map of Tyonek D-8

About this map

Mount Estelle and Cathedral Mountain anchor this 1958 survey of the Alaskan interior, a landscape defined by massive ice flows and glacial drainage systems. The Skwentna River serves as the primary corridor through the terrain, fed by a network of tributaries including Muddy Creek and Black and Tan Creek. The topography is dominated by the Black and Tan Glacier in the southeast and the Stoney Glacier in the north, providing a clear record of the area's glaciology before later twentieth-century shifts. This map, based on 1957 aerial photography, captures the region in a pristine state with no roads or trails yet established. Features like Portage Pass and Mount Stoney represent the landmark-based navigation necessary for travel in this unsurveyed territory, where land lines were predetermined by the Bureau of Land Management rather than established by ground survey.