1993 Map of Tyonek D-3

About this map

The Yentna River and Kahiltna River converge in this remote landscape of the Matanuska-Susitna Borough, defined by a complex web of glacial waterways and marshy lowlands. The settlement of McDougal sits at a critical junction near where Indian Creek meets the main river channel, representing a focal point for early twentieth-century regional travel. The terrain is crisscrossed by historic seasonal routes, most notably the Iditarod Trail (Approximate) and various segments of the Winter Trail, which provided essential overland access before modern infrastructure. Numerous water bodies such as Fish Lakes, Bulchitna Lake, and Alexander Lake dot the map, alongside scattered cabins and a landing strip that highlight the reliance on bush aviation and small-scale habitation in the Alaskan interior. The presence of Twentymile Slough and multiple named creeks like Deep Creek and Fox Creek further illustrate the intricate drainage patterns of this subarctic environment.