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2019 Map of Iditarod A-4 SW

Name: 2019 Topographic Map of Iditarod A-4 SW
Creator: U.S. Geological Survey
Published: 2019
License: https://creativecommons.org/publicdomain/mark/1.0/

USGS Topo · Published 2019

About this map

The Kuskokwim Mountains dominate this interior Alaska landscape, defining a region of dramatic topographic relief along the border of the Bethel Census Area and the Yukon-Koyukuk Census Area. The terrain is characterized by a series of high ridges and narrow drainage basins, notably the prominent Twin Buttes situated near the center of the survey. These landmarks provided essential navigational points for travelers and trappers moving through the remote territory between major river systems.

Waterways like the N Fork George River in the northeast and Steamboat Cr in the south channel the seasonal snowmelt through deep valleys. Smaller tributaries such as Bell Cr further dissect the land, illustrating the complex natural drainage patterns that have shaped this portion of the Alaskan bush. This survey captures the wilderness in its modern state, serving as a baseline for understanding the physical geography of the Iditarod region far from established settlements.