2017 Map of Tanana B-1 NW

About this map

The Yukon River dominates the northern landscape of this interior Alaskan region, carving a wide channel that defines the local geography. Near the center of the waterway, Sixmile Island sits as a prominent landform within the river's path, indicating the shifting sediment patterns of this massive drainage system. The surrounding terrain is heavily dissected by numerous tributaries, including Sixmile Cr, Marshall Cr, and Russian Cr, which flow from the interior uplands toward the river valley. In the southeastern corner, Ruby Cr adds to the complex network of drainage that characterizes the Yukon-Koyukuk Census Area. This 2017 survey illustrates a wilderness shaped almost entirely by its water systems, where the lack of established settlements emphasizes the role of the river as the primary corridor for movement and natural resource distribution.