2019 Map of McGrath B-2 SW

About this map

The Alaska Range dominates this portion of the Yukon-Koyukuk Census Area, where the terrain is defined by extreme elevation changes and high-altitude drainage systems. The hydrologic network is centered on Sheep Creek, also labeled as Sheep Cr, which flows through steep-walled valleys in the southeastern sections of the quadrangle. This 2019 survey by the U.S. Geological Survey illustrates the intersection of several township and range lines, including t26n r25w and t25n r24w, in a landscape devoid of permanent human settlements or infrastructure. The map serves as a primary reference for the physical geography of this interior wilderness, capturing the precise contours of the ridges and the paths of the seasonal mountain runoff before it joins larger river systems to the west.