2015 Map of Ophir C-3 SW

About this map

Innoko River meanders through this portion of the interior, creating a complex network of oxbow lakes and abandoned channels characteristic of the low-lying Yukon-Koyukuk region. The landscape is defined by the heavy silt-bearing waters of the Dishna River, which flows through the southeastern portion of the quadrangle. In this environment, the shifting hydrology is the primary architect of the terrain, with small tributaries like Coffee Cr feeding into a vast wetland system. This 2015 U.S. Geological Survey representation reflects the modern state of these remote waterways before further natural migration of the riverbanks. The township and range lines of the Public Land Survey System, including t22s r8e and t21s r7e, provide the only formal structure to a wilderness dominated by fluvial processes.