2019 Map of Ophir D-1 NW

About this map

North Fork Innoko River dominates this interior landscape of the Yukon-Koyukuk Census Area, its path marked by complex meanders and oxbow formations. This 2019 survey captures the hydrological character of the region before human infrastructure significantly altered the drainage basins. The southern portion of the quadrangle is defined by the winding course of Fourmile Cr, which feeds into the larger river system. The map reflects a remote wilderness environment where natural topography and seasonal water flow are the primary geographical features, illustrating the vast roadless stretches of Alaska's interior. Researchers can study the relationship between the elevated terrain in the north and the alluvial plains to the south, which dictate the shifting course of the river channels over time.