2018 Map of Circle D-4 SW

About this map

The West Crazy Mountains dominate this high-latitude terrain within the Yukon-Koyukuk Census Area, presenting a landscape defined by significant elevation changes and subarctic water systems. The map detail highlights the Crazy Mountains range, where the headwaters of remote drainages begin their descent. Water courses like Discovery Cr and the N Fork Preacher Cr carve through the deep valleys between ridges, illustrating the natural drainage patterns of this unpopulated interior region. This 2018 survey by the U.S. Geological Survey provides an exacting look at the topographic contours of the Alaska interior, showing a wilderness area devoid of permanent human structures or roads, where the only markers are the township and range lines of the Public Land Survey System.