2016 Map of Big Delta A-3 NW

About this map

Goodpaster River meanders across the southern portion of this interior landscape, marking a significant hydrological feature within the Unorganized Borough. The river is flanked by an extensive network of wetlands and low-lying floodplains that dominate the southern half of the quadrangle. In contrast, the northern terrain rises into complex upland ridges, where Liseum Slough cuts through the marshy lowlands to the west. This 2016 survey, produced by the U.S. Geological Survey, illustrates the raw drainage patterns of the Alaskan wilderness before any significant human development or infrastructure altered the natural course of its waterways. The map is a study in natural topography, showing the sharp transition from the riparian environment of the river valley to the steep contouring of the interior highlands.