1956 Map of Black River A-6

About this map

Big Creek meanders through this portion of the Yukon-Koyukuk region, defining a landscape dominated by complex drainage patterns and numerous unnamed lakes and ponds. Based on aerial photographs from 1955 and field annotated in 1956, the map documents a wilderness area largely devoid of permanent roads or trails at the time of the survey. The intricate contour lines illustrate a low-lying terrain punctuated by subtle ridges, where the water table is high enough to sustain an extensive network of wetlands. This cartographic study by the Geological Survey captures the territory before modern infrastructure, preserving the original hydrological layout of the Big Creek drainage basin and its surrounding hills.