1956 Map of Tanacross C-4

About this map

West Fork Dennison Fork dominates the hydrology of this interior Alaskan wilderness, as mapped during the mid-1950s by the Geological Survey and Bureau of Land Management. The terrain is characterized by a complex network of unnamed ridges and drainages within the Tanacross C-4 quadrangle, showing the primitive state of the land before any established roads or trails were documented. This specific survey was compiled using photogrammetric methods from aerial photography taken in 1954 and 1955, providing a precise record of the natural swamp and river patterns. Because the region remains largely devoid of permanent human settlements or structures on this sheet, the primary value for researchers lies in the intricate contouring and the natural course of the West Fork Dennison Fork as it winds through the Copper River Meridian.