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1956 Map of Black River D-4

Name: 1956 Topographic Map of Black River D-4
Creator: U.S. Geological Survey
Published: 1984
License: https://creativecommons.org/publicdomain/mark/1.0/

USGS Topo · Published 1984

About this map

The Lower Porcupine River winds through the northern reaches of this interior Alaskan landscape, defining the topography of the Ramparts. Surveyed in the mid-1950s, the terrain is marked by high elevations such as Negrohead Mountain in the southeast and Frozen Calf Mountain to the west. This area, largely unsurveyed and unmarked at the time of mapping, shows almost no human infrastructure save for a solitary cabin situated along the riverbank near the bend of the Porcupine.

A series of Vertical Angle Bench Marks, including VABM Hud 2809 and VABM Tommy 1592, provides a look at the early geodetic control established in this part of the Yukon-Koyukuk region. The drainage patterns of Rat Creek and numerous unnamed ponds across the central flats suggest a landscape dominated by seasonal wetlands and the shifting course of the primary river system before modern development.