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1956 Map of Black River D-1

Name: 1956 Topographic Map of Black River D-1
Creator: U.S. Geological Survey
Published: 1959
License: https://creativecommons.org/publicdomain/mark/1.0/

USGS Topo · Published 1959

About this map

The Salmon Trout River meanders through a valley in the northern reaches of the Yukon-Koyukuk region, its course flanked by elevation markers that define the complex terrain of the late 1950s. This survey records a wilderness largely untouched by permanent settlement, where the landscape is defined by the Alaska Yukon and United States Canada international boundaries. Significant vertical control points like Vabm 3651 Storm and Vabm 3420 Fort serve as the primary landmarks in a region without roads or trails.

The confluence of drainage systems such as Fort Creek into larger basins illustrates the natural hydrology prior to any modern development. Because the map notes it was produced from 1955 aerial photography and 1956 field annotations, it represents a high-fidelity record of the borderlands' physical state during the mid-century era. The absence of human-made infrastructure highlights the area's isolation along the eastern edge of the Alaska territory.