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1950 Map of McCarthy A-8

Name: 1950 Topographic Map of McCarthy A-8
Creator: U.S. Geological Survey
Published: 1967
License: https://creativecommons.org/publicdomain/mark/1.0/

USGS Topo · Published 1967

About this map

The Hanagita River flows through a high-altitude landscape defined by glacial activity and steep drainages in this 1950s-era topographical study. A lone Cabin situated near Hanagita Lake represents the only indicated structure in the entire quadrangle, suggesting a region utilized primarily for seasonal trapping or prospecting rather than permanent settlement. The southern portion of the map is dominated by the North Fork Bremner River, which carves through Twelvemile Canyon, a feature highlighting the intense erosion and hydraulic power of the glacial meltwater systems.

Prominent vertical relief is anchored by Hanagita Peak, with surrounding areas marked by numerous Crevasses, indicating active ice fields. Surveyors utilized triangulation stations such as VABM 6162 Black and VABM 5515 Twelve to map this complex terrain. The drainage patterns of Sangaina Creek and Larsen Creek illustrate the interconnected network of waterways that define the northern foothills. This document serves as a record of the wilderness before later shifts in land management and environmental changes altered the glacial margins.