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1958 Map of Tyonek B-8

Name: 1958 Topographic Map of Tyonek B-8
Creator: U.S. Geological Survey
Published: 1963
License: https://creativecommons.org/publicdomain/mark/1.0/

USGS Topo · Published 1963

About this map

Glacial systems and braided waterways dominate this mid-century survey of the Tyonek B-8 quadrangle. The Skwentna River serves as a primary hydrological feature, receiving runoff from the extensive North Twin Glacier and South Twin Glacier which carve through the high elevations. The landscape is defined by the movement of ice and water, evidenced by the Harpoon Glacier and the Nagishlamina River further south.

In the southwestern corner, the Chilligan River valley provides a distinct corridor through the terrain. Away from the massive ice sheets, Max Lake offers a rare stationary water body amidst the shifting alluvial plains. This 1958 field-annotated map captures the region before any significant human infrastructure or road networks were established, documenting an environment shaped entirely by natural geological forces.