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1960 Map of Anchorage B-4

Name: 1960 Topographic Map of Anchorage B-4
Creator: U.S. Geological Survey
Published: 1965
License: https://creativecommons.org/publicdomain/mark/1.0/

USGS Topo · Published 1965

About this map

The Knik River valley and its surrounding ice fields define this mid-century Alaskan landscape, captured during a period of active aerial photogrammetry. The map documents a dynamic glacial environment where the Marcus Baker Glacier, Knik Glacier, and Gannett Glacier converge toward the river basin. A notable human element in this wilderness is the Landing Strip located in Grasshopper Valley, suggesting the era's reliance on bush aviation for access to remote mountain interior points.

Water levels and glacial movements are central to the geography here, particularly around Lower Lake George and Inner Lake George. These bodies of water are separated by the Low Ridge and fed by runoff from Colony Glacier. The presence of numerous Crevasses marked across the glacial surfaces highlights the shifting nature of the terrain between high peaks and the drainage of Metal Creek and Fourteenmile Creek.