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1951 Map of Mount Katmai B-3

Name: 1951 Topographic Map of Mount Katmai B-3
Creator: U.S. Geological Survey
Published: 1971
License: https://creativecommons.org/publicdomain/mark/1.0/

USGS Topo · Published 1971

About this map

Katmai National Monument dominates this 1951 topographic study, capturing a high-altitude landscape defined by massive glacial systems and volcanic peaks. The map reveals the dramatic topography of Mt Katmai and the neighboring Snowy Mountain, where the Serpent Tongue Glacier flows through deep valleys. Extensive fields of Crevasses are marked across the ice sheets, indicating the active nature of the glaciers at mid-century.

In the southern reaches, the turquoise waters of Crater Lake sit contained within steep-walled terrain, while the northern section is drained by the Rainbow River. The absence of roads or established trails, as noted by the Geological Survey, underscores the wilderness character of the Noisy Mountain area. This survey provides a primary record of ice margins and drainage patterns like Ikagluik Creek before modern climatic shifts altered the glacial reach.