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1951 Map of Mount Katmai A-4

Name: 1951 Topographic Map of Mount Katmai A-4
Creator: U.S. Geological Survey
Published: 1976
License: https://creativecommons.org/publicdomain/mark/1.0/

USGS Topo · Published 1976

About this map

Katmai National Monument encompasses this dramatic volcanic landscape as it was documented in the mid-twentieth century. The terrain is defined by massive peaks including Mt Mageik and the active Trident Volcano, with the high Katmai Pass sitting between major drainage systems. To the south, the glacier-fed waters of Martin Creek and Mageik Creek flow toward the coast, where the broad Katmai River meets the Pacific at Katmai Bay.

One of the most striking geological features captured on this sheet is the Mageik Landslide, a massive debris flow scarring the slopes south of the mountain. Near the coast, the topography softens into a wide Tidal Flat along the bay. This 1951 photogrammetric survey provides a detailed look at the unpopulated wilderness before modern changes, documenting landmarks like Observation Mountain and Topographers Peak in an era when much of the monument remained unsurveyed and unmarked on the ground.