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1983 Map of Mount St. Helens, 1987 Print
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1983 Map of Mount St. Helens

USGS Topo · Published 1987

About this map

The massive 1980 Crater and its central Lava Dome dominate this 1983 provisional survey, which documents the radically altered landscape of Mount St Helens just three years after its cataclysmic eruption. The terrain reflects the immediate aftermath of the blast, showing the wide Breach opening toward the north and the extensive Pumice Plain. To the northwest, areas of Blowdown signify the power of the lateral pressure wave that leveled forests within the Gifford Pinchot National Forest.

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Map Details

Date Portrayed1983
Date Published1987
PublisherU.S. Geological Survey
Map TypeTopographic
Scale1:24,000
Physical Dimensions22.1 x 26.9 inches

Editions of this 1983 Mount St. Helens Map

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Source Details

SourceU.S. Geological Survey
CopyrightPublic Domain