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1988 Map of South Sister
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1988 Map of South Sister

USGS Topo · Published 1988

About this map

South Sister dominates this high-altitude landscape, where the summit's Teardrop Pool sits amidst a complex network of moving ice, including the Eugene Glacier, Skinner Glacier, and Prouty Glacier. The map illustrates a dramatic volcanic geography defined by massive features like Rock Mesa and Le Conte Crater, which overlook the expansive Wickiup Plain. This 1988 survey captures the intersection of the Willamette National Forest and Deschutes National Forest, a region defined by its lack of roads and reliance on paths such as the Pacific Crest National Scenic Trail. Water is a constant presence in the form of alpine basins like Sisters Mirror Lake, Lancelot Lake, and Honey Lakes, while lower elevations are marked by landmarks like The House Rock and Sphinx Butte.

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Map Details

Date Portrayed1988
Date Published1988
PublisherU.S. Geological Survey
Map TypeTopographic
Scale1:24,000
Physical Dimensions22.05 x 26.92 inches

Editions of this 1988 South Sister Map

This is the sole edition of this map. No revisions or reprints were ever made.

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Source Details

SourceU.S. Geological Survey
CopyrightPublic Domain