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1989 Map of Polallie Ridge
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1989 Map of Polallie Ridge

USGS Topo · Published 1989

About this map

Alpine Lakes Wilderness Area dominates this high-elevation landscape within the Wenatchee National Forest, defined by a network of glacial lakes and steep ridges. The Pacific Crest National Scenic Trail traverses the northern section, crossing through Waptus Pass and skirting Lemah Creek beneath Island Mountain. This map documents a critical recreational corridor before many contemporary trail realignments, centered on significant water bodies like Waptus Lake and Cooper Lake. The terrain is marked by prominent landforms such as Polallie Ridge and No Name Ridge, which channel the Cooper River and Kachess River. This provisional survey provides a look at the backcountry infrastructure of the late 1980s, including the Owh Campground and various pack trails used for wilderness access.

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Map Details

Date Portrayed1989
Date Published1989
PublisherU.S. Geological Survey
Map TypeTopographic
Scale1:24,000
Physical Dimensions22.1 x 27.1 inches

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Source Details

SourceU.S. Geological Survey
CopyrightPublic Domain