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2020 Map of Rimrock Lake

Name: 2020 Topographic Map of Rimrock Lake
Creator: U.S. Geological Survey
Published: 2020
License: https://creativecommons.org/publicdomain/mark/1.0/

USGS Topo · Published 2020

About this map

Rimrock Lake and its surrounding mountain ridges dominate this part of the Snoqualmie National Forest, where transportation and recreation infrastructure follow the water's edge. The White Pass Highway skirts the northern shoreline, passing through the Rimrock Tunnel near the settlement of Rimrock. This area serves as a critical point for backcountry access, evidenced by the presence of the Tieton State Airport and the numerous coves such as Silver Salmon Cove and Lonesome Cove.

The high-elevation terrain is defined by prominent basaltic features and subalpine openings. Notable geological formations like the Wildcat Post Piles and Westfall Rocks stand near the highway, while the interior is marked by high summits including Shellrock Peak and the Rattlesnake Peaks. Drainage systems like Rattlesnake Cr and Wildcat Cr carve through Russell Ridge and Bethel Ridge, creating a complex network of valleys that historically supported summer grazing and forest management.