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2023 Map of Devils Slide

Name: 2023 Topographic Map of Devils Slide
Creator: U.S. Geological Survey
Published: 2023
License: https://creativecommons.org/publicdomain/mark/1.0/

USGS Topo · Published 2023

About this map

Snoqualmie National Forest and the Alpine Lakes Wilderness encompass this heavily forested region of the Cascade Range, dominated by a complex network of glacial lakes and steep drainage basins. The South Fork Tolt Reservoir serves as a central landmark, collecting waters from the South Fork Tolt River and nearby high-altitude basins like Lynch Lake and Lake Titicaca. This environment is shaped by the dramatic topography of Devils Slide, where the landscape drops sharply toward the river valleys below.

Transportation through the dense timber is limited to specialized forest routes such as Tolt Reservoir Rd and Nat For Dev Rd 6200-4, which provide access to the remote interior. To the south, the watershed transitions toward the North Fork Snoqualmie River, featuring low-lying wetland areas like Fitchener Slough and Mud Lake. This map captures a strictly managed wilderness and utility landscape, where the primary infrastructure supports water resource management and forest conservation.