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2023 Map of Big Snow Mountain

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

USGS Topo · Published 2023

About this map

Big Snow Mtn dominates this high-altitude landscape along the border of King and Kittitas counties. The area is defined by a dense concentration of alpine water bodies, ranging from the large Angeline Lake and Lake Malachite to smaller tarns like Jewel Lake and Locket Lake. These features are preserved within the Alpine Lakes Wilderness, a region that relies on a network of established paths rather than roads for access.

Traces of backcountry travel are visible through the W. Fork Foss Trl and the Necklace Valley Trl, which navigate the steep drainage systems of the Snoqualmie National Forest. The convergence of massive rock formations like Chimney Rock and Malachite Peak illustrates the dramatic geological relief of the Central Cascades. This map serves as a primary reference for the hydrography of the Foss and Snoqualmie river headwaters, including remote features such as Chetwoot Lake and Copper Lake.