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2023 Map of Lake Shannon

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

USGS Topo · Published 2023

About this map

The town of Concrete sits at the confluence of the Skagit River and the Baker River, serving as a hub for the northern Skagit Valley. This 2023 edition highlights the area’s dependence on the river systems and the significant water storage at Lake Shannon, which occupies a massive portion of the northwestern terrain. Further east, the settlement of Van Horn is positioned along the northern bank of the Skagit, near where Jackman Creek flows down from the steep heights of Jackman Ridge.

The landscape is characterized by the protected wilderness of the Mount Baker-National Forest and the Skagit Wild and Scenic River corridor. High-elevation features like Thunder Lakes and South Fork Thunder Creek illustrate the glacial and alpine drainage patterns that define this corner of Washington. The map also traces local infrastructure, from the residential streets of Concrete like Cedar Grove Ave to the remote Jackman Creek Rd winding into the timberlands.