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1989 Map of Silverton

Name: 1989 Topographic Map of Silverton
Creator: U.S. Geological Survey
Published: 1989
License: https://creativecommons.org/publicdomain/mark/1.0/

USGS Topo · Published 1989

About this map

Silverton serves as the focal point for this 1989 provisional survey, situated at the confluence of the South Fork Stillaguamish River and Silver Gulch. The landscape is defined by its industrial mining history, evidenced by the presence of the Bonanza Queen Mine, St Louis Mine, and Sperry-Iverson Mine scattered across the high ridges. These operations illustrate the era of mineral extraction in the Cascades, with many sites located near significant peaks like Marble Peak and Hall Peak.

High-altitude hydrology is a major feature, with numerous alpine bodies such as Independence Lake, Coal Lake, and Copper Lake tucked into the drainage basins of Williamson Creek and Beaver Creek. Much of the western portion is dedicated to the Boulder River Wilderness, while the southern reaches fall within the Snoqualmie National Forest, showing a transition from active resource extraction to federal preservation.