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1963 Map of Sonny Boy Lakes

Name: 1963 Topographic Map of Sonny Boy Lakes
Creator: U.S. Geological Survey
Published: 1970
License: https://creativecommons.org/publicdomain/mark/1.0/

USGS Topo · Published 1970

About this map

The North Fork and South Fork Cascade River converge within the Mt Baker National Forest, forming a deep drainage system that dictated early access to this part of the North Cascades. The 1963 field survey documents the Cascade Road and Sonny Boy Road as the primary corridors through the heavy timber, leading toward high-elevation landmarks like the Hidden Lake Lookout and the jagged Hidden Lake Peaks.

Glacial activity is evident in the cluster of alpine basins, including the namesake Sonny Boy Lakes—comprising Lake No 1 and Lake No 2—and the isolated Long Gone Lake. This era reflects a period of established forest management and recreation, anchored by the Mineral Park Campground along the riverbanks. The map serves as a record of the drainage patterns of Kindy Creek and Mutchler Creek before later wilderness designations further limited motorized access.