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1955 Map of Concrete

Name: 1955 Topographic Map of Concrete
Creator: U.S. Geological Survey
Published: 1967
License: https://creativecommons.org/publicdomain/mark/1.0/

USGS Topo · Published 1967

About this map

Ross Lake and Lake Chelan dominate the interior of this mid-century survey, which reveals the complex hydrology and geography of the North Cascade Range before the full impact of modern development. Along the Skagit River corridor, small settlements like Concrete and Rockport serve as gateway hubs for the regional timber and hydroelectric interests. Further south, the Great Northern railway skirts the western edge of the mountains, connecting Granite Falls and Robe to the industrial centers of the coast.

The map highlights the transition from lowland riverside communities to the massive peaks of Mt Baker and Glacier Peak. Isolated locations such as Stehekin and Lucerne on the upper reaches of Lake Chelan illustrate the reliance on water-based transit in areas where the road network, including the Cascade River Road, remains limited by the dramatic rise of the Chelan Mountains. This period of mapping documents the early borders of the Mt Baker National Forest and Okanogan National Forest prior to later wilderness redesignations.