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1955 Map of Castle Rock Ridge

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

USGS Topo · Published 1967

About this map

San Andreas Rift Zone geology dominates this mid-century survey of the Santa Cruz Mountains, where the high ridgeline of Castle Rock Ridge separates the watersheds of Santa Clara and Santa Cruz counties. The map captures a transition period in these highlands, showing institutional and recreational enclaves like Alma College, Stuart Camp, and Redwood Camp set amongst the deep drainages of Bear Creek and Saratoga Creek.

Notable for its record of rural educational infrastructure, the sheet identifies several local schools including Central School, Lakeside School, and Montezuma School. Cultural landmarks such as Uncle Billys Cabin and the community of Boulder Creek appear alongside mid-century water management features like Lexington Reservoir and the Howell Reservoirs. The presence of Skyline Boulevard tracing the crest highlights the era's primary mountain access route through this complex landscape of summits like The Peak and Mount Bielawski.