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1958 Map of Mark West Springs

Name: 1958 Topographic Map of Mark West Springs
Creator: U.S. Geological Survey
Published: 1968
License: https://creativecommons.org/publicdomain/mark/1.0/

USGS Topo · Published 1968

About this map

The Petrified Forest stands as a central geologic landmark in this late 1950s survey of the ridge country between Santa Rosa and Calistoga. The landscape is defined by the sharp rise of the Mayacmas Mts and the complex drainage systems of Mark West Creek and Porter Creek. Small rural communities and institutional sites are scattered throughout the valleys, including the Mark West Creek Rancheria and the settlement at Mark West Springs.

Evidence of early educational infrastructure is visible at the Alpine School and the Franz Valley School, while the rugged topography is punctuated by colorful place names like Devils Kitchen and Sugarloaf. Winding mountain roads such as Petrified Forest Road and Franz Valley Road connect these remote outposts, tracing the contours of a region transitioning from its pioneer ranching roots toward a more modern era of Sonoma County development.