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2012 Map of Las Trampas Ridge

Name: 2012 Topographic Map of Las Trampas Ridge
Creator: U.S. Geological Survey
Published: 2012
License: https://creativecommons.org/publicdomain/mark/1.0/

USGS Topo · Published 2012

About this map

Saint Mary's College of California serves as a prominent landmark on the western edge of this 2012 landscape, where the East Bay's complex topography defines the suburban and wilderness boundaries. The area is dominated by the massive Northwest-Southeast orientation of Las Trampas Ridge and Rocky Ridge, which separate the residential developments of Stone Valley and Tice Valley from the watershed lands to the west. This period shows the established suburban character of the Interstate 680 corridor, contrasted with the protected open spaces and steep drainages of Bolinas Creek and Cull Creek.

Water management and conservation are central to the terrain, evidenced by the Upper San Leandro Reservoir and the numerous named canyons like Riley Canyon and Miller Canyon. Smaller settlements and specialized sites such as the San Damiano Retreat and the private Little Hands Stolport are tucked into the folds of the ridges. The map meticulously traces the transition from the manicured grounds of the Rossmoor Walnut Creek Golf Course to the high elevations of Las Trampas Peak and Ramage Peak.