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2018 Map of Diablo

Name: 2018 Topographic Map of Diablo
Creator: U.S. Geological Survey
Published: 2018
License: https://creativecommons.org/publicdomain/mark/1.0/

USGS Topo · Published 2018

About this map

Danville and San Ramon anchor the valley floor in this modern survey of the San Ramon Valley, showing the extensive residential development that has come to define the area. The map illustrates a landscape where suburban growth meets the protected slopes of the Diablo Range, featuring master-planned communities like Blackhawk and established neighborhoods such as Alamo Oaks and Sycamore Valley. Educational and recreational infrastructure is well-documented, from the Diablo Valley College - San Ramon Campus to the extensive trail network including the Iron Horse Regional Trail.

Elevated terrain features prominently in the north and west, with Rock City, Fossil Ridge, and Wall Point marking the ascent toward the higher peaks. The transition from the valley floor to the Sherburne Hills and Las Trampas Ridge highlights the complex topography that surrounds Camino Tassajara and Stone Valley. The map also traces local waterways like San Ramon Creek and Bollinger Canyon Creek, which have shaped the settlement patterns and drainage of this Contra Costa County region.