Please Note: This is an archived website. It is recommended to search on-line for revised or newer information.
USGS Banner with Coachella Valley as seen from Keyes View in Joshua Tree National Park
Western Earth Surface Processes Team

Geology of Southern California

This website provides a general overview of Southern California's regional geology including selected information about the rocks and landscape features, geologic history, the fault systems, mountain ranges, sediment-filled basins, and natural resources.

Physiographic provinces of Southern California. BK - Bakersfield
BW - Barstow
LA - Los Angeles
PD - Palmdale
PS - Palm Springs
RV - Riverside
SA - Santa Ana
SB - San Bernardino
SBR - Santa Barbara
SD - San Diego
VT - Ventura
VV - Victorville
Physiographic provinces of Southern California. Click on the map to visit a province.  
Table of Contents

Regional Geologic Overview

Geology of the Inland Empire Region
This website provides a detailed, moderately technical overview of the geology of the fault systems in Southern California
including the San Andreas, San Jacinto, San Gabriel, and other regional faults.

Peninsular Ranges Province

Transverse Ranges Province

Colorado Desert Province

Coastal Ranges Province

Geologic Maps of Southern California

Geology and Geologic Mapping Investigations
(Federal, State, regional, academic programs, etc.)

Bibliography on Southern California Geology

Contact USGS about Southern California Geology

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