Geologic Mapping in the western United States

Geologic Mapping in California

Welcome! The U.S. Geological Survey and its partners conduct geologic mapping in many parts of California. Use the links below to explore what mapping is underway and how it is contributing to diverse problems such as understanding earthquake shaking, finding minerals, and evaluating ecosystem environments.

Mapping projects:

Southern California Project (SCAMP)

Las Vegas Urban Corridor

San Francisco Bay Region

Death Valley National Park mapping project

National Parks studies

Mojave Desert Ecosystem Science

Northern California transect

Related studies in USGS

Oil and Gas seeps

California Earthquake Studies

Volcano studies

• Long Valley (Mammoth)
• others

Coastal studies

 Shaded relief map of California

Other USGS studies in California

Geologic Mapping by California Division of Mines and Geology