DOC Maps: California Geology
The California Department of Conservation is home to the California Geological Survey (CGS).
In April 1860 the California Legislature established the Geological Survey of California that has evolved during its 150 years of service, and several name changes, into today’s modern California Geological Survey (CGS).
The California Geological Survey provides geologic data and information to the State of California.
Interactive Web MapsScroll through the available web maps at the bottom. Click on the large picture (or the Open Map link) to open the web map in a new tab.
Geologic Data & MapsNotes:
- [AGOL] indicates that the Department of Conservation's official ArcGIS Online account hosts the data using cloud-based services.