A cooperative project with the California Geological Survey

Geologic Map Introduction

The rocks and fossils of the San Francisco Bay region reveal that the geology there is the product of millions of years at the active western margin of North America. The result of this history is a complex mosaic of geologic materials and structures that form the landscape. A geologic map is one of the basic tools to understand the geology, geologic hazards, and geologic history of a region.

This section of the Web site includes:

Maps - An on-line version of the geologic map with zoom and pan capabilities, along with photos and more information about the geology and geologic history of 15 locations around the region. Click here to see more information about SF Bay Area regional maps.

About SFBR Geology - Photos and more information about geologic maps and the geology and geologic history of the region.

Downloads - Downloadable versions of the geologic map poster for printing, on-screen viewing, and viewing the map in Google Earth™.

Links - Links to other sites related to geologic maps and the geology of the region.