Geologic Mapping in the western United States

Geologic Mapping Data

Northern California Transect

Welcome! You are connected to the U. S. Geological Survey (USGS) homepage for the Northern California Transect, a project of the Western Geologic Mapping Team. This page presents the index map. Click on the boxes to link to pages that describe the maps and direct you to the publishers.

For information contact: rjmcl@isdmnl.wr.usgs.gov

Shaded Relief map of California

Click on the image to download the file

• Search the National Geologic Map Database
• Geophysical studies in the Western Region
• U.S. Geological Survey geologic mapping in the West
• U.S. Geological Survey geologic mapping in California