Shutter ridge

A shutter ridge is a ridge which has moved along a fault line, blocking or diverting drainage. Typically, a shutter ridge creates a valley corresponding to the alignment of the fault that produces it.^[1] Shutter ridges occur exclusively at strike-slip faults.

Example Locations

• Oakland, California^[2]
• Dragon's Back, Carrizo Plain, CA

References

1. Glossary, Earthquake Hazards Program, USGS Archived 2014-09-29 at the Wayback Machine
2. Easterbrook, Don J. (1999). Surface processes and landforms (2. ed.). Upper Saddle River, NJ: Prentice Hall. ISBN 0-13-860958-6.