Southern California Geology Resources

As Southern California is one of the most geologically active and most populous regions in the US, there are many agencies monitoring all aspects of the geology here. This page will be a guide to those agencies and what they study.


United State Geological Survey (USGS)

USGS Pasadena Field Office

Geologic Mapping

Topographic Mapping


California Geological Survey

County and Local:


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Your Resource For Highways, Geology, Railroads, History, Bicycling, And More Throughout Southern California Since 1995.

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