1. California Chapter Fifteen
Online Regional Atlas of the United States and Canada
Kenneth C. Martis, Professor of Geography, West Virginia University
2002 Edition

6. The 15 Largest Earthquakes in the Contiguous United States

7. General location of the San Andreas fault
General location of the San Andreas fault
and several other major faults in California

10. http://www. statlab. iastate. edu/soils/photogal/orders/ordmap
ALFISOLS

27. California Chapter Fifteen
Online Regional Atlas of the United States and Canada
Kenneth C. Martis, Professor of Geography, West Virginia University
2002 Edition