1

Wallace Creek, USGS aerial view, about 1990

USGS Photo

2

Wallace Creek fault investigation area on the Carrizo Plain. Numbers show signed posted nature trail features. Next image at #1..

3Tom at Wallace Creek fault offset .

4Stream offset along the San Andreas Fault near Wallace Creek, CA

5Stream offset north of the Carrizo Plain, on Bitterwater Road.

6Sag pond, San Andreas Fault along CA 25.

7San Andreas cable crossing & sag pond, CA Route 25.

8

Sheared tree limbs along CA, Route 25

; )

9San Andreas Fault trace, CA Route 25.

10California Route 25 along the San Andreas Fault.

11Pressure Ridge, California Route 25.

12San Andreas fault scarp & sag pond just east of California Route 25.

13Slump structure near the San Andreas Fault, California Route 25.

14Parkfield, CA. USGS seismic experiment center.

15Laser triangulation and GPS site, Parkfield, CA