The San Andreas Fault Making Lakes!
Map data: 2013 Google, 2013 DigitalGlobe
Location of Jackson Lake
near Wrightwood, CA in the San Gabriel Mountains.
34.4 latitude, -117.7 longitude
The San Andreas Fault cuts right into this area. Because of the fault movement, the surrounding land sinks down or 'sags'. Water collects in the depression and a lake is formed. These are called "Sag Ponds".
Aerial Views of :