Cajon Pass
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Cajon Pass is a mountain pass between the San Bernardino Mountains to the east and the San Gabriel Mountains to the west in Southern California. Created by the movements of the San Andreas Fault, it h
I-15 passing over Cajon Summit
A freight train passing in front of Mormon Rocks
Near the State Route 138 and Interstate 15 junction, the Mormon Rocks are evidence of the San Andreas fault beneath the surface.
Santa Fe Railway brakeman atop a train that has paused at Cajon siding to cool its brakes after descending Cajon Pass in March 1943
San Andreas Fault
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The San Andreas Fault is a continental right-lateral strike-slip transform fault that extends roughly 750 mi through the U.S. state of California. It forms part of the tectonic boundary between the Pa
Cajon Pass
…pass between the San Bernardino Mountains to the east and the San Gabriel Mountains to the west in Southern California. Created by the movements of the San Andreas Fault, it has an elevation of 3,777 ft (1,151 m). Located in the Mojave Desert, the pass is an important link from the Greater San Bernardino Area to the…
The fault (right) and the Carrizo Plain (left)
Arrows show relative motion of the North American plate (southeastward) and the Pacific plate (northwestward)
Plaque showing location of San Andreas Fault in San Mateo County
Aerial photo of the San Andreas Fault in the Carrizo Plain