Tags: Mountain Pass.
San Gorgonio Pass el. 1591 ft (485 m) is a gap on the rim of the Great Basin between the San Bernardino Mountains to the north and the San Jacinto Mountains to the south carrying Interstate 10 and the Union Pacific Railroad between the Los Angeles basin and the Coachella Valley. Like Cajon Pass to the northwest it was created by the San Andreas Fault with the valleys leading up to the pass aligned with the fault.