Welcome to Cajon Pass, California! Mon 29 April 2013. There are four tracks over the western side of Cajon Pass on three different alignments. The first track was laid in 1885 and has a maximum gradient of 3%. Now known as Main 3 it is still in use, and can be seen in the foreground. The ATSF laid a second track in 1913 on a longer but lightly less steep (2.2%) alignment. The BNSF installed an additional track on this alignment in 2008. The two tracks are seen here and are now Main 1 (further) and Main 2. Southern Pacific built its own track in 1967, the West Colton - Palmdale Cut-Off. Now owned by Union Pacific, it is higher than the other tracks and can be seen in the distance. Mains 1 - 3 are owned by BNSF, but UP have running powers. All four tracks are bi-directional, and BUSY!!
Cajon Pass train photos