 Some of the buildings that remain are still in use in their primary purposes.The two ends of the former railroad are still in use as of 2013.The section between Barstow and Riverside through Cajon Pass, which includes the disputed crossing in Colton, remains one of the busiest rail freight corridors in the United States, seeing trains of BNSF Railway and Union Pacific Railroad as well as Amtrak's daily "Southwest Chief" passenger train.