BNSF's San Bernardino Subdivision

BNSF's crowded mostly triple track mainline as well as one of the last places to have ATSF Searchlight Signals was from San Bernardino west to Redondo Jct. with Union Pacific trackage rights trains from West Riverside to the Mt. Vernon Connector as well as Amtrak's Pacific Surfliner between Redondo Junction and Fullerton with Metrolink through out the entire Subdivision.