The Los Angeles Junction Railway (reporting mark LAJ) is a wholly owned subsidiary of the BNSF Railway and provides rail switching service on 64 miles of track in Los Angeles County, California.

Its tracks are in the small industrial city of Vernon and adjacent industrial areas, southeast of Downtown Los Angeles.

The LAJ was planned in the early 1920s as the switching railroad for the Central Manufacturing District in the cities of Vernon, Maywood, Bell and Commerce.

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