The Belt Railway Company of Chicago (reporting mark BRC), headquartered in Bedford Park, IL, is the largest switching terminal railroad in the United States. It is co-owned by six Class I railroads — BNSF Railway, Canadian National Railway, Canadian Pacific Railway (the BRC's north-south main line's northern terminus is, like the Indiana Harbor Belt, the Milwaukee District West Line in Chicago's Cragin neighborhood), CSX Transportation, Norfolk Southern Railway, and Union Pacific Railroad — each of which uses the switching and interchange facilities of the BRC. Owner lines and other railroads bring their trains to the Belt Railway to be separated, classified, and re-blocked into new trains for departure. The BRC also provides rail terminal services to approximately 100 local manufacturing