As the line functions as a "loop" it does not have any termini. From Amtrak's Central Station in the South Main Arts District, it runs north joining the original Main Street Line along the Main Street pedestrian mall. After following this line for 1.8 mi (2.9 km), it splits off to the west just past A.W. Willis Avenue (formerly Auction Avenue). Passing Front Street, it turns south along the Illinois Central tracks toward the Pyramid Arena. The loop goes under the Interstate 40 bridge, emerging in front of the Cook Convention Center along the waterfront. Continuing along the IC tracks, it follows the riverfront until the tracks overlay Tennessee Street. Here, the loop continues along Tennessee eventually turning east onto GE Patterson Avenue. The loop is completed when it travels under the IC tracks in front of Central Station, and turns back onto South Main Street.