It runs from the Saint Paul Yard, also known as the Pigs Eye Yard, westward to the Short Line Bridge over the Mississippi River, where rails continue as part of the Minnesota Commercial Railway.

Previous trains would exit Saint Paul and follow the Mississippi River southwest until crossing at Fort Snelling, where they would follow the path of today's Hiawatha Avenue (Minnesota State Highway 55) and the Metro Blue Line toward the Milwaukee Road Depot.

Passenger trains continued to use the Short Line into Minneapolis until 1971 when the Hiawatha stopped service with the formation of Amtrak.

[3] Amtrak's Empire Builder continues to use the eastern portion of this line, but the train exits the subdivision to the north onto Minnesota Commercial Railway trackage to reach the now unused Midway station in Saint Paul.

Amtrak returned to using Saint Paul Union Depot in 2014, but continues to route trains in the same way.