Albert Lea Subdivision

The Albert Lea Subdivision or Albert Lea Sub is a railway line operated by Union Pacific Railroad in Minnesota and Iowa. It runs from Hoffman Avenue in Saint Paul, Minnesota south to Mason [City, Iowa], and is a segment of the former Chicago, [Rock Island and Pacific Railroad] "Spine Line" which ran from the Twin Cities to Kansas City, Missouri.
In the north, the line initially runs south-southeast along the east bank of the Mississippi River until reaching the St. Paul [Union Pacific Rail Bridge], where it crosses the river and begins heading south-southwest. The line is primarily signaled using centralized traffic control.