Please note that the content of this book primarily consists of articles available from Wikipedia or other free sources online. 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.