High Quality Content by WIKIPEDIA articles! The Hiawatha Line (to be called the Blue Line in the future) is a 12.3 mi (19.8 km) light rail corridor in Hennepin County, Minnesota that extends from downtown Minneapolis to the southern suburb of Bloomington. The line was originally named after Hiawatha Avenue which runs parallel to portions of the line. Major connections on the line include the Mall of America, the Minneapolis–St. Paul International Airport, the Metrodome, and Target Field in downtown Minneapolis.