The St. Paul and Duluth Railroad was reorganized from the Lake Superior and Mississippi Railroad in 1877. It was bought by the Northern Pacific in 1900. Known to this day as the "Skally Line", it operated from Saint Paul to Duluth, Minnesota, with branches to Minneapolis, Taylors Falls, Kettle River, and Cloquet, in Minnesota, and Grantsburg and Superior in Wisconsin.
https://en.wikipedia.org/wiki/St._Paul_and_Duluth_Railroad