The Minneapolis, St. Paul and Sault Ste. Marie Railroad (MStP&SSM) was a Class I railroad subsidiary of the Canadian Pacific Railway in the Midwestern United States. Commonly known since its opening in 1884 as the Soo Line after the phonetic spelling of Sault, it was merged with several other major CP subsidiaries on January 1, 1961, to form the Soo Line Railroad.

Passenger service

The Soo Line was never a major carrier of passenger traffic since its route between Chicago and Minneapolis was much longer than the competing Chicago, Milwaukee, St. Paul and Pacific Railroad (Milwaukee Road), Chicago and North Western Railway, and Chicago, Burlington and Quincy Railroad (Burlington Route) routes. It also had no direct access to Milwaukee. The primary trains operated by the Soo Line were: Additionally, local trains served Chicago to Minneapolis–St. Paul, Duluth–Superior to Minneapolis–St. Paul, Duluth to Thief River Falls, Minnesota, and some summer-only services which relieved The Mountaineer of the local work along its route.

Presidents

The Presidents of the Minneapolis, St. Paul and Sault Ste. Marie Railroad were:

Timeline

Locomotives

Preservation

A number of the railroad's rolling stock have been preserved in museums across the United States, some in operational condition. This list includes some of the more notable equipment.

Steam locomotives