Editing Soo Line Railroad (section)

{{Short description|American class I railroad}}
{{use mdy dates|date=July 2023}}
{{Infobox rail
| railroad_name = Soo Line Railroad
| logo          = SOO-Logo.svg
| system_map    = Soo Line.png
| map_caption   = Map of the Soo Line Railroad. Red lines are former SOO trackage operated by CPKC; dark blue lines are former [[Chicago, Milwaukee, St. Paul and Pacific Railroad|MILW]] trackage also now operated by CPKC; green lines are former SOO trackage spun off to [[Wisconsin Central Ltd.|WC]] and now part of [[Canadian National Railway|CN]]. Grey lines in North Dakota are operated by Short Lines ([[Dakota, Missouri Valley and Western Railroad|DMVW]] and [[Northern Plains Railroad|NPR]]) and dotted light blue lines are abandoned.
| image         = Soo 6062 SD60M Candy Apple Red.jpg
| image_caption = SOO 6062, an [[EMD SD60M]], leads a train through Wisconsin.
| marks         = SOO
| locale        = [[North Dakota]], [[Wisconsin]], [[Minnesota]], [[Michigan]], [[Illinois]]
| start_year    = {{start date and age|1961}}
| end_year      = <br/>{{end date and age|1990}}<br/>(as an independent railroad; to present for CP ownership)
| gauge         = {{Track gauge|ussg|allk=on}}
| hq_city       = [[Minneapolis]], [[Minnesota]]<ref name=report-2007/>
|successor=[[Canadian National Railway]], [[Canadian Pacific Railway]]}}

The '''Soo Line Railroad''' {{reporting mark|SOO}} is one of the primary [[United States]] [[Rail transport|railroad]] [[subsidiary|subsidiaries]] for the [[CPKC|CPKC Railway]] {{reporting mark|CPKC}}, one of six U.S. [[Class I railroad]]s, controlled through the '''Soo Line Corporation'''. Although it is named for the [[Minneapolis, St. Paul and Sault Ste. Marie Railroad]] (MStP&SSM), which was commonly known as the Soo Line after the [[Phonemic orthography|phonetic spelling]] of [[Sault Ste. Marie, Michigan|Sault]], it was formed in 1961 by the consolidation of that company with two other CPKC subsidiaries: The [[Duluth, South Shore and Atlantic Railway]], and the [[Wisconsin Central Railway (1897–1954)|Wisconsin Central Railway]]. It is also the successor to other Class I railroads, including the [[Minneapolis, Northfield and Southern Railway]] (acquired 1982) and the [[Chicago, Milwaukee, St. Paul and Pacific Railroad]] (Milwaukee Road, acquired at bankruptcy in 1985). On the other hand, a large amount of mileage was spun off in 1987 to [[Wisconsin Central Ltd.]], now part of the [[Canadian National Railway]]. The Soo Line Railroad and the [[Delaware and Hudson Railway]], CPKC's other major subsidiary (before the 2008 [[Dakota, Minnesota and Eastern Railroad|DM&E]] acquisition), presently [[Trade name|do business as]] the [[Canadian Pacific Railway]] (CP). Most equipment has been repainted into the CP scheme, but the U.S. [[Surface Transportation Board]] groups all of the company's U.S. subsidiaries under the Soo Line name for reporting purposes.<ref name=report-2007>[http://www.stb.dot.gov/econdata.nsf/f039526076cc0f8e8525660b006870c9/f149963fc7fe3321852574430067e616/$FILE/2007%20Annual%20report%20Form%20R-1's%20Soo%20Line%20Railroad%20Company.pdf Annual Report of Soo Line Railroad Company to the Surface Transportation Board for the Year Ended December 31, 2007], p. 18</ref> The [[Minneapolis]] headquarters are in the [[Canadian Pacific Plaza]] building, having moved from the nearby [[Soo Line Building]].