Soo Line tower at Minot, North Dakota, June 29, 1982. Soo tower at the rail line crossing, photograph by Harold Hall, from the Norm Keyes Collection.

Soo Line Railroad Sheyenne River viaduct looking south bound at Valley City, North Dakota, on May 17, 2003. Photo by GJ Werkema. Other subject classes: bridge, viaduct

Soo Line depot at Omemee, North Dakota, undated. Two story Soo Line depot, photograph by Robert Johnston, from the Norm Keyes Collection.

Soo Line depot at Fairmont, North Dakota, undated. Soo Line depot, photograph by Robert Johnston, from the Norm Keyes Collection.

Amtrak diesel locomotive 343 leading Train 7 at the Great Northern depot, Rugby, North Dakota, looking east in the 1990s. Photograph by Charles W. Bohi.

Northern Pacific station building at Grafton, North Dakota, undated. Northern Pacific depot, photograph by Norm Keyes, from the Norm Keyes Collection.

Northern Pacific station at Mandan, North Dakota, circa 1935. View from standing passenger train of platform activity, large groups of people, railroad workers, passenger cars in house tracks. Photo by Herman Hunt, J.M. Fredrickson collection..Other Subject Classes: station, passenger train, railroad employee, people, passenger car

Northern Pacific station at Dickinson, North Dakota, on August 27, 1969. View from train of three-story station, parking lot, town street, commercial buildings. Photo by J.M. Fredrickson. Other Subject Classes: station, town scene, commercial building

Northern Pacific station at Casselton, North Dakota, circa 1910. Brick station, train order signal, people in front, baggage cart loaded with trunks. J.M. Fredrickson collection.. Other Subject Classes: station, people, signal, baggage cart

Northern Pacific station at Berea, North Dakota, circa 1965. View from eastbound train Number 2, The Mainstreeter, of small frame station being refurbished, train order signal. Photo by J.M. Fredrickson. Other Subject Classes: station, signal, passenger train