Great Northern Diesel Locomotive 325, Class SDP40 in Whitefish, Montana, undated. Photograph by Wade Stevenson.

Great Northern Diesel Locomotive 324, Class SDP40 in Whitefish, Montana, undated. Photograph by Wade Stevenson.

Great Northern Diesel Locomotive 3033 at Whitefish, Montana, August 1969, simplified orange/green paint scheme. Other subject classes: Locomotive

Great Northern Diesel Locomotive 3021 at Whitefish, Montana, August 9, 1969, simplified orange/green paint scheme. Other subject classes: Locomotive

Great Northern Diesel Locomotive 181 at Whitefish, Montana, June 9, 1996, original orange/green paint scheme. Other subject classes: Locomotive

Great Northern 149 (part of the Burlington Northern since March 1, 1970), an Electro-Motive Division Type SW1200 at Whitefish, Montana, May 16, 1970.

Great Northern Diesel Locomotive 13, Class SW7 in Whitefish, Montana, undated. Photograph by Wade Stevenson.

Great Northern depot at Whitefish, Montana, undated. Photograph by Stan Styles, from the Norm Keyes Collection.

Great Northern depot at Whitefish, Montana, undated. Photograph by Stan Styles, from the Norm Keyes Collection.

Great Northern depot at Whitefish, Montana, undated. From the Norm Keyes Collection.