Great Northern Railway 2507 at Whitefish, Montana. The locomotive is a General Electric Model U25B. Other subject classes: Locomotive, U25B

Great Northern Railway 2517 at Whitefish, Montana. The locomotive is a General Electric Model U25B. Other subject classes: Locomotive, U25B

Great Northern Railway 2542 at Whitefish, Montana. The locomotive is a General Motors Electro Motive Division Model U33C. Big Sky Blue paint scheme. Other subject classes: Locomotive, U33C

Great Northern Railway 3012 at Whitefish, Montana. The locomotive is a General Motors Electro Motive Division Model GP30. Other subject classes: Locomotive, GP-30

Great Northern Railway 3013 at Whitefish, Montana. The locomotive is a General Motors Electro Motive Division Model GP30. Other subject classes: Locomotive, GP-30

Great Northern Railway 3021 at Whitefish, Montana. The locomotive is a General Motors Electro Motive Division Model GP35. Other subject classes: Locomotive, GP-35

Great Northern Railway 3022 at Whitefish, Montana. The locomotive is a General Motors Electro Motive Division Model GP35. Other subject classes: Locomotive, GP-35

Great Northern Railway 3027 at Whitefish, Montana. The locomotive is a General Motors Electro Motive Division Model GP35. Other subject classes: Locomotive, GP-35

Great Northern Railway 3033 at Whitefish, Montana. The locomotive is a General Motors Electro Motive Division Model GP35. Other subject classes: Locomotive, GP-35

Great Northern Railway 3036 at Whitefish, Montana. The locomotive is a General Motors Electro Motive Division Model GP35. Other subject classes: Locomotive, GP-35