Great Northern Rail Diesel Car 2350 at Great Falls, Montana, undated. Photograph by Wade Stevenson.

Great Northern Rail Diesel Car 2350 at Great Falls, Montana, undated. Photograph by Wade Stevenson.

Great Northern Rail Diesel Car 2350 at Great Falls, Montana, undated. Photograph by Wade Stevenson.

Great Northern Rail Diesel Car 2350 at Great Falls, Montana, undated. Photograph by Wade Stevenson.

Great Northern Railway 2002 at Great Falls, Montana. The locomotive is a General Motors Electro Motive Division Model GP20. Big Sky Blue paint scheme. Other subject classes: Locomotive, GP20

Great Northern Railway 2025 at Great Falls, Montana. The locomotive is a General Motors Electro Motive Division Model GP20. Big Sky Blue paint scheme. Other subject classes: Locomotive, GP20

Great Northern Railway 369-B at Great Falls, Montana. The locomotive is a General Motors Electro Motive Division Model F3B; renumbered from 267B in 1960. Other subject classes: Locomotive, P-3-7-AB

Great Northern Railway 370-A at Great Falls, Montana. The locomotive is a General Motors Electro Motive Division Model F7A; renumbered from 268A in 1960. Other subject classes: Locomotive, P-3-7-AB

Great Northern Railway 681 at Great Falls, Montana. The locomotive is a General Motors Electro Motive Division Model GP9. Big Sky Blue paint scheme. Other subject classes: Locomotive, GP-9

Great Northern Railway 722 at Great Falls, Montana. The locomotive is a General Motors Electro Motive Division Model GP-9. Other subject classes: Locomotive, GP-9