Great Northern Diesel Locomotive 259A at Carlton, Minnesota, September 10, 1966, ore train. Other subject classes: Freight train

Great Northern Diesel Locomotive 317A at Carlton, Minnesota, October 14, 1967, ore train. Other subject classes: Freight train

Great Northern Railway 259A at Carlton, Minnesota in 1966. Ore train at Carlton, Minnesota with General Motors Electro Motive Division F3-A number 259A. Other subject classes: F-3-7-AB , Locomotive

Great Northern Railway 312-C at Carlton, Minnesota. The locomotive is a General Motors Electro Motive Division Model F7A; seen in train of ore empties. Other subject classes: Locomotive, F-3-7-AB

Great Northern Railway 314-C at Carlton, Minnesota. The locomotive is a General Motors Electro Motive Division Model F7A; at head end of ore train. Other subject classes: Locomotive, F-3-7-AB

Great Northern Railway 317A at Carlton, Minnesota in 1967. Taconite train with General Motors Electro Motive Division F7A number 317A in lead at Carlton, Minnesota. Other subject classes: F-3-7-AB , Locomotive

Great Northern tower at Carlton, Minnesota, undated. Photograph by Robert Johnston, from the Norm Keyes Collection.