Great Northern diesel locomotive 729 an Electro-Motive Division Type GP7, at Bellingham, Washington leading southbound freight train; Mount Baker Plywood in background. Other subject categories: Locomotive-Diesel, Train-Freight

Great Northern diesel locomotive 729 an Electro-Motive Division Type GP7, at Bellingham, Washington leading southbound freight train; Mount Baker Plywood in background; boxcar Great Northern 2540 partially visible. Other subject categories: Locomotive-Diesel, Train-Freight

Great Northern Diesel Locomotive 729, undated. The photograph shows a freight train with 4 locomotives. Trailing locomotive is an Electro-Motive Division Type GP-9, Great Northern Class GP-9 painted in the original green and orange scheme. Other subject classes: Locomotive-Diesel, Train-Freight

Great Northern Diesel Locomotive 731, Class GP9 in Wenatchee, Washington, undated. Photograph by Wade Stevenson.

Great Northern Diesel Locomotive 731, undated. The photograph shows 5 locomotives. The lead locomotive is an Electro-Motive Division Type GP-9, Great Northern Class GP-9 painted in the original green and orange scheme. A portion of a turntable and roundhouse are visible in the background. Photograph by Robert W. Johnston. Other subject classes: Locomotive-Diesel, Roundhouse, Turntable

Great Northern Diesel Locomotive 732 at Wenatchee, Washington, June 8, 1968, Big Sky Blue paint scheme. Other subject classes: Locomotive

Great Northern Diesel Locomotive 732, Class GP9 in Wenatchee, Washington, undated. Photograph by Wade Stevenson.

Great Northern Diesel Locomotive 734 at Monroe, Washington, 1968, Big Sky Blue paint scheme. Other subject classes: Locomotive

Great Northern Diesel Locomotive 77 at Seattle, Washington on September 15, 1968. The photograph also shows locomotive number 83. The lead locomotive is an Electro-Motive Division Type SW-1, Great Northern Class SW-1 painted in the simplified green and orange scheme. Visible in the background is a portion of a Great Northern caboose and a Great Northern truck trailer on a flat car. Photograph by James Estes. Other subject classes: Locomotive-Diesel

Great Northern Diesel Locomotive 77 on August 24, 1969. The photograph shows an Electro-Motive Division Type SW-1, Great Northern Class SW-1. The locomotive is painted in the simplified green and orange scheme. Visible in the background is a portion of a roundhouse. Other subject classes: Locomotive-Diesel, Roundhouse