Great Northern Diesel Locomotives 2504 and 2519, Class U25B in Wenatchee, Washington, undated. Photograph by Wade Stevenson.

Great Northern Diesel Locomotives 472D and 446, Class F7 in Wenatchee, Washington, undated. Photograph by Wade Stevenson.

Great Northern Diesel Locomotives 472D and 446D, Class F7 in Wenatchee, Washington, undated. Photograph by Wade Stevenson.

Great Northern Diesel Locomotives 472D and 446D, Class F7 in Wenatchee, Washington, undated. Photograph by Wade Stevenson.

Great Northern Diesel Locomotives 721, Class GP9 and 464A, Class F7 in Wenatchee, Washington, undated. Photograph by Wade Stevenson.

Great Northern Diesel Locomotives 721, Class GP9 and 464A, Class F7 in Wenatchee, Washington, undated. Photograph by Wade Stevenson.

Great Northern Diesel Locomotives 724 and 731, Class GP9 in Wenatchee, Washington, undated. Photograph by Wade Stevenson.

Great Northern Diesel Servicing at Wenatchee, Washington, 1987. Photograph by George Werkema.

Great Northern electric locomotive 5000B, Class Z1 in Wenatchee, Washington, undated. Photograph by Wade Stevenson.

Great Northern electric locomotive 5010, Class Y1 in Wenatchee, Washington, undated. Photograph by Wade Stevenson.