Yreka Western Railroad Alco S4 diesel locomotive number 1172 (construction number 81393, built in 1955) parked with sister 1171 at the engine facility in Yreka, California, on June 16, 1978. Photo by J.M. Fredrickson. Other Subject Classes: diesel locomotive , switching locomotive.

Yreka Western Railroad Alco S4 diesel locomotive number 1172 (construction number 81393, built in 1955) parked with sister 1171 at the engine facility in Yreka, California, on June 16, 1978. Photo by J.M. Fredrickson. Other Subject Classes: diesel locomotive , switching locomotive.

Diesel locomotive WPRR 2317 with 'Tigard' name sign, Class GP39-2 at Wenatchee, Washington, undated. Other Subject Classes: Locomotive-Diesel

Diesel locomotive WPRR 2317 with 'Tigard' name sign, Class GP39-2 at Wenatchee, Washington, undated. Other Subject Classes: Locomotive-Diesel

White River Lumber Diesel Locomotive Number 618 at Enumclaw, Washington in May, 1975.

Weyerhaeuser Timber Company Baldwin diesel 103 at Burlington Northern Railroad's Hoyt Street Yard in 1978. Photograph by Alden Raney. Other subject classes: Locomotive-Diesel.

Weyerhaeuser Timber Company Baldwin diesel 103 at Burlington Northern Railroad's Hoyt Street Yard in 1978. Photograph by Alden Raney. Other subject classes: Locomotive-Diesel.

Weyerhaeuser Timber Company Baldwin diesel 103 at Burlington Northern Railroad's Hoyt Street Yard in 1978. Photograph by Alden Raney. Other subject classes: Locomotive-Diesel.

Weyerhaeuser Company Yard at Pe Ell, Washington in June 1975.

Empty log cars being switched in the yard at Pe Ell, Washington, in June 1975. Photo by J.M. Fredrickson. Other Subject Classes: log car, freight yard.