Somers Lumber Company Steam Locomotive Number 2 locomotive, Shay, at Somers, Montana, 1940.

Somers Lumber Company Steam Locomotive Number 4 at Somers, Montana, 1937. Photo by Ron Nixon.

Spokane International Railroad (SI) caboose C18 at Sandpoint, Idaho, undated. Other Subject Classes: Caboose

Spokane, Portland & Seattle Railway steam locomotive number 700 at Clark Fork, idaho, in October 2002. SP&S 700 crosses the bridge at Clark Fork Idaho with the westbound Montana Rockies Rail Tours excursion in October 2002. Photo by J.M. Fredrickson. Other Subject Classes: steam locomotive, passenger train, plate girder bridge.

Spokane, Portland & Seattle Railway steam locomotive number 700 at Hope, idaho, in October 2002. SP&S 700 leads the eastbound Montana Rockies Rail Tours excursion just west of Hope in October 2002. Photo by J.M. Fredrickson. Other Subject Classes: steam locomotive, passenger train, lake.

Spokane, Portland & Seattle Railway steam locomotive number 700 at Kootenai, idaho, in October 2002. SP&S 700 waits at Kootenai the evening before the start of the eastbound Montana Rockies Rail Tours excursion to Billings, Montana, in October 2002. Photo by J.M. Fredrickson. Other Subject Classes: steam locomotive, passenger train.

Spokane, Portland & Seattle Railway steam locomotive number 700 at Kootenai, idaho, in October 2002. SP&S 700 stages a runby at Kootenai for the passengers at the end of the westbound Montana Rockies Rail Tours excursion in October 2002. Photo by J.M. Fredrickson. Other Subject Classes: steam locomotive, passenger train.

St. Maries River Railroad Electro-Motive Division (EMD) GP-9 diesel locomotive number 101 leads the Bovill train at St. Maries, Idaho, in August 1981. Photo by J.M. Fredrickson. Other Subject Classes: diesel locomotive.

St. Maries River Railroad Electro-Motive Division (EMD) GP-9 diesel locomotive number 102 crosses a trestle near Santa, Idaho, on August 13, 1982. Photo by J.M. Fredrickson. Other Subject Classes: diesel locomotive , box car, log car.

St. Maries River Railroad Electro-Motive Division (EMD) SW1200 diesel locomotive number 501 hauls the Plummer Train across the Pedee Creek Bridge between Plummer and Benawah, Idaho, in August 1981. Photo by J.M. Fredrickson. Other Subject Classes: diesel locomotive, box car.

St. Maries River Railroad Electro-Motive Division (EMD) SW1200 diesel locomotive number 501 hauls the Plummer Train across the Chatcolet Lake Bridge at Chatcolet Lake, Idaho, in August 1981.Photo by J.M. Fredrickson. Other Subject Classes: diesel locomotive, box car.

St. Maries River Railroad Electro-Motive Division (EMD) SW1200 diesel locomotive number 501 hauls the Plummer Train, made up of box cars, at Plummer, Idaho, in August 1981. Photo by J.M. Fredrickson. Other Subject Classes: diesel locomotive, box car.

St. Maries River Railroad Electro-Motive Division (EMD) GP-9 diesel locomotives number 101 and 102 haul the Bovill train at Bovill, Idaho, in August 1981. Photo by J.M. Fredrickson. Other Subject Classes: diesel locomotive.

St. Maries River Railroad Electro-Motive Division (EMD) GP-9 diesel locomotives number 102 and 101 haul a train of two box cars and empty log cars near Mashburn, Idaho, on August 13, 1982. Photo by J.M. Fredrickson. Other Subject Classes: diesel locomotive, box car, log car.

St. Maries River Railroad Electro-Motive Division (EMD) GP-9 diesel locomotives number 102 and 101 haul a train of two box cars and empty log cars across a trestle near Santa, Idaho, on August 13, 1982. Photo by J.M. Fredrickson. Other Subject Classes: diesel locomotive, box car, log car.

St. Maries River Railroad Electro-Motive Division (EMD) SW1200 diesel locomotives number 501 and 502 haul a train of loaded log cars over a short bridge by the St. Joe River near Avery, Idaho, in August 1981. Photo by J.M. Fredrickson. Other Subject Classes: diesel locomotive, log train

St. Maries River Railroad Electro-Motive Division (EMD) SW1200 diesel locomotives number 501 and 502 haul a train of loaded log cars by the St. Joe River near Avery, Idaho, in August 1981. Photo by J.M. Fredrickson. Other Subject Classes: diesel locomotive, log train

St. Maries River Railroad Electro-Motive Division (EMD) SW1200 diesel locomotive number 501 and 502 haul a train of loaded log cars over a short bridge along the St. Joe River near Avery, Idaho, in August 1981. Photo by J.M. Fredrickson. Other Subject Classes: diesel locomotive, log train

St. Maries River Railroad Electro-Motive Division (EMD) SW1200 diesel locomotives number 501 and 502 haul a train of loaded log cars by the St. Joe River near Avery, Idaho, in August 1981. Photo by J.M. Fredrickson. Other Subject Classes: diesel locomotive, log train

St. Maries River Railroad Electro-Motive Division (EMD) SW1200 diesel locomotives number 501 and 502 haul a train of loaded log cars by the St. Joe River near Avery, Idaho, in August 1981. Photo by J.M. Fredrickson. Other Subject Classes: diesel locomotive, log train

St. Maries River Railroad Electro-Motive Division (EMD) SW1200 diesel locomotives number 501 and 502 haul a train of loaded log cars by the St. Joe River near Avery, Idaho, in August 1981. Photo by J.M. Fredrickson. Other Subject Classes: diesel locomotive, log train

St. Maries River Railroad Electro-Motive Division (EMD) SW1200 diesel locomotives number 501 and 502 haul a train of loaded log cars by the St. Joe River near Avery, Idaho, in August 1981. Photo by J.M. Fredrickson. Other Subject Classes: diesel locomotive, log train

St. Maries River Railroad Electro-Motive Division (EMD) SW1200 diesel locomotives number 501 and 502 haul a train of loaded log cars by the St. Joe River near Avery, Idaho, in July 1981. Photo by J.M. Fredrickson. Other Subject Classes: diesel locomotive, log train

St. Maries River Railroad Electro-Motive Division (EMD) SW1200 diesel locomotives number 501 and 502 haul a train of loaded log cars by the St. Joe River near Avery, Idaho, in July 1981. Photo by J.M. Fredrickson. Other Subject Classes: diesel locomotive, log train