Northern Pacific Class Z-3 steam locomotive number 4011 leads a westbound freight train near Martin, Washington, circa 1925. Photo by J.A. Turner. Other Subject Classes: steam locomotive, freight train

Northern Pacific Class Z-3 steam locomotive number 4024 leads a westbound freight train toward Stampede Tunnel at Martin, Washington, circa 1925. Photo by J.A. Turner. Other Subject Classes: steam locomotive, freight train

Northern Pacific switchback at Stampede Pass, Washington Territory, circa 1887. Mainline, two levels of switchback, snowshed. Museum photo. J.M. Fredrickson collection. Other Subject Classes: track, switchback, snowshed, mountain

Northern Pacific tracks and buildings at Martin, Washington, circa 1950. View from diesel locomotive cab of mainline and yard, living quarters, east portal of Stampede Tunnel. Max King photo. Photo by Max King, J.M. Fredrickson collection.. Other Subject Classes: track, railroad yard, living quarters, tunnel, mountains

Northern Pacific tracks at Martin, Washington, circa 1920. Mainline and yard tracks, east portal of Stampede Tunnel and station building in distance, train order signal, outbuilding. J.M. Fredrickson collection.. Other Subject Classes: track, station, signal, tunnel

Northern Pacific tracks at Martin, Washington, circa 1920. Mainline and yard tracks, east portal of Stampede Tunnel and station building in distance, train order signal, outbuilding. J.M. Fredrickson collection. Other Subject Classes: track, station, signal, tunnel

Northern Pacific tracks at Martin, Washington, circa 1930. Mainline and yard tracks, east portal of Stampede Tunnel and station building in distance, outbuilding. R.B. Lewis photo, J.M. Fredrickson collection. Other Subject Classes: track, station, tunnel, mountains

Northern Pacific tracks at Martin, Washington, in February 1945. View down track toward east portal of Stampede Tunnel, in snow. Photo by J.M. Fredrickson . Other Subject Classes: track, tunnel, mountains

Northern Pacific transmission line at Martin, Washington, circa 1940. Pole line ran along Mosquito Creek and over the hill toward Stampede. Photo by Vormsberg, J.M. Fredrickson collection. Other Subject Classes: power line, mountains

Northern Pacific Stampede Tunnel at Martin, Washington, circa 1944. East portal and snowshed of tunnel, station, signal, outbuildings, in heavy snow. Photo by J.M. Fredrickson . Other Subject Classes: tunnel, station, signal