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 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

Burlington Northern tracks at Martin, Washington, in 1979. Looking down from mountain at tracks, station buildings. Photo by J.M. Fredrickson. Other Subject Classes: track, station, mountains

Burlington Northern tracks at Martin, Washington, in 1979. Looking down from mountain at tracks, station buildings. Photo by J.M. Fredrickson. Other Subject Classes: track, station, mountains

Burlington Northern tracks at Martin, Washington, in 1979. Looking down from mountain at tracks, station buildings, signal bridge. Photo by J.M. Fredrickson. Other Subject Classes: track, station, signal equipment, mountains