Northern Pacific Stampede Tunnel at Stampede, Washington, on December 2, 1967. View from cab of diesel locomotive at west portal of tunnel 3, tunnel vent equipment signal, electrical substation, in snow. Photo by J.M. Fredrickson . Other Subject Classes: tunnel, signal, mountains

Northern Pacific ventilation plant at Stampede, Washington, circa 1916. Ventilation equipment for clearing smoke from Stampede Tunnel, under construction, with workers. J.M. Fredrickson collection. Other Subject Classes: tunnel, construction workers

Northern Pacific Stampede Tunnel at Stampede, Washington, circa 1887. West portal and outbuilding during construction, mountain cleared over tunnel alignment. J.M. Fredrickson collection. Other Subject Classes: tunnel, mountains

Northern Pacific Stampede Tunnel at Martin, Washington, in 1943. East portal shrouded in smoke from train, station, train order signal, train order "pulpit," telltale. Photo by J.M. Fredrickson . Other Subject Classes: tunnel, station, train order stand, signal, telltale

Northern Pacific Stampede Tunnel at Martin, Washington, in 1943. East portal shrouded in smoke from train, train order signal, train order "pulpit," telltale. Photo by J.M. Fredrickson . Other Subject Classes: tunnel, train order stand, signal, telltale

Northern Pacific Stampede Tunnel at Martin, Washington, in 1943. Snowshed entance to east portal, in snow. Photo by J.M. Fredrickson . Other Subject Classes: tunnel, snowshed, mountains

Northern Pacific Stampede Tunnel at Martin, Washington, in 1943. View from top of snowshed entance to east portal looking toward station, outbuildings. Photo by J.M. Fredrickson . Other Subject Classes: tunnel, snowshed

Northern Pacific Stampede Tunnel at Martin, Washington, circa 1948. View from diesel locomotive cab toward east portal of tunnel, train order "pulpit." Photo by Max King, J.M. Fredrickson collection.. Other Subject Classes: tunnel, train order stand, track, mountain

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

Northern Pacific ski lodge at Martin, Washington, circa 1945. Photo by Don Grende, J.M. Fredrickson collection.. Other Subject Classes: ski lodge