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 rotary snow plow number 42 at Stampede, Washington, on January 19, 1972. Number 42 is assigned snow clearing duty between Eagle Gorge and Stampede with assistance from diesel locomotive 9758 (ex-Spokane, Portland, and Seattle F9), number 1921 and caboose number 10432. Photo by J.M. Fredrickson. Other Subject Classes: diesel locomotive, rotary snow plow, caboose.

Northern Pacific rotary snow plow number 42 at Stampede, Washington, on January 19, 1972. Number 42 is assigned snow clearing duty between Eagle Gorge and Stampede with assistance from diesel locomotive 9758 (ex-Spokane, Portland, and Seattle F9), number 1921 and caboose number 10432. Photo by J.M. Fredrickson. Other Subject Classes: diesel locomotive, rotary snow plow, caboose.

Northern Pacific rotary snow plow number 42 at Stampede, Washington, on January 19, 1972. Number 42 is assigned snow clearing duty between Eagle Gorge and Stampede with assistance from diesel locomotive 9758 (ex-Spokane, Portland, and Seattle F9), number 1921 and caboose number 10432. Photo by J.M. Fredrickson. Other Subject Classes: diesel locomotive, rotary snow plow, caboose.

Northern Pacific rotary snow plow number 42 at Stampede, Washington, on January 19, 1972. Number 42 is assigned snow clearing duty between Eagle Gorge and Stampede with assistance from diesel locomotive 9758 (ex-Spokane, Portland, and Seattle F9), number 1921 and caboose number 10432. Photo by J.M. Fredrickson. Other Subject Classes: diesel locomotive, rotary snow plow, caboose.

Northern Pacific rotary snow plow number 42 at Stampede, Washington, on January 19, 1972. Number 42 is assigned snow clearing duty between Eagle Gorge and Stampede with assistance from diesel locomotive 9758 (ex-Spokane, Portland, and Seattle F9), number 1921 and caboose number 10432. Photo by J.M. Fredrickson. Other Subject Classes: diesel locomotive, rotary snow plow, caboose.

Northern Pacific rotary snow plow number 42 at Stampede, Washington, on January 19, 1972. Number 42 is assigned snow clearing duty between Eagle Gorge and Stampede with assistance from diesel locomotive 9758 (ex-Spokane, Portland, and Seattle F9), number 1921 and caboose number 10432. Photo by J.M. Fredrickson. Other Subject Classes: diesel locomotive, rotary snow plow, caboose.

Northern Pacific rotary snow plow number 42 at Stampede, Washington, on January 19, 1972. Number 42 is assigned snow clearing duty between Eagle Gorge and Stampede with assistance from diesel locomotive 9758 (ex-Spokane, Portland, and Seattle F9), number 1921 and caboose number 10432. Photo by J.M. Fredrickson. Other Subject Classes: diesel locomotive, rotary snow plow, caboose.