Northern Pacific tunnel at Borup, Washington, in 1914. Old tunnel number 6, new bypass under construction, construction workers. Photo by Corey, J.M. Fredrickson collection.. Other Subject Classes: tunnel, construction workers, track

Northern Pacific bridge and tunnel at Grangeville, Idaho, circa 1910. Colorized postcard view of timber truss bridge, timber tunnel mouth, steam locomotive emerging. J.M. Fredrickson collection. Other Subject Classes: tunnel, bridge, steam locomotive

Northern Pacific tunnel at Hoppers, Montana, May 23, 1952. Looking toward two-track tunnel in process of being daylighted, mainline being single-tracked. Photo by J.M. Fredrickson. Other Subject Classes: tunnel, track

Northern Pacific tunnel at Hoppers, Montana, May 23, 1952. Two-track tunnel in process of being daylighted, mainline being single-tracked. Photo by J.M. Fredrickson. Other Subject Classes: tunnel, track

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 tracks at Martin, Washington, in February 1945. Track and buildings, east portal of Stampede Tunnel, in snow. Photo by J.M. Fredrickson . Other Subject Classes: track, town scene, tunnel

Northern Pacific Union Station at Tacoma, Washington, circa 1911. Looking down north ramp, horse-drawn express wagon and motor truck climb toward street. J.M. Fredrickson collection. Other Subject Classes: station, wagon

Northern Pacific Union Station at Tacoma, Washington, circa 1911. Looking down north ramp, horse-drawn express wagon climbs toward street, onlookers watch on sidewalk. J.M. Fredrickson collection. Other Subject Classes: station, wagon, people

Northern Pacific Union Station at Tacoma, Washington, circa 1915. Looking toward station from south at track level showing stub tracks, platform sheds, coach yard. Minnesota Historical Society. J.M. Fredrickson collection. Other Subject Classes: station, railroad yard

Northern Pacific Union Station at Tacoma, Washington, circa 1911. Interior of concourse waiting area. J.M. Fredrickson collection. Other Subject Classes: station