On board Northern Pacific passenger train number 25, the westbound Vista-Dome North Coast Limited, west of Livingston, Montana, on June 8, 1955. Looking south from vista-dome toward Absaroka Range, climbing grade between Livingston and Muir. Photo by J.M. Fredrickson. Other Subject Classes: passenger train, mountains

On board Northern Pacific passenger train number 25, the westbound Vista-Dome North Coast Limited, west of Livingston, Montana, on June 8, 1955. Looking south from vista-dome toward Absaroka Range, climbing grade between Livingston and Muir. Photo by J.M. Fredrickson. Other Subject Classes: passenger train, mountains

On board Northern Pacific passenger train number 25, the westbound Vista-Dome North Coast Limited, climbing Rocky Mountains toward Homestake Pass near Welch, Montana, on June 8, 1955, with a view from the dome looking along train. Photo by J.M. Fredrickson. Other Subject Classes: passenger train, mountains

On board Northern Pacific passenger train number 25, the westbound Vista-Dome North Coast Limited, climbing Rocky Mountains toward Homestake Pass near Welch, Montana, on June 8, 1955, with a view from rear vista-dome looking toward front of train. Photo by J.M. Fredrickson. Other Subject Classes: passenger train, mountains

On board Northern Pacific passenger train number 25, the westbound Vista-Dome North Coast Limited, climbing Montana Rockies toward Homestake Pass on June 8, 1955, with a view from the dome looking toward rear of train just west of Spire Rock siding, east of Bridge 51, Milepost 50.8. Photo by J.M. Fredrickson. Other Subject Classes: passenger train, mountains

On board Northern Pacific passenger train number 25, the westbound Vista-Dome North Coast Limited, climbing Montana Rockies toward Homestake Pass, on June 8, 1955, with a view from the dome looking toward rear of train just west of Spire Rock siding, east of Bridge 51, Milepost 50.8. Photo by J.M. Fredrickson. Other Subject Classes: passenger train, mountains

On board Northern Pacific passenger train number 25, the westbound Vista-Dome North Coast Limited, climbing Montana Rockies toward Homestake Pass on June 8, 1955, with a view from the dome looking toward rear of train on Spire Rock viaduct, Bridge 51, Milepost 50.8. Spire Rock in distance. Photo by J.M. Fredrickson. Other Subject Classes: passenger train, bridge, mountains

On board Northern Pacific passenger train number 25, the westbound Vista-Dome North Coast Limited, climbing Montana Rockies toward Homestake Pass on June 8, 1955, with a view from the dome looking toward rear of train between Bridge 51 and Bridge 52. Photo by J.M. Fredrickson. Other Subject Classes: passenger train, mountains

On board Northern Pacific passenger train number 25, the westbound Vista-Dome North Coast Limited, descending the grade from Homestake Pass west of Highview, Montana, on June 8, 1955. Looking from rear vista-dome toward head end on curve. Photo by J.M. Fredrickson. Other Subject Classes: passenger train, mountains

On board Northern Pacific passenger train number 25, the westbound Vista-Dome North Coast Limited, descending the grade from Homestake Pass at Skones, Montana, on June 8, 1955. Looking from rear vista-dome toward head end on Skones viaduct, Bridge 63. Photo by J.M. Fredrickson. Other Subject Classes: passenger train, bridge, mountains