Union Pacific Railroad freight train speeds through Nebraska. June 1984.

This is yet another -Right Place / Right Time photograph. This photograph was taken out of a motorcoach window returning from a vacation to Yellowstone National Park in Northwestern Wyoming. While heading east through the State of Nebraska, I spotted this Westbound Union Pacific Railroad intermodal freight train. The last diesel unit, is a "Unique" EMD twin engined 6900 series "Centenial" diesel (EMD DD-40)
These engines were built between 1969 and 1971. These locomotives were unique, as the Union Pacific railroad owned the only ones. The engine seen here #6912, is rolling out it's final miles in revenue freight train service, just like the Steam locomotives did in the 1950's. Several of these unique , one of a kind diesel locomotives were donated to many Railroad Museums. The Union Pacific railroad currently uses locomotive #6936 in fantrip excursion service.