One third of the Union Pacific’s roster of Alco Century 855’s, number 61, is on the move westbound, having topped off its 4,000-gallon fuel tank at North Platte. On October 2, 1966, the 5,500-... (more)

North Platte, Nebraska, was and remains the place to sample everything old and new running on the Union Pacific. On October 2, 1966, the new included Alco Century 855 61, parked at the fuel rack j... (more)

One of three Alco C855 built for the UP, two A's and one B. Here is one of them handling a train through Nebraska. These units put out 5500 hp versus EMD's and GE's offering of 5000 at the time. T... (more)

Alco's largest diesel engine. Only two A's and one B unit were built. All for UP. This loco had an output of 5500 hp which could have given an edge over GE's 5000 hp U50 and EMD's DD35. But Alco's... (more)