An SDP35, GP9B, U50, GP30 run by with what looks like a turbo fire in the U50. Flames are visible behind the cab. No photographer name on slide.
An 8500 hp gas turbine electric know as a Big Blow races with a mixed freight. No photographer name on slide.
A U50C, DD35, SD5 pull a freight past a snowy mountain scene in Utah. Photo taken by Keith Ardinger.
A UP U50C, SD24, U50C, and SP SD45, SD45T-2, SD45 pull a train through Echo Canyon Utah. No Photographer name on slide.
A UP DD35 along with a WP GP35 and UP SD40-2 roll past a quonset hut at North Platte. Photo taken by Mark R. Lynn.
A 5000 hp DD35 sits coupled to an SD45. Photo taken by Russell Eslick.
A UP Northern blasts past the station at Archer. No photographer name listed on slide.
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)
Four clean burning C30-7's and one smoking SD40-2 haul a coal train west through Green River, WY. Photo taken by J.H. Lemke.
A 4500 hp turbine electric speeds through Emkay, WY with a general freight. Photo taken by Jack Pfeifer.
An FEF4 Northern at speed rounding Brady curve with stock cars in tow. No photographer listed on slide.
An early challenger rounding the curve at Durham, WY. No photographer listed on slide.
Looks like a well used challenger. No photographer listed on slide.
An early challenger with what looks like a solid string of gondolas in tow. No photographer listed on slide.
An early challenger poses with ATSF stock cars in tow. No photographer listed on slide.
