Union Pacific Railroad diesel locomotive number 3277 at Salt Lake City, Utah, in 1985. UP 3277 helps a freight near Salt Lake City in 1985. Photo by J.M. Fredrickson. Other Subject Classes: diesel locomotive, helper locomotive.

Union Pacific diesel switcher 1217 moving train number 6 at Salt Lake City, Utah on September 13, 1985. Photo by J.M. Fredrickson. Other Subject Classes: diesel locomotive, passenger train

Denver & Rio Grande Western Railroad steam locomotive 223 on display at Salt Lake City, Utah on September 13, 1985. Photo by J.M. Fredrickson. Other Subject Classes: steam locomotive

Denver & Rio Grande Western Railroad diesel locomotive 3117 at Provo, Utah on September 14, 1985. Photo by J.M. Fredrickson. Other Subject Classes: diesel locomotive

Denver & Rio Grande Western Railroad diesel locomotive 3106 and 3079 with a freight train at Provo, Utah in 1985. Photo by J.M. Fredrickson. Other Subject Classes: diesel locomotive

Amtrak passenger train number 6 at Provo, Utah on September 14, 1985. Photo by J.M. Fredrickson. Other Subject Classes: diesel locomotive, passenger train

Amtrak diesel locomotive 313 at Provo, Utah on September 14, 1985. Amtrak 313 and 367 lead train 6 at Provo in 1985. Photo by J.M. Fredrickson. Other Subject Classes: diesel locomotives, passenger train

Amtrak diesel locomotive 305 leads train number 26 at Salt Lake City, Utah on September 13, 1985. Photo by J.M. Fredrickson. Other Subject Classes: diesel locomotive, passenger train