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

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

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