New Year's Day 1991 finds Amtrak's California Zephyr train No. 6 climbing the Mapleton Bench near Spanish Fork with freshly shopped and painted F40PH No. 353 in the lead.
A well tuned quartet of F40PH engines pull the California Zephyr train No. 6 less than 10 minutes from its scheduled stop at Provo, Utah on May 15, 1989.