At about 3:45 p.m., mountain standard time, on January 13, 1997, Amtrak train No. 25, consisting of 3 locomotive units, 2 baggage cars, and 7 passenger cars, derailed the 2nd and 3rd locomotive units and all 9 cars near milepost (MP) 528.5 on the Union Pacific Railroad (UP) in Granite, Wyoming. The train was traveling at a recorded speed of 59 mph in 70-mph territory when the derailment occurred.
Twenty of the 109 passengers, 3 of the 12 on-board-service personnel, and 1 of the 5 operating crew members sustained minor injuries. The costs associated with the accident were $1,706,651.