Mixed Train 2009! The first mixed train to run on the ARR in over three decades is crossing the Talkeetna spur road and beginning to slow for its scheduled station stop. Rising behind the train is the 20,320 ft summit of Mt. McKinley, the highest peak in North America. From head to rear this 2300+ ft train consists of 3 SD70MACs, 13 passenger coaches, 7 53 ft COFC flats, and 10 loaded tank cars of diesel fuel.