You've seen the outside - what is it like on the inside of a UP Big Boy 4014 excursion? Come along on the RailGiants October 12, 2019 trip from West Colton to Barstow, CA in UP Heritage Fleet coach Sunshine Special. Get a good look at 4014 and the train prior to departure. The RailGiants excursion occupied the last 12 cars of the 23-car train beginning with dome coach Challenger. The first 11 cars were for UP personnel and were not accessible to the public.