Depot Days takes place at the Cheyenne Depot Sat & Sun, with exhibits and tours of the historic UP roundhouse and WASATCH RR Contractors. The Sherman Hill Model Railroad Show is at the Frontier Park Exhibition Hall, Fri-Sun. A trolley will escort people to and from the steam shop, with departures scheduled every 30 minutes from in front of the Depot. Union Pacific Steam Shop is open for public viewing. 307-632-3905.