Location: Hill City, SD Black Hills Central Railroad P.O. Box 1880 Hill City, SD 57745 Telephone: (605)574-2222 At the Black Hills Central Railroad in Hill City, SD, they have a CB&Q train order semaphore on display next to the depot in Hill City. Steam excursions depart Hill City and Keystone, SD for a 2 hour round trips. Reservations advised. Information thanks to Ryan Swanson.