High Quality Content by WIKIPEDIA articles! Union Station is Denver, Colorado, USA's historic train station at 17th and Wynkoop in the LoDo district. The station first opened in 1881. Denver's first train station was constructed in 1868 to serve the new Denver Pacific Railway, which connected Denver to the main transcontinental line at Cheyenne, Wyoming. By 1875, there were four different railroad stations, making passenger transfers between different railroad lines inconvenient. To remedy this issue, the Union Pacific Railroad proposed creating one central "Union Station" to combine the various operations. In February 1880, the owners of the four lines (the Union Pacific, the Denver & Rio Grande Western, the Denver, South Park & Pacific, and the Colorado Central) agreed to build a station at 17th and Wynkoop Streets. Architect A. Taylor of Kansas City was hired to develop the plans, and the station opened in May 1881.