Union Pacific called its dome-equipped passenger trains Domeliners. George W. Hamlin collection Passengers enjoy a Burlington Vista Dome on one of the railroad’s advertisements.

After years of negotiations, Union Pacific Railroad has given Metra an ultimatum: Compromise on fees to use UP tracks or face ...

Gov. Jared Polis and Union Pacific Railroad President Beth Whited signed a 25-year lease agreement for passenger rail access through the Moffat Tunnel Monday, providing a route for regular train ...

Colorado state officials and the Union Pacific Railroad reached a tentative agreement on the future of the 100-year-old Moffat Tunnel — and, in the process, set the stage to expand passenger ...