Amtrak resumed service at the historic Denver Union Station, starting with the scheduled 7:10 p.m. departure on Friday of the eastbound California Zephyr to Chicago. The first westbound California Zephyr to use the landmark station left Saturday.

Amtrak had been serving Denver passengers at a temporary location since 2011. This made way for the redevelopment of the historic building and construction of a new commuter rail station and underground bus concourse.

Renovation inside Union Station is not yet finished, so Amtrak passengers will access the waiting room, ticketing and baggage office by following signs to the track-side of the building.

From there, passengers will follow signs to the newly constructed passenger platform, under the large white canopy, where they will load and unload from Amtrak trains.

Access to the new Amtrak facility will be from the front of the building when construction is completed in July.