New Rail in New Neighborhoods. The N Line brings RTD train service through Denver, Commerce City, Northglenn, Thornton and north Adams County.

Important Safety Tips


Union Station to Thornton in 27 minutes

  • 6-9 a.m. and 3-6 p.m., Monday - Friday

    Service every 20 minutes during peak hours

  • During non-peak hours, every day

    Service every 30 minutes


Passengers on the N Line will travel on commuter rail vehicles, just as they will on the University of Colorado A Line, the B Line and the G Line. Commuter rail vehicles have level boarding at all doors of the train, travel up to 79 mph, have a total capacity of 170 people (including seating for 91 people), and have two wheelchair spaces per car. These trains also have larger seats, overhead storage, luggage towers and bicycle racks.

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Kate Williams