D Line (RTD)

D Line (RTD)

The D Line—also referred to as the Green Line, because green is the line's color on maps—is a light rail line which is part of the light rail system operated by the Regional Transportation District in the Denver-Aurora Metropolitan Area in Colorado. The line was the first line in the system since it opened in 1994 from downtown Denver to I-25 and Broadway as the Central Corridor. It was extended along the Southwest Corridor in July 2000. Until the Central Platte Valley Spur opened on April 5, 2002, this line had no letter or color designation.

The D Line's northern terminus is in Five Points northeast of downtown Denver. It goes through downtown, running southwest along Welton Street, then going up 19th Street. On trips leaving downtown, the line goes along Stout Street and 14th Street; on trips from Littleton, the line runs along California Street. Then the line follows Stout Street and Colfax Avenue, and follows a railroad right-of-way, where it joins with the C Line at 10th/Osage Station. They run in tandem until they reach their southern terminus at Mineral Avenue in Littleton.