R Line (RTD)
rail line in Denver

The R Line is a Regional Transportation District (RTD) light rail line that serves stations in Aurora, Denver, Greenwood Village, Centennial and Lone Tree, Colorado. The line began operation on February 24, 2017. During planning and construction, it was known as the I-225 Line. The line received its letter designation to reflect the letter Rs in "Aurora" and "RidgeGate". The line travels over newer and older portions of the RTD light rail system, and is the only line in the RTD rail system that does not serve downtown Denver. It is colored lime green on system maps.
The R Line's northern terminus is Peoria station in Aurora, and its southern terminus is Lincoln station in Lone Tree. As of 2026, service has been temporarily extended south of Lincoln to RidgeGate Parkway Station. This configuration will remain through the completion of the Downtown Rail Reconstruction Project, at which point the R Line terminus will return to Lincoln.
History
G Line (2006 - 2009)
November 17, 2006 saw the completion of the Southeast Corridor light rail project (part of the Transportation Expansion Project).
“R Line (RTD)” enters the record as rail line in Denver. Crown Archives preserves that source wording while asking what Line, rail and line can confirm, complicate or overturn.
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Named sources, stable identifiers and responsible institutions provide the strongest route from overview to verifiable evidence. The source revision retrieved here is dated Sep 23, 2026. The linked authority identifier is Q5515134. None of the 0 selected statements returned an explicit reference. The first chronological checks are 2017, 2026, 2006 and 2009.
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This entry incorporates text from “R Line (RTD)” on English Wikipedia. Contributors are listed in the page history. Text is available under the Creative Commons Attribution-ShareAlike 4.0 License. Selected authority identifiers and statements are retrieved from Wikidata under CC0; their references and qualifiers remain part of the verification path.