"N Line at Thornton Gravel Ponds"
A RTD N Line Test Train heads south past the Thornton Gravel Ponds as seen from E74th Ave in Denver, CO. The "N Line" is RTD's newest commuter rail line which features 18.5 miles of new right-of-way, 9 new stations between Union Station & North Adams County, and 20-30 minute service headways. The first 13 miles (6 stations) is slated to open on September 21st, 2020.
