The Roaring Fork Transportation Authority has been in operation since 1983, and functions as a Regional Transportation Authority. The RTA includes the communities of Aspen, Snowmass Village, Pitkin County, Basalt, a portion of Eagle County, Carbondale, Glenwood Springs and our newest member New Castle. RFTA provides commuter bus service from Aspen to Glenwood Springs (Roaring Fork Valley), Glenwood to Rifle (Hogback), intra city service in Aspen and Glenwood Springs, ski shuttle service to the four Aspen Skiing Company ski areas, Maroon Bells Guided Bus Tours, and a variety of other seasonal services. In 2016, RFTA carried over 5,100,000 passengers, with close to a million riders using RFTA's Bus Rapid Transit service, or BRT. RFTA uses Biodiesel fuel in all of its fleet of diesel power vehicles including our hybrid buses, and ethanol in our gasoline vehicles. The Roaring Fork Transportation Authority also manages the greatest portion of the Rio Grande Trail which runs from Glenwood Springs to Aspen, Colorado. The Rio Grande has 42 miles of continuous multi-use trail and is completely protected from vehicular traffic except at intersections. The Rio Grande Trail is a rails to trails project which is built in the Aspen Branch of the historic Denver and Rio Grande Western Railroad. Train operations in the corridor ceased in phases, between the 1960s and the mid 1990s.