Roaring Fork Transportation Authority (RFTA) Share: Non-Profit: Organizations Visit Website Request Info 2307 Wulfsohn Road Glenwood Springs, CO 81601 (970) 384-4985 1-800-854-5588 About Us RFTA is the local transit agency that provides bus transportation from Rifle to Aspen. We also manage a large portion of the Rio Grande Trail. About Media Map About RFTA is the local transit agency that provides bus transportation from Rifle to Aspen. We also manage a large portion of the Rio Grande Trail. Media What's Nearby? Distance: 5 10 15 20 25 50 mi.