#11 Colorado Trails Vol. II Video: Volume II of the Colorado Trails begins at the Kelly Flats Trail near Ft. Collins, Colorado. Next the group traveled south to run The Mt. Blanca Trail near Alamosa. A few vehicles took the short cut through Medano Pass to reach the trailhead. Volume II finishes with a group of hard-core 4-wheelers running The Rattler Tail near Salida. The Rattler is another one of Colorado’s "tough trails." Here the vehicles work their way up a wash, one obstacle at a time. There are 12-15 vehicles on each trail including CJs, YJs, Broncos, Toyotas and full size trucks. If you like rock crawling, you’ll enjoy every minute of the video. 1997. Running time approximately 67 minutes.