Bike Snowmass is the Snowmass bike park, and consists of 3 downhill-only trails: Easy Rider (beginner), Vapor Trail (intermediate, beginning off the top of the Elk Camp Chairlift), and Valhalla (advanced). <br />
There are many other trails on Snowmass Mountain as well that are open for both hiking and two-way biking, including Village Bound, Nature Trail, Ditch Trail, Ridge Section, Sleighride, Expresso, Powerline, Sam's Knob Road, Stark's Trail, Connector, Luge, Burlingame, Thornton Road, Alpine Work Road, Big Burn Road, Cross Mountain, Elk Camp Road, Scorch, Anaerobic Nightmare, and Sequel.
Snowmass Village
http://www.singletracks.com/item.php?c=1&i=8638