Nice mix of single track climbs, with technical side tracks. There is fun to be had from the beginner to the Expert. Get a summit trail map and make your own day!
Take the road from Dillon to Keystone. At the traffic lights turn left to Summit Cove. Find the trailhead parkinglot at Royal Coachman. Park and ride!<br /><br />This trail hooks up with many other trails, eg the Colorado trail. You can ride this after work or spend a day in the saddle.
http://www.singletracks.com/item.php?c=1&i=1760