The trail goes north approx 4.5 miles, connects to a loop about 3 miles diameter, and then you head back on the same 4.5 mile trail. Incredible flowing switchbacks, fast descents, and a beautiful rock cliff overlook that you ride along for about 200 yards. Don't look down!
Ride 2 miles West of town to the Whitefish Trail trailhead
http://www.singletracks.com/item.php?c=1&i=4792