Usually up the hill by the water tower, continuing on the logging trail. Then up to the old (radio tower?) footings at the top of the hill. Cruise down the far side & head up some more of the double track. Hang a right back onto the single track and either get lost swinging left (eventually working my way out) or hanging a right and getting less lost.
Rt. 15 to Allen Martin Drive, right on Allen Martin, left on Thompson Drive. Drive to end of pavement and park. Get off and ride!
http://www.singletracks.com/item.php?c=1&i=1411