This one, which starts in the Bookcliffs Parking lot North of town, is one of my all time favorites. It's not a tough ride, the climb is moderate, but it has a huge downhill payoff. Joe's is one takes you along a sharp ridge and has awesome views and fun downhill, and Kessel follows the bottom of a dry creekbed - it's like a roller coaster - pedaling optional, and a total blast.
Here's a great picture of Joe's Ridge - with my brother Mike on his way down.
Tell me that singletrack doesn't look like a blast. Go ahead. Try and deny it.
Here's the ride in MapMyRide.