North of Iowa City and North Liberty, the Sugar Bottom Recreation Area at Coralville Lake has 12 miles of trails divided into of two courses known as the Sugar Bottom Mountain Bike Trails. The North side offers rapid rollercoaster riding on smooth, packed soil. Only one really good climb on this side, but enough up and down action to keep the heart racing. The South side has more long climbs and twisting descents. Lots of shortcuts make this trail extremely versatile. Exits allow you to shorten your ride or complete the entire 12 mile lap. A smooth riding surface and lots of small hills make this a high speed, very enjoyable trail.
To reach the trailhead from Iowa City, turn right in North Liberty on County Road F28. Cross the reservoir and immediately look for signs on the right for Sugar Bottom Recreational Area. The Sugar Bottom Mountain Bike Trails trailhead is near the beach, next to the Frisbee golf course.
Note: These trails are maintained by the Iowa Coalition Of Off Road Riders (ICORR). For membership information, contact them at (319) 626-1160.
Overall, Sugar Bottom Recreation Area is the 5th most popular mountain bike trail of all 10 mountain biking rides in Iowa.