Slickrock Trail,  Moab, Utah
The trail that made Moab the Mt.Biking destination in America; The Slickrock Trail sees more then 100,000 riders annually and provide its riders a thrilling ride through the erode Utah Environment. The 12 mile loops takes intrepid riders over landscape of sandstone dunes. The singletrack is arguably one of the more technical rides in the US and is no suitable of the novice riders.  The trail is full of short steep climbs and descents and will really work your legs out. Plan on taking a few hours (3-4) to ride the loop all the way around.

Porcupine Rim, Moab Utah
Love the Slickrock trail but want to get away from the crowds. Looking for a single track a little more challenging check out this awesome 15 mile loop in Moab, Utah. The Amazing views and vistas of the Castle Valley along this singletracks are breathtaking. This trail will truly test your ability and limits of every riders ability. It might turn out to be the best single track you will ever “Walk”. Be prepared, the ride/walk must be accompanied by a camera, because this will truly be a ride you will not want to forget.

Hawes Loop, Mesa, Arizona
This trail overlooks the city of Mesa and every view is spectacular. Looking to the west, the vast city of Phoenix and to the East the beautiful McDowell Mountains. To the North you see Red Mountain and the Salt River. Every vista is breathtaking and remarkable in every direction. For 12 miles you will be mainly traveling downhill so make sure your brake pads are in good condition, you will use them a lot. After the 5 mile trail ride, which ends on Power Rd, simply ride the road back to the car parked at the shopping center. If you consider yourself a skilled rider and would like a challenge, ride Hawes in the reverse order as described above. You will have to be a good rider in strong physical condition to master the trail ahead. An intermediate to skilled rider should allow 1 to 1.5 hours to complete. Take plenty of water and an extra tube. The desertscape can cause a flat in no time.

McKenzie River Trail, Eugene, Oregon
26 miles of amazing Northwest single track. The first 10 miles go thru a lava field making it the toughest part. Beyond there is a picnic area with water and smoother riding and easier. The whole ride is in old growth forest and the water is crystal blue. Waterfalls, pools and log bridges (walk across) and the forest make this the most fun and most beautiful ride I have ever done. Bring a camera. Difficulty is due to length, not climbs.

Weltham Trail, Fort Collins, Colorado
Waltham is an awesome 12 mile singletrack that offers a technical challenge for even the most experienced mountain biker. This is just one of many trails that are clearly marked in the Horsetooth Park 10 minutes from downtown Fort Collins. To access the trailhead, proceed up the service road (dirt and closed to traffic) and follow this for approximately 2 miles up the mountain. At this point the road ends and you can either loop back by turning right or turn left and continue up the ridge another 150 feet where you will intersect the Waltham trail. If you stay on the Waltham trail it will eventually loop back and drop you back on the service road you road up where you can either bomb down the road or take the really sweet technical singletrack that is next to the sitting bench .75 miles up the access road.

Rattlesnake Gulch, Boulder, Colorado
The Shortest Single track that has made our list but it is also one of the most fun quick trip rides you will ever find. Great scenery, especially at the overlook . It's a brute of a climb, hitting 20% grade regularly, but it's not that long. The trail is basically up to the rail road tracks, and then down. Do the loop counter clockwise as clockwise, the climb is steeper and has very loose rocks, making it tough. Careful on the downhill, as it's fast and there are plenty of steep trail sides.

Centennial Trail, Sturgis, South Dakota
Think you got it in you for a multi-day ride. This might be the one trail you cannot stay away from. This incredible trail is singletrack heaven for those who like to abuse themselves on bikes. Stretching from Bear Butte in the North at Sturgis and winding through the center of the hills for over 111 miles until it reaches Wind Cave National Park, this trail gives you an excellent opportunity to enjoy the great rides at Custer State Park, as well as the fast singletrack near Sheridan Lake, Pactola Lake and near the Black Hills National Cemetery and Bear Butte volcano to the North in Sturgis.

With elevation changes from 3,200 feet to 5,600 feet, this trail consists of exceptional rollercoaster sections, rugged climbs with loose rock, difficult descents, stream crossings, tight switchbacks, and some smooth portions of low prairie singletrack as well ones that wind quickly through beautiful pine trees. Rocks sticking out of the ground on this trail will require you to keep your eyes open as you zip through it. It does gets well traveled by the end of the season, so you'll even find sections where there are sand traps as well. Watch out for buffalo and elk on the trail near Custer State Park.

Sugarbottoms, Iowa City, Iowa
Think all there is in Iowa is Corn, Think again. This trail will give you an entire different view of Iowa. There are plenty of log hops and switchbacks to make this a good place to ride. The roots in the pine section can be painfull on the backside, so be prepared. You can easily ride the entire system without being too worn out. Just pick a starting point and go.

Alpine Tunnel Trail, St. Elmo, Colorado
This ride starts in the ghost town of St. Elmo.From here ride east on the you drove in on. Turn right on Hancock Road FSR 295. You are now on the historic Denver,South Park and Pacific railroad grade. After about six miles you enter the old townsite of Hancock. Cross the bridge look for Alpine Tunnel trail sign. On the lower part of the trail there are still alot of railroad ties left. It's amazing since the railroad has,t operated since 1910. The trail continues to the east portal. Just before the tunnel turn left on Continental Divide Trail. The next five miles is singletrack almost entirely above timberline. Climb a steeply for about 1/2 mile. When you come to a trail junction at top of ridge follow CDT to the right. Climb some more. From here you can see Tunnel Lake. The singletrack is difficult and rated expert. There are stream crossings and beautiful alpine meadows for several miles. One more climb, then a screaming downhill until you reach FSR267.1

Aqueduct Trail, Keystone, Colorado
Love skiing Keystone... you will love mt. biking it too. This is Summit County’s best 6 mile single track. Begin riding up Keystone Gulch Road. About 1/4 mile up Keystone Gulch there is a beaver pond shortly after the beaver pond there is a doubletrack on your right that crosses the creek turn right. You can either cross the creek here, or upstream about 50 yards there is afoot bridge. Follow the trail downstream. After a short distance the trail becomes obvious. The trail follows the aqueduct for 2.5 miles. There are some trails that take off to the right that go down to Keystone Ranch Road and Summit Cove so stay to the left on the main trail. You cross a couple of subdivision roads. At the end of the aqueduct the trail turns to the left uphill. The next few miles is nicely flowing singletrack. It doesn't get any better than this.