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Smuggler-Hunter-VanHorn-Hobbit-Secret-Sunnyside Loop Ride

 4.3 (43)

A grand tour combining many of Aspen's best backyard singletrack trails.

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10,071' 3,070 m


7,724' 2,354 m


3,015' 919 m


3,057' 932 m



Avg Grade (4°)


Max Grade (21°)

Dogs Unknown

E-Bikes Unknown


This long ride provides plenty of climbing and plenty of descending through open meadows, dark timber forests, aspen groves, and red rock shrub oak. Much of the climbing takes place on dirt roads, but nearly all of the descending takes place on high quality singletrack. Much of the riding is intermediate level, although the the epic conclusion - the Sunnyside trail - should be considered difficult (at least) given sections where the narrow trail traverses extremely steep terrain, and rocky and rooted sections demand your fullest attention.

Need to Know

This is a big ride that allows for true backcountry experiences. If unfamiliar with the area, be sure to bring a map or the MTB Project mobile app. Cell phone service disappears at the farthest reaches. There are many options along this route to add mileage, or to cut the ride short and coast back down to Aspen.


Start at the base of Smuggler Mt. Road. Climb up the road to the Smuggler Observation Deck where you'll find an information kiosk and map. At this point you could increase the ride length by continuing on BTS, Tootsie Roll, Lollipop, and Iowa Shaft trails. Main route continues to the left on the Hunter Creek Cutoff trail, which will take you all the way to the Hunter Creek Trail on the HC valley floor. (Note that this Cutoff trail requires a left hand turn towards the end, to avoid continuing on the Hunter Valley North trail.)

Make a right on the HC trail, and follow it for several hundred yards before making left to cross over the 10th Mountain Bridge. After crossing the Hunter Creek via the bridge, this route takes the trail to the left, which connects to the Parking area at the WRNF boundry. (This parking area is signed for handicap and senior parking only, and is not typically used by mountain bikers.) You could optionally take the trail to the right, and then take a left on the Hunter Valley North trail, this will get you back on the same route.

From the Parking area, start climbing Red Mountain Rd., this 4wd dirt road climbs up to the 4 Corners and Van Horn Park areas, and beyond. It's steep on occasion, and shade is very limited during middle of the day, so make sure to have plenty of water. During this climb, you'll pass by trailheads for Upper Plunge (on the left), and Lower Plunge (on the right). These are signed by the WRNF as "Sunnyside" trail, but that is somewhat confusing as you won't really get to Sunnyside trail proper until much later.

Still climbing, you'll encounter a fork in the jeep road. Left continues up to 4 Corners. This route goes right towards Van Horn Park. After the fork you'll pass through a flat meadow for a couple hundred yards. At the end of the meadow, the road continues steeply up to Van Horn Park. This route leaves the road, and makes a right to follow the Hunter Creek (Overlook) trail. A short climb will break you out to a steep hill side that offers sweeping views of the Hunter Creek valley below. Watch out for a technical rock feature at this point. The singletrack continues traversing and climbing this hillside, eventually opening to a meadow on the backside of Van Horn Park. When the singletrack ends, make a left on the old jeep road to continue this route. (The road to the right continues for quite a distance to the Wilderness boundary - save that exploration for another day.)

A gentle climb on the jeep road will bring you to a four way intersection that's considered the center of Van Horn Park. From here, this route will make a right to find the Hobbit trail. You could continue straight and descend back down to Red Mt. Rd. if you need a quick exit for thunderstorms. You could also make a left and climb up a quarter mile to experience big views from VHP's high point.

You'll find the signed Hobbit trail within a hundred yards of the four way intersection. A gruelingly steep climb through aspen trees will get you to a high point where the real fun begins! From here it's a super sweet descent to 4 Corners, with a few short ups along the way.

At 4 Corners, find the direction that will take you towards Red Mt. and the FAA antennae structure. A hundred yards later, make a left onto the signed Secret Trail.

Secret trail briefly coincides with Upper Plunge. Make a right, then a left to continue on Secret trail. This segment is also called Jedi trail. Rolling terrain and excellent descending takes you to the Sunnyside trail.

Make a left onto Sunnyside trail. A bit more climbing will take you onto a big traverse of the face of Red Mountain. This is one of the best trails in the area, but keep in mind it's expert level rating.

A very long descent, fast and smooth at times, slow and technical at others, with one paved road crossing (Careful!) will deposit you down to the paved Rio Grande trail. Make a left to get back to Aspen.


Shared By:

Mike Pritchard

Trail Ratings

  4.3 from 43 votes


in Aspen


  4.3 from 43 votes
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5 Views Last Month
13,338 Since Jun 8, 2013



Topping out after the steep climb from Van Horn Park on the Hobbit Trail!
Oct 7, 2015 near Aspen, CO
Looking downvalley from the Hunter Creek Overlook trail.
Jun 8, 2013 near Aspen, CO
View from Red Mountain, traversing it's face on the Sunnyside trail.
Jun 8, 2013 near Aspen, CO
View of Aspen and beyond from Smuggler Observation Deck
Jun 6, 2013 near Aspen, CO
This is pretty mush the start of the huge descent down Sunnyside Trail.  In the distance, you can imagine where the trail traverses along the face of Red Mt. in the aspen groves, and where Shadyside Trail might be in the dark timber area.
Oct 7, 2015 near Aspen, CO
Rider on the Hobbit Trai.
Jun 8, 2013 near Aspen, CO


Current Trail Conditions

All Clear 13 days ago
Add Your Check-In


Aug 6, 2022
Patrick Healy
Sep 19, 2021
Clint Hobbs
The Decent was sweet as well as hobbits. You can cut the entire first 1000 ft out of the climb and park at a different lot. Overall Epic ride! 18.6mi — 5h 19m
Sep 6, 2021
Rafael Hansen
Great ride. Lot's of single tracks, really fun. The way down overlooking the airport is amazing (and really hard - lot's of rocks). — 3h 00m
Aug 14, 2021
Rob Levy
Awesome 18.6mi
Jul 30, 2021
Scott Tesoro
Added BTS, Tootsie Roll. Of course took Hummingbird. After the rain we've been having, it's in fantastic shape. Flowers galore and no people. — 3h 15m
Jun 5, 2021
peter fell
Jul 2, 2020
Bree Buckley
Jun 30, 2020
Juan Vergara