Cirque du Summit

This is a demanding ride, and most experienced mountain bikers should plan for at least 6 hours to complete the entire loop. Its length and elevation changes contribute to its strenuous nature.

The route offers diverse terrain. Approximately 75% (about 35 miles) consists of singletrack, with the remaining sections including paved roads, bike paths, and dirt roadways. You'll encounter everything from moderate climbs and technical rock gardens on the Peaks Trail to steep, loose descents near the Old Dillon Reservoir, and rolling, 'buff' surfaces on the Oro Grande Trail.

The Cirque du Summit offers constantly changing and spectacular scenery. You'll enjoy panoramic views of the Tenmile Range and the Continental Divide, impressive perspectives of the Dillon Reservoir, and diverse forests of lodgepole pine, sagebrush, and aspen. The route also passes through the towns of Breckenridge, Frisco, Silverthorne, Dillon, and Keystone Resort, and includes the scenic Dillon Reservoir Recpath.

While specific regulations can vary by segment, generally, dogs are allowed on many trails in the White River National Forest, including parts of this route. However, they must be kept on a leash. Always check local signage for specific rules, especially in developed areas or sensitive wildlife habitats.

The Cirque du Summit route primarily traverses trails within the White River National Forest. Generally, there are no specific permits or entrance fees required for mountain biking on these public lands. However, some sections might pass through areas with specific regulations, so it's always good to check with the local Forest Service office for any current advisories or changes.

The best time to ride this trail is typically from late spring to early fall, roughly June through September, when the snow has melted and the trails are dry. Always check current trail conditions before heading out, as weather in the mountains can change rapidly.

Since this is a large loop connecting multiple towns, you have several parking options. Common starting points include Breckenridge, Frisco, or Dillon, all of which offer public parking. Starting in Breckenridge is a popular choice, but you can begin at any point along the loop that offers convenient parking.

Yes, the route ingeniously interconnects several major trail networks. You'll find yourself on sections of the Great Divide Mountain Bike Route, TransAmerica Trail (Colorado), Peaks Trail, Dillon Reservoir Recpath, Oro Grande Trail, and the Colorado Trail, among others.

Yes, one of the notable aspects of this route is that it passes through four distinct towns: Breckenridge, Frisco, Silverthorne, and Dillon. These towns offer ample opportunities to refuel at cafes or restaurants, seek mechanical assistance at bike shops, or simply socialize. Some services might require slight detours from the main route.

The Cirque du Summit is classified as a 'hard' mountain bike ride due to its extensive length (approximately 46.6 miles or 75 km) and significant elevation changes (over 1200 meters up and down). It demands very good fitness and advanced riding skills, though it doesn't feature consistently 'wicked-steep climbs.' Some sections may require pushing your bike.

Given the length and challenging nature of this ride, it's crucial to be well-prepared. Bring plenty of water and snacks, essential bike repair tools (spare tube, pump, patch kit), appropriate layers of clothing for changing mountain weather, sun protection, a first-aid kit, and a reliable navigation device with the route loaded. Wayfinding skills are important, especially between the Old Dillon Reservoir and Aqueduct trails.