Ptarmigan Loop Trail

This trail is generally classified as a black diamond difficulty, suitable for advanced mountain bikers due to its challenging nature and hard physical rating. Expect primarily singletrack with a relentless climb, especially at the beginning which is the roughest and steepest part. You might need to hike-a-bike in some sections. Further along, the terrain becomes smoother, winding through pine and aspen stands, and includes a couple of small stream crossings. The descent offers a fast-rolling experience with some tight switchbacks.

The Ptarmigan Loop Trail is approximately 12.2 kilometers (7.6 miles) long. Most riders can expect to complete the loop in about 1 hour and 50 minutes, depending on their pace and how often they stop to enjoy the views.

As you ascend, you'll be treated to stunning panoramic views of the Gore Range, as well as the Tenmile and Gore Ranges. Higher elevations offer vistas overlooking Lake Dillon, Frisco, and Silverthorne. On clear days, you might even spot distant peaks like Long's, Grey's, Torrey's, Quandary, and Holy Cross. Don't miss the Ptarmigan Peak Summit View and the 10 Mile Lookout Spot.

Specific parking information isn't detailed, but the trail is located near Silverthorne, Colorado. Look for designated trailhead parking areas in the vicinity. It's always a good idea to arrive early, especially on weekends, as it's a moderately popular trail.

Yes, dogs are allowed on the trail. Please ensure they are kept on a leash and that you clean up after them to preserve the natural environment for everyone.

The best time to ride the Ptarmigan Loop Trail is typically during the late spring, summer, and early fall months. The trail goes to the treeline, so snow can linger into early summer and return in late fall. Always check local conditions before heading out.

The Ptarmigan Loop Trail is located within the White River National Forest. Generally, there are no specific permits or fees required for day-use mountain biking on this trail. However, always check the latest regulations from the US Forest Service for any updates or specific rules regarding the White River National Forest before your visit.

The trail can be ridden in both directions. However, be aware that the beginning section is described as a "relentless climb" and the "roughest and steepest part." Riding it in the direction that tackles this climb first means you'll be rewarded with a "fast rolling" descent later on.

Yes, the route also passes through sections of the CDT ilcST, CDT iiyST, Ptarmigan Pass Trail, Ptarmigan Peak Trail, Angler Mountain Trail, and Hyatt Ranch Connect Trail.

No, e-bikes are not permitted on the Ptarmigan Loop Trail.

While the trail climbs significantly, bikes are not permitted past the wilderness sign if you wish to reach the very top of Ptarmigan Peak. There is an optional hike to the summit from that point for those who want to continue on foot.