Ptarmigan Loop Trail

The Ptarmigan Loop Trail starts near Silverthorne, Colorado. The trailhead is typically accessed via a residential area. Parking is available at the trailhead, but it can fill up quickly, especially on weekends. Arriving early is recommended to secure a spot.

This route is rated as 'difficult' for jogging due to its significant elevation gain (748 meters) and steep sections. While some parts are runnable, it begins with a steep climb and features switchbacks closer to higher elevations. Beginners might find it challenging; however, a shorter run to the bench about two and a half miles in offers a good turnaround point.

The terrain varies, starting with a steep climb through a residential area and a large meadow. It then enters thicker pine-scented forests. As you ascend, you'll encounter both runnable sections and steeper parts, especially where switchbacks begin. The surface is generally packed dirt, but expect some rocky sections, particularly at higher elevations.

The best time to jog this trail is typically from late spring through early fall (June to October). During these months, the weather is generally more stable, and the trail is free of snow. Be aware that alpine environments can experience rapid weather changes, including thunderstorms, especially above the treeline.

Yes, dogs are generally allowed on this trail. However, they must be kept on a leash at all times to protect wildlife and ensure the safety of other trail users. Please remember to pack out all pet waste.

No, there is typically no entrance fee or permit required to access the Ptarmigan Loop Trail within the White River National Forest for day use. However, always check the latest regulations from the U.S. Forest Service before your visit, as rules can change.

This route offers several stunning views. You'll find a fantastic View of Lake Dillon from Ptarmigan Loop Trail. Higher up, the Ptarmigan Loop Trail Overlook provides expansive views of the Tenmile Range and Eagles Nest Wilderness. The Ptarmigan Loop Trail Junction is also a notable point along the way.

Yes, the route shares sections with several other trails. You will spend a significant portion on the CDT ilcST and CDT iiyST. It also briefly intersects with the Angler Mountain Trail, Ptarmigan Peak Trail, and Hyatt Ranch Connect Trail.

The trail passes through diverse habitats, including meadows and pine forests. You might spot various bird species, including the trail's namesake, the ptarmigan, especially at higher elevations. Deer, elk, and smaller mammals are also common in the area. Always maintain a respectful distance and do not feed wildlife.

Given the trail's high altitude (often above 10,000 feet), acclimatization is important to avoid altitude sickness. Rapid weather changes, including thunderstorms, are common, especially above the treeline where there's no cover. Carry plenty of water, sun protection, and layers of clothing. Inform someone of your plans before heading out.

There is no potable water available directly on the trail. It is essential to carry all the water you will need for your entire run. Plan for at least 1-2 liters per person, especially given the trail's difficulty and elevation.