5.0
(6455)
13,197
runners
00:46
6.08km
170m
Running
Jog the moderate 3.8-mile Swampy Pass Loop in Gunnison National Forest, featuring aspen groves and views of the Castles rock formations.
Last updated: February 26, 2026
Tips
Your route passes through protected areas
Please check local regulations for:
West Elk Wilderness
Gunnison National Forest
Waypoints
Way Types & Surfaces
Way Types
4.55 km
1.52 km
< 100 m
Surfaces
4.55 km
1.52 km
< 100 m
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Elevation
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Weather
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Today
Tuesday 19 May
7°C
-3°C
25 %
Additional weather tips
Max wind speed: 15.0 km/h
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This route was planned by komoot.
The Swampy Pass Loop is approximately 6 km (3.8 miles) long. For jogging, it generally takes around 45-50 minutes, but if you're hiking at a moderate pace, expect it to take about two hours to complete.
This loop is rated as moderate. While some sections are easy, it includes significant elevation changes (167 meters / 548 feet up) and can be challenging due to indistinct paths in places and around 10 stream crossings. It's generally best suited for experienced trail runners.
The trail winds through beautiful aspen groves and spruce trees, offering a mix of shade and sun. You'll encounter sections that can be hard to follow, requiring careful navigation, especially near the top. There are also numerous stream crossings, some of which may involve navigating over broken logs and partially submerged rocks.
The trail is beautiful in many seasons. For spectacular fall foliage, late September or early October is ideal. Wildflowers are abundant in the right season, typically summer. Always check local conditions before heading out, especially regarding snowmelt and stream levels.
Yes, the route offers stunning views of the surrounding 'Castles' rock formations and the Anthracite Range. You'll also enjoy picturesque aspen groves, spruce forests, and abundant wildflowers in season. The Swampy Pass Trail itself is a highlight.
Yes, dogs are generally allowed on trails within the Gunnison National Forest. However, they must be kept on a leash to protect wildlife and ensure a pleasant experience for all trail users. Always practice Leave No Trace principles and pack out all waste.
Typically, there are no specific permits required or entrance fees to access the Swampy Pass Loop or the general areas of the Gunnison National Forest for day use. However, it's always a good idea to check the official USDA Forest Service website for the most current regulations and any potential changes, especially if you plan to camp or engage in other activities.
Specific parking details for the Swampy Pass Loop are not widely publicized, suggesting it's a less-trafficked area. Access is generally from a trailhead near Crested Butte, Colorado. Look for designated parking areas at the start of the trail, which may be unpaved. As it's 'off the beaten path,' parking is usually straightforward but limited.
Given its location within the West Elk Wilderness and low human traffic, you have a good chance of encountering various wildlife. Keep an eye out for deer, elk, and a variety of bird species. Always maintain a respectful distance and never feed wild animals.
Yes, the route incorporates sections of several other trails. You will be on the Swampy Pass Trail 439 for a significant portion, and it also passes through parts of the Braun Bypass Trail and the Little Pass Creek Trail.
Be prepared for sections where the trail can be hard to follow or even disappear, especially near the top. Carrying a reliable navigation app or map is highly recommended. Also, with around 10 stream crossings, waterproof footwear and careful footing over potentially unstable logs and rocks will make your journey much more enjoyable.