Little Pass Creek, Swampy Pass, and Lowline Loop
Little Pass Creek, Swampy Pass, and Lowline Loop
4.9
(9218)
11,351
hikers
05:40
19.6km
510m
Hiking
Hike the difficult 12.2-mile Little Pass Creek, Swampy Pass, and Lowline Loop in Gunnison National Forest, featuring aspen groves and Castle
Last updated: February 26, 2026
Tips
Your route passes through protected areas
Please check local regulations for:
West Elk Wilderness
Gunnison National Forest
Waypoints
Start point
Parking
Get Directions
1.44 km
Highlight (Segment) • Trail
Tip by
11.5 km
Highlight (Segment) • Natural
19.6 km
End point
Parking
Way Types & Surfaces
Way Types
17.4 km
2.22 km
< 100 m
Surfaces
11.8 km
7.76 km
< 100 m
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Elevation
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Weather
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Today
Friday 10 July
23°C
8°C
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Additional weather tips
Max wind speed: 14.0 km/h
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This route was planned by komoot.
The loop is located near Crested Butte, Colorado, within the scenic "Castles" area and the West Elk Wilderness, close to Ohio Pass. While specific parking details aren't provided, trailheads in this region typically have designated parking areas. It's always a good idea to check local forest service resources for the most current access information.
Yes, trails in the West Elk Wilderness and Gunnison National Forest generally allow dogs. However, always ensure your dog is under control, preferably on a leash, to protect wildlife and ensure a pleasant experience for all hikers. Please practice Leave No Trace principles and pack out all waste.
The best time to hike this loop is during the summer for abundant wildflowers and in the fall for spectacular golden aspens, especially around the Ohio Pass zone. The fall foliage is a major highlight. Summer offers good opportunities for wildlife viewing due to less foot traffic.
Generally, day hiking in the Gunnison National Forest does not require specific permits or fees. However, regulations can change, and certain activities or overnight stays might require permits. It's always best to check the official U.S. Forest Service website for the Gunnison National Forest before your trip for the most up-to-date information on any potential fees or regulations.
No, this loop is considered a substantial and difficult hike. While individual sections like a shorter "Swampy Pass to Viewpoint" might be easier, the full loop is approximately 14 to 14.5 miles long with significant elevation changes, making it more suitable for experienced hikers.
The full loop is estimated to take around 5 hours and 40 minutes of moving time, but plan for a full day, especially considering breaks, photo opportunities, and the challenging terrain. The total duration for this 19.6 km (12.2 miles) hike is approximately 20408 seconds, which is about 5 hours and 40 minutes.
You can expect incredibly diverse and picturesque scenery. The trail winds through beautiful aspen groves and open meadows, offering stunning panoramic views of the Anthracites and the iconic Castles rock formations. You'll also pass through the Little Pass Creek wetlands and experience the Swampy Pass Trail, known for its immediate views.
Due to less foot traffic, the area offers good opportunities for wildlife viewing. While specific species aren't guaranteed, you might spot deer, elk, various bird species, and other forest animals common to the Colorado Rockies. Always observe wildlife from a distance and do not disturb them.
Yes, this loop utilizes sections of several official trails. You'll hike along parts of the Little Pass Creek Trail, Swampy Pass Trail 439, Lowline Trail 438, and even some sections of the Braun Bypass Trail and Castle Creek Trail.
Yes, hikers should be aware that parts of the trail, particularly near the top of the Swampy Pass loop, can become difficult to follow and may even disappear. Be prepared for potential route-finding challenges and possibly some light bushwhacking in these areas. Carrying a reliable map or GPS device is highly recommended.
The terrain is varied and challenging. You'll traverse through beautiful aspen groves and open meadows, with significant elevation changes. Some sections are well-defined singletrack, while others, especially near Swampy Pass, can be faint or disappear, requiring careful navigation. Expect a mix of dirt paths, rocky sections, and potentially muddy areas, especially near the wetlands.
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