4.7
(3213)
6,799
riders
02:23
19.7km
720m
Mountain biking
Tackle the moderate 12.2-mile Lead King Basin Loop mountain biking trail, featuring rugged jeep roads, alpine views, and the historic Crysta
Last updated: February 26, 2026
Tips
Your route passes through protected areas
Please check local regulations for:
Maroon Bells–Snowmass Wilderness
Waypoints
Start point
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5.92 km
Highlight • Monument
Tip by
19.7 km
End point
Way Types & Surfaces
Way Types
18.9 km
658 m
155 m
Surfaces
19.6 km
< 100 m
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Elevation
Highest point (3,300 m)
Lowest point (2,620 m)
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Weather
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Today
Sunday 17 May
11°C
2°C
67 %
Additional weather tips
Max wind speed: 9.0 km/h
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This route was planned by komoot.
The Lead King Basin Loop is located near Marble, Colorado. Parking is typically available at trailheads accessible from Marble, leading to FSR #315. Be aware that the road from Marble to FSR #315 traverses slick shale rock and should be avoided when wet.
Yes, the Lead King Basin Loop is considered dog-friendly. Always ensure your dog is under control and follow any local regulations regarding leashes, especially as it's a multi-use trail shared with hikers, runners, and horseback riders.
The trail is especially beautiful during late summer when wildflowers are abundant, and in the fall for vibrant colors. In early summer, be prepared for several large stream or river crossings. The trail can be challenging when wet due to slick shale sections.
The Lead King Basin Loop is located within the White River National Forest. Generally, there are no specific permits or entrance fees required for day-use mountain biking on this trail. However, always check the latest regulations with the US Forest Service for any updates, especially if planning dispersed camping.
The terrain is primarily unmaintained jeep roads (FSR #315 and #314), characterized by its rugged and rocky nature. Expect "steep rocky" sections, "serious bedrock and loose rock," and areas that are "very narrow and extremely rocky," particularly between Lead King and Crystal City. Initial climbs can be steep and gain elevation quickly.
This loop is generally rated as "Difficult" for mountain biking. It features challenging and rocky terrain, steep and sustained climbs, and the presence of loose rock and bedrock. Some sections are narrow shelf roads where passing can be difficult. While some descents are technical, you can choose to walk sections you find too challenging.
One of the most notable landmarks is the historic Crystal Mill, offering excellent photo opportunities. You'll also pass through the remnants of Crystal City ghost town and enjoy spectacular views of mountains, meadows, and canyons, with Snowmass Mountain providing a towering backdrop.
Yes, the route follows sections of several official trails. You'll find it intersects with parts of the Lead King Basin Road, Lost Trail Road, and the Geneva Lake Trail. It can also be combined with the west half of Devil's Punchbowl (Trail #27) to form a larger loop.
The trail is primarily unmaintained jeep roads, so conditions can vary. Expect rugged, rocky surfaces and potential stream crossings, especially in early summer. The road from Marble to FSR #315 has slick shale and should be avoided when wet. The trail is also shared with high-clearance 4x4 vehicles, indicating the demanding nature of the road surface.
The loop is renowned for its stunning scenery, bordering the Maroon Bells-Snowmass Wilderness. You'll experience majestic alpine landscapes, passing crystal-clear streams, towering mountain peaks, and lush fields of wildflowers. Fantastic mountain and valley views are a consistent feature for several miles of the loop.
No, due to its "Difficult" rating, rugged and rocky terrain, and steep climbs, the Lead King Basin Loop is not recommended for beginners. It requires a good level of mountain biking experience and technical skill.