2.6
(19)
53
hikers
06:05
19.7km
720m
Hiking
Hike the difficult 12.2-mile Lead King Basin Loop in White River National Forest, featuring the historic Crystal Mill and alpine views.
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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644 m
Highlight • Lake
Tip by
5.87 km
Highlight • Monument
Tip by
19.7 km
End point
Way Types & Surfaces
Way Types
18.6 km
706 m
251 m
< 100 m
< 100 m
Surfaces
19.6 km
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Elevation
Highest point (3,300 m)
Lowest point (2,620 m)
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Weather
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Sunday 10 May
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-1°C
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Additional weather tips
Max wind speed: 10.0 km/h
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This route was planned by komoot.
The Lead King Basin Loop is primarily a rugged dirt road that circumnavigates Sheep Mountain. Hikers can expect varied and demanding terrain, including rocky sections, narrow shelf roads, and switchbacks. The road is built on shale, which can become very slick when wet, and there are steep climbs and several stream crossings, especially in early summer.
The best time to experience the Lead King Basin Loop for hiking is typically from July to September. Snow can block sections of the road as late as July and reappear as early as October, so planning your trip within this window ensures more accessible conditions.
The loop offers spectacular scenery and historical points of interest. You'll pass by the iconic Crystal Mill, a famous Colorado landmark, and the beautiful Lizard Lake. The route also features views of the Maroon Bells-Snowmass Wilderness, high alpine meadows bursting with wildflowers in summer, and vibrant fall colors in areas with aspen trees.
No, the Lead King Basin Loop is generally considered difficult. It's a challenging loop and a long day hike, featuring steep sections, loose rock, and significant elevation gain. The altitude, ranging from approximately 8,680 to 10,920 feet, also adds to the physical challenge, making it unsuitable for beginner hikers.
Yes, the Lead King Basin Loop is located within the White River National Forest, which generally allows dogs. However, it's always best to keep your dog on a leash to protect wildlife and ensure a pleasant experience for all trail users. Please remember to pack out all pet waste.
Typically, day hiking on the Lead King Basin Loop within the White River National Forest does not require a specific permit or entrance fee. However, always check the latest regulations from the US Forest Service before your visit, especially if you plan to camp or access specific wilderness areas.
The Lead King Basin Loop is located near Marble, Colorado. Parking is generally available at various access points along the rugged dirt road that forms the loop. Specific trailhead parking areas may exist, but given its nature as a 4x4 road, many visitors park where convenient and safe along the route. Arriving early is always recommended during peak season.
When hiking in the White River National Forest, it's important to follow Leave No Trace principles: pack out everything you pack in, stay on marked trails, respect wildlife, and properly dispose of waste. Campfires may be restricted during dry periods, and specific regulations apply if you venture into the adjacent Maroon Bells-Snowmass Wilderness.
If you prefer to tackle the steepest sections early, consider starting the loop towards Lead King Basin first. The initial two miles in this direction are quite steep, followed by a more gradual climb to the peak around 4.5 miles. This can be a strategic way to manage the challenging elevation gain.
Yes, the Lead King Basin Loop intersects with and utilizes sections of several other paths. Notably, the route includes portions of the Lead King Basin Road, Lost Trail Road, and the Geneva Lake Trail. It also provides access to trailheads leading into the Maroon Bells-Snowmass Wilderness.
The basin is home to abundant seasonal wildflowers, especially in the high alpine meadows during summer, with August being a prime viewing month. You may also have opportunities for wildlife viewing, as the area supports various species typical of high-altitude Colorado environments.