3.0
(15)
57
runners
Lead King Basin Loop
02:38
19.7km
730m
Running
Prepare for a challenging jogging experience on the Lead King Basin Loop, a difficult route stretching 12.2 miles (19.7 km). As you navigate this trail, you will encounter diverse landscapes, from dense forests to expansive valleys and open mountain areas. The route offers panoramic views, especially between the four and seven-mile marks, providing a sense of the vast wilderness. You will also pass the iconic Crystal Mill, nestled beside a tumbling waterfall, a striking visual landmark. This demanding loop involves a significant elevation gain of 2380 feet (725 metres), typically taking around 2 hours and 38 minutes to complete.
When planning your visit to the Lead King Basin Loop, be mindful of the seasonal conditions, as they significantly impact trail accessibility. Snow can block parts of the route well into July and reappear as early as October. For the most reliable conditions, consider jogging this trail during August and September. If you choose to go earlier in the summer, be prepared for potential stream crossings and lingering patches of snow on the path.
The Lead King Basin Loop is situated within the expansive White River National Forest, an area renowned for its natural beauty and rugged terrain. This trail offers a unique opportunity to explore a region rich in mining history, with the Crystal Mill serving as a tangible link to the past. The diverse ecosystems you will traverse, from dense woodlands to high-alpine vistas, showcase the varied natural environment of this part of Colorado.
Last updated: April 23, 2026
Waypoints
Start point
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623 m
Lizard Lake
Highlight • Lake
Tip by
5.87 km
Crystal Mill
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
19.7 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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Today
Monday 11 May
18°C
7°C
0 %
Additional weather tips
Max wind speed: 11.0 km/h
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This route was planned by komoot.
Frequently Asked Questions
How difficult is the Lead King Basin Loop for jogging?
This loop is considered difficult for jogging due to its rugged terrain, significant elevation changes, and high altitude. It features unmaintained jeep roads with rocky sections, loose rock, and numerous switchbacks. It's more suited for experienced trail runners than casual joggers.
What is the terrain like on the Lead King Basin Loop?
The terrain primarily consists of unmaintained jeep roads (FSR #315 and #314) with rocky sections, loose rock, and steep inclines and declines. Some parts are narrow shelf roads with significant drop-offs, which can be particularly slippery when wet. Early in the summer, you might encounter large stream crossings and residual snow.
What notable sights will I see along the route?
The loop offers breathtaking alpine scenery and several historical landmarks. You'll pass by the famously photographed Crystal Mill, the historic Crystal City Ghost Town, and the Lead King Mine. You'll also enjoy panoramic mountain and valley views, especially between four and seven miles in, along with countless waterfalls and wooded glades.
What is the best time of year to jog the Lead King Basin Loop?
The ideal time to experience this trail is typically August and September. Snow can block sections as late as July and as early as October, making earlier or later visits more challenging due to snowmelt and stream crossings.
Where can I park to access the Lead King Basin Loop?
Specific parking details for the Lead King Basin Loop are not provided in the available data, but the trail is located near Marble, Colorado. It's advisable to research local parking options and trailhead access points in the Marble area before your visit.
Are there any permits or fees required for the Lead King Basin Loop?
The Lead King Basin Loop is located within the White River National Forest. While general access to the forest is usually free, some specific areas or activities might require permits or fees. It's recommended to check the official White River National Forest website for the most current information regarding any required permits or entrance fees for this specific area.
Is the Lead King Basin Loop dog-friendly?
The available information does not explicitly state whether the Lead King Basin Loop is dog-friendly or outline specific leash rules. As it's within the White River National Forest, dogs are generally allowed but typically require leashes. Always check current regulations with the forest service before bringing your dog.
What is the highest elevation reached on the Lead King Basin Loop?
The trail reaches a highest point of 10,892 feet (3,320 meters) and a low of 8,576 feet (2,614 meters). This high altitude contributes significantly to the trail's difficulty.
Does the Lead King Basin Loop intersect with other trails?
Yes, the route incorporates sections of several other paths. Notably, it follows parts of the Lead King Basin Road and the Lost Trail Road. You will also traverse smaller sections of the ADT - Colorado C - Q - Seg 5, Geneva Lake Trail, Lower Lead King Basin Road, Forest Road 315.2, Trail 1973, North Lost Trail 1967, and Avalanche/Silver Creek Trail 1959.
Is there a recommended direction to jog the Lead King Basin Loop?
If you start towards Lead King Basin first, the initial two miles of the loop are particularly steep. Considering this, you might find it strategically beneficial to plan your direction of travel to manage the steepest sections according to your preference and fitness level.
What should I know about sharing the trail with vehicles?
The Lead King Basin road is a well-known 4x4 route, meaning you will be sharing the path with off-road vehicles. Some sections are narrow shelf roads, making passing difficult and potentially dangerous. Always be aware of your surroundings and yield to vehicles when necessary.