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Routes
Hiking trails & Routes
United States
Colorado
Pitkin County

Lost Man Loop Trail

Easy

3.5

(19)

98

hikers

Lost Man Loop Trail

00:32

2.00km

30m

Hiking

Hike the easy 1.2-mile Lost Man Loop Trail to Lost Man Reservoir in White River National Forest.

Last updated: February 26, 2026

Tips

Your route passes through a protected area

Please check local regulations for:

White River National Forest

Waypoints

A

Start point

Parking

Get Directions

1

1.00 km

Lost Man Reservoir

Highlight • Lake

B

2.00 km

End point

Parking

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Way Types & Surfaces

Way Types

1.94 km

< 100 m

Surfaces

1.94 km

< 100 m

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Elevation

Elevation

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Weather

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Today

Saturday 30 May

6°C

-2°C

59 %

Additional weather tips

Max wind speed: 18.0 km/h

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This route was planned by komoot.

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Frequently Asked Questions

Is the Lost Man Loop Trail a true loop, and how long does it typically take to hike?

Despite its name, the Lost Man Loop Trail is not a true circuit. It's typically hiked as an 8.8-mile one-way traverse, which requires arranging a car shuttle between its two trailheads on Independence Pass. Alternatively, you can hike shorter out-and-back segments to destinations like Lost Man Pass or Lost Man Lake. The full traverse can take several hours, depending on your pace and stops.

What is the difficulty and terrain like on this route?

The trail is generally rated as moderate to difficult due to significant elevation changes and high alpine conditions. Starting around 11,500 feet, it ascends to Lost Man Pass at approximately 12,820 feet, involving a gain of about 1,290 feet. Expect steep sections, including a climb of 400 feet in just 0.3 miles to the pass, and potentially steep switchbacks through boulder fields on the descent. The terrain includes rocky shores, open grassland, subalpine meadows, alpine tundra, and even mossy forest with river crossings in lower sections.

What are the main scenic highlights along the way?

The route offers spectacular high alpine scenery. Key highlights include the shimmering waters of Lost Man Reservoir, the picturesque Lost Man Creek Valley often vibrant with wildflowers, and two beautiful alpine lakes: Lost Man Lake and Independence Lake. The highest point, Lost Man Pass, provides 'see forever views' of the Continental Divide, the Hunter-Fryingpan Wilderness, and the Collegiate Peaks Wilderness.

What is the best time of year to hike the Lost Man Loop Trail?

The best time to hike is typically from late June through September. Due to its high elevation, snow can persist in the upper reaches well into summer. Mid-summer offers vibrant wildflowers and generally more stable weather, though alpine conditions can change rapidly. Always check current trail conditions before heading out.

Are dogs allowed on the trail?

Yes, dogs are generally allowed on the Lost Man Loop Trail. However, as it is located within the White River National Forest and the Hunter-Fryingpan Wilderness, dogs must be kept on a leash at all times to protect wildlife and ensure a pleasant experience for all hikers. Please remember to pack out all pet waste.

Do I need a permit or is there an entrance fee for the White River National Forest?

There is typically no entrance fee or permit required to hike the Lost Man Loop Trail itself, as it is located within the White River National Forest. However, always check the latest regulations from the US Forest Service (usda.gov) for any updates, especially concerning wilderness area rules or fire restrictions.

Where can I park, and what are the trailhead access options?

The Lost Man Loop Trail has two main trailheads on Independence Pass, approximately 4 miles apart on Highway 82. Parking is available at both ends. If you plan to do the full 8.8-mile traverse, you will need to arrange a car shuttle between the two trailheads, as walking along Highway 82 is not recommended due to narrow roads and lack of shoulder.

What kind of wildlife might I encounter?

Given its high alpine environment, you might spot various wildlife. Hikers frequently report seeing marmots whistling among the rock fields. Mountain goats are also known to inhabit the alpine tundra sections of the trail. Keep an eye out for other high-country species, but always observe from a respectful distance.

Does this trail intersect with other paths?

Yes, the route primarily follows the Lost Man Loop Trail. Additionally, sections of the hike also pass along the Midway trail.

Are there opportunities for fishing along the route?

Yes, the trail offers fair to good fishing opportunities. You can try your luck in Independence Lake, Lost Man Lake, and Lost Man Reservoir. Always ensure you have the appropriate Colorado fishing license and are aware of any local regulations.

What should I pack for a hike on this trail?

Given the high elevation and variable alpine weather, pack layers of clothing, including a waterproof and windproof outer shell. Bring plenty of water, high-energy snacks, sun protection (hat, sunglasses, sunscreen), and sturdy hiking boots. A map and compass or GPS device are also recommended, along with a first-aid kit. Be prepared for sudden weather changes, even in summer.

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