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Routes
Hiking trails & Routes
United States
Colorado
Gunnison County

Fossil Ridge Trail

Moderate

5.0

(5666)

15,495

hikers

Fossil Ridge Trail

03:37

10.8km

550m

Hiking

The Fossil Ridge Trail offers a moderate hiking experience through a rugged landscape of granite and limestone peaks. You will cover 6.7 miles (10.8 km) and ascend 1800 feet (549 metres), typically completing the route in about 3 hours and 37 minutes. The trail winds through forests of pine, spruce,…

Last updated: April 23, 2026

Tips

Your route passes through protected areas

Please check local regulations for:

Fossil Ridge Wilderness

Gunnison National Forest

Waypoints

A

Start point

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1

5.38 km

Boulder Lake

Highlight • Lake

B

10.8 km

End point

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Way Types & Surfaces

Way Types

10.8 km

Surfaces

10.8 km

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Elevation

Elevation

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Weather

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Today

Friday 31 July

22°C

10°C

38 %

Additional weather tips

Max wind speed: 11.0 km/h

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Frequently Asked Questions

Where does the Fossil Ridge Trail start and where can I park?

The Fossil Ridge Trail is located within the Fossil Ridge Wilderness, near Crested Butte and Gunnison, Colorado. Specific trailhead parking information can vary, but generally, access points are found along roads leading into the wilderness area. As it's a wilderness area, facilities are minimal, so plan to park at designated trailheads. Always check local Forest Service resources for the most current access and parking details before your visit.

Is the Fossil Ridge Trail dog-friendly?

Yes, dogs are generally allowed on the Fossil Ridge Trail within the Fossil Ridge Wilderness. However, it's crucial to keep your dog on a leash at all times to protect wildlife and ensure a pleasant experience for all hikers. Please practice Leave No Trace principles by packing out all pet waste.

What is the best time of year to hike this trail?

The best time to hike the Fossil Ridge Trail is typically from late spring through early fall. During these months, the alpine lakes are accessible, and the weather is generally favorable. Fall offers particularly stunning scenery as the aspen forests turn golden. Winter hiking is possible but requires specialized gear and experience due to snow and challenging conditions.

Do I need a permit or pay an entrance fee for the Fossil Ridge Trail?

The Fossil Ridge Trail is located within the Fossil Ridge Wilderness, which typically does not require specific hiking permits or charge entrance fees for day use. However, if you plan an overnight backpacking trip, wilderness permits may be required. Always verify current regulations with the local Forest Service office before your trip, as rules can change.

What is the terrain like on the Fossil Ridge Trail?

The terrain on this trail is rugged and varied. You can expect single-track paths with rocky sections, occasional creek crossings, and beautiful scenic meadows. Some parts, especially when heading west to east, might start flowy through aspen trees before becoming consistently rocky with embedded boulders. The trail involves significant elevation gain, particularly in its first half, and requires sturdy shoes and good footing.

What can I see along the route?

The trail offers panoramic views of alpine peaks and lakes. A notable highlight along the route is Boulder Lake, a pristine alpine lake. You'll also traverse forests of pine, spruce, and aspen, which are particularly vibrant in the fall. The area is known for its diverse wildlife, including elk, mountain deer, and bighorn sheep.

Is the Fossil Ridge Trail suitable for beginners?

Given its moderate difficulty, significant elevation gain (around 548 meters), and rugged terrain with rocky sections, the Fossil Ridge Trail is generally not recommended for absolute beginners. Hikers should have good fitness, be sure-footed, and wear sturdy hiking shoes. There are easier trails in the broader region, but this specific route presents a good challenge for those with some hiking experience.

How long does it typically take to hike this trail?

The Fossil Ridge Trail, covering approximately 10.8 kilometers with about 548 meters of elevation gain, typically takes around 3 hours and 30 minutes to complete. This duration can vary based on your fitness level, the number of stops you make for photos or breaks, and trail conditions.

Does the trail intersect other well-known paths?

Yes, the route primarily follows the Fossil Ridge Trail (98% of the route) but also passes through sections of the Boulder Lake Trail 478.3A, Mill Lake Trail, South Lottis Trail, and Gold Creek Road. These intersections can offer opportunities for longer or alternative routes if you wish to explore more of the wilderness.

What wildlife might I encounter on the trail?

The Fossil Ridge Wilderness is home to diverse wildlife. Hikers on this trail might spot elk, mountain deer, and bighorn sheep. Keep an eye out for various bird species and smaller mammals. Always maintain a respectful distance and never feed wild animals.

Are there any specific safety considerations for this trail?

As an alpine wilderness trail, safety is paramount. Be prepared for rapidly changing weather conditions, including sudden thunderstorms. Carry plenty of water, appropriate layers of clothing, and navigation tools. Inform someone of your hiking plans. The rugged terrain requires attention to footing, especially on rocky sections and creek crossings. Bear spray is also recommended as a precaution in this wilderness area.

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