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Routes
Hiking trails & Routes
United States
Colorado
Larimer County

Kelly Flats Road

Hard

3.2

(17)

22

hikers

Kelly Flats Road

05:13

17.0km

760m

Hiking

Kelly Flats Road is a difficult 10.6-mile hike in Colorado's Arapaho and Roosevelt National Forests, known for its rugged terrain and scenic

Last updated: February 26, 2026

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Your route passes through a protected area

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Waypoints

A

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Parking

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B

17.0 km

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Way Types & Surfaces

Way Types

11.5 km

5.46 km

Surfaces

17.0 km

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Elevation

Elevation

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Highest point (2,630 m)

Lowest point (2,070 m)

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Weather

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Today

Sunday 5 July

29°C

8°C

15 %

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Max wind speed: 8.0 km/h

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Frequently Asked Questions

What is the hiking experience like on Kelly Flats Road?

Kelly Flats Road is primarily known as a challenging off-road trail for 4x4 vehicles, ATVs, and UTVs. While it is technically possible to hike, you should be prepared for a very rugged and demanding experience. The trail features extremely steep and rocky sections, notably "Heart Attack Hill" at the beginning, and "The Chutes" which would likely require scrambling. It can also become very muddy after rain. Hikers should be aware of and prepared for vehicle traffic.

Is this trail suitable for beginner hikers or families with young children?

No, Kelly Flats Road is generally not recommended for beginner hikers or families with young children due to its extreme difficulty, steep and rocky terrain, and shared use with challenging off-road vehicle traffic. The obstacles present significant challenges even for experienced hikers.

What kind of scenery and wildlife can I expect to see?

Despite the rugged terrain, the route offers beautiful scenery. It climbs steeply out of the Cache La Poudre River Valley, providing sweeping views of the valley and the Mummy Range on clear days. You'll pass through lush meadows with wildflowers and abundant forest, with opportunities to spot wildlife such as moose, elk, and deer.

Is Kelly Flats Road dog-friendly?

Yes, dogs are generally allowed on Kelly Flats Road. However, given the challenging terrain, potential for vehicle traffic, and rocky surfaces, ensure your dog is accustomed to such conditions and always keep them on a leash for their safety and the safety of wildlife and other trail users.

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

The best time to hike Kelly Flats Road is typically during the late spring, summer, and early fall months when the trail is free of snow and ice. Be aware that summer thunderstorms can make the trail very muddy. Always check local weather and trail conditions before heading out.

Are there any permits or fees required to access the trail?

Kelly Flats Road is located within the Arapaho and Roosevelt National Forests. Generally, there are no specific permits or entrance fees required for day hiking on this trail. However, if you plan to camp, dispersed camping regulations apply, and some developed campgrounds may require fees. Always check the official USDA Forest Service website for the most current regulations.

Where can I park for the trailhead?

Parking is available near the trailhead. The Kelly Flats Campground is located across from the trailhead, which may offer parking options. Given the popularity of the area for off-roading, parking can fill up, especially on weekends.

Does the route intersect with other trails?

Yes, the route primarily follows Kelly Flats Road itself. While it is the main path, it also passes through sections of the "walk in campsite trail" for a very small portion.

Are there any specific hazards or challenges hikers should be aware of?

Hikers should be aware of several hazards: the trail's extreme difficulty with steep, rocky sections like "Heart Attack Hill" and "The Chutes"; the presence of 4x4 vehicle traffic; potential for deep mud holes, especially after rain; and the high elevation (6,800 to 8,600 feet) which can lead to altitude sickness. Always carry plenty of water and be prepared for changing weather conditions.

Are there any camping opportunities along the trail?

Yes, dispersed camping opportunities are available along Kelly Flats Road within the Arapaho and Roosevelt National Forests, subject to Forest Service regulations. The Kelly Flats Campground is also located across from the trailhead, offering developed camping facilities. Be mindful that portions of the route pass through private land, so respect property boundaries.

What amenities are available near the trail?

Basic amenities can be found in nearby towns such as Rustic and Laporte, Colorado. These may include gas stations, small stores, and potentially dining options. It's best to stock up on all necessary supplies before heading to the trailhead, as services directly adjacent to the trail are limited.

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