Are dogs allowed on North Fork Big Thompson River Trail?

Yes, dogs are allowed on North Fork Big Thompson River Trail but must be kept on a leash at all times. Pack out waste and respect wildlife.

Do I need a permit to hike North Fork Big Thompson River Trail?

No, North Fork Big Thompson River Trail does not currently require a permit. Still check for seasonal closures or day-use fees with the managing agency before heading out.

How difficult is North Fork Big Thompson River Trail?

North Fork Big Thompson River Trail is rated difficult. It is 10.3 miles long with 2,139 feet of elevation gain. Difficulty ratings reflect a combination of distance, elevation gain, and terrain — your experience will depend on your fitness level and trail conditions.

What is the best season to hike North Fork Big Thompson River Trail?

North Fork Big Thompson River Trail is best hiked in spring, summer, and fall. Conditions vary year to year — check the trail status and weather forecast before your visit.

Is North Fork Big Thompson River Trail suitable for kids?

North Fork Big Thompson River Trail is not typically recommended for young children due to length, exposure, or technical terrain. Older kids with hiking experience may be fine — use your judgment based on your family's comfort level.

Status unknown — verify before visiting

We don't have current condition data for this trail. Check with the land manager before you go.

See Colorado trail conditions

North Fork Big Thompson River Trail route map

DifficultOut and Back

Roosevelt National Forest/Colorado

North Fork Big Thompson River Trail

Glen Haven, Colorado

10.3 mi

Distance

2,139 ft

Elev. Gain

4h 22m

Est. Time

Out & Back

Route Type

Difficult

Difficulty

About This Trail

The North Fork Big Thompson River Trail is a challenging 10.3-mile out-and-back trail located in the Roosevelt National Forest near Glen Haven, Colorado. With a significant elevation gain of 2,139 feet, this trail provides a rigorous hike through varied terrain. The trail's elevation ranges from 2,344 meters to 2,832 meters, offering expansive views typical of the Colorado Rockies. The path is primarily dirt, winding through forested areas known for their scenic beauty and opportunities to experience the natural environment of the region.

Trail Conditions

Unknown

We have no current condition data for this trail. Check with the operator before you go, and submit a report below if you've been recently.

No recent condition reports. Be the first to share what you see on the trail.

Hazards & Warnings

steep elevation gain

Elevation Profile

Min:2,344 ft

Max:2,832 ft

652 ft

Trail Details

Dogs on leash

Route Type: Out & Back
Surface: Dirt

Official sources & verification

Managed by United States Forest Service

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Managing agency

United States Forest Service
Find offices, alerts, and current orders for this agency.

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Address:CO

Best Seasons

Spring Summer Fall

Highlights

forest settingmountain views

Reviews

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Legacy import — verify before navigating

Path geometry came from our pre-launch legacy database. Routes have not yet been re-verified against the operator and may differ from the actual trail.

Hunt context