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Routes
Mountain biking trails
United States
Idaho
Ada County

Five Mile Gulch, Watchman, and Three Bears Loop

Routes
Mountain biking trails
United States
Idaho
Ada County

Five Mile Gulch, Watchman, and Three Bears Loop

Moderate

4.6

(3850)

6,090

riders

Five Mile Gulch, Watchman, and Three Bears Loop

01:05

9.56km

310m

Mountain biking

This moderate 5.9-mile mountain biking loop in the Boise Foothills offers diverse terrain, scenic views, and 1011 feet of climbing.

Last updated: February 26, 2026

Tips

Your route passes through protected areas

Please check local regulations for:

Boise Front ACEC

Boise National Forest

Waypoints

A

Start point

Parking

Get Directions

1

1.92 km

Five Mile Gulch

Highlight • Trail

Expect stunning views just outside of Boise. The trails are well-marked and you can connect the Five Mile Gulch to a loop if you hike along Three Bears and Watchman trail.

Tip by

2

2.97 km

Watchman Trail Junction

Highlight • Trail

Five Mile Gulch Trail will climb steeply from here. The Watchman trail will provide a flowy downhill with a couple of steep sections.

Tip by

3

3.21 km

The Watchman Trail

Highlight (Segment) • Trail

The Watchman Trail flows well across its entire length. It's steep at the beginning and toward the end, but mostly traverses open slopes and drainages.

Tip by

B

9.56 km

End point

Parking

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Way Types & Surfaces

Way Types

9.35 km

219 m

Surfaces

9.49 km

< 100 m

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Elevation

Elevation

Nothing selected – click and drag below to see the stats for a specific part of the route.

Highest point (1,410 m)

Lowest point (1,160 m)

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Weather

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Tuesday 7 July

33°C

17°C

-- %

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Frequently Asked Questions

Where can I park to access the Five Mile Gulch, Watchman, and Three Bears Loop?

While specific parking lots aren't detailed, the trail is part of the broader Boise Foothills trail system. Access points are typically found near the start of the Five Mile Gulch section. Look for designated trail parking areas within the Boise Foothills.

Is this trail suitable for beginner mountain bikers?

The overall loop is rated as moderate for mountain biking. While the Five Mile Gulch section itself is considered intermediate, the initial two miles involve a significant, gradual climb. The "Upper Five Mile Gulch" is described as a "steep painfest," and the final mile on the Three Bears section can be sandy and challenging. Beginners should be prepared for varied terrain and some demanding sections.

What is the best time of year to ride this loop?

The trail offers beautiful scenery, especially in June when wildflowers are abundant and the grass plains sway. Spring and fall generally provide pleasant temperatures. Be aware that the last mile can be quite sandy, which might be more pronounced in drier conditions.

Do I need a permit or pay an entrance fee for this trail?

This trail is located within the Boise Front Area of Critical Environmental Concern. While specific permits for individual use are not mentioned, it's always good practice to check with local land management authorities for any current regulations or fees related to the Boise Foothills trail system.

What kind of terrain can I expect on the route?

You'll encounter a diverse mix of terrain. The first two miles are a gradual climb, often through Cottonwood and Locust trees, with easy stream crossings. The rest of the trail can be level or downhill, but be prepared for roots and rocks. The "Upper Five Mile Gulch" is steep, and the final mile on the Three Bears section is predominantly downhill but can be quite sandy.

What natural features and wildlife might I see?

The loop offers great views over the Boise Valley and diverse landscapes. You'll pass through areas with beautiful wildflowers, especially in June. Along Fivemile Creek, expect more trees, shade, and thick clusters of rose bushes, creating a lush environment with plentiful vegetation, butterflies, and bumblebees. Keep an eye out for various flora and fauna typical of the Boise Foothills.

Are there any notable landmarks or viewpoints along the way?

Yes, you'll find scenic skyline views offering expansive vistas over the Boise Valley from various points. An interesting historical detail is the presence of an old toll booth midway up Five Mile Gulch, a remnant from when the route was used to access Idaho City. The Watchman Trail Junction and The Watchman Trail also offer distinct sections of the route.

Does this loop connect with other trails in the Boise Foothills?

Yes, this loop is a crucial connection within the Boise Foothills trail system. It links Five Mile Gulch with The Watchman Trail and, indirectly, Orchard Gulch and Three Bears. The route also passes through sections of the #3 Watchman, #2 Five Mile Gulch, #26 Three Bears, #6 Femrite's Patrol Trail, and #45 Curlew Connection.

Is the Five Mile Gulch, Watchman, and Three Bears Loop dog-friendly?

While specific dog regulations for this exact loop aren't provided, trails in the Boise Foothills generally allow dogs. However, it's essential to check local signage for leash requirements and always practice responsible pet ownership, including packing out waste.

What's an insider tip for riding this loop?

Given the varied terrain and scenic beauty, it's highly recommended to stop and take in the views rather than trying to do so while riding. The trail offers diverse scenery from open vistas to shaded, creek-side paths, so take your time to appreciate it.

How long does it typically take to complete this mountain biking loop?

The estimated duration for mountain biking this loop is around 1 hour and 5 minutes, but this can vary significantly based on your fitness level, technical skills, and how often you stop to enjoy the views or navigate challenging sections.

Nearby routes

Moderate

3

Three Bears and Two Point Trails Loop

00:48h

8.13km

180m

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