Five Mile Gulch, Watchman, and Three Bears Loop
Five Mile Gulch, Watchman, and Three Bears Loop
4.6
(3850)
6,090
riders
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
Start point
Parking
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1.92 km
Highlight • Trail
Tip by
2.97 km
Highlight • Trail
Tip by
3.21 km
Highlight (Segment) • Trail
Tip by
9.56 km
End point
Parking
Way Types & Surfaces
Way Types
9.35 km
219 m
Surfaces
9.49 km
< 100 m
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Elevation
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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This route was planned by komoot.
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.
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.
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.
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.
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.
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.
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.
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.
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.
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.
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.
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