Five Mile Gulch, Watchman and Three Bears Loop

While the specific trailhead parking isn't detailed, this loop is a popular route in the Boise Foothills. Many mountain bikers typically start by accessing the Five Mile Gulch trail, which serves as a common entry point for the loop. Look for designated parking areas near the start of Five Mile Gulch.

This loop is generally considered an intermediate mountain biking trail. While it offers diverse terrain, it includes significant elevation gain (around 1,500 feet in the first four miles) and sections with steep grades (up to 21%). The descent on Three Bears also features technical loose rocks and washcuts, which can be challenging for novice riders. Good fitness and some technical skill are recommended.

The terrain is highly varied and engaging. You'll encounter a gradual climb initially, followed by a steady ascent on Five Mile Gulch, which can be quite steep in its upper section. The Watchman Trail features modern, hardpacked singletrack. The descent on Three Bears is notable for technical loose rocks, flowy ridgelines, and playful washcuts. Expect roots, rocks, and some sandy sections, especially towards the end.

Spring is an exceptionally beautiful time to ride this loop, as the Boise Foothills are abundant with wildflowers like sunflowers, Arrowleaf Balsamroot, Lupine, and Woodland Star. The trail offers stunning scenery throughout the warmer months, but spring provides a particularly vibrant experience. Always check local conditions before heading out.

You'll be treated to breathtaking and diverse scenery, including scenic skyline views overlooking the Boise Valley, gorgeous canyon vistas, and a mix of open landscapes and shaded areas. Mature stands of Cottonwood and Locust trees provide shade in the gulches. Wildlife spotting opportunities include songbirds, butterflies, bumblebees, and even sheep.

The provided information does not indicate any specific permits or entrance fees required for mountain biking this loop within the Noble Reserve. However, it's always a good practice to check with local land management authorities for the most current regulations before your visit.

The provided information does not explicitly state whether dogs are allowed or the specific leash rules for this loop. It's recommended to check local regulations for the Boise Foothills and Noble Reserve regarding dog access and leash requirements before bringing your pet.

The loop offers several notable features. You'll ride through Five Mile Gulch, experience the excellent flow and spectacular views of The Watchman Trail, and enjoy the thrilling descent on Three Bears. Various points along the trail provide scenic skyline views overlooking the Boise Valley and gorgeous canyon vistas.

Yes, this route incorporates sections of several other trails within the Boise Foothills. You will ride on parts of #26 Three Bears, #3 Watchman, #2 Five Mile Gulch, #26A Shane's, #6 Femrite's Patrol Trail, #45 Curlew Connection, and Prospect Trail.

The descent on Three Bears is a highlight for many riders due to its technical loose rocks, exhilarating flowy ridgelines, and playful washcuts that can be used as 'booters'. It offers a rewarding and exciting conclusion to the challenging climbs earlier in the loop.

Be prepared for significant climbing, especially in the first four miles, where most of the 1,500 feet of elevation gain occurs. The initial two miles are a gradual warm-up, but the Five Mile Gulch trail includes a steady 1.5-mile ascent, with the upper section being particularly steep and demanding good fitness. Some sections can reach grades of up to 21%, potentially requiring you to hike your bike.