Crestline Sidewinder Loop Trail is actually a 9.6 mile moderately trafficked loop trail located near Boise, Idaho that features beautiful wild flowers and it is rated as moderate. The trail offers several activity options and is best used from March until October. Dogs are also able to utilize this trail.
Crestline is just one of my personal favorite loops, which I recently realized joins using the riparian trail which leads up to the Upper Hull’s Gulch area. It’s an attractive hike, just bring lots of water during the summer time and look out for cyclists!
Good overall hike however, not a real great area for birding. Very few varieties and appearances on the day I had been there. This trail seems better for biking than hiking and that’s mostly what you’ll see. It really is a good length and relatively pretty if you want desert scenery. There is a really small forested area at the beginning. The challenge level is probably near easy but with a route for enough time to discourage small kids. The inclines are very mild compared to other moderate rated desert trails like Harrison Hollows.
Great trail system with access from several different starting points. Strongly recommend. Beneficial to all ability levels, based on your alternatives of course. Best trail for dog owners! The Military Reserve has an off leash dog park and most trails are off leash. Take pleasure in the wildflowers in April & May! One of many need to do trails inside the Boise Foothills, Sidewinder is really a nice climb, great view, along with a fun downhill. A bit crowded on weekends.
Below are a few recommendations for dynamite hikes, trail-runs and bike rides inside the Boise foothills. The tips come from my trail guides, Mountain Biking in Boise and Boise Trail Guide. It’s essential to focus on the mid- to lower foothills trails during the early spring. Top of the trails and also the Boise Ridge Road continue to be snow-bound. The trails within the mid- to upper foothills, such as the Watchman Trail, remain wet and greasy in certain places, so it’s advisable to wait to allow them to dry completely. Prior to deciding to hit the trails, check out current trail conditions on the Ridge to Rivers website.
Military Reserve Short Loop – 2 miles, lower than one hour hiking time. Easy, having a short hill. Here’s a shorter tour for families and small kids. Start on the Toll Road Trailhead off of Mountain Cove Road. Go up the Toll Road Trail under a mile to a junction. Go left and ascend to the initial summit of Military Ridge. Turn left and descend on the singletrack trail resulting in Freestone Creek Trail over by the dirt road. Turn left on Freestone and return to the trailhead.
Seaman’s Gulch Double Loop – 3 miles total. 1 hours hiking time; 30-45 minutes running time; thirty minutes riding time. Easy. Take Hill Road west in Boise to the Seaman’s Gulch/Hidden Springs right-hand turnoff. Go right and follow Seaman’s Gulch Path to a good paved parking area and restroom close to a large water tank. Take the Valley View Trail #111 to the right, and after that consider the first left on Trail #110 to Phlox Trail #112, turn left and return to the trailhead for a one-mile short loop. Now go back on Valley View, while keeping going to the true “valley view” viewpoint offered by the trail, hanging higher than the Boise Valley. The trail loops around to fknihd and returns for the trailhead.
Cross-Foothills Ride (Intermediate; strenuous in places) – 10 miles. 2 hours riding time. Strong intermediate. Today, I rode as much as the Corrals Trail (trailhead is 1.8 miles north of Curling Drive on Bogus Basin Road), rode Corrals to Corrals Summit, and then rode downhill on Corrals and Trail #1 up to Hulls Gulch. I Then took Crestline Sidewinder Loop Trail to Military Reserve, and dropped out on the Freestone Creek Trail in Military Reserve near Fort Boise. The toughest area of the ride is climbing to Corrals Summit (3 miles uphill from trailhead, 1,200 feet of vertical gain). Then it’s mostly downhill to Military Reserve, with some uphill sections in the middle. Fun ride! Hardy mountain trail runners would enjoy that route also.
Crestline-Hulls Loop – 7.25 miles. Moderate. 2.5 hours hiking time; 1.5 hours running time; 1.25 hours riding time. Intermediate. Start from Camelsback Park in Boise on N. 13th. Discover the trailhead behind the tennis courts. Climb on Owls Roost and Kestrel to Crestline. Follow Crestline for the Hulls Gulch Junction. Turn left and descend on Hulls Gulch. It’s rocky and uneven in places. Once you make it to the 8th Street trailhead from the Foothills Learning Center, turn right, cross 8th Street, and finish the ride on Red Fox Trail, which leads you back to Camelsback Park.
Variations on Crestline-Hulls Loop – Advanced. Ride the loop in reverse, or climb Hulls. It’s challenging, but fun! Another favorite of mine is to start at Camelsback Park, climb Hulls towards the Crestline junction, ride Crestline back to the Sidewinder trailhead, climb Sidewinder, fall Trail #4 for the Hulls Crestline junction, and descend Hulls and Chickadee Ridge back to Camelsback.