Crestline Sidewinder Loop Trail is actually a 9.6 mile moderately trafficked loop trail located near Boise, Idaho that features beautiful wild flowers and is rated as moderate. The trail offers several activity options and it is best used from March until October. Dogs can also be able to utilize this trail.
Crestline is just one of the best loops, which I recently realized joins with the riparian trail leading up to the Upper Hull’s Gulch area. It’s an attractive hike, just bring lots of water during the summer time and watch out for cyclists!
Good overall hike although not a real great area for birding. Only a few varieties and appearances on the day I was there. This trail seems better for mountain biking than hiking and that’s mostly what you’ll see. It is a good length and relatively pretty if you appreciate desert scenery. There exists a really small forested area in the beginning. The challenge level is most likely near easy though with a route for enough time to deter small kids. The inclines are extremely mild in comparison to other moderate rated desert trails like Harrison Hollows.
Great trail system with access from a number of different starting points. Highly recommend. Beneficial to all ability levels, depending on your choices needless to say. Best trail for dog lovers! The Military Reserve posseses an off leash dog park and a lot trails are off leash. Take advantage of the wildflowers in April & May! One of the need to do trails inside the Boise Foothills, Sidewinder is a nice climb, great view, along with a fun downhill. Somewhat crowded on weekends.
Here are some strategies for dynamite hikes, trail-runs and bike rides in the Boise foothills. The guidelines come from my trail guides, Biking in Boise and Boise Trail Guide. It’s vital that you focus on the mid- to reduce foothills trails in the early spring. Top of the trails and also the Boise Ridge Road are still snow-bound. The trails inside the mid- to upper foothills, like the Watchman Trail, are still wet and greasy in certain places, so it’s better to wait so they can dry completely. Prior to deciding to hit the trails, have a look at current trail conditions on the Ridge to Rivers website.
Military Reserve Short Loop – 2 miles, lower than 1 hour hiking time. Easy, using a short hill. Here’s a shorter tour for families and small kids. Start in the Toll Road Trailhead away from Mountain Cove Road. Go up the Toll Road Trail less than a mile to your junction. Go left and climb up for the initial summit of Military Ridge. Turn left and descend over a singletrack trail leading to Freestone Creek Trail over from the dirt road. Turn left on Freestone and come back to the trailhead.
Seaman’s Gulch Double Loop – 3 miles total. 1 hours hiking time; 30-45 minutes running time; 30 minutes riding time. Easy. Take Hill Road west in Boise for the Seaman’s Gulch/Hidden Springs right-hand turnoff. Go right and follow Seaman’s Gulch Way to a nice paved parking area and restroom next to a sizable water tank. Go ahead and take Valley View Trail #111 to the right, and then go ahead and take first left on Trail #110 to Phlox Trail #112, turn left and go back to the trailhead for a one-mile short loop. Now go back on Valley View, and keep going out to the actual “valley view” viewpoint provided 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. two 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, then rode downhill on Corrals and Trail #1 over to Hulls Gulch. I took Crestline Sidewinder Loop Trail to Military Reserve, and dropped out on the Freestone Creek Trail in Military Reserve near Fort Boise. The toughest part 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 just a few uphill sections between. Fun ride! Hardy mountain trail runners would enjoy that route too.
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. Find the trailhead behind the tennis courts. Climb on Owls Roost and Kestrel to Crestline. Follow Crestline to the Hulls Gulch Junction. Turn left and descend on Hulls Gulch. It’s rocky and uneven in places. Once you reach the 8th Street trailhead by the Foothills Learning Center, turn right, cross 8th Street, and complete 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 difficult, but fun! Another favorite of mine is always 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 returning to Camelsback.