Get Directions to Grapevine Trail Head. Head north on I-15 for 4.2 miles and take Exit 13 to Washington Parkway. Turn left and cross the freeway, then park in the dirt parking lot on the right. Ride your bike up the dirt road (Grapevine Trail) and continue straight at the first right for about .5 mile which will put you on Prospector Trail. There is a fairly technical downhill portion at this part so take caution.
Get Directions to Cottonwood Trailhead. Head North on I-15 for 4.2 miles and take Exit 16 towards Hurricane. Continue towards Hurricane for about a mile and turn left at the Chevron. Follow the road for about 2 miles. Just past Winkel Distributing is a dirt road to the left. Take it under the freeway and you’ll arrive at the trailhead. This is one of the most popular trailheads since it’s in the middle of Prospector so you’ll be able to choose if you want to ride the North or South portions of the trail.
Get Directions to Harrisburg Trailhead. Head North on I-15 for 4.2 miles and take Exit 16 towards Hurricane. Continue towards Hurricane until you reach the turnoff for Quail Creek Reservoir, and make the turn for the Reservoir. Drive for about a mile until you reach an intersection, then turn right towards Harrisburg. Drive a few hundred feet, passing the KOA, and turn left onto the underpass. Go under the freeway then on your right there’s a parking lot. Park, then ride back towards the underpass but keep going straight. The road will turn and you’ll eventually see the trailhead to the left.