The trailhead is in the southeast corner of the East Summit Parking Lot on Pinnacle Valley Road. Walk about 10 yards down the trail to the junction, take the right fork and follow the RED and WHITE blazes. This is the more rugged 3/4-mile ascent to the summit of Pinnacle Mountain and requires crossing several boulder fields. Allow 1 to 2 hours depending on weather for this 1 1/2-mile round trip workout. Remember, when you reach the summit there is another trail that would lead you AWAY from the East Summit Parking Lot, so be sure to follow the same RED and WHITE blazes for the shortest descent back.