This is the first boulder you come to on the high trail.
Getting There
Walk up road to the first switchback. There is a trail that heads straight up the hill from this switchback. Take it. When the trail tops out at the dirt road again walk West (left) 20- 30 feet and you will see another trail the breaks off to the right. The Warm-Up boulder is at the top of this trail where it connects with the upper trail.