A handful of entertaining problems are on this boulder. A few of them revolve around the obvious well chalked scoop/prow feature in the middle of the face.

This boulder is in the main area kind of opposite the Petrified Boulder. Follow the road up to the first switchback and take a trail up the hill off the end of the switchback to a higher "road". Go left on this road a short ways to another trail heading up to the Warm-up Boulder, then left on the upper trail. You can also head left on the second "road" a little further to a second trail that goes straight up to the Main Area. Either way, once in the Main Area continue straight or turn left and walk till you come to the steep 45 degree face of the Petrified Boulder, now with the face to your left turn around so you are facing the opposite direction on the trail and you should see the Skully Boulder.