Chompasaurus

Start with the left hand on a sidepull and a right hand mantle. After the start, each move must only use the face on the side toward the neighboring boulder. The problem follows the narrow path between the boulders upward. A huge hueco splits the problem in half, and the traverse ends in a top out at the back of the boulder.

The crux is the first two moves - making your way around the boulder to lieback on a high diagonal crack settle your feet and reach for the hueco.

It is on Hemlock Hill in the Arnold Arboretum. Follow the gravel path from Bussey Street/Hemlock Road until you see two large boulders. You're there!

Crashpad and spotter.... Don't hit your head on the tree!