Rock Frog is a nice but short face to the right of the Back to the Future wall, recognized by the tree at the top, part of which extends horizontally over the trail. The hardest moves are right off the ground on polished crimpers. After the third and last bolt, the face becomes scratchy but the difficulty eases. I give it a PG-13 because there is a possibility of a bad fall from the top, although the climbing here is pretty easy. I'd give this tricky climb two stars if there were an anchor. Unfortunately, there is none and descending requires either a nontrivial downclimb or rappelling from the tree.
Right of the Back to the Future wall, left of B/C. Located by tree at top with branch growing horizontally over route.
3 Bolts. No anchor. Downclimb or rappel from the tree. (There are no slings on tree.)