Stepping Stones is the crag at the west end of Nip and Tuck. It has a cobblestoned southwest face with one old route, also called Stepping Stones. The East Tower is inconspicuous, barely noticeable from the road, but harbors two nice routes on granite with great friction. El Barrio is a good bouldering area.
It's 10.5 miles from the start of the canyon, on the right side in the middle of a turn to the right. Parking is limited directly underneath, but there is parking further along. This picture is looking East.
You can also park and Nip and Tuck and walk up the road to the guard rail, and cross the guard rail to get to the crag.
Rossiter mentions a "stepping stones" path to the crag, implying that the crag is named after this path. If you cross the road about dead center in the photo above you will find a path to the crag with stones embedded in the ground. I thought the crag was named "Stepping Stones" due to its corrugated look.