The Grey Cliffs Picnic Area is on the north side of the road just up canyon from the entrance to the Little Mill Campground (which contains Division Wall, among others).

There is a large parking lot that has room for eight or so cars, a bulletin board, and a bathroom.

Drive up the canyon past the Timpanogos Cave National Monument, watching for the entrance to the Little Mill Campground on your right.

Shortly after passing the campground entrance a sign on the left announces the picnic area. Don't pull in at the first, small parking area for one or two cars; wait for the larger lot, shown here.