Just to the southwest of Green Valley Gap is one of my favorite St. George crags, if not for the diversity in routes and rock, then for the isolation and views. The Zen Wall is comprised of sandstone cliffs that hang out over a mesa on the west side of St. George, thus receiving western exposure in the afternoon. Therefore it is a better winter crag than summer one, although the morning hours will offer significant shade. The Zen Wall routes are quite a bit taller and more interesting than the Green Valley Gap routes on average.
Zen Wall, St. George, UT, 2007