This beautiful arch is formed into the cream-colored sandstones of Cedar Wash. To get to the arch, drive four miles south on Hole-in-the-Rock Road from Highway 12 to Cedar Wash Road, which takes off on the right side of Hole-in-the-Rock Road just before crossing Alvey Wash. The wash is marked by a sign but Cedar Wash Road is not. Travel west along Cedar Wash Road for about three miles and park at a pull-off on the left side of the road.
The road makes a sharp bend to the right at the parking area. Walk south from the road a fifth of a mile to the sandstone cliffs overlooking Cedar Wash, and the arch can be seen downstream along the sandstone cliffs on the left side of the wash. It is not necessary to descend all the way to the canyon floor to see it. Cedar Wash Arch has evolved into Dakota Sandstone, which is a creamy-white color that becomes quite rounded and smooth where it is exposed. This sandstone formation of ancient beach deposit is only fifty to a hundred feet thick.