Double Arch, at 112 feet, is the tallest arch in the park. At 144 feet in length, it's also the second-longest arch in the park. Luckily, this natural wonder is easy to reach. The half-mile trail ...

The NPS said the popular “Double Arch” — which has also been called the “Toilet Bowl,” “Crescent Pool,” and “Hole in the Roof” — in Glen Canyon National Recreation Area ...