This image provided by the National Parks Service taken Tuesday Aug. 5, 2008 shows the collapsed Wall Arch. One of the largest and most visible arches in Arches National Park collapsed according to park officials. Paul Henderson, the park's chief of interpretation, said Wall Arch collapsed sometime late Monday or early Tuesday. The arch is along Devils Garden Trail, one of the most popular in the park. For years, the arch has been a favorite stopping point for photographers. Henderson said the arch was claimed by forces that will eventually destroy others in the park: gravity and erosion.