A large formation in southern Utah, also known as the “Double Arch,” “Hole in the Roof” or “Toilet Bowl,” has collapsed, National Park Service officials said Friday. No injuries were reported.
A popular arch in Glen Canyon National Recreation Area collapsed Thursday, and park rangers believe changing water levels in Lake Powell and wave erosion contributed to the collapse.
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Michelle Karns, manager of the recreation area, which straddles the Utah-Arizona border, said the collapse is a reminder to protect the mineral resources that surround the lake.
This photo provided by the National Park Service shows Double Arch (center) after it collapsed on Friday, Aug. 9, 2024, in Rock Creek Bay in Glen Canyon National Recreation Area, Utah. (Jacob E. Olson/National Park Service via AP)
“These features have a lifespan and can be affected or damaged by human intervention,” she said in a statement.
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The arch was formed from 190-million-year-old Navajo Sandstone, which dates back to the Late Triassic and Early Jurassic periods. The fine-grained sandstone has withstood erosion from weather, wind and rain, according to the statement.
The recreation area encompasses approximately 2,000 square miles (5,180 square kilometers) and is popular with boaters and hikers.





