According to the National Park Service, a popular natural phenomenon collapsed last week in the Glen Canyon National Recreation Area in southern Utah.

According to NPS Rangers, the so-called “Double Arch” in the recreation area’s Rock Creek Bay collapsed on Thursday.

“(T)his event serves as a reminder of our responsibility and the need to protect the natural resources surrounding Lake Powell,” Michelle Kerns, manager of the Glen Canyon National Recreation Area, said in a statement.

Jacob E. Ohlson/AP / National Park Service

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National Park Service

The Double Arch – also called the “toilet bowl,” “half-moon basin” and “hole in the roof” – was formed from 190 million-year-old Navajo sandstone that dates from the late Triassic to early Jurassic periods, according to the NPS.

But over the years, harsh weather conditions such as wind and rain have led to erosion and spalling, which occurs when pieces of stone chip or break off.

“These features have a lifespan that can be affected or damaged by human intervention,” Kerns said.

“While we do not know what caused this collapse, we will continue our efforts to protect Lake Powell’s resources so that future generations can benefit,” she added.

NPS officials said erosion from waves and fluctuating water levels in Lake Powell may also have led to the arch’s ultimate destruction.

According to authorities, no injuries were reported in the collapse.

Arched rock formations can also be seen elsewhere in the national park system. Arches National Park in southeastern Utah has more than 2,000 natural stone arches. Bryce Canyon and Zion National Parks, also in Utah, also boast numerous arches.

In April, officials at Lake Mead National Recreation Area outside Las Vegas said two men were seen pushing reddish sandstone rocks off a cliff along a popular hiking trail.

Copyright: NPR