A popular landmark in Utah is no more. The Glen Canyon National Recreation Area’s “double arch,” also known as the “hole in the roof” or “toilet bowl,” collapsed into Lake Powell’s Rock Creek Bay Thursday, Aug. 8.
Park rangers believe changing water levels and erosion from waves in Lake Powell contributed to the collapse, however they cannot pinpoint the exact cause. Rangers said no one was hurt when the double arches came down.
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The National Parks Service said the double arch was formed from Navajo sandstone dating back about 190 million years. Officials also said park rangers will work to preserve other landmarks around the Lake Powell area.
