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Hole in the Roof
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Double Arch and Toilet Bowl Collapse in Southern Utah's Glen Canyon National Recreation Area
3
11
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perspectives
1.
Geology
countries
1.
Taiwan, Province of China
2.
United States
organizations
1.
Navajo
2.
US National Park Service
persons
1.
Michelle Kerns
technicals
1.
Crescent Pool
2.
Double Arch
3.
Elephant Trunk Rock
4.
Glen Canyon National Recreation Area
5.
Horseshoe Bend
6.
Toilet Bowl