Natural Bridges National Monument, 7,636 acres (3,093 hectares), SE Utah; est. 1908. Located in an area of colored cliffs and box canyons, the monument contains three huge natural sandstone bridges: Owachomo (also called Rock Mound), 106 ft (32 m) high with a span of 180 ft (55 m); Kachina, 210 ft (64 m) high with a span of 206 ft (63 m); and Sipapu, 220 ft (67 m) high with a span of 268 ft (82 m). See National Parks and Monuments, table.
The Columbia Electronic Encyclopedia, 6th ed. Copyright © 2012, Columbia University Press. All rights reserved.