Natural Bridges National Monument |Natural Bridges National
Monument| Owachomo Natural Bridge |Location||San Juan County,
Utah, United States| |Area||7,636 acres (3,090 ha)7,637 acres
(3,091 ha)| |Created||April 16, 1908| |Visitors||91,184 (in
2011)| |Governing body||National Park Service| Natural Bridges
National Monument is a U.S. National Monument located about 50
miles (80 km) northwest of the Four Corners boundary of
southeast Utah, in the western United States, at the junction of
White Canyon and Armstrong Canyon, part of the Colorado River
drainage. It features the second largest natural bridge in the
world, carved from the white Permian sandstone of the Cedar Mesa
Formation that gives White Canyon its name. The three bridges in
the park are named Kachina, Owachomo, and Sipapu (the largest),
which are all Hopi names. A natural bridge is formed through
erosion by water flowing in the stream bed of the canyon. During
periods of flash floods, particularly, the stream undercuts the
walls of rock that separ