Sipapu Natural Bridge
Encyclopedia
Sipapu Bridge is a natural bridge or arch
Natural arch
A natural arch or natural bridge is a natural geological formation where a rock arch forms, with an opening underneath. Most natural arches form as a narrow ridge, walled by cliffs, become narrower from erosion, with a softer rock stratum under the cliff-forming stratum gradually eroding out until...

 located in the Natural Bridges National Monument
Natural Bridges National Monument
Natural Bridges National Monument is a U.S. National Monument located about north west 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...

 in the U.S. state
U.S. state
A U.S. state is any one of the 50 federated states of the United States of America that share sovereignty with the federal government. Because of this shared sovereignty, an American is a citizen both of the federal entity and of his or her state of domicile. Four states use the official title of...

 of Utah
Utah
Utah is a state in the Western United States. It was the 45th state to join the Union, on January 4, 1896. Approximately 80% of Utah's 2,763,885 people live along the Wasatch Front, centering on Salt Lake City. This leaves vast expanses of the state nearly uninhabited, making the population the...

. The bridge spans White Canyon.

Sipapu was long reported to have a span of 268 feet by the National Park Service
National Park Service
The National Park Service is the U.S. federal agency that manages all national parks, many national monuments, and other conservation and historical properties with various title designations...

, ranking it as the fourth longest natural arch in the world. A more accurate measurement obtained by laser survey in 2007 revealed the measurement to be a significant overstatement. The Natural Arch and Bridge Society has published a revised span of 225 feet, demoting the arch to a seventh place ranking.

Based on specific criteria that separate natural arches from bridges, Sipapu is still ranked as the second longest natural bridge after the more famous Rainbow Bridge National Monument
Rainbow Bridge National Monument
Rainbow Bridge National Monument is administered by Glen Canyon National Recreation Area, southern Utah, USA. Rainbow Bridge is often described as the world's highest natural bridge. The span of Rainbow Bridge was reported in 1974 by the Bureau of Reclamation to be , but a laser measurement in...

, also in Utah.

Sipapu can be viewed from a roadside viewpoint but is best viewed from a short hiking trail that leads down to its base from the canyon rim. Since the closure of the trail leading under Landscape Arch due to safety concerns, and the voluntary prohibition placed on passing under Rainbow Bridge in deference to (often debated) Navajo
Navajo Nation
The Navajo Nation is a semi-autonomous Native American-governed territory covering , occupying all of northeastern Arizona, the southeastern portion of Utah, and northwestern New Mexico...

 and Hopi
Hopi
The Hopi are a federally recognized tribe of indigenous Native American people, who primarily live on the Hopi Reservation in northeastern Arizona. The Hopi area according to the 2000 census has a population of 6,946 people. Their Hopi language is one of the 30 of the Uto-Aztecan language...

 spiritual beliefs, Sipapu is now the longest natural arch in the world to have an active trail beneath it that visitors may pass under, affording spectacular views of the underside of the arch.

The name of the arch comes from the Hopi
Hopi
The Hopi are a federally recognized tribe of indigenous Native American people, who primarily live on the Hopi Reservation in northeastern Arizona. The Hopi area according to the 2000 census has a population of 6,946 people. Their Hopi language is one of the 30 of the Uto-Aztecan language...

 word sipapu
Sipapu
Sipapu, a Hopi word, is a small hole or indentation in the floor of kivas used by the Ancient Pueblo Peoples and modern-day Puebloans. It symbolizes the portal through which their ancient ancestors first emerged to enter the present world....

, a word for a symbolic portal from which the first human ancestors emerged.
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