The Navajo Nation is a semi-autonomous Native American

Native Americans in the United States

Native Americans in the United States are the indigenous peoples in North America within the boundaries of the present-day continental United States, parts of Alaska, and the island state of Hawaii. They are composed of numerous, distinct tribes, states, and ethnic groups, many of which survive as...

-governed territory covering 27425 square miles (71,030.4 km²), occupying all of northeastern Arizona

Arizona

Arizona ; is a state located in the southwestern region of the United States. It is also part of the western United States and the mountain west. The capital and largest city is Phoenix...

, the southeastern portion 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...

, and northwestern New Mexico

New Mexico

New Mexico is a state located in the southwest and western regions of the United States. New Mexico is also usually considered one of the Mountain States. With a population density of 16 per square mile, New Mexico is the sixth-most sparsely inhabited U.S...

. It is the largest land area assigned primarily to a Native American jurisdiction

Indian reservation

An American Indian reservation is an area of land managed by a Native American tribe under the United States Department of the Interior's Bureau of Indian Affairs...

 within the United States

United States

The United States of America is a federal constitutional republic comprising fifty states and a federal district...

.
In English

English language

English is a West Germanic language that arose in the Anglo-Saxon kingdoms of England and spread into what was to become south-east Scotland under the influence of the Anglian medieval kingdom of Northumbria...

, the initial name for the area was "Navajo Indian Reservation," governed since 1923 by the "Navajo Tribal Council." On April 15, 1969, the official name on the seal used by the government was changed to "Navajo Nation," stating that from that day on "all correspondence, stationary [sic], letterheads [...] of the Navajo Tribe use the designation 'Navajo Nation' to locate the tribe." In 1994, a proposal to change the official designation from "Navajo" to "Diné" was rejected by the council.