The Navajo or Diné are an Indigenous people of the Southwestern United States. Their traditional language is Diné bizaad, a Southern Athabascan language. The states with the largest Diné populations are Arizona (140,263) and New Mexico (108,305). More than three-quarters of the Diné population resides in these two states. The overwhelming majority of Diné are enrolled in the Navajo Nation. Some Diné are enrolled in the Colorado River Indian Tribes, another federally recognized tribe. With more than 399,494 enrolled tribal members as of 2021, the Navajo Nation is the second largest federal recognized tribe in the United States. The Navajo Nation has the largest reservation in the country. The reservation straddles the Four Corners region and covers more than 27,325 square miles (70,770 square kilometers) of land in Arizona, Utah, and New Mexico. The Navajo Reservation is slightly larger than the state of West Virginia. Source: Wikipedia (en)