The "four corners" refers to the unique point in the United States where the states of Arizona, Colorado, New Mexico, and Utah meet. This geographical landmark is the only place in the country where four states intersect at a single point. It is often marked by a monument, making it a popular tourist destination for visitors who want to stand in multiple states at once.
The area surrounding the four corners is rich in Native American history and culture, particularly that of the Navajo Nation. Visitors can explore nearby attractions, such as the Monument Valley and Canyon de Chelly, which showcase stunning landscapes and significant historical sites.