Four Corners

region of the United States consisting of the southwestern corner of Colorado, northwestern corner of New Mexico, northeastern corner of Arizona and southeastern corner of Utah

The Four Corners is the place in the Southwestern United States where the four corners of New Mexico, Colorado, Utah, and Arizona meet. Three of the four corners (AZ, NM, UT) are on the Navajo Indian Reservation and the fourth corner (CO) is on the Ute Mountain Indian Reservation.

The Four Corners region is in the red area on this map.
The Four Corners Monument, placed by the Interior Department at the exact point.

The Four Corners Monument is at the coordinates 36°59′56.31532″N 109°02′42.62019″W / 36.9989764778°N 109.0451722750°W / 36.9989764778; -109.0451722750.[1]


  1. "Four Corners PID AD9256" (text file). NGS Survey Monument Data Sheet. United States National Geodetic Survey. 2003-05-07. Retrieved 2007-01-15.