Four Corners (disambiguation)
Four Corners is a region in the southwestern United States where the corners of Colorado, Utah, New Mexico and Arizona meet.
Geology of the United States
The Colorado Plateau is roughly centered on the Four Corners region of the southwestern United States. The province covers an area of 337,000 km (130,000 mi) within western Colorado, northwestern New Mexico, southern and eastern Utah, and northern Arizona. About 90% of the area is drained by the Colorado River and its main tributaries: the Green, San Juan, and Little Colorado.