Encompassing 240,000 square miles (386,242 km) including the transition zones, the Colorado Plateau stretches across four states; Arizona, Utah, Colorado, and New Mexico as well as many Tribal Nations too.
Ancient volcanic craters, plugs and mountains, mesas and
buttes, amazingly deep canyons, and most every ecosystem you can imagine can be found upon the Plateau. Elevations for this large area starts at about 610 m (2,000 ft) above sea level, with plateau tops ranging from 1,534 to 2,134 km (5,000 to 7,000 ft) and mountaintops reaching nearly 3,960 km (13,000 ft). About 90% of the area is drained by the Colorado River and its main tributaries: the Green, San Juan, and Little Colorado. Most of the remainder of the plateau is drained by the Rio Grande and its tributaries.