The Colorado Plateau: A Geological Wonderland

The Colorado Plateau is a geological wonderland that encompasses 130,000 square miles (337,000 square kilometers) centered around the Four Corners area of the American West and within the states of Colorado, New Mexico, Arizona and Utah. It ranges in elevation from slightly over 2,000 feet (600 meters) along the Colorado River in the Grand Canyon to over 12,000 feet (3,660 meters) in the Henry and La Sal Mountains of southeastern Utah. More than 90 percent of the plateau lands are drained by the Colorado River and its major tributaries, the Little Colorado, the San Juan and the Green rivers.