yuzees:Arizona’s Grand Canyon is a natural formation distinguished by its layered bands of red rock
yuzees:Arizona’s Grand Canyon is a natural formation distinguished by its layered bands of red rock and its vast scale, averaging 10 miles across and a mile deep along its 277-mile length. Much of the area is a national park. With sweeping vistas, it’s a destination for hiking, mule rides, camping and aerial tours, plus white-water rafting on the Colorado River. -- source link