Stretching 277 miles from end to end, the Grand Canyon's rocky walls descend more than a mile to the canyon’s floor, where the wild Colorado River continues to carve away at the rugged landscape. the Grand Canyon is easily Arizona's most distinguishable landmark — a natural wonder you must see to believe. Tag a friend that you'd visit the Grand Canyon with! #takeyourtilley #livinglifeoutdoors #grandcanyon #coloradoriver #arizona #explorearizona