The term 'GRAND CANYON' is a 6-letter crossword solution that refers to the GRAND CANYON, a steep-sided CANYON carved by the Colorado River in Arizona, United States. It is one of the most iconic natural landmarks in the world and is considered one of the Seven Natural Wonders of the World. The GRAND CANYON is 277 miles long, up to 18 miles wide, and over a mile deep. It is a popular tourist destination and is visited by millions of people each year.