American Landmarks -> grand canyon
The Grand Canyon is a steep-sided canyon carved by the Colorado River in the state of Arizona, United States. It is one of the most famous natural landmarks in the world and is known for its visually overwhelming size and its intricate and colorful landscape.
The Grand Canyon was formed by the erosion of the Colorado River over millions of years. The layers of rock exposed in the canyon walls provide a record of Earth's history, with some rocks dating back over 2 billion years.
The Grand Canyon is immense, stretching 277 miles long, up to 18 miles wide, and over a mile deep. It is divided into the North Rim and the South Rim, with different ecosystems and vegetation on each side of the canyon.