Canyon: Definition, Formation, and Examples - Explore the World's Grand Canyons

A canyon is a deep, narrow valley with steep sides, often carved by a river or stream. Canyons can be found in various types of terrain, including deserts, mountains, and plateaus. They can range in size from small, narrow gorges to massive, expansive canyons like the Grand Canyon in Arizona, USA. Canyons are often popular tourist attractions for their natural beauty and unique geological features.