The mountain range known for the Rockies is the Rocky Mountains, which stretch across the western United States and Canada. This major mountain range spans over 3,000 miles (4,800 kilometers) and is known for its stunning landscapes, including rugged peaks, deep valleys, and diverse ecosystems. The Rockies offer various recreational opportunities, such as hiking, skiing, and wildlife viewing, and are home to several national parks, including Rocky Mountain National Park and Banff National Park.