The mountain range found in the state of Colorado is the Rocky Mountains, often known as the Rockies. This mountain range extends over 3,000 miles through western North America, comprising spectacular peaks, valleys, and diverse ecosystems. The Rockies are famous for their stunning beauty and recreational opportunities, including hiking, skiing, and camping. They also serve as a critical water source for the surrounding regions, affecting both the climate and the ecology. National parks like Rocky Mountain National Park showcase the unique landscape and wildlife of this range.