The major mountain range that runs through the western United States is the Rocky Mountains. Stretching from Canada down to New Mexico, the Rockies encompass diverse ecosystems and stunning landscapes, including towering peaks and deep valleys. This range is renowned for its recreational opportunities, such as skiing, hiking, and mountain biking. The Rocky Mountains are also rich in minerals and are significant for their wildlife, serving as habitats for numerous species. Their scenic beauty and geological features make them a notable destination for nature enthusiasts.