The mountain range primarily found in the western United States is the Rocky Mountains. Stretching from Canada to New Mexico, the Rockies are known for their stunning natural landscapes, including rugged peaks and deep valleys. This mountain range is popular for outdoor activities, such as hiking, skiing, and climbing. Its diverse ecosystems provide habitats for numerous wildlife species. The Rockies also influence the climate and water sources across the region, making it a significant geographical feature in terms of both ecology and economy.