The main mountain range in the western United States is the Rocky Mountains. Spanning from Canada down to New Mexico, this extensive range features numerous peaks over 14,000 feet, including Mount Elbert, the highest point. The Rockies play a significant role in the geography and climate of the region, influencing weather patterns and providing vital ecosystems. They are also renowned for outdoor recreational activities, such as hiking, skiing, and mountain biking, drawing both locals and tourists to explore their natural beauty.