The mountain range that runs along the border between the U.S. and Canada is the Cascade Range in the west, and the Rocky Mountains in the east. The Cascades are known for their volcanic activity and stunning natural scenery, including snow-capped peaks and fertile valleys. Meanwhile, the Rocky Mountains are iconic for their rugged terrain and serve as a critical divide for watersheds in North America. Both ranges attract outdoor enthusiasts and provide important habitats for numerous wildlife species.