The primary function of the Continental Divide is to separate water flow to different oceans.

The Continental Divide, often referred to as the Great Divide, is a significant geographical feature that runs along the crest of the Rocky Mountains in North America. Its primary function is to determine the direction of water flow for rivers and streams, with waters on the western side flowing toward the Pacific Ocean, while those on the eastern side head toward the Atlantic Ocean or the Gulf of Mexico. This divide plays a critical role in the continent's hydrology, influencing ecosystems and weather patterns. It also serves as a popular destination for hikers and outdoor enthusiasts, offering scenic views and access to various recreational opportunities, including hiking, camping, and wildlife viewing, making it an important landmark in the natural landscape of North America.