The Oise River is a significant waterway in northern France, flowing approximately 302 kilometers. It originates from the Oise department near the town of L'Isle-Adam and eventually merges with the Seine River at Conflans-Sainte-Honorine. The river is an important tributary, contributing to the region's agriculture and transportation. The Oise River passes through several towns, including Pontoise and Beauvais, and is known for its scenic beauty and historical significance. It has been a vital resource for local communities, providing water for irrigation and serving as a route for trade and travel throughout history.