The Essonne River is a small river located in the Île-de-France region of France. It is approximately 80 kilometers long and flows through several departments, including Essonne and Seine-et-Marne. The river is a tributary of the Seine River, contributing to the larger river system in the area. The Essonne River is known for its picturesque landscapes and natural beauty. It passes through various towns and villages, providing recreational opportunities such as fishing and hiking along its banks. The river also plays a role in local ecosystems, supporting diverse wildlife and plant species.