Rouillon (Yvette)

The Rouillon is a small river in southern Île-de-France (France), left tributary of the Yvette, which is a tributary of the Orge. Its source is in Villejust, north of Longjumeau, in the Essonne department. It is 9.5 km long.

The Rouillon crosses the following départements and towns:
 * Essonne: Villejust, Saulx-les-Chartreux, Ballainvilliers, Longjumeau.



Tributaries

 * le ruisseau blanc

Special places
A bridge, call le pont des Templiers (templars bridge), considering as the older bridge in Essonne department, is nearby Balizy, an area of Longjumeau. It was built in the 13th century.

 image:Pont des Templiers 2.JPG image:Pont Templiers.JPG 