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 long.
The Rouillon crosses the following "départements" and towns:
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.