Ille-sur-Têt (Catalan: Illa or Illa de Tet) is a commune in the Pyrénées-Orientales département in southern France. Its inhabitants are called Illois.

Geography

The commune is situated in the Ribéral region along the route nationale 116 and is crossed by the river Têt (in the north), as well as by its tributary, the Boulès (in the south). It is one of the gateways to the Fenouillèdes region (towards Montalba-le-Château or Bélesta). Ille-sur-Têt is located in the canton of La Vallée de la Têt and in the arrondissement of Prades.

Geology and relief

The commune covers an area of 3,167 hectares. The altitude varies between 110 and 446 metres. The commune is classified in seismicity zone 3, corresponding to moderate seismicity. The commune is also geologically characterised by the existence in its territory of chimney-like structures which have been named the "Orgues" (organ pipes) of Ille-sur-Têt. These have been cut into Pliocene sediments. The Pliocene outcrop in the commune lies between the foot of the granite plateau and the Têt river, around one kilometre north of the town. The town of Ille-sur-Têt itself was built on a river terrace which is located just to the south of the River Têt and its current floodplain, at an altitude of a few metres above that floodplain. A number of natural springs occur on or near the northern edge of that terrace, where it slopes down to the floodplain. Some of those springs have been used for centuries as "fonts" (fountains), supplying fresh water to the town and its surrounding area. An example is the "Font de la Vila", which is located at the bottom of some steps, just inside the town's old walls. The river terrace ("Fy" on the geological map) is thought to have formed towards the end of the most recent (Würm, or Devensian) glacial period. The flood plain ("Fz") is of recent (Holocene) age.

Population

Sites of interest

Notable people

In fiction

Prosper Mérimée's short story La Vénus d'Ille takes place in Ille-sur-Têt.