Issou

Gargenville (French pronunciation: [ɡaʁʒɑ̃vil]) is a commune in the Yvelines department in the Île-de-France region in north-central France, 45 km to the center of Paris. It is part of the Parc naturel régional du Vexin français. With the neighborhing commune of Issou, it forms an urban area of around 10000 inhabitants. Inhabitants are known in French as the Gargenvillois.

Porcheville (French: [pɔʁʃəvil] ) is a commune in the Yvelines department in the Île-de-France region in north-central France.

Guitrancourt (French pronunciation: [ɡitʁɑ̃kuʁ]) is a commune in the Yvelines department in the Île-de-France region in north-central France. Philosopher Jacques Lacan owned a local mansion called Prévôté. He lived there from 1955 until his death in 1981 and was buried at the municipal cemetery.

The Mauldre (French pronunciation: [moldʁ]) is a 35 km long river in France. It is a left tributary of the Seine. Its basin area is about 410 square kilometres, which covers 66 municipalities corresponding to 400 000 inhabitants. Its source elevation is 135 m. The Mauldre flows into the Seine near Épône. One of its affluents is the ru de Gally, whose source is in the gardens of Versailles.

Mézières-sur-Seine (French pronunciation: [mezjɛʁ syʁ sɛn] , literally Mézières on Seine) is a commune in the Yvelines department in the Île-de-France region in north-central France. It is located in the western suburbs of Paris, near the bank of the Seine 47 km (29 mi) west of Paris. The name of the commune comes from the Latin word: maceria, meaning walls.

Épône (French: [epon] ) is a commune in the Yvelines department in the Île-de-France region in north-central France. It is situated on the left bank of the River Seine 40 kilometres (25 mi) west of Paris. Together with Mézières-sur-Seine and La Falaise, it forms a settlement of around 10,000 inhabitants. Its inhabitants are known as Épônois. The name comes from the Latin Spedona and, according to Daniel Bricon, has no link to Epona the Gaulish goddess of horses and protector of horseriders.

Brueil-en-Vexin (French pronunciation: [bʁyɛj ɑ̃ vɛksɛ̃], literally Brueil in Vexin) is a commune in the Yvelines department in the Île-de-France region in north-central France.

Fontenay-Saint-Père (French pronunciation: [fɔ̃tnɛ sɛ̃ pɛʁ]) is a commune in the Yvelines department in the Île-de-France in north-central France.

La Falaise (French pronunciation: [la falɛz]) is a commune in the Yvelines department in the Île-de-France region in north-central France.

Nézel (French pronunciation: [nezɛl]) is the commune in the Yvelines department in the Île-de-France region in north-central France.