Château de Bourmont

Freigné (French pronunciation: [fʁɛɲe] ) is a former commune in the Loire-Atlantique department in western France. Before 1 January 2018, it was part of the Maine-et-Loire department. On 1 January 2018, it was merged into the new commune of Vallons-de-l'Erdre.

Vritz (French pronunciation: [vri]; Breton: Gwerid) is a former commune in the Loire-Atlantique department in western France. On 1 January 2018, it was merged into the new commune of Vallons-de-l'Erdre.

Maumusson (French pronunciation: [momysɔ̃]; Breton: Malvegon) is a former commune in the Loire-Atlantique department in western France. On 1 January 2018, it was merged into the new commune of Vallons-de-l'Erdre.

Candé (French pronunciation: [kɑ̃de] ) is a commune in the Maine-et-Loire department in western France.

Le Pin (French pronunciation: [lə pɛ̃] ; Gallo: Le Pein or L'Piñ, Breton: Ar Bineg) is a commune in the Arrondissement of Châteaubriant-Ancenis of the Loire-Atlantique department in western France. It is located between Rennes and Angers, in the drainage basin of the Erdre, a right tributary of the Loire.

Saint-Mars-la-Jaille (French pronunciation: [sɛ̃ maʁ la ʒaj]; Breton: Sant-Marzh-an-Olivenn) is a former commune in the Loire-Atlantique department in western France. On 1 January 2018, it was merged into the new commune of Vallons-de-l'Erdre.

Vallons-de-l'Erdre (French pronunciation: [valɔ̃ də lɛʁdʁ] ; Breton: Saonioù-an-Erzh) is a commune in the department of Loire-Atlantique, western France. The municipality was established on 1 January 2018 by merger of the former communes of Saint-Mars-la-Jaille (the seat), Bonnœuvre, Freigné (part of the department of Maine-et-Loire before 2018), Maumusson, Saint-Sulpice-des-Landes and Vritz.

Belligné (French pronunciation: [bɛliɲe]; Breton: Belenieg) is a former commune in the Loire-Atlantique department in western France. On 1 January 2016, it was merged into the new commune of Loireauxence.

La Rouxière (French pronunciation: [la ʁuksjɛʁ]; Breton: Kerrouz) is a former commune in the Loire-Atlantique department in western France. On 1 January 2016, it was merged into the new commune of Loireauxence.

Challain-la-Potherie (French pronunciation: [ʃalɛ̃ la pɔtʁi] ) is a village and a commune in the Maine-et-Loire department in western France. It is 9 km (6 mi) north of Candé.

Saint-Sulpice-des-Landes (French pronunciation: [sɛ̃ sylpis de lɑ̃d]; Breton: Sant-Suleg-al-Lanneier) is a former commune in the Loire-Atlantique department in western France. On 1 January 2018, it was merged into the new commune of Vallons-de-l'Erdre.

The Faluns Sea is a former sea which covered Western France from 16 to 3.5 Ma. It spreads from Normandy to Vienne by forming an inlet through what is today Brittany, Anjou, Touraine and Blésois. The withdrawal of the ancient sea left behind sedimentary stones rich in fragmentary shells called falun. The sea got its name from this sedimentary rock renown for its fossil richness.