Saint-Maudez

La Landec (French pronunciation: [la lɑ̃dɛk]; Breton: Lannandeg; Gallo: Lalandéc) is a commune in the Côtes-d'Armor department of Brittany in northwestern France.

Vildé-Guingalan (French pronunciation: [vilde ɡɛ̃ɡalɑ̃]; Breton: Gwilde-Gwengalon; Gallo: Vildéu-Gengalan) is a commune in the Côtes-d'Armor department of Brittany in northwestern France.

Corseul (French pronunciation: [kɔʁsœl]; Breton: Kersaout; Gallo: Corsoeut) is a commune in the Côtes-d'Armor department of Brittany in northwestern France. The town was a major Roman town and contains Roman ruins. The town hall contains a small archaeological museum.

The Temple "of Mars" is the vestige of a Romano-Celtic fanum and its courtyard, located in Corseul, in the department of Côtes-d'Armor, France.

Aucaleuc (French pronunciation: [okalœk]; Breton: Oskaleg; Gallo: Laugaloec) is a commune in the Côtes-d'Armor department of Brittany in north-western France.

Trélivan (French pronunciation: [tʁelivɑ̃]; Breton: Trelivan) is a commune in the Côtes-d'Armor department of Brittany in northwestern France.

Languenan (French pronunciation: [lɑ̃ɡnɑ̃]; Breton: Langenan) is a commune in the Côtes-d'Armor department of Brittany in northwestern France.

The canton of Plancoët is an administrative division of the Côtes-d'Armor department, northwestern France. Its borders were modified at the French canton reorganisation which came into effect in March 2015. Its seat is in Plancoët. It consists of the following communes:

Plessix-Balisson (French pronunciation: [plɛsi balisɔ̃]; Breton: Ar Genkiz-Yuzhael) is a former commune in the Côtes-d'Armor department of Brittany in northwestern France. On 1 January 2017, it was merged into the new commune Beaussais-sur-Mer. With an area of only eight hectares, Plessix-Balisson was the smallest commune of the region and the second smallest in France, after Castelmoron-d'Albret.

Brusvily (Breton: Bruzivili, Gallo: Brisstaud) is a commune in the Côtes-d'Armor department of Brittany in northwestern France.

Plancoët (French pronunciation: [plɑ̃kwɛt]; Breton: Plangoed; Gallo: Plancoét) is a commune in the Côtes-d'Armor department in Brittany in northwestern France. The Arguenon river flows through the commune.

Bobital (French pronunciation: [bɔbital]; Breton: Bowidel; Gallo: Bobitau) is a commune in the Côtes-d'Armor department of Brittany in north-western France.