Plaine-Haute

Saint-Julien (French pronunciation: [sɛ̃ ʒyljɛ̃] ; Breton: Sant-Juluan-Pentevr) is a commune in the Côtes-d'Armor department of Brittany in northwestern France.

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

Plaintel (French pronunciation: [plɛ̃tɛl]; Breton: Pleneventer; Gallo: Plentèr) is a commune in the Côtes-d'Armor department of Brittany in northwestern France.

La Méaugon (French pronunciation: [la meoɡɔ̃]; Breton: Lanvealgon; Gallo: Laméaugon) is a commune in the Côtes-d'Armor department of Brittany in northwestern France.

Ploufragan (French pronunciation: [plufʁaɡɑ̃]; Breton: Ploufragan) is a commune in the Côtes-d'Armor department of Brittany in northwestern France. Ploufragan lies adjacent to the southwest of Saint-Brieuc, the prefecture and largest city of Côtes-d'Armor.

The canton of Ploufragan is an administrative division of the Côtes-d'Armor department, northwestern France. Its borders were not modified at the French canton reorganisation which came into effect in March 2015. Its seat is in Ploufragan. It consists of the following communes: La Méaugon Plédran Ploufragan Saint-Donan Saint-Julien

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

The canton of Saint-Brieuc-1 is an administrative division of the Côtes-d'Armor department, northwestern France. It was created at the French canton reorganisation which came into effect in March 2015. Its seat is in Saint-Brieuc. It consists of the following communes: Saint-Brieuc (partly)

The Diocese of Saint-Brieuc and Tréguier (Latin: Dioecesis Briocensis et Trecorensis; French: Diocèse de Saint-Brieuc et Tréguier; Breton: Eskopti Sant-Brieg ha Landreger) is a Latin Church diocese of the Catholic Church in France. The diocese comprises the department of Côtes d'Armor in the Region of Brittany. The diocese is currently suffragan to the Archdiocese of Rennes, Dol, and Saint-Malo. The current bishop is Denis Moutel, appointed in 2010. Originally erected, according to legend, in the 5th century, the diocese was suppressed by the French Revolution. Re-established by the Concordat of 1802, the diocese became a suffragan to the Archdiocese of Tours. Later, in 1850, it became suffragan of the Archdiocese of Rennes. The Diocese of Saint-Brieuc was formed to include: (1) the ancient diocese of the same name; (2) the greater portion of the Diocese of Tréguier; (3) a part of the old Dioceses of St. Malo, Dol, and Quimper and Léon, and (4) the parishes of the Diocese of Vannes. In 1852 the Bishops of Saint-Brieuc were authorized to add to their title that of the ancient See of Tréguier. In 2022, in the Diocese of Saint-Brieuc and Tréguier there was one priest for every 5,129 Catholics.

Saint-Brieuc station (French: Gare de Saint-Brieuc) is a railway station serving the town Saint-Brieuc, Côtes-d'Armor department, western France. It is situated on the Paris–Brest railway and the branch line to Pontivy (freight) and Le Légué (sometimes touristic).

Plédran (French pronunciation: [pledʁɑ̃]; Breton: Pledran; Gallo: Plédran) is a commune in the Côtes-d'Armor department of Brittany in northwestern France.

Tréméloir (French pronunciation: [tʁemelwaʁ]; Breton: Tremelar) is a former commune in the Côtes-d'Armor department of Brittany in northwestern France. On 1 January 2016, it was merged into the commune Pordic.