Simplify the following text for a Grade 6 native English-speaking person.
Original: Calorguen ( , Gallo : Calorgen ) is a commune in the CÃ tes-d ` Armor department in Bretagne in north-western France .
Simplified: Calorguen is a commune . It is found in the region Bretagne in the CÃ tes-d ` Armor department in the west of France .