Simplify the following text for a Grade 8 native English-speaking person.
Original: Montreuil-en-Auge is a commune in the department of Calvados in the Basse-Normandie region in northwestern France .
Simplified: Montreuil-en-Auge is a commune . It is found in the region Basse-Normandie in the Calvados department in the northwest of France .