アルモリカ山塊
The department of Sarthe is at the north end of the administrative region of Pays de la Loire. It is south of Normandy and on the southern edge of the Armorican Massif. It is bordered by the departments of Orne, Eure-et-Loir, Loir-et-Cher, Indre-et-Loire, Maine-et-Loire and Mayenne.