The Loir () is a long river in western France. It is a left tributary of the Sarthe. Its source is in the Eure-et-Loir department, north of Illiers-Combray. It joins the river Sarthe in Briollay, north of the city of Angers. It is indirectly a tributary of the Loire, and runs roughly parallel to it and slightly north of it for much of its length, and so might be regarded as a Yazoo type river. Departments and towns crossed include Eure-et-Loir (28): Illiers-Combray, Bonneval, Châteaudun, Cloyes-sur-le-Loir Loir-et-Cher (41): Fréteval, Morée, Vendôme, Montoire-sur-le-Loir Sarthe (72): La Chartre-sur-le-Loir, Château-du-Loir, Le Lude, La Flèche Maine-et-Loire (49): Durtal, Lézigné, Seiches-sur-le-Loir Tributaries include Ozanne Yerre Braye Aigre Conie References Rivers of France Rivers of Eure-et-Loir Rivers of Loir-et-Cher Rivers of Maine-et-Loire Rivers of Sarthe Rivers of Centre-Val de Loire Rivers of Pays de la Loire