Saint-Loup-du-Gast

The Colmont (French pronunciation: [kɔlmɔ̃]) is a 50.4 km (31.3 mi) long river in western France located in the departments of Orne, Manche (Normandy) and Mayenne (Pays de la Loire). It is a tributary of the river Mayenne on the right side, and so is a sub-tributary of the Loire by Mayenne and Maine. It flows into the Mayenne near Saint-Loup-du-Gast. Its longest tributary is the Ourde (11 km). The largest town on the Colmont is Gorron.

The Varenne is a 60.0 km (37.3 mi) long river in western France located in the departments of Orne (Normandy) and Mayenne (Pays de la Loire). It is a tributary of the river Mayenne on the right side, and so is a sub-tributary of the Loire by Mayenne and Maine. It flows into the Mayenne near Ambrières-les-Vallées. Its longest tributaries are the Égrenne, the Pisse, the Halouze and the Andainette. The largest town on the Varenne is Domfront en Poiraie.

La Haie-Traversaine (French pronunciation: [la ɛ tʁavɛʁsɛn]) is a commune in the Mayenne department in north-western France.

Saint-Fraimbault-de-Prières (French pronunciation: [sɛ̃ fʁɛ̃bo də pʁijɛʁ]) is a commune in the Mayenne department in north-western France.

Mayenne (, French: [majɛn] ) is a commune in the Mayenne department, northwestern France. It is a subprefecture of the department. It is situated on the river Mayenne.

Oisseau (French pronunciation: [waso]) is a commune in the Mayenne department in north-western France.

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

The arrondissement of Mayenne is an arrondissement of France in the Mayenne department in the Pays de la Loire region. It has 132 communes. Its population is 120,982 (2016), and its area is 2,961.8 km2 (1,143.6 sq mi).

Aron (French pronunciation: [aʁɔ̃]) is a commune in the Mayenne department in northwestern France.

Parigné-sur-Braye (French pronunciation: [paʁiɲe syʁ bʁɛ], literally Parigné on Braye) is a commune in the Mayenne department in north-western France.

La Bazoge-Montpinçon (French pronunciation: [la bazɔʒ mɔ̃pɛ̃sɔ̃]) is a commune in the Mayenne department in northwestern France.

Saint-Mars-sur-Colmont (French pronunciation: [sɛ̃ maʁ syʁ kɔlmɔ̃], literally Saint-Mars on Colmont) is a commune in the Mayenne department in north-western France. The river Colmont, a tributary of the Mayenne, flows through the commune.