Best attractions and places to see around Saint-Mars-Sur-Colmont, a commune located in the Mayenne department of north-western France, include historical sites and natural features. The area is traversed by the River Colmont, a tributary of the Mayenne. Saint-Mars-Sur-Colmont serves as a base for exploring local points of interest and attractions in the surrounding region.
Last updated: November 1, 2026
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Highlight • Lake
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Cycling on the path along the lake is allowed.
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Great old railway bridge over the river
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Very nice setting. Very little crossing with cars.
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The Saint-Loup-du-Gast greenway will delight lovers of the little queen. This marked trail offers views of the surrounding countryside, allowing cyclists to enjoy scenic landscapes and the tranquility of nature. In addition to this, you can also discover the rail bike, a fun and original activity that consists of pedaling on old redeveloped railway lines. An unforgettable experience for young and old!
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The Rosserie viaduct made it possible to take the old railway line from La Chapelle-Anthenaise to Flers, but it only serves the greenway and superb viewpoints over the Mayenne.
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This castle was built in the 10th century. Half a century later, the castle became a garrison castle. 400 years later, it served as a prison in the 18th century. In the middle of town, the castle gardens are worth wandering through for a quiet moment.
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The Rosserie viaduct made it possible to take the old railway line from La Chapelle-Anthenaise to Flers, but it now only serves the greenway and superb views of the Mayenne.
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Built on the site of a former Carolingian residence of the 10th century, the castle, which dominates the old town, is the emblematic monument of Mayenne. Most of the visible elements date from the 13th century, in particular the dwelling and the circular keep. It houses the city museum, which exhibits objects from daily life in the Middle Ages. Medieval board games, including chess pieces and a backgammon board, are among the best-preserved pieces in the world.
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You can visit the 10th-century Château de Mayenne, which served as a garrison and prison, and now houses a museum. In Saint-Mars-sur-Colmont itself, the Église Saint-Médard features a 14th-century choir, and the site of the Vieux-Château, a former feudal residence, offers a glimpse into the region's past.
Yes, the Viaduct over the Mayenne provides excellent views of the river. The Viaduc de la Rosserie, part of an old railway line, also offers superb views of the Mayenne. The River Colmont itself traverses the commune, and further afield, the Source du Couesnon is a notable natural beauty spot.
The Greenway in Saint-Loup-du-Gast is a marked trail perfect for cycling, offering scenic landscapes and even rail biking on old railway lines. Another highlight is the Très belle portion de piste cyclable, a beautiful section on an old railway line. For more routes, explore the Cycling around Saint-Mars-Sur-Colmont guide.
Many attractions are suitable for families. The Greenway in Saint-Loup-du-Gast offers rail biking, which is a fun and original activity for all ages. The gardens of the Château de Mayenne are also pleasant for a quiet stroll with children.
There are several hiking opportunities. You can find easy to moderate trails like the 'Viaduc de la Rosserie – View of the River Mayenne loop from Ambrières-les-Vallées' or the 'Around the lake – Très joli ravin loop from Ambrières-les-Vallées'. For a comprehensive list of trails, check the Hiking around Saint-Mars-Sur-Colmont guide.
Beyond the main attractions, consider visiting Les Jardins des Renaudies in Colombiers-du-Plessis for a beautiful garden experience, or the charming town of Lassay-les-Châteaux with its two 15th-century castles and public garden. The Roman ruins in Jublains also offer a unique historical discovery.
The region boasts a rich architectural heritage. The Château de Mayenne is a prime example of 10th to 13th-century castle architecture. In Saint-Mars-sur-Colmont, the Église Saint-Médard showcases a 14th-century choir, and the private Château de Fresnay features 17th and 18th-century design.
Yes, you can find several running loops in the vicinity. Options include a moderate 11 km loop from Ambrières-les-Vallées or a 6.4 km loop from Châtillon-sur-Colmont. More running trails are detailed in the Running Trails around Saint-Mars-Sur-Colmont guide.
Several nearby towns offer additional attractions. Mayenne, about 9 km away, is home to its historic castle. Lassay-les-Châteaux, 16 km away, features two castles. Further out, Domfront (24 km) is known for its castle and cobbled streets, and Laval (34 km) has a substantial castle and historic center.
Visitors frequently highlight the scenic views, especially from the viaducts like the Viaduct over the Mayenne and the Viaduc de la Rosserie. The tranquility and natural beauty of the greenways, such as the Greenway in Saint-Loup-du-Gast, are also highly appreciated, particularly for cycling and enjoying the countryside.


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