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Origin and history

Port-Louis Balloon Park is a historic monument located in the commune of Port-Louis, Brittany. Built during the 2nd quarter of the 19th century, more precisely in 1848, it is part of the city's defensive network, complementing existing military infrastructure such as the citadel. This rectangular park was intended for the storage of cannon pellets, essential elements for the artillery of the time. Its walls, built in granite bellows, define a functional space, reflecting the military construction techniques of the period.

The land on which it was erected was transferred by the municipality to the military authority, emphasizing the collaboration between local institutions and the army to strengthen coastal defences. The park added to another storage space already present in the citadel, illustrating the strategic importance of Port Louis, a port city exposed to the risks of maritime attacks. The surroundings of the park were arranged with trees planted in 1773 by the engineer Louis Lazare d'Ajot, long before the construction of the park itself, adding a landscape dimension to this utility site.

This monument is part of a larger set of classified fortifications, including the citadel, the bastion The Papegaut, the small powderbox, and the esplanades of the Pastry and the Wood of Love. These elements, linked by their defensive function, bear witness to the evolution of military techniques between the 18th and 19th centuries. The ball park, although less well known than the ramparts or bastions, plays a key role in defence logistics, ensuring the supply of ammunition to coastal batteries.

Filed in the inventory of Historic Monuments by order of 21 May 1999, the ballpark is now owned by the commune of Port-Louis. Its state of conservation and location, near the hospital street, make it an accessible vestige of the Breton military heritage. Although its original vocation was obsolete, it was a material testimony to the strategies for defending the Atlantic coast in the 19th century.

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