🏛️ Aqueduc gallo-romain de Rosnarho à Crach
1st-century Roman aqueduct in Brittany, France
📌 Fast Facts
- Location: Crach, Brittany, northwestern France
- Date: 1st century AD
- Length: Approximately 440 metres
- Protected status: Historical monument since 1889
The Rosnarho aqueduct is a Roman water-conveyance structure in Brittany that channelled fresh water across the countryside during the 1st century AD. Stretching approximately 440 metres, it supplied the Roman settlement of Locmariaquer with water drawn from natural springs, demonstrating the hydraulic engineering expertise applied to Gallo-Roman infrastructure. As of 2026, sections of the aqueduct remain visible across the Breton landscape, preserved as a protected historical monument since ...