Saint-Romain-le-Puy is a commune in the Loire department in central France. The town is located 8 km from Montbrison along the D8. It w…Saint-Romain-le-Puy is a commune in the Loire department in central France. The town is located 8 km from Montbrison along the D8. It was originally built on the volcanic peak, but has since migrated to the plain.