An extensive municipality in the valley of the Arroscia, on the southern slopes of Castell’Ermo (1092 meters or 3583 feet). In the Middle Ages it had its own lords, subject to the jurisdiction of the commune of Albenga. A partial fief of the marchesi di Clavesana, it was ceded in the first decade of the fourteenth century to the commune of Albenga, eventually passing with it to the republic of Genoa. In the hamlet of Castellaro it is possible to see the ruins of the imposing castle of the Clavesana, with its well-preserved hexagonal tower. A series of fortified houses stand high above the river at Curenna. It is an attractive place for excursions, among the olive groves, in the direction of the Savonese Alps.