Eremo di San Michele a Foce, Medieval hermitage in Castel San Vincenzo, Italy.

The Eremo di San Michele a Foce is a small hermitage on Mount San Michele near Castel San Vincenzo, in the province of Isernia, at 930 metres above sea level. It has two rooms: a bare lower room and an upper room with a votive altar to the Archangel Michael. A bell hangs outside beside the entrance, and a terrace in front looks over the valley toward the artificial Lake San Vincenzo.

Benedictine monks are thought to have built the hermitage between 1027 and the 13th century. The sources give no 1893 Neo-Gothic rebuild; the structure consists of a bare lower room and an upper room with a votive altar to the Archangel Michael.

Each 8 May, a procession of the faithful climbs the mountain path carrying the statue of Saint Michael the Archangel to the hermitage. The upper room holds a votive altar dedicated to the archangel, and a bell hangs outside beside the entrance to the chapel.

Visitors reach the hermitage via a loop trail of about 13.6 kilometers (8.5 miles) starting from Castel San Vincenzo, climbing around 400 meters (1300 feet). The hike demands good fitness and sturdy footwear, especially in wet or snowy conditions.

The building has two rooms: a completely bare lower chamber and an upper room holding a votive altar to the Archangel Michael. Beside the entrance to the worship room hangs a bell, and the terrace in front opens onto the artificial basin of Lake San Vincenzo and the surrounding mountains.