Reschensee, Reservoir in Graun im Vinschgau, Italy

Reschensee is an artificial reservoir in Graun im Vinschgau, South Tyrol, about 6 km long and up to 1 km wide, held back by a dam near the Reschen Pass. The only remnant of the flooded old Graun is the upper part of the Romanesque bell tower of Santa Caterina, dating from 1357, which rises from the water.

Between 1947 and 1949, a dam project created the present water body, flooding the old center of Curon completely. Only the 14th-century tower remained above the surface, marking where the village once stood.

The lake's name comes from the Reschenhof, a farm first recorded in 1393 as "der Resche", from an old German nickname meaning lively or brisk. The flooded bell tower of Alt-Graun, a Romanesque structure of 1357, is the village's surviving landmark; its bells were removed on 18 July 1950, before the water rose.

From December to March, when the lake freezes, cross-country skiing, ice skating, snowkiting and ice sailing take place on the ice. The tower of the submerged church can then be reached on foot. The Giro del Lago di Resia was held each July from 2000 to 2025 but has been cancelled from 2026.

The tower is the surviving 14th-century bell tower of the Romanesque church of Santa Caterina d'Alessandria, built in 1357; the church itself was rebuilt between 1832 and 1838, but the tower was left untouched. Its bells were removed on 18 July 1950, before the water rose, so the winter legend of ringing bells has no basis. In 2009 the tower was restored at a cost of about 130,000 euros.