The Roc de Chère National Nature Reserve is a major ecologic site in southeastern France. A protected nature reserve since 1977, it covers a small area of 69 hectares (170 acres). It is located near the commune of Talloires, on the eastern bank of Lake Annecy at an elevation of 448 metres (1,470 ft). The Roc de Chère is a small mountain, culminating at a modest 651 metres (2,136 ft), which was formed by a quaternary glacier from the south.