Roopkund has an air of mystery associated with it. Many a folklore and tale are told about this glacial tarn which lies at 5020m, hidden below a ridge on the periphery of the Nanda Devi Sanctuary in the Chamoli District of the Garhwal Himalayas. The lake is frozen almost throughout the year. In the lake lie some 300 corpses, well preserved due to the cold and clearly visible when the lake thaws. The bones have been dated to the 14th century AD.