Llyn Tegid. 07/11/91; Wales; 482 ha; 52°53'N 003°37'W. National Park, SSSI. The largest natural lake in Wales, set in a deep formerly-glaciated trough. Its aquatic vegetation is sparse, but the range of species, several of which are scarce in Britain, is indicative of generally average nutrient conditions. Llyn Tegid is one of only six sites in Britain for the fish Coregonus lavaretus and is an unusual habitat for the normally riverine fish Thymallus thymallus. Ramsar site no. 535. Most recent RIS information: 2005.

Wales