Burial mound of Espiñaredo Nature · Negreira, Barcala, A Coruña Image of Negreira, not of the place itself. Megalithic mound thirty-two metres across and five high, one of the largest in south-western A Coruña; it belongs to the group of prehistoric funerary monuments scattered across the hills of the concello. Photo: Luis Miguel Bugallo Sánchez (Lmbuga Commons)(Lmbuga Galipedia) (CC BY-SA 3.0) What to see and do in Negreira