The dolmen of El Carbonal Nature · Espadañedo, La Carballeda, Zamora Image of Espadañedo, not of the place itself. The megalithic tomb of El Carbonal proves the human occupation of the municipal district since prehistory and is, with the castro of La Cigarrosa, the oldest archaeological landmark of this corner of the Carballeda. Photo: Rodelar (CC BY-SA 4.0) What to see and do in Espadañedo