Dolmen of Tella Nature · Tella-Sin, Sobrarbe, Huesca The dolmen of Tella, also called the dolmen of Piedra de Vasar or Losa de la Campa, is a very well preserved megalithic tomb located in the village of Tella, in the municipality of Tella-Sin, in the Sobrarbe comarca, at 1241 metres above sea level and with views over the Pineta valley. The mound that surrounded it has almost completely disappeared. It was identified in 1954 and excavated by the archaeologist Antonio Beltrán, who found the remains of a skull and teeth. It is visible from a rest area on the road linking the A-138 with the village of Tella. Photo: Basotxerri (CC BY-SA 4.0) What to see and do in Tella-Sin