Dólmenes del Portillo de Enériz y de Farangortea Monument · Artajona, Valdizarbe-Novenera, Navarra About 4 km from the town, at a Bronze Age settlement, two dolmens are preserved: that of the Portillo de Enériz, with a funerary chamber of nine vertical slabs and a corridor of six, and that of the Mina de Farangortea, of similar structure but smaller, with a perforated slab at the back. Around both, necklace beads, arrowheads, copper awls, buttons, pottery, and axes were found, now in the Museo de Navarra. It is the southernmost dolmen group in Navarre. Photo: Miguel Ángel García. (CC BY 2.0) What to see and do in Artajona