Petroglyphs of Valongo Curiosity · Cortegada, Ribeiro, Ourense Image of Cortegada, not of the place itself. Bronze Age rock carvings located in the parishes of Valongo and Louredo; to this prehistoric repertoire are added Roman altars found in the municipality with dedications to local deities. Photo: Bene Riobó (CC BY-SA 4.0) What to see and do in Cortegada