Query: Which municipality is this in?
Context: The oldest attestation of human presence in Galicia has been found in the Eirós Cave, in the municipality of Triacastela, which has preserved animal remains and Neanderthal stone objects from the Middle Paleolithic. The earliest culture to have left significant architectural traces is the Megalithic culture which expanded along the western European coasts during the Neolithic and Calcolithic eras.