The Cave of Pedra Furada is a small cave located in the municipality of Vila Franca de Xira, about 20 km north of Lisbon in Portugal. Archaeological studies conducted within the cave suggest it was occupied intermittently by humans during at least three periods between the end of the fourth millennium BC and the second millennium BC.
The cave results from karstification of the limestone Upper Jurassic Massif.
Cave of Pego do Diabo ⓘ cave and archaeological site in Portugal
Cave of Salemas ⓘ cave and archaeological site in Portugal
Gruta artificial da época calcolítica, aberta em argila compacta, existente no lugar de Ermejeira ⓘ cultural heritage monument in Torres Vedras, Portugal
Gruta da Pedra Furada ⓘ cave and archaeological site in Portugal