The stone of Alcover and the Triassic fossils Historical milestone · Alcover, Alt Camp, Tarragona The quarries of the district have for centuries extracted a laminated limestone that was used for roofs and flagstones. In its laminae fossilised fish, insects and plants of the Triassic appeared, a reference collection exhibited in the local museum. siglo XX Photo: PePeEfe (CC BY-SA 3.0) What to see and do in Alcover