Phu Wiang

Phu Wiang is a distinctive ring of sandstone hills enclosing a flat valley on the Khorat Plateau. Its steep slopes give the basin the appearance of an ancient crater, though the landforms arose from folded layers of rock. Within Phu Wiang's red sandstone lie the bones of creatures far older than any village in the valley, among them the long-necked sauropod Phuwiangosaurus, which lived in the Early Cretaceous.