When the Antamina Mining Company needed a paved road to move mining equipment from Yanacancha to the Conococha crossroads (some 200km east of Huaraz), they simply built it themselves. During the excavation in 2009, they made a startling discovery: more than 100 footprints and fossilized remains of at least 12 species of prehistoric animals that paleontologists have dated to the Early Cretaceous Period (about 120 million years ago). To visit, hire a car in Huallanca.