Valle de la Luna, officially referred to as Ischigualasto Provincial Park, is a protected natural region within the northeastern corner of Argentina's San Juan Province, bordering the La Rioja Province's Talampaya National Park. The park spans 233 square miles and is located within the Ischigualasto Formation, which contains some of the world's oldest dinosaur fossils from the Late Triassic Period. It is an important natural sciences study site, allowing for significant research about the evolutionary transition from the dinosaur era to early mammal species. It was established as a national park in 1971 and preserved as a UNESCO World Heritage Site in 2000. An interpretive center at the park showcases significant fossil findings, operated in conjunction with the National University of San Juan's Museum of Natural Sciences.
5449 San Agustin de Valle Fertil, San Juan Province, Argentina, Phone: +54-26-44-60-89-00