Parque Provincial Ischigualasto

Over time the persistent action of water has exposed a wealth of fossils (some 180 million years old from the Triasic Period) in Parque Provincial Ischigualasto (Valle de La Luna). named for an early Paleo-Indian Culture, the park's museum displays a variety of fossils, including the carnivorous dinosaur Herrerasaurus, the Eoraptor Lunensis (the oldest known predatory dinosaur) and good dioramas of the park's Paleo-environments.
Colloquially known as Valle de La Luna (valley of the moon) 63.000 hectare Ischigualasto is a desert valley between two sedimentary mountain ranges, the Cerros Colorados in the east and Cerro Los Rastros in the west. Over millennia, at every meander in the canyon, the waters of the nearly dry Rio Ischigualasto have carve distinctive shapes in the malleable red sandstone, monochrome clay and volcanic ash. Predictably, some of these forms have acquired popular names, including "cancha de bochas" (the ball court), "el submarino" (the submarine) and "el gusano" (the worm) among others. the desert flora of algarrobo trees, shrubs and cacti complement the eerie landforms.