Dinosaur Valley is situated in the southeast of Neuquén province. This is the place where Ruben Carolini in 1993 found the fossil of the Giganotosaurus Carolinii (14.5 m and 10 tons), the biggest carnivorous dinosaur ever found in the world.

Here Lieto Tessone also found the Rebbachisaurus Tessonei in 1988, and just 50 Km away from here it was found the Argentinosaurus Huinculensis, the biggest dinosaurs ever found in the world. This has a simple explanation: 100 millions of years ago this area was a jungle plenty of rivers, lagoons and big dinosaurs going around.

Nowadays the valley is a large dam on the Limay River with a beautiful lake surrounded by pink hills, petrified forests and all the secrets of a desert region. A museum is the main attraction of the village "Villa El Chocón" (1,000 inhabitants), where it its possible to see the fossilized rest of the Giganotosaurus Carolinii.

It is a perfect place to practice different activities like fishing, swimming, sailing, camping, visit the museum with dinosaurs remains, or see millions years old dinosaurs footprints on the coast. The region has been declared of interest by the UN in 1996, and as a national monument in 1997.