Sierra de las Quijadas National Park
San Luis
Sierra de las Quijadas National Park, located in northwestern San Luis Province, Argentina, spans over 73,000 hectares protecting representative environments of the Semiarid Chaco and High Monte ecoregions. Established in 1991, the park is renowned for its striking red cliffs, deep ravines, and geological formations dating back to the Lower Cretaceous period. Its landscape was shaped by 25 million years of tectonic uplift and erosion, resulting in spectacular valleys such as Potrero de la Aguada. The park hosts scarce vegetation like jarillas, cacti, and quebrachos, and supports abundant fauna including pumas, foxes, maras, guanacos, and several threatened bird species like the Andean condor and harpy eagle. Notably, it preserves important paleontological sites with fossils of dinosaurs and unique pterosaurs such as Pterodaustro. Visitors can explore archaeological remains of indigenous Huarpes pottery workshops near the entrance, reflecting millennia of human-environment interaction. The park's semi-arid climate features marked temperature variations, with wet summers and dry winters. Its combination of natural beauty, geological significance, biodiversity, and cultural heritage makes it a compelling destination for nature lovers, paleontologists, and history enthusiasts alike.
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Consejo: The best time to visit Sierra de las Quijadas is during the spring and autumn months when temperatures are moderate and wildlife activity is higher. Entry is currently free as ticketing is not in operation, but visitors should check the official website for updates. Guided tours are recommended to fully appreciate the park's archaeological sites and fossil locations. Due to the semi-arid climate, bring adequate water, sun protection, and wear sturdy footwear for hiking the rugged terrain. Early morning or late afternoon visits offer optimal lighting for photography and cooler conditions.
Datos interesantes
- •Sierra de las Quijadas contains fossils of the unique pterosaur Pterodaustro, known for its filter-feeding teeth.
- •The park’s red cliffs and terraces form a natural amphitheater with dramatic geological formations.
- •It is part of a Ramsar site, recognized for its important wetlands.
- •The park protects endangered species such as the Chaco tortoise and the lesser long-nosed armadillo (pichiciego menor).
- •Ancient Huarpes pottery kilns within the park indicate sophisticated indigenous ceramic production.
Historia
Sierra de las Quijadas National Park was officially established on December 10, 1991, to protect its unique ecosystems and paleontological heritage.
The region’s geology dates back about 120 million years to the Lower Cretaceous, with sedimentary basins filled over 20 million years.
The area experienced uplift beginning 25 million years ago due to tectonic activity forming the Sierras Pampeanas, which continues today.
Archaeological evidence shows that indigenous Huarpes peoples inhabited the area, producing pottery in specialized kilns, some of which have been preserved and are accessible to visitors.
The park has evolved from a natural refuge to a protected area managed by Argentina’s National Parks administration since 2011.
Guía del lugar
Potrero de la Aguada ValleyLower Cretaceous (approx. 120 million years ago)
A spectacular valley carved by erosion, featuring exposed Lower Cretaceous geological formations and sedimentary layers, ideal for geology enthusiasts and hikers.
Huarpes Archaeological SitePre-Columbian period
Located near the park entrance, this site preserves over twenty ancient pottery kilns used by the Huarpes indigenous people, showcasing their ceramic craftsmanship.
Red Cliffs and Farallones
The park’s iconic reddish cliffs and escarpments create an immense natural amphitheater, offering panoramic views and photographic opportunities.
Paleontological SitesLower Cretaceous
Areas within the park where fossils of dinosaurs and pterosaurs, including the filter-feeding Pterodaustro, have been discovered, attracting paleontologists worldwide.
Contacto
Teléfono: 0266 444-5141
