Sierra de la Ventana, Mountain range in Buenos Aires Province, Argentina.
Sierra de la Ventana is a mountain range stretching 195 kilometers across the Pampas, rising dramatically from the flat terrain. The highest peak, Cerro Tres Picos, reaches 1,239 meters and dominates the landscape of the region.
Naturalist Charles Darwin explored these mountains while traveling aboard the Beagle and documented his findings for natural history studies. His observations contributed to early scientific understanding of the region's landscape and ecology.
The town of Sierra de la Ventana grew around a railway station opened in 1908 and attracted residents seeking a mountain life. Today it functions as a gateway for visitors exploring the peaks and trails nearby.
Parque Provincial Ernesto Tornquist offers hiking trails with two entry points along Route 76. Visitors should come prepared for changing weather conditions and wear proper footwear for mountain terrain.
La Ventana peak features a natural rock opening measuring roughly 9 by 11 meters that gives the entire formation its distinctive name. This striking gap in the rock face has earned the site recognition as a Natural Monument.
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