Reserva natural Sierra del Tigre, Natural reserve in Buenos Aires Province, Argentina.
Reserva natural Sierra del Tigre is a protected natural area in the Tandilia mountain range of Buenos Aires Province, Argentina. It covers open grasslands and shrubland typical of the pampa region, set across a hilly landscape of low rocky ridges.
In 1972, geographer Huberto Cuevas Acevedo founded the Friends of Sierra del Tigre Natural Reserve group, which led directly to the area receiving official protection in 1973. Before that, the hills had been used for generations as a working quarry zone.
The name Sierra del Tigre comes from the gaucho herding era, when drovers moved cattle through these hills and left traces of their passage behind. Stone paths and the ruins of workers' shelters are still visible today along the main route.
A consolidated path runs through the area and is open to walking, horseback riding, and vehicles, making the terrain accessible for different kinds of visitors. Sturdy footwear and layers of clothing are a good idea, as conditions in the hills can change quickly.
The reserve brings together animals that rarely share the same ground elsewhere, including guanacos, llamas, pumas, axis deer, gray foxes, and wild boars. The mix of native and introduced species living side by side here is something few visitors expect to find in this part of the province.
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