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Los Alerces National Park
Photo: “Cerro y glaciar Torrecillas - Lago Menéndez - Parque Nacional Los Alerces - Chubut - Argentina - panoramio” by littletroll / CC BY-SA 3.0 / Wikimedia Commons · Cropped

Los Alerces National Park

WHC 1526Inscribed 201742.81°S 71.90°W34 Wikipedia languages

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Timeline
3000 BCEFrom 1937Today

How it came to be

Los Alerces National Park lies in the Andes of Chubut Province in northern Patagonia, Argentina, and its western boundary is the border with Chile. Successive glaciations shaped moraines, cirques, U-shaped valleys and chains of clear lakes, and the whole park lies in the basin of the Futaleufu River.

The park was created in 1937 to protect forests of alerce, called lahuan by the Mapuche, and other Patagonian Andean flora. The alerce, Fitzroya cupressoides, is a conifer found only in South America and the second longest-lived tree species in the world, living more than 3,600 years. In the Millennial Alerce Forest on the north arm of Lake Menendez, the largest and oldest tree is nearly 60 m tall and about 2,600 years old.

In the 1970s the Futaleufu Dam and its reservoir were built in the adjoining national reserve, and the reservoir reaches into the World Heritage property. Strictly protected zones cover 125,463 ha, about two-thirds of the park. It was inscribed in 2017.

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