Futaleufú National Reserve, Nature reserve near Futaleufú, Chile.

Futaleufú National Reserve is a protected area in northern Patagonia that spans valleys and mountain terrain with dense forests and river systems. The landscape includes diverse native plant species and multiple natural habitats within its boundaries.

The reserve was established by the Chilean government in 1998 to protect the local ecosystem and endangered species found in the region. This designation marked an important conservation effort for this Patagonian area.

The reserve lies in Futaleufú commune, whose name comes from Mapudungun and is commonly rendered as "big river". The area is part of the Bosques Templados Lluviosos de los Andes Australes biosphere reserve, distinguished by UNESCO in 2007. Trails such as Los Piedreros pass through ciprés de la cordillera forest, and the reserve keeps the southernmost stand of Austrocedrus chilensis.

The reserve has no visitor services or infrastructure, so bring everything you need. Trails include Veranada-Correntoso, which leads to a waterfall, Los Piedreros through a ciprés forest, and La Aguada from the Río Chico over Cerro La Bandera to Valle Las Escalas. The southern and eastern boundaries follow the Argentine border, and the Futaleufú River's class IV and V rapids lie outside the reserve.

The reserve protects the southernmost stand of Austrocedrus chilensis, the cordilleran cypress, a conifer also called ciprés de la cordillera. Its presence here marks the tree's southern limit, and hikers on the Los Piedreros trail walk through a forest of it.