The Reñihue River is a river

River

A river is a natural watercourse, usually freshwater, flowing towards an ocean, a lake, a sea, or another river. In a few cases, a river simply flows into the ground or dries up completely before reaching another body of water. Small rivers may also be called by several other names, including...

 in the Palena Province

Palena Province

Palena Province is one of the four provinces in the southern Chilean region of Los Lagos . Due to the eruption of Chaitén Volcano and the subsequent destruction of Chaitén, Futaleufú is since March 2009 the new capital of Palena Province. The private Pumalín Park is located in the province as is...

 of the Los Lagos Region

Los Lagos Region

Los Lagos Region is one of Chile's 15 regions, which are first order administrative divisions, and comprises four provinces: Chiloé, Llanquihue, Osorno and Palena. The region contains the country's second largest island, Chiloé, and the second largest lake, Llanquihue.Its capital is Puerto Montt;...

 in Chile

Chile

Chile ,officially the Republic of Chile , is a country in South America occupying a long, narrow coastal strip between the Andes mountains to the east and the Pacific Ocean to the west. It borders Peru to the north, Bolivia to the northeast, Argentina to the east, and the Drake Passage in the far...

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Pumalín Park

The river flows through Pumalín Park

Pumalín Park

Pumalín Park is a private nature reserve in the Palena Province of Chile, created by the United States environmental foundation The Conservation Land Trust, which is endowed and led by the American business magnate Douglas Tompkins...

, a privately owned and publicly accessible nature reserve

Nature reserve

A nature reserve is a protected area of importance for wildlife, flora, fauna or features of geological or other special interest, which is reserved and managed for conservation and to provide special opportunities for study or research...

 owned by The Conservation Land Trust. In 1991, Douglas Tompkins

Douglas Tompkins

Douglas Tompkins is an American environmentalist, conservationist and a former businessman.Tompkins co-founded and ran two clothing companies: the outdoor clothing company The North Face; and with his then-wife Susie, the ESPRIT clothing company. Since leaving the business world in 1989, Tompkins...

, an American leader of The Conservation Land Trust whom is an environmentalist, conservationist and a former businessman, bought a large, semi-abandoned plot of land in the Reñihue River Valley of the Chilean province of Palena.