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Pereyra Iraola Park entrance arch.

The Pereyra Iraola Park[1] is a Provincial Park and is the largest urban park located in the province of Buenos Aires, Argentina.[2] It is the richest center of biodiversity in the province.[3]

The land used to belong to the Pereyra Iraola family, who acquired it from Juana Rita Pinto. In 1949, the family was expropriated by the government headed by General Juan Domingo Peron to build a community park which was opened a year later. The park measures 10,246 hectares and is located between the cities of Berazategui, Ensenada, Florencio Varela and La Plata.

During the second presidency of General Peron, the area encompassing the current park and the train station that links the Buenos Aires train station Constitución with the La Plata train station, were called Derechos de la Ancianidad (trans. "Rights of the Elderly").

Biosphere ReserveEdit

In 2008, UNESCO declared Pereyra Iraola park a Biosphere Reserve. The initiative aims to conserve biodiversity in the park and to prevent it from further development in the area.[4][5]

Accusations of improper useEdit

In October 2010, a TV program showed that Pereyra Iraola Park is used for purposes other than what was planned for, including landfill operations and a new section of the President Perón highway that would have affected the nature reserve. Recently, the project was suspended.[6]

Name changeEdit

On 23 November 2012, the Senate of the Province of Buenos Aires granted approval to change the name of the park for Governor Domingo Mercante. The proposal was the provincial initiative of Senator James Carreras, of the Front for Victory political party. It emphasizes that the "goal of changing the name of Parque Pereyra Iraola from Buenos Aires Governor Domingo Mercante, [is to] try to remember and recognize his important management decision to expropriate these lands"[7]


  1. ^ "Reserva de Biosfera Parque Pereyra Iraola".
  3. ^ "Parque Provincial y Reserva de la Biosfera PEREYRA IRAOLA".
  4. ^ "La UNESCO nombró al Parque Pereyra Iraola como Reserva de Biosfera". agencia nova. 02/10/2007. Check date values in: |date= (help)
  5. ^ La UNESCO aprobó una iniciativa para proteger al Parque Pereyra Iraola
  6. ^ Freno a una autopista en el Parque Pereyra Iraola
  7. ^ Avalan cambio de nombre del Parque Pereyra - Diario El Día de La Plata