The Douro Internacional Natural Park, was created in 1998 and is the most recent natural park in Portugal. It covers part of the municipalities of Miranda do Douro, Mogadouro, Freixo de Espada à Cita and Figueira de Castelo Rodrigo, along the natural frontier formed by the Douro river. The park reaches its maximum altitude (895 meters) and its steep banks, also known as "arribas", offer a rich wildlife. Birds are the main species, especially the ones that nidify in rocky formations, such as the black stork, the Egyptian vulturem the griffon, the golden eagle or Bonelli eagle. The microclimate in cliffs is good for Mediterranean agricultural plantations, like the olive tree and the wine, as a true landmark for Douro Wine Regions, located not very far from the Douro Natural Park.