Links:

http://www.sectur.gov.ar/g/reg1/reg1.htm Argentina Nacional Tourist Site. Information about the Mesopotamia (Misiones, Jesuit Missions, Iguazú Waterfalls, Moconá Waterfalls, Corrientes and the Iberá Marshland). In English.

http://estanciasargentinas.com/_asp/res_mapa.asp?txtZona=4
Farm tourism in Mesopotamia. Iguazú National Park.In English.

http://www.unesco.org/whc/sites/355.htm
Unesco World Heritage, reference: National Park of Iguazú. In English.

http://www.wcmc.org.uk/protected_areas/data/wh/iguazu.html
Data, climate, vegetation, fauna and more. Very good site. In English.