The creation of the National Parks dates back to the 1903 donation of 75 km2 (29 sq mi) of land in the Lake District in the Andes foothills by Francisco Moreno, the renowned explorer and academic in Argentina.
At the beginning of the 1920s there was an amazing revival of the national park idea at Lake Nahuel Huapí, which led to the official establishment of the Parque Nacional del Sud on 8 April 1922 by decree of President Yrigoyen.
[2] Thus, Argentina was the third country in the Americas, after United States and Canada to establish a national parks system.
[2] The National Park Police Force was born, enforcing the new laws preventing tree-felling and hunting.
Five further national parks were declared in 1937 in Patagonia and the service planned new towns and facilities to promote tourism and education.