I know this place... in the west of the Buenos Aires province... and posted here in IMCDb one documentary about Villa Epecuén: destroyed in 1985.
http://imcdb.org/movie.php?id=1004511302
http://imcdb.org/movie.php?id=145480
In this site, are filmed some movies: El viaje, La Sonámbula, There be dragons, and others