This region holds some important national parks, mostly in Jujuy and Salta provinces. Parque Nacional Calilegua preserves subtropical cloud forest and is home to an array of birdlife, as well as pumas and jaguars. Far-flung Parque Nacional Baritú contains subtropical montane forest and is home to monkeys, big cats, otters and forest squirrels. Parque Nacional El Rey is the most biologically diverse park in the country and teems with birdlife, including toucans. Between Salta and Cachi, Parque Nacional Los Cardones is full of cactus-studded photo opportunities. Much further south, Parque Nacional Talampaya has aboriginal petroglyphs, photogenic rock formations and local flora and fauna.