Parque Nacional Baritú

Parque Nacional Baritú in Salta Province is Argentina's smallest and least-visited national park — 72,000 hectares of Yungas cloud forest on the Bolivian border with no paved road access from the Argentine side and a trail system that requires wading river crossings to navigate. Jaguars move through it regularly, as documented by camera trap studies since 2010, and the park's inaccessibility has preserved a jaguar population density that is among the highest remaining in the country. The only practical access is from the Bolivian border town of Los Toldos.

Parque Nacional Baritú was established in 1974 in the Santa Victoria Department of Salta Province and covers 72,000 hectares of yungas cloud forest at altitudes between 600 and 1,800 metres. The park sits at the northern extreme of Argentina's Yungas, where the subtropical montane forest shares species with Bolivian cloud forests — including populations of spectacled bear, jaguar, tapir, and peccary that move across the international boundary. The park's inaccessibility — requiring either a cross-border approach from Bolivia or a 40-kilometre hike from the nearest Argentine road — has effectively excluded tourism infrastructure since its establishment, and the annual visitor count is measured in dozens rather than thousands. The Río Pescado and Río Baritú, both of which require crossing, drain the park's interior and host significant fish populations including species endemic to this drainage.