Agua Negra Pass, Mountain pass between Argentina and Chile in Andes mountains.
Agua Negra Pass is a mountain crossing in the Andes that links Chile's Coquimbo region with Argentina's San Juan Province. The terrain sits around 4,780 meters high and shows bare rock formations with minimal plant life.
The pass opened in 1965 as a transit route between the two countries but closed in 1977 during political tensions. It reopened to public access in 1994 and has served as a regular border crossing since then.
The pass connects two nations and reveals how Argentine and Chilean mountain traditions meet in one place. Visitors experience this blend through the ways people live and interact along the crossing.
The route opens only from December through April, with weather and snow conditions determining exact opening dates. Visitors should check conditions beforehand and bring warm clothing, as mountain weather can change quickly.
A new tunnel is being constructed beneath this pass and will stretch around 14 kilometers to improve crossing conditions. The project will include facilities for scientific research, making the location valuable for mountain studies.
The community of curious travelers
AroundUs brings together thousands of curated places, local tips, and hidden gems, enriched daily by 60,000 contributors worldwide.
