Laguna Blanca is a high-altitude lake nestled within the Laguna Blanca Biosphere Reserve in the Belén Department of Catamarca Province, in the northwest of Argentina. Sitting at approximately 3,680 meters above sea level within the Puna and High Andes ecoregion, this is one of the most dramatically situated fishing destinations in South America. The lake is the largest body of water in the reserve, covering approximately 3,450 hectares, and occupies a tectonic depression surrounded by mountain ranges rising between 3,200 and 5,500 meters, with the towering Cerro Galán reaching nearly 5,912 meters. The landscape is quintessentially arid Andean — stark, windswept, and breathtakingly remote, with saline and freshwater lagoons dotting the lower elevations alongside rocky formations that define the high-altitude terrain. The climate is cold, dry, and persistently windy, with annual rainfall rarely exceeding 250 mm, making this a challenging but uniquely rewarding environment for anglers willing to make the journey.