Argentina - Valle Calchaquí

The Valle Calchaquí The Valle Calchaqui forms a 250 km narrow north-south strip along the Calchaqui river, between the structural units of La Puna and the Oriental Mountain Range. A bunch of secondary valleys and gorges, both longitudinal and transversal, build up the tributary system of the Calchaqui river. Las Conchas gorge is, in turn, a deep fluvial valley of 75 km long, that spreads from Alemania town to the joint of Calchaqui and Santa Matia rivers. Present environment Both the north access through the Cuesta de/ ObNpo (Bishop's Slope), as well as the southern one through the Las Conchas gorge, present landscapes of extraordinary beauty and singularity, that mark the entrance to this particular geography. It is also connected, in the north, with the andean town of San Antonio de los Cobres through the mountain pass called Abra de/ Acay.