Argentina has several wine producing regions located in the northwest part of the country in the foothills of the Andes mountains. The document discusses the key regions of Jujuy, Salta, Catamarca, La Rioja, and San Juan. It provides details on the geography, climate, grape varieties and subregions of each area. The highest vineyards in the world are located in Jujuy and Salta near the Bolivian border, with some reaching altitudes over 3000m. Torrontes is a popular white grape variety grown throughout the northern regions.