Argentina’s wines are produced in many regions, spanning over 2000km. Mendoza is most popular and perhaps the biggest, at least in terms of production. Responsible for 80% of Argentina’s wine production Mendoza rests alongside the Andes, where irrigation from the mountains and high altitudes are favorable for wine growth. Argentina’s other wine regions include: Salta, Rio Negro, San Juan, La Roja and even Patagonia. Patagonia aside, these wine regions all reside on the western border of Argentina where run off from the Andes can irrigate the vineyards, but warmer inlands are available for producing fine grapes.