On the eastern side of the Andes, in the region of stunning foothills and high plains, is Argentina’s Napa Valley. The Uco Valley in Mendoza has rapidly become one of the most talked about and exciting wine regions in the southern hemisphere. Originally created as a stopping point in the crossing of the Andes on the commercial route from Río de la Plata to Chile’s Santiago, Mendoza has become the largest wine-producing area in Latin America, claiming 70% of Argentina’s wines. The Uco Valley, with its…