Rio Perdido produces wines from Mendoza, Argentina's premier wine region. The winery focuses on two cornerstone varietals: Malbec and Cabernet Sauvignon, both grapes that thrive in Mendoza's high-altitude terroir and intense sunlight. The Malbec, the region's signature varietal, shows the dark fruit and structured tannins characteristic of the area, while the Cabernet Sauvignon reflects the precision and balance that Mendoza's continental climate imparts. Both wines have been assessed by Wine Spectator and Wine Enthusiast, establishing a presence among prestige critics. Rio Perdido's portfolio centers on these two red varietals, each expressing the mineral-rich soils and diurnal temperature swings that define Mendoza winemaking.