Altos las Hormigas is an Argentine winery located in Lujan de Cuyo in the Andean valley of Mendoza, about 800 meters above sea level, facing the Andes to the east, protected to the west by a geological fold, which extends over 206 hectares of which 40 hectares are planted with Malbec and 5.6 hectares with Bonarda. It was joined in 2011 by Jardin Altamira, a new vineyard in the Uco Valley of 55 hectares of which 32 hectares have been planted, organized into 22 plots cultivated organically from the start, the vines flourishing in the midst of a rich native flora.

Altos las Hormigas was founded in 1995 by two Italians, Alberto Antonini, a renowned Tuscan winemaker, and Antonio Morescalchi, a passionate young entrepreneur. Instead of planting Cabernet Sauvignon and Merlot, as many winemakers did in the 1990s, they turned to Malbec, a grape variety now recognized as emblematic of Argentine red wines. They are joined by Carlos Vazquez, an Argentinian agronomist who brings to the estate the benefit of his twenty years spent at Catena Zapata, who plants new grape varieties and develops terroirs that were previously unknown.