Martinez Corta produces Tempranillo-based wines from Rioja, Spain's premier red wine region. The winery's portfolio centers on expressions of this classic Spanish varietal, which thrives in Rioja's continental climate and limestone-rich soils. Cepas Antiguas Selección Privada and Soros Crianza represent the core offerings, both drawing from Tempranillo's characteristic structure and dark fruit character. The Cepas Antiguas line extends across multiple bottlings, reflecting different selections from the vineyard. Tempranillo in Rioja develops with notable tannin and acidity, aging gracefully into wines of depth and complexity. Wine Spectator, Wine Enthusiast, and Wine Advocate have all assessed Martinez Corta's releases, providing critical perspective on the winery's work.