Mas Doix produces wines from Priorat, the steep-terraced region of Catalunya known for concentrated reds from old vines. The winery's portfolio centers on indigenous varieties: Carignan and Garnacha, grapes that thrive in Priorat's schist soils and demanding climate. The 1902 Centenary Carignan, a single-varietal expression, demonstrates the mineral intensity and structure the region imparts. Garnacha appears in the 1903 Velles Vinyes Coma de Cases, sourced from old vines that yield wines of depth and complexity. Poboleda Vi de Vila, made from Grenache, rounds the core range. These wines have been assessed by Decanter, Wine Advocate, Wine Spectator, Falstaff, and Wine Enthusiast, reflecting their standing within serious wine criticism. Priorat's extreme topography and schist bedrock create conditions that push ripeness and extract, resulting in wines marked by dark fruit, mineral notes, and tannin structure characteristic of the appellation.