The Rioja wine region, located in northern Spain, is renowned for its exceptional wines and rich winemaking history. The region is divided into three sub-regions: Rioja Alta, Rioja Alavesa, and Rioja Oriental (formerly known as Rioja Baja). Rioja wines are predominantly made from the Tempranillo grape, known for producing elegant, structured red wines. The region also produces white and rosé wines, with increasing focus on varietals like Viura and Garnacha Blanca. Rioja wines are often aged in oak barrels, adding complexity and oak-driven flavors.