Rioja is nestled in northern Spain, stands as the country's region with the highest reputation. The region includes the administrative district of La Rioja and extends into the Basque Country and Navarre. The wine region is divided into three sub-regions, Rioja Alavesa, Rioja Alta and Rioja Baja. Some of the best wines of the world are Spanish wines from Rioja.
Its borders are shaped by the Ebro River and sheltered by the protective mountainous terrain of Sierra de la Demanda and Sierra de Cantabria. The Rio Oja, a tributary of the Ebro, lends its name to this surrounding area. Rioja benefits from a favorable climate, while its shelter from strong Atlantic winds provides a favorable environment for wine making and ensures long periods of warmth, especially in summer. The two rivers provide a humid, temperate, continental climate, with little but sufficient precipitation, evenly distributed throughout the year. The perfect conditions for growing grapes. The region avoids large temperature swings and frost risks, common in other parts of Spain.
The hilly riverbank locations with iron, clay and chalk soils combined with a temperate continental climate contribute to Rioja's unique terroir. Its vineyards are characterized by a diverse range of grape varieties, including the famous Tempranillo, Garnacha, Graciano, Mazuelo, Viura, Malvasía and an assortment of white grape varieties.