Bodegas Alonso del Yerro is located Roa (Burgos) within the denomination of origin Ribera del Duero. Their vineyards have a concept of terroir based on their own ecosystem measured by the type of soil, the climate, the topography, the varieties and the works that are carried out on it.
A total of 26 hectares form the Finca Santa Marta since 1989 with an altitude of 840 meters, the vineyards are in the form of trellises with a yield of 30 L / hectare where the Tinto Fino variety is grown.
The winery has a production and aging warehouse where the two wines from the winery are produced: Alonso del Yerro and María del Yerro, both with French oak barrels.
The wines of Alonso del Yerro are distinguished by their special quality, Alonso del Yerro is a red wine with 12 months of aging and María del Yerro with 16 months of aging.