High Quality Content by WIKIPEDIA articles! Valtiendas is a Spanish geographical indication for wines referred to legally as Vino de Calidad con Indicación Geográfica. This is one step below the mainstream Denominación de Origen quality wines and one step above the less stringent Vino de la Tierra table wines on the quality ladder. It is located in the province of Segovia (region of Castile-Leon) and borders on the well-known wine region of Ribera del Duero.