This is not a wine area that I know at all. Based in the area south of Cordoba, it was news to me they cultivated wine. This is probably because the area is known for its sweet dessert wines, which I don’t like. However I recently tried a nice dry white Wine from this region, so seems a closer examination may be required.
I’ve included two links below for those of you who’d like to learn more. The first is the official website of this DO. It is available in English but is a bit dry. The second is the Wikipedia link which is an easier to read summary,