Ahr is a wine region (Anbaugebiet) for quality wine in Germany, and is located in the valley of the river Ahr, a tributary of Rhine, and is situated in the federal state of Rhineland-Palatinate. With only 558 hectares (1,380 acres) of vines as of 2008, it is one of smaller of Germany's 13 regions. Despite its northern location (it is for example situated north of Mosel region) it primarily produces red wines, and red grape varieties account for 86% of the vineyard area, which is more than in any other German wine region.