Wine-growing is a major activity along the Rhine, Moselle and Ahr valleys and in the Wittlich Basin. In the Wittlich Basin, tobacco is also grown. At Holsthum in the Prüm valley, in the lee of the Ferschweiler Plateau, hops are grown for the Bitburger Brewery. However, at high altitudes in the Eifel, only forestry and dairy farming are generally possible.