 The best known area for white wines is the so-called Rhine Terrace ("Rheinterasse"; sometimes Rhine Front, "Rheinfront") between Oppenheim and Nackenheim, which by itself is bigger than the whole of the Rheingau.A part of the Rhine Terrace, between Nackenheim and Nierstein is known as the Red Slope ("Roter Hang") because of the presence of red slate.The main red grape area is around Ingelheim, in the north of the region opposite the Rheingau.