This picturesque region follows the steep valleys of the Mosel, Saar and Ruwer Rivers that flow north toward the Rhine. It is home to the some of the most beautiful, delicate and age worthy Rieslings in the world. Due to limitations of the landscape, the region has only 8800 ha of vines mostly growing in steep terraced vineyards anchored on thin slatey soils. The rocky soils absorb the essential warmth that this cool region requires to ripen the fruit. Many wines from the Mosel are produced according to the Prädikatswein classification based on the ripeness of the grapes at harvest and the style of wine produced. Although dry styles are made, the region is best known for sweeter wines that range from the lightest Kabinet, to Spätlese, Auslese to the very sweet botrytis dessert wines of Beerenauslese (BA) and Trockenbeerenauslese (TBA). The sweet and delicate, perfumed wines tend to be low in alcohol 6-9% with nervy acidity and slatey mineral undertones. The best vineyards are found around the Villages of Piesport and Bernkastel.