The northern area of ​​Piedmont is characterized above all by the production of Nebbiolo red wines, less known than those of Barolo and Barbaresco, but certainly of certain charm and interest. Among the most famous areas for these wines we remember Ghemme and Gattinara and the DOC Carema, in the western part and near the Valle d'Aosta. Among the DOC wines of the northern area of ​​Piedmont produced with Nebbiolo, alone or together with other varieties, should be mentioned Lessona, Bramaterra, Boca, Sizzano and Fara. The Erbaluce is instead a white grape with which dried but also extraordinary Passito wines are produced, belonging to the Erbaluce di Caluso DOCG denomination. Piedmont produces more DOCG wines in volume than any other Italian wine region with almost 84% of all wine production areas that fall under the DOCG denomination. The area has no classification as Typical Geographical Indication (IGT), unlike Tuscany, where IGT or Super Tuscans wines constitute a significant part of the wine production of that region. Some varietal style wines are produced in Piedmont with the name of the grape and city that both appear on the label. Some examples of DOC include Barbera d'Alba, Barbera d'Asti and Dolcetto di Dogliani produced entirely from Barbera and Dolcetto grapes