Casteller DOC is located in southern part of the province of Trentino, to the north of Lake Garda and the city of Verona. The appellation covers only red wine making at the moment, with a minimum of 50% Merlot required. This can be blended with a number of different local varieties, including Schiava Grossa, Schiava Gentile, Lagrein and Teroldego. There is actually very little wine bottled under this denomination.