Abruzzo is located in central Italy, stretching from the Apennine Mountains to the Adriatic Sea. Although geographically central, it is sometimes considered part of Southern Italy given its historic association with Sicily. Winemaking dates back to the sixth century B.C. when the Etruscans introduced viniculture to the area. The geographical makeup of Abruzzo ranges from rugged mountains, a long coastline, and lush forests that account for the abundant sunshine and rainfall, as well as varying climates which are ideal for grape growing. Due to the cool mountain air and varying daily temperatures, along with greater rainfall with increased altitude, grape vines flourish. The majority of vineyards are found in the hilly areas, which benefit from a range of calcareous clay soils as well as soils of iron and limestone mix. In the last 40-50 years, Abruzzo has seen a revival in viniculture, with quality-driven and boutique wines becoming more prominent in recent times. Home to one DOCG and 5 DOCs, the native red Montepulciano and white Trebbiano dominate the grape varieties used in winemaking, with some influence by other native and some international varieties. In 2008, Tullum was named the first territorial DOC in Abruzzo. Also the smallest DOC in Italy, bottling is only allowed within the area of Tollo.