The view from the north tower at Castello di Amorosa looking at snow on the Vaca Range. This is the Napa Valley- an officially recognized American Viticultural Area or AVA. The actual Napa Valley floor is 5 miles wide and 30 miles long. The Napa Valley currently contains 15 recognized sub or "nested" AVA's.
Castello di Amorosa's 30 acre vineyard of Cabernet Sauvignon, Merlot, Sangiovese and Primitivo is in the Diamond Mountain District AVA. Covering 5,000 acres in the Mayacamas Mountains on the northeast side of the Napa Valley, this region has over 500 acres under vine. The cool fog that influences the valley floor is not a factor here due to our up-valley location and higher elevation vineyard. Lack of topsoil, porous volcanic soil and extended exposure to the sun are reasons why world-class wines, Cabernet Sauvignon in particular, are described as bold and powerful with chewy textures and firm tannins.