Notes - The Estremadura is a relatively narrow strip of hilly land lying between the Tagus River and the Atlantic Ocean. It is about 60 miles long and 40 miles wide, and it contains the DOC regions of Torres Vedras in the west, Arruda in the east and Alenquer in the centre. The climate dictates the styles of wine produced in these three areas, since the vineyards closest to the Atlantic are subject to wetter and more moderate conditions and thus produce lighter, less alcoholic wines, while the vines planted further inland give stronger and fruitier wines.