Water to Wine and the Napa Valley Posted On: February 19, 2019 By: admin The Napa Valley is just 30 miles long and just 5 miles across at its widest point. Inside of this beautiful little valley is 46,000 acres of planted vineyards. A typical vineyard with a modern spacing of 4′ x 7′ has 1500 vines to the acre. Although these two numbers are just rough approximations it shows that there are at least 69,000,000 grape vines in the Napa Valley. Grape vines can consume between 2 to 6 gallons of water a week from July through harvest. When we put this picture together it basically shows that the Napa Valley converts water to wine. The winter of 2019 showered the Napa Valley with abundant rainfall. The slopes of Mount Saint Helena were covered with snow and the Napa River flowed at high levels through the valley. The water flowed and the valley rejoiced. The “Water to Wine” video starts at Mount Saint Helena and travels down the Napa River until it flows into the San Pablo Bay. At each bridge, the levels of the river rise as thousands of little tributaries channel into the river. Finally, as the river flows into the San Pablo bay the river is a huge current returning to the ocean.