Columbia Valley is the largest of Washington State's wine growing regions, with almost 11 million acres. It encompasses a number of smaller regions, including Yakima Valley, Walla Walla Valley, Red Mountain and more. The vast area consists of a range of climates, allowing viticulturists to plant a diverse selection of grape varieties. Most wineries plant rows sparsely, which helps the vines survive the harsh winters.
is the most popular and most planted grape of the area, followed by Cabernet Sauvignon
are also popular and continue to grow in acreage.