The Walla Walla Valley is quickly becoming Washington's most prestigious and talked-about wine region out of the state's five appellations. It is also the most remote, located on the southeastern border of Washington and Oregon. Named after the city of Walla Walla in Washington, this region produces some top notch Bordeaux varietals on its 1,800 acres of vines, namely Merlot and Cabernet Sauvignon: Walla Walla's two signature varietals.