Columbia Valley AVA – Wikipedia

The Columbia Valley AVA is an American Viticultural Area which lies in the Columbia River Plateau, through much of central and southern Washington State, with a small section crossing into the neighboring state of Oregon.The AVA includes the drainage basin of the Columbia River and its tributaries through much of Washington. Allen Shoup, president of Washington State’s largest winery Chateau …

Link: https://en.wikipedia.org/wiki/Columbia_Valley_AVA