Viticulture and Oenology
Produced by the Walla Walla Valley Wine Alliance, this map depicts the Walla Walla Valley AVA (American Viticultural Area), which crosses state boundaries. The Walla Walla Valley AVA extends from Southern Washington to Northern Oregon.
Winter, John, "Walla Walla Valley Viticultural Area" (2000). Spofford Station Documents. Document. Submission 12.