What 3 AVAs overlap Washington & Oregon?

• A. Columbia Gorge, Willamette Valley, Yakima Valley
• B. Walla Walla Valley, Columbia Gorge, Yakima Valley
• C. Columbia Valley, Walla Walla Valley, Columbia Gorge
• D. Columbia Gorge, Yakima Valley, Snake River Valley

Answer: (C)

These questions focus on which AVAs cross the state line between Washington and Oregon. The three AVAs that truly overlap both states are Columbia Valley, Walla Walla Valley, and Columbia Gorge. Columbia Valley runs along the Columbia River and extends into both Washington and Oregon, making it a large cross-border AVA. Walla Walla Valley sits in the Walla Walla River valley and is defined to include vineyards in both states, so it crosses the border as well. Columbia Gorge follows the Columbia River Gorge and also spans the border, with portions in each state.

The other options don’t fit because they include AVAs that are contained within a single state. Willamette Valley is entirely in Oregon, Yakima Valley is entirely in Washington, and Snake River Valley is centered in Idaho and Oregon, not across Washington.