The Horse Heaven Hills AVA is an American Viticultural Area in southeastern Washington, and is part of the larger Columbia Valley AVA. The Horse Heaven Hills AVA borders the Yakima Valley AVA on the north and the Columbia River on the south. Elevations in this AVA range from above sea level in the south to above sea level at the northern boundary. Grapes planted in the south-facing slopes of the Horse Heaven Hills benefit from strong winds that arrive from the west via the Columbia Gorge, reducing the likelihood of rot and fungal diseases.