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At a glance…

Sub AVAs:  6
Location:  Not surprisingly, the Columbia River Valley AVA is defined be the geology of the Columbia River is also the border of much of Washington and Oregon.  The AVA is primarily contained in Washington but has a small section in Northern Oregon as well.
Climate:  The Climate for most of the Columbia River AVA is very dry due to the rain shadow cast by the formidable Cascade Mountains to the west.  Much of the area is classified as high desert and receives between six and ten inches of rain per year so extensive summer irrigation is often needed.  Winter lows often reach the single digits.
Comments:  Although situated in a high desert, their is abundant water available from various rivers allowing for controlled irrigation to match individual vine needs.

Sub AVAs

Sub AVAs Containing Micro AVAs

Ancient Lakes AVA
     Location:  Central Washington

Lake Chelan AVA
     Location:  North Central Washington adjacent to Lake Chelan

Naches Heights AVA
     Location:  South Central Washington

Wahluke Slope AVA
     Location:  South Central Washington

Walla Walla AVA
     Location:  Southeastern Washington

Yakima Valley AVA
     Location:  South Central Washington

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Yakima Valley AVAContains Red Mountain AVA

Yakima Valley AVAContains Snipes Mountain AVA

Yakima Valley AVAContains Rattlesnake Hills AVA

Yakima Valley AVAContains Horse Heaven AVA

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