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Idaho's Snake River Valley AVA application
wins Federal approval and becomes state's first appellation

 

A definite sign of Idaho's maturing wine and vineyard industry was the collaboration of wineries, viticulturists, USDA and academia to develop and submit an application to the US Department of the Treasury's Alcohol and Tobacco Tax and Trade Bureau (TTB) for American Viticultural Area (AVA) status for Idaho's Snake River Valley.  On April 7, 2007, the Snake River appellation became official.  Boundaries of the newly authorized AVA spans southwest Idaho and significant parts of Baker and Malheur counties in eastern Oregon.

Collectively, the area is a massive 8,263 square miles or 5.27 million acres, about the size of New Jersey. Its boundaries make up the now dry, 4-million-year-old Lake Idaho, which extends 149 miles northwest to southeast, from the Oregon-Idaho state line to just west of Twin Falls, Idaho. The major Oregon cities include Ontario and Baker City. When the federal government approved Idaho's first American Viticultural Areathe Snake River Valley, it also is authorized Oregon's 16th AVA.

The valley’s high altitude vineyards, long daylight hours, warm summer days and crisp evenings were significant factors in it being federally designated as a "unique" viticulture region.  The region is also a world-class maker of Riesling, and is arguably the best place in North America for 'ice wine.'

Most of Idaho's vineyards and wineries are located in this southwest portion of the state; the number of vineyards (46) do not compare with those of sister states, Oregon and Washington, but they have more than doubled in just the past five years.  Likewise, the number of Idaho wineries (23) in the area has increased significantly in the same five-year period.  Some of these wineries partner with eastern Washington vineyards for grape sourcing.  Currently there are no vineyards or wineries in the Oregon portion of the Snake River Valley AVA.

Appellation Facts:

Climate:
Located inland, and in the rain shadows of the Cascade, Sierra Nevada and Owyhee mountain ranges, the Snake River Valley receives just 10 to 12 inches of annual rainfall, most of which occurs in winter. This allows vintners to perfectly manage the plants through irrigation during the region’s relatively short (142 days on average) growing season.  This area is also characterized by hot days and cool nights in summer. This drastic diurnal temperature variation helps balance natural acids and sugars, making the grapes ideal for premium winemaking.
Soils:
There are a great variety of soil types in the Snake River Valley, predominantly sand, mud silts, loess and volcanic detritus on top of sedimentary rock. The soil types of the Snake River Valley are so diverse that soil is not a distinguishing factor in this appellation.
Topography:
The Snake River Valley AVA encompasses the now dry, 4 million-year-old Lake Idaho. With relatively low elevation (between 2,165 and 3,412 feet), this basin area appears sunken compared to the surrounding, high-elevation mountains, which exceed 7,000 feet.  Multiple mountain ranges provide a barrier from Pacific Northwest marine influences, which limits the amount of rainfall the Snake River Valley receives.  Vineyard elevations go as high as 3,000 feet ‹that’s higher than any other winegrowing regions in the Northwest). Though, most of the vineyards in Snake River Valley are at elevations between 1,500 and 2,500 feet.
Predominant Varieties:
Riesling, Chardonnay, Cabernet Sauvignon, Gewurztraminer and Merlot
 

See archived comprehensive feature story “The Evolution of Idaho’s Wine Industry… no controversy here” for information and a map (with winery locations) published prior to authorization of the Snake River Valley AVA.

Information about
Idaho's wine country evolution

     History      Viticulture     Growing         More             AVA         Catering to  
                     Research      Numbers     Vineyards    Application   to Tourism

 of wineries                      


 

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