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Snake River Valley Vineyards
Southwestern Idaho and eastern Oregon, along the Snake River in the high desert

Snake River Valley

Idaho's emerging high-desert wine region, where altitude and cold nights preserve acidity in Riesling and Syrah.

Overview

The Snake River Valley AVA covers much of southwestern Idaho and a small portion of eastern Oregon, making it the largest wine region in Idaho. Vineyards sit at roughly 2,100 to 3,400 feet elevation on a basin floor surrounded by mountains, far from Pacific maritime influence. The high altitude creates intense sunlight, a short growing season, and dramatic day-night temperature swings.

Riesling, Chardonnay, Gewurztraminer, and Syrah are the leading varieties, though Cabernet Sauvignon, Merlot, and Tempranillo are increasingly planted. Irrigation from the Snake River is essential in the semi-arid climate. The region's cold winters can damage vines, but also allow for ice wine production in suitable vintages.

Key Varietals

  • RieslingThe leading white, producing crisp, mineral wines with bright citrus and floral notes.
  • SyrahA Rhone red that thrives in the high-desert heat and cool nights, giving dark fruit and pepper.
  • ChardonnayA cool-climate white with green apple, citrus, and clean mineral character.
  • Cabernet SauvignonA later-ripening red that succeeds in the warmest, most sheltered Snake River Valley sites.

Region snapshot

Climate
Semi-arid high desert with intense diurnal shifts, a short growing season, and cold winters
Rainfall
Around 10-12 inches annually, mostly in winter
Soil Types
Loess, sand, flood-deposited silt, and volcanic-derived sediments from ancient Lake Idaho
Country
United States

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