• Washington's largest viticultural region, covering almost 11 million acres (4,451,700 hectares) representing a full third of Washington State's land mass.
  • More than 17,000 vineyard acres (6,880 hectares) of wine grapes planted and approximately 15 wineries.
  • Columbia Valley's vast size allows for a number of meso and micro-climates.
  • Vineyards planted on predominately south-facing slopes, increasing solar radiation in summer and promoting air drainage in winter.
  • Merlot is the most widely planted varietal, followed by Cabernet Sauvignon and Chardonnay.
  • Riesling and Syrah are also planted in significant quantities.
  • Growing season of 180-200 days with annual rainfall averaging 6 to 8 inches (15-20 cm).
  • Columbia Valley contains Red Mountain and both the Yakima and Walla Walla Valleys within its borders.
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