Owned and Farmed by Joe and Susan Hattrup, Elephant Mountain Vineyard began in 1995.

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Sitting on the southern slopes of Rattlesnake Ridge at the base of Elephant Mountain, the vineyard ebbs and flows on a series of gentle, south-facing slopes at an elevation that reaches 1460 feet at its peak. Above the Missoula Flood Plain, atop prehistoric soils, this site accumulates around 3500 GDDs annually and sees a growing season that has 30 additional frost free days compared to lower sites in the Yakima Valley.

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In 1998 the first two blocks were planted to Merlot and Cabernet Sauvignon, and since then has expanded to nearly 90 acres planted to a mix of Cabernet Franc, Grenache, Mourvedre, Petit Verdot, Petite Sirah, Syrah, Sangiovese, and Riesling.