All grapes come from the historic Napanook Vineyard in Yountville, on the west side of Napa Valley.
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Location / Origin: The vineyard is situated in a natural amphitheater at the foot of the Mayacamas Mountains. George Yount planted some of the first vines in Napa Valley here as early as 1838, making Napanook one of the region's historic vineyard sites.
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Soil: The vines root deeply in rich, gravelly clay loam. The plots slope at approximately 3–10%, allowing excess water to drain naturally, while underground springs provide a natural water supply via ancient riverbeds.
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Vineyard Management: Dominus Estate farms organically and without routine irrigation. The 134-acre Napanook Vineyard currently has 102 acres under vine; deep rooting and a living soil are central to the estate's approach.
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2023 Vintage: From July 2022 to June 2023, 51 inches of rain fell compared to a historical average of 31 inches. A mild spring and veraison occurring about 2 weeks later than usual extended the growing season, followed by a harvest under excellent conditions between October 7 and 18.