Constant

Fred and Mary Constant's Diamond Mountain Vineyard is one of the highest and oldest Napa vineyards, dating back to the 1890's. Originally developed by the University of California Davis, there were as many as fifty acres planted by the turn of the century. During Prohibition, most of the vineyards were replanted to fruit trees or overgrown with fur trees. In 1984, eighteen acres were replanted with scions selected from nearby Diamond Mountain Ranch. The Constants produced their first estate wine in 1995.

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