There's a gentle majesty to the mighty oaks of the upper Napa Valley. Scores of these venerable 300-year oak trees stand in testament to the proud heritage of Diamond Oaks' home in the winegrowing district of Calistoga. Just as the oaks endure, so does a respect for the integrity of this remarkable viticultural district. Careful stewards of the land, the Maniars now join the ranks of generations of winemaking families committed to the dignified vitality of this historic region.