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Our Vineyards

We knew early on that we wanted to own our own vineyards. Having control over each step of the growing process – and deeply understanding the land by farming it year after year – is crucial to cultivating the highest quality grapes and making ultra-premium wines. Our estate vineyards in the Diamond Mountain and Moon Mountain District AVAs are integral to our mission at Theorem Vineyards: to uncover the truth of the land. We are fortunate to work side-by-side with Josh Clark, one of Napa Valley’s most talented vineyard managers, who has guided and advised us as we’ve restored, reconfigured and replanted these remarkable vineyard sites.

Diamond Mountain District AVA

Our estate vineyard on Diamond Mountain spans 20 planted acres of hillside land on the northern slope of the mountain. Divided into nine blocks planted to Cabernet Sauvignon and one to Merlot – the vineyard shares the land with approximately 20 acres of natural forest, and the undulating hills result in numerous elevations, aspects, and microclimates. Because of its high altitude, the vineyard is blessed with little fog, abundant direct sunlight, and volcanic soils that heat and cool quickly.

  • Soils: Aiken Loam, Boomer Loam
  • Acres: 20 planted
  • Varieties: Cabernet Sauvignon (19 acres); Merlot (1 acre)

Moon Mountain District AVA

Our spectacular 34-acre property on Moon Mountain District straddles the Napa/Sonoma County line. At 1800 feet elevation, the vineyard’s 15 planted acres are located near the highest point of the mountain. Bordered by Napa’s Mount Veeder on the east side, the site’s shallow, volcanic soils and craggy peaks are alternately grazed by sunlight and crosswinds off the Pacific Ocean, creating a microclimate ideally suited for growing grapes.

  • Soils: Clay Loam
  • Acres: 15 planted
  • Varieties: Cabernet Sauvignon, Syrah, Chardonnay, and Sauvignon Blanc

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We look forward to hearing from you and, hopefully, sharing a glass of wine or two very soon.

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