Private Wine Tasting
Experience Theorem Vineyards
Private Tasting Experience
Perched on Diamond Mountain in Calistoga, Theorem Vineyards offers one of the most intimate and enchanting wine tasting experiences in Napa Valley. With panoramic views of Mount St. Helena and our heritage vineyard, historic buildings, and aromatic culinary gardens, every visit is as much about the place as it is the wine. We welcome guests by appointment only to ensure each visit is private, personal, and unhurried.
Private Tours
& Tasting
In the hills above Calistoga, time moves differently, and the truth is poured. Walk our winery estate with glass in hand, taking in vineyard rows that climb toward ridgelines and mountain views that frame the architecture of some of Napa Valley's most historic buildings. The wines match the setting: single-vineyard, single-varietal expressions from tiny vineyard blocks on Diamond Mountain in Napa Valley and Moon Mountain in Sonoma Valley — volcanic soils, high elevations, and microclimates that make each wine a pure expression of place. Each tasting is accompanied by a chef-crafted cheese and charcuterie plate with estate-grown and Theorem Ranch accoutrements, thoughtfully composed to complement the wines. Friday-Monday experiences can only be reserved by contacting us, with Keepers of the Key receiving priority access. Weekday experiences may be reserved online.
Private
Group Experiences
Theorem also welcomes intimate, tailor-made experiences for private groups to our
mountaintop winery — from bespoke Napa Valley winery lunches to milestone celebrations
and full estate buyouts. Our Calistoga estate is available to those seeking a luxury
hospitality experience grounded in food, wine, and design. Whatever you're envisioning,
our team will help bring it to life.
Theorem is a discovery — the kind of exclusive
Napa winery that rewards those who seek it out. We’re glad you’ve found us. From
the restored Cole House and schoolhouse to the Long Barn patio with its panoramic
views, our estate invites you to slow down, taste, and discover the truth of our
two mountaintop vineyards.