Our Moon Mountain District Cabernet Sauvignon is the counterpoint to Diamond Mountain — same obsession, different voice. Where Diamond Mountain Cabernet is driven by volcanic intensity and dark fruit concentration, Moon Mountain brings a cooler, more aromatic profile — the Pacific and San Pablo Bay crosswinds doing work that no winemaker can replicate in the cellar. Perched between 1,600 and 1,800 feet, the vineyard lives above the fog line with steady crosswinds funneled from the Pacific and San Pablo Bay. It's typically 10–15°F cooler here than on Diamond Mountain, yielding longer hang time, fresh natural acidity, and aromatics that — as Kisha puts it — "hits your nose in a different place."
Planted in 2004 to Bordeaux Clone 4, these mature Moon Mountain District Cabernet Sauvignon vines deliver concentration without heaviness. We ferment in small lots, age in French oak (about 60% new), and blend with a light hand to let the site lead. The result is a Cabernet that's structured and concentrated, yet lifted, aromatic, and unmistakably Moon Mountain.
Black Plum. Sage. Graphite.
In the glass: ripe blackberries and black plum with savory bay and sage, graphite, and cedar; fine, persistent tannins. The cooler site brings clarity and line — a beam of acidity that carries the finish and keeps the wine poised at the table. Beautiful on release, it hits its stride 5–10 years after vintage and easily capable of 15–20 years in the cellar.
“Moon Mountain Cabernet is more aromatic—almost ethereal.” —Kisha Itkin, Founder & CEO
“One of our more structured wines, but never abrasive—power with amazing texture.”
— Andy Jones, Winemaker
Tasting Notes
Moon Mountain Cabernet Sauvignon
Theorem's Moon Mountain District Cabernet Sauvignon is estate-grown in the Moon Mountain District AVA above Sonoma and Napa Valley — a rugged mountain appellation on the eastern slopes of the Mayacamas, where Pacific and San Pablo Bay winds meet iron- rich volcanic rock.
Daily sun with afternoon winds from the Pacific and San Pablo Bay.
Cooler by 10–15°F
Longer hang time, vivid aromatics, and fresh natural acidity.
Older Vines (Planted 2004)
Clone 4 Cabernet with depth and consistency.
Age-Worthy
Graceful now; hits stride in 5–10 years, ages 15–20 with ease.
An aerial view of Theorem Vineyards' hillside estate, with intimate shots of a hummingbird among lavender, blooming flowers, and vines, followed by wine being poured and aging in oak barrels.
