A bottle of Syrah displayed on an elegant table setting, with views of the vineyard, grape clusters, aging barrels, and wine being poured.

Mountain Syrah

High Elevation. Old Soul.

Moon Mountain District

Born at high elevation above Napa and Sonoma valleys, where coastal winds meet volcanic rock.

Wild Aromatics, Mountain Nerve

Moon Mountain Syrah

Coastal lift, volcanic grip, and whole-cluster swagger.

Perched between 1,600 and 1,800 feet on our Moon Mountain estate, this Syrah vineyard marries warm, sunlit days with cool, marine nights driven by Pacific and San Pablo Bay. Volcanic soils and a steady afternoon breeze deliver power and freshness in equal measure.

Planted in 2004, with a light hand: select whole-cluster fermentation (increasing over time), minimal new oak (often neutral), and aging sur lie with no racking until bottling at 15–16 months. Small lots stay separate before blending this Moon Mountain District Syrah for tension, detail, and the savory, old-world profile we love.

Blackberry. Olive. Pepper & Lift.

In the glass: blackberry, plum sauce, espresso, and lavender, with savory notes of green olive, sage, amaro, and a crack of black pepper. The palate is silky yet structured—fine-grain mountain tannins, bright acidity, and a long, herbal-tinged finish. Thrilling on release with air, this Moon Mountain Syrah ages 8–15+ years with style.

“Very old-world—Syrah funk, whole cluster, and patience. It’s an age-worthy Syrah from the top of the mountain.” —Andy Jones, Winemaker

“Syrah isn't polite — and that's the point. Aromatics, chew, and a little wildness. We're obsessed.”
— Kisha Itkin, Founder & CEO

Tasting Notes

Moon Mountain Syrah

Theorem's Moon Mountain District Syrah is estate-grown in the Moon Mountain District AVA above Napa and Sonoma Valley — defined by red volcanic soils and elevations rising above the fog line.

Wild & Elegant

Power and freshness in the same glass.

  • Elevation 1,600–1,800 ft

    Big diurnal swing; warm days, cold nights.

  • Estrella Clone Syrah Moon Mountain

    Depth from mature vines (planted in 2004).

  • Whole-Cluster Fermentation

    Savory lift; increasing share each year.

  • Neutral-to-Low New Oak

    Texture over toast; aged sur lie, no racking.

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.

Beyond the Vines, a Story Unfolds

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