When Barry and Audrey Sterling bought a prune farm in Green Valley in 1976, they were told it was too cold. They proved the doubters wrong. Iron Horse has poured sparkling at the White House across seven presidencies since Reagan. The redwood barn tasting room sweeps to Mt. St. Helena.













Daily by reservation · tables overlooking the estate vineyards · bring your own picnic












When Barry and Audrey Sterling bought an abandoned prune farm in Green Valley in 1976, they were told it was too cold to grow grapes. They proved the doubters spectacularly wrong. Iron Horse is now one of America's most celebrated sparkling wine estates and one of the few American wineries dedicated to estate-grown sparkling wines. The estate's Thomas Road Vineyard, planted on Goldridge sandy loam soils above the fog line, produces the Chardonnay and Pinot Noir that forms the backbone of their traditional-method sparklers.
Classic Vintage Brut, Green Valley of Russian River Valley: the flagship sparkling, estate-grown, crisp and toasty, in the lineup poured at the White House since the Reagan-Gorbachev summit.
Blanc de Blancs, Green Valley: a 100% Chardonnay sparkling of finesse and citrus precision.
Brut Rosé, Green Valley: mostly Chardonnay with a touch of Pinot Noir; delicate and red-fruited.
Thomas Road Pinot Noir, Green Valley: the flagship still Pinot, vibrant and silky.
Estate Chardonnay, Green Valley: beautifully structured and nuanced from the cool estate vineyard.
The first Iron Horse Chardonnay came in 1978 and the first sparkling in 1980. About 160 acres of the estate are under vine, planted exclusively to Pinot Noir and Chardonnay for both still and sparkling wines.
Barry and Audrey Sterling founded Iron Horse in 1976 at the end of a winding one-lane road on 300 acres of fog-kissed Green Valley hillside. Three generations of the Sterling family now live on the property. The outdoor "tasting room", a rustic redwood barn, looks out across Sonoma County to Mt. St. Helena. Estate production centers on traditional method sparkling wines (Brut, Blanc de Blancs, Blanc de Noirs, Wedding Cuvée, Classic Vintage Brut), plus six Chardonnays and eight single-vineyard Pinot Noirs. Tastings are by reservation ($35 per person, complimentary for wine club members); picnic tables can be reserved ($50, two-bottle minimum, one complimentary for wine club members); weekend magnum tastings from late August to early November ($95 per person, $65 for club members) are the estate's crown experience.

David Munksgard has been winemaker and chef de caves at Iron Horse Vineyards since 1996, with the 2025 harvest marking his thirtieth vintage on the estate (he is now transitioning toward a Winemaker Emeritus role). A Fresno State-trained enologist who arrived with experience in both the Russian River Valley and New York's Finger Lakes, he crafts Iron Horse's celebrated estate-grown sparkling wines and still Chardonnay and Pinot Noir entirely from the family's Green Valley vineyards. Founded by Barry and Audrey Sterling in 1976 and now run by their children Joy and Laurence Sterling, Iron Horse is a Green Valley pioneer whose sparkling wines have been poured at the White House across seven consecutive administrations, and celebrates its fiftieth anniversary in 2026.

Joy Sterling is the CEO of Iron Horse Vineyards, the Green Valley estate her parents, Barry and Audrey Sterling, founded in 1976 after first glimpsing the fog-kissed property in the pouring rain. Three generations of the Sterling family live on the 300-acre estate, famous for its estate-grown sparkling wines, poured at White House state dinners across decades, alongside Chardonnay and Pinot Noir. A former journalist and author, Joy is the winery’s public voice and steward, carrying forward her family’s vision of place-driven wines with a celebrated open-air tasting terrace.