
We’re a boutique Sonoma winery producing Syrah, Grenache, Pinot Noir, Chardonnay, Roussanne and Viognier. We have elected to prize quality over all other factors. Simply put, we think wine should taste great — with every vintage and every grape, this is our ultimate priority and our greatest motivation. Our working winery is located in Santa Rosa, where our small team puts in their passion and dedication to make Donelan one of the best Sonoma wineries for top-tier Syrah and private tastings.
Obsidian Vineyard Syrah is bathed in terroir. The vines experience severe stress, pushing the roots ever deeper through rock in search of water, producing miniature clusters of intense power. Given the wine’s natural propensity for tannin, we take extreme care in the cellar to chisel/whittle its rough edges and leave room for richness to flatter its distinctive scaffold. The mid-palate supports flavors of roasted coffee beans, sarsaparilla, and dark chocolate. The finish marches on long after most wines have tired.
Our estate vineyard — the six-acre Obsidian Vineyard in the Knights Valley AVA — has an incredibly complex soil structure. It takes its name from a layer of volcanic obsidian rock that was discovered when we drilled for water.
Chocolate ganache, black currants, fig, graphite, and an expansive mouthfeel.
Review:
"Joe Donelan believes his Obsidian Vineyard is one of the world’s greatest sites for Syrah. I’ve visited the site twice, and can say candidly it certainly sits among the most striking vineyards I've ever laid eyes on within the U.S. It sits like a rock on a promontory—two switchbacks to reach the top—and the stones under the top soil, quite literally, never stop emerging from the ground. The place has an ancient, almost sacred, temple-like feel. It is consistently swept by afternoon breezes. The vineyard was replanted in 2017 after fires ravaged it. Winemaker David Milner laid out the site at denser spacing than before, at 2,000 vines per acre to keep yields per vine low while still achieving sensible tonnage, averaging around three tonnes per acre. Viognier was planted for co-fermentations, alongside some Cabernet Sauvignon, for a single vineyard bottling of that grape. ‘God put on his viticultural hat when he designed this site,’ says Milner. The vineyard is planted with ENTA 174, 877, and Alban 1 clones, along with Donelan Heritage selections certified virus-free. The wine, the 2023 vintage release (the first from the new vines), was aged for 21 months in 36% new oak and co-fermented with 1.8% Viognier, using 32% whole clusters. And it is positively gorgeous: composed of nine different blocks, each fermented separately, then assembled through sequential blending, with no racking until bottling. From just five-year-old vines, this wine is utterly extraordinary—something oddly achievable from young vines on rare occasion. I tasted this wine from the same bottle over three days. While the high-toned espresso-bean and cedar accents are present at first pull of the cork, they mellow out a day later, and the fruit profile is so vibrant. This is the sign of an excellent wine. I first tasted wines from the Donelan’s Obsidian Vineyard years ago at Tasting Panel Magazine in the late, great Anthony Dias Blue’s office. Cushing Donelan showed the wines, and to this day, I recall the first moment I put my nose into a glass of Obsidian Syrah. In early January of 2026, as I nosed this brand new release of Obsidian Syrah, I was transported straight back to that tasting twelve years ago. What’s remarkable is that the aromatics are unmistakably the same, yet from these new, more densely planted vines, the aromas are more refined—precision-farmed wines from young vines delivering a level of detail and poise that feels beyond their years. So what’s in the glass? Pure red, black, and blue fruit nuances layered with tobacco, white truffle character, violet pastille, and an intoxicating perfume. White pepper notes emerge on the medium- to full-bodied palate, framed by velvety tannins. Iron-like and crushed slate minerality underpins dazzling black cherry and blackberry fruit, brown spices, and blood orange richness. There’s a velvety, iron-fist quality here that exudes polish, complexity, and undeniable quality. You want to drink it now—and you absolutely can—but it will also reward time in the cellar. Either way, you’ll be utterly wowed. And when you realise the price is under £100, the achievement becomes even more staggering. As these vines mature, what will become of them in subsequent vintages? I suspect that as the vines mature, they'll go in and out of phases, but so long as Mother Nature cooperates, I expect this wine to continue to dazzle each vintage. - Jonathan CRISTALDI"
Decanter (January 5th 2026), 100 points
This is the first vintage of the Obsidian Syrah after wildfires torched the vineyard in 2017, leading to significant redevelopment. Throughout all those years, the Donelans have exhibited remarkable patience and a clear sense of purpose. This is their reward: a truly magnificent, towering wine of the highest level.
Knights Valley is one of the most magical grape-growing districts in the United States, but it is not very well known because only a few estate wineries are located there.
The 2023 Syria Obsidian Estate is one of the most profound, moving wines I have tasted in Sonoma County. Blackberry, gravel, incense, chocolate, lavender, and dried herbs race out of the glass. Delicate yet powerful, the 2023 is spectacular. It is also very fairly priced in today’s market.
Vinous 100 Points
The Gigondas appellation is naturally delimited by the Dentelles de Montmirail to the east and the upper plateaux of the Ouvèze River to the west. The rugged topography of the Dentelles, amazing limestone pyramids, protects the vines from excessive summer heat and the full force of the mistral. Our vines grow on steep terraces up to 400 metres in altitude.
This Cru Gigondas displays a fine balance between freshness and an impression of sweetness due to old Grenache vines planted at high altitude. The wine is big on the palate, with a dense texture of rich, ripe tannin. Its polished personality reflects a top-rate terroir.
Review:
"Very full, rich and luxurious in style with ripe red berries and some rich, meaty fruit coming through on the palate; grainy and gritty tannins, with plenty to chew on. Feels youthful and tight but harmonious. The lovely acid line brings precision and pep. Tapered finish. Very appealing!"
- Decanter WWA 2022, 96 points and Gold Medal
Ruttenstock Gruner Veltliner Weinviertel Klassik is a white wine made of 100% Gruner Veltliner.
The wine offers a touch of pear, spice and dried fruit aromas on the nose, and exotic fruit characters.
Minerality emerges from the primary rock soils, followed by an elegant and lively finish.
Good food companion to many dishes; chicken, pork, fish or cold appetizers.