Extraordinary Vineyards

Extraordinary Vineyards

Named after the black volcanic glass in the bedrock beneath the vines, our estate vineyard is one of the most unique in California. Here, the vines grow on a steep perch above the Franz Valley floor in the Knights Valley. While Obsidian is one of our warmest sites, it is also our most free draining soil, which leads to extremely low vigor, tiny berries and a flavor concentration that is nothing short of ethereal.

Learn about the latest release of Donelan Wines Obsidian Vineyard Syrah.



Vine Age

30+ years




800 ft

Finding Extraordinary Sites

For us, identifying a top-notch vineyard is like hearing a great song for the first time. It’s immediately identifiable. It has no blue-print for duplication. It won’t let go of you.

In a word, it is genuine.

From these extraordinary vineyards, we produce compelling wines year after year, doing our best to read their cues and allow their terroir to shine. The map below illustrates the depth of our obsession. From the cool-climate, redwood fringed Perli Vineyard in the Mendocino County AVA to a collection of wild sites we love in the Bennett Valley AVA, our journeys across Northern California have been exhaustive — but they have been so worth it.

More Stories About Our Vineyards

Richards Vineyard

What the Richards Vineyard has taught us is that, sometimes, the best thing we can do as winemakers is step aside and let terroir do the heavy-lifting.

Go to Donelan Richards Vineyard Syrah

Kobler Family Vineyard

In the heart of the Green Valley of the Russian River Valley, this vineyard grows Syrah and Viognier that create gorgeous and savory offerings.

Go to Donelan Kobler Family Syrah

Go to Donelan Kobler Family Viognier

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