Tasting Opus One: Napa’s Most Influential Wine

Some wine tastings are about discovering a producer. An experience at Opus One is about understanding a turning point in the history of Napa Valley.

The estate emerged from a partnership that many considered impossible when it was announced. Robert Mondavi, the visionary who helped redefine California wine, joined forces with Baron Philippe de Rothschild of Château Mouton Rothschild, one of Bordeaux’s most celebrated estates. Their shared ambition was straightforward but radical: to create a wine capable of standing alongside the great wines of Europe while remaining unmistakably Californian.

That ambition still shapes every visit.

Guests arrive at an estate designed specifically for the project rather than adapted to it. Completed in 1991 by architect Scott Johnson, the winery sits low within the landscape, its limestone and redwood structure partially embedded into a curved hillside planted with vines. The architecture avoids spectacle. Instead, it directs attention outward toward Oakville’s vineyards and the valley that gave rise to the wine.

The tasting itself reflects the estate’s disciplined philosophy. Unlike many Napa wineries that present extensive portfolios, Opus One remains focused on a singular vision expressed through a single flagship wine and its companion release, Overture. Conversations naturally move beyond tasting notes into discussions of vineyard sourcing, blending philosophy, Franco-American collaboration and the evolution of Napa Valley itself.

For NOTES, this experience matters because it captures a defining chapter in California’s cultural history. Opus One is not simply a prestigious winery. It is one of the places where Napa Valley became a global wine destination, and tasting its wines within the estate that embodies that ambition offers a direct connection to that story.