The Nuns Fire reached Mayacamas Vineyards, one of Napa’s most iconic wine estates, near the top of Mount Veeder, on Wednesday.

But while one of the property’s historic buildings burned to the ground, the winery itself – a stone building constructed in 1889 – remains intact.

The burned structure, confirms Mayacamas estate manager Jimmy Hayes, was a building they call “the residence.” It operates as a hospitality center for the winery (though Mayacamas is generally not open to the public for tastings). “If you imagine originally there was this freestanding stone distillery building, and on two occasions it was expanded upon to become a larger residence,” Hayes said. “That building was completely destroyed.