In Napa Valley, where time is measured in harvests and heritage, the Trefethen family continues to stand firm among a dwindling group of multigenerational vintners.

Founded in 1968, Trefethen Family Vineyards remains one of the few independently owned and operated wineries in the region. As industry consolidation accelerates and consumer preferences shift, maintaining that legacy has become increasingly challenging.

"Preservation takes work," said Lorenzo Trefethen, a third-generation member of the family now helping lead the winery. "Just because we are preserving something doesn't mean we're not scrambling to keep it that way. It's been interesting to watch Napa Valley change."

According to the Napa Valley Vintners trade group, fewer than one-third of Napa wineries today are still own

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