United States · California

Trefethen

Trefethen Family Vineyards is one of Napa Valley's historic estates, established in 1968 by Gene and Katie Trefethen on 600 acres in Oak Knoll, the coolest sub-appellation in Napa, where Pacific marine influence from San Pablo Bay moderates temperatures significantly. The estate is best known for HaLo, a Cabernet Sauvignon-dominant blend sourced from the oldest and most distinguished parcels, and for a strong program of single-varietal Cabernet Sauvignon. HaLo leads at auction with 32 lots averaging $151 per bottle and the 2010 vintage most traded; the Library Selection Cabernet Sauvignon from 1992 averages $115. The reserve Cabernet Sauvignon program averages $65 across 20 lots with the 1995 vintage among the most collectible. The estate's 1886 winery building — a National Historic Landmark — and the unusual cool-climate character of Oak Knoll distinguish Trefethen from the warmer Napa benchmarks. Dragon's Tooth, a Malbec-dominant red blend, is a more recent addition averaging $37. Top auction prices have reached $549, with overall averages of $97 reflecting the estate's serious but not trophy-tier positioning. For collectors seeking structured, food-friendly Napa Cabernet that rewards a decade of cellaring, Trefethen's cool-climate pedigree is a differentiating factor.