Rising nearly 2,600 feet above sea level on the rugged crest of Howell Mountain, Rattlesnake Ridge is among the highest-elevation vineyards in all of Napa County. From its windswept perch above the valley floor, the vineyard feels worlds apart from Napa's more familiar landscapes—a place defined by stark beauty, dramatic vistas, and ancient volcanic origins.
Beneath the vines lies a mosaic of red volcanic soils and pale tufa deposits, remnants of a violent geological past. Millions of years ago, volcanic eruptions blanketed the region in ash, lava, and fractured rock. Over time, these materials weathered into the distinctive iron-rich red soils that dominate Howell Mountain today, while pockets of porous tufa—formed from compacted volcanic ash—remain scattered throughout the site. These rocky, low-vigor soils naturally restrict vine growth, forcing roots deep into the mountainside in search of water and nutrients. The result is fruit of remarkable concentration, intensity, and character.
The elevation shapes the vineyard as profoundly as the soils. Bathed in brilliant sunlight above the fog line yet tempered by cool mountain nights, the vines experience a long, measured growing season. This dramatic diurnal shift preserves freshness and acidity while allowing flavors to develop slowly and completely. The mountain air carries the scent of sun-warmed chaparral, pine, and wild sage; the rocky slopes radiate heat by day and release it after dusk, creating a uniquely balanced environment for ripening.
The wines of Rattlesnake Ridge capture the essence of this extreme site. Dark blackberry, mountain blueberry, and black cherry are layered with notes of crushed rock, baking spice, cedar, and wild herbs. Powerful yet precise, they possess a distinctive mineral tension and structural depth that speak directly to the vineyard's volcanic origins. Both commanding and graceful, Rattlesnake Ridge stands as one of Napa Valley's most compelling expressions of mountain-grown Zinfandel and Petite Syrah—wines shaped by altitude, ancient geology, and an unwavering sense of place.
