CLOS DU VAL
STAGS LEAP DISTRICT
VINEYARD 150 Acres
Clos Du Val Vineyards
Our story began with 150 acres in the Stags Leap District, which became a world-renowned appellation. Today Clos Du Val owns vineyards in three outstanding Napa Valley appellations: Stags Leap District, Carneros, and Yountville. Each has a unique microclimate perfectly suited for the varietals that grow there. And each lends a distinctive flavor to the wines we produce from these vineyards.
Carneros Estate Vineyards
One year after purchasing 150 acres in the then-undiscovered Stags Leap District, John Goelet acquired 180 acres of the finest hillside land in Carneros. Goelet recognized the region’s potential for growing world-class Burgundy varieties 10 years before the area was made an official American Viticulture Area. Located just north of San Pablo Bay, the district straddles the entrance to both Napa and Sonoma Valleys.
Cooling breezes off San Pablo Bay allow for a long, even growing season that encourages the grapes to reach their full maturity. The rocky, clay loam reduces the yield per vine, producing highly concentrated Pinot Noir and Chardonnay fruit of intense varietal character.
State Lane Estate Vineyard, Yountville
Yountville offers a unique combination of distinctive soil characteristics. Volcanic soils on the eastern flank are similar to neighboring Stags Leap District. Centuries-old coastal deposits with sedimentary and alluvial soils to the west are interspersed with sandy, gravelly loam and clay. No other area in Napa Valley has this geomorphic combination. Pronounced soil differences between Yountville and the surrounding Oakville, Stags Leap, Mt. Veeder, and Oak Knoll areas set it apart and earned the area its American Viticulture Area designation.
Cool marine air currents from San Pablo Bay are trapped when they reach the Yountville Mounts, keeping natural air conditioning working even on the warmest summer days. Mild temperatures allow the grapes plenty of time to develop unique flavor characteristics.
Director of Vineyard Operations
Al Wagner was raised on a tobacco farm in Connecticut. He made a career of farming years before he actually began farming grapes in the 1990s, developing 1,000 acres of vineyards near Paso Robles from scratch for an Australian wine company. He joined Clos Du Val in 2001 and has enhanced our commitment to sustainable agriculture while overseeing vineyard operations and personnel.
Farming & Sustainability
Outstanding fruit can only come from healthy soil and an ongoing commitment to the environment. We have more than 40 years of farming excellence under our belt across 347 acres of Napa Valley estate vineyards. With complete control over our viticulture practices, we consistently produce outstanding fruit. Our continuing commitment to sustainability is essential as we steward the land for the current generation and those to come.
Clos Du Val is enrolled in the Fish Friendly Farming Certification Program, which is run by the California Land Stewardship Institute. The Fish Friendly Farming program provides expertise on erosion and soil loss, stream bank failure, and water quality. Clos Du Val is also a member of Napa Green, a comprehensive best practices program for land use and wine production. Napa Valley vintners and growers develop farm-specific plans tailored to protect and enhance Napa’s ecological quality.
Since 2001, Clos Du Val has planted permanent grasses in all of its mid-rows and vineyard roads. By avoiding tilling, the winery preserves soil structure, encourages beneficial insects, and reduces the flow of sediment off the land. Mowing instead of tilling also delivers significant amounts of clippings, which act as mulch. Clos Du Val applies up to 1000 tons of organic compost to the vineyards each year to improve soil health and microbial activity.
The winery’s non-till policy helps prevent pests, and Clos Du Val also releases predatory insects to control pests. Each vineyard site has its own weather station, which provides data for enabling the operations team to minimize spraying while increasing its effectiveness.
Weather stations at each vineyard collect data that support watering decisions. Plant stress readings and soil moisture monitoring helps maximize irrigation effectiveness. On 150 acres of vines and the winery landscaping, the winery uses recycled water from the town of Yountville to conserve ground water.
Clos Du Val has installed owl boxes for rodent control at each vineyard. In addition, the winery allows deer and other mammals to traverse the vineyards to maintain the habitat.
Many of the grapes in the Carneros vineyards are picked by hand. When needed in the vineyards, trucks and tractors run on bio-diesel fuel for better efficiency.