Anderson Valley AVA

Modern viticulture in Anderson Valley began in the early 1960s when Dr. Donald Edmeades, a Southern California physician, planted 24 acres of Gewürztraminer, French Colombard, Chardonnay, and Cabernet Sauvignon, selling the fruit to outside wineries. In 1968, Tony and Gretchen Husch bought a 60-acre ranch near Philo and planted Pinot Noir, Chardonnay, and Gewürztraminer. Their first official crush in 1971 made Husch Vineyards the first licensed winery in Anderson Valley since Prohibition. Ted Bennett and Deborah Cahn acquired a sheep ranch in 1973, planted vines in 1974, and produced their first Navarro Vineyards wines in 1975, pioneering the Alsatian-style whites the region became known for. The early 1980s brought critical mass: Scharffenberger Cellars released the valley's first sparkling wine in 1981, and in 1982 Jean-Claude Rouzaud of Champagne Louis Roederer selected Anderson Valley over Napa and Sonoma for his California sparkling wine project, transforming the region's global reputation.

• AVA established August 18, 1983; at founding just 582 acres were planted with seven wineries in operation
• Husch Vineyards (1971) was the first licensed post-Prohibition winery; Edmeades Winery bonded in 1972, Navarro Vineyards first vintage 1975
• The valley now hosts just over 90 commercial vineyards and 30 bonded wineries, with many Napa and Sonoma producers sourcing fruit from the region

Anderson Valley runs roughly 15 miles northwest from Boonville to Navarro, averaging about one mile wide, and lies within the Navarro River watershed in western Mendocino County, approximately 110 miles northwest of San Francisco. Cutting laterally through the coastal mountain range rather than lying parallel between ridges, the valley's western edge, known locally as the 'deep end,' sits only about 10 miles from the Pacific Ocean. This transverse orientation allows cold marine air, fog, and afternoon winds to funnel directly into the valley, creating California's coolest wine-growing conditions. Daytime temperatures can reach 100°F in summer, while nights plunge dramatically, producing diurnal swings of 40 to 50°F. Elevations range from sea level to 2,500 feet, and annual precipitation ranges from 35 to 80 inches, concentrated in winter. The Philo area is classified as Winkler Region I; the warmer Boonville area as Region II. Rolling hills are interspersed with forests of Douglas Fir, California Laurel, and Coast Redwood.

• Western 'deep end' is approximately 10 miles from the Pacific Ocean; marine fog and afternoon winds are the primary climate drivers
• Diurnal temperature variation of 40 to 50°F daily; daytime highs can exceed 100°F while nights are cool, slowing grape maturation and preserving acidity
• Philo = Winkler Region I; Boonville = Winkler Region II; annual rainfall ranges 35 to 80 inches, falling mostly in winter months

Pinot Noir now dominates at approximately 69% of planted acreage, a dramatic shift from the valley's founding, when it accounted for only 47 acres. The arrival of new Dijon clones in the late 1980s accelerated plantings, and today Anderson Valley Pinot Noir is recognized as one of California's finest expressions of the variety, showing vibrant acidity and aromas of raspberry, black cherry, cranberry, and plum, backed by earthy, floral, and herbal notes. Chardonnay accounts for about 21% of plantings and serves double duty as both a still wine and a key component in the region's traditional-method sparkling wines. Anderson Valley's Alsatian heritage remains visible in its Gewürztraminer, Riesling, and Pinot Gris, which thrive in the cool climate. The valley hosts two annual wine festivals: the International White Wine Festival (honoring Alsatian varieties) and the Anderson Valley Pinot Noir Festival. Sparkling wine is a regional pillar, with Roederer Estate, Scharffenberger Cellars, and Handley Cellars all producing traditional-method wines.

• Pinot Noir: 69% of plantings; wines show vibrant acidity with red and black fruit, earthy, herbal, and floral complexity
• Chardonnay: 21% of plantings; used for still wines with crisp citrus and stone fruit character and for traditional-method sparkling blends
• Secondary varieties include Gewürztraminer, Riesling, Pinot Gris, Sauvignon Blanc, and Pinot Blanc, reflecting the valley's Alsatian roots

Roederer Estate has been the anchor of Anderson Valley's sparkling wine identity since 1982. Founded by Jean-Claude Rouzaud, then president of Champagne Louis Roederer, the estate planted its first vines in 1984, opened its winery in 1986, and released its inaugural multi-vintage Brut cuvée, a 60% Chardonnay and 40% Pinot Noir blend, in 1988. Today Roederer farms 620 acres, making it the largest vineyard holder in the AVA, and produces four sparkling wines: the multi-vintage Brut, Brut Rosé, and the vintage tête de cuvée L'Ermitage and L'Ermitage Rosé. Navarro Vineyards, founded in 1973 by Ted Bennett and Deborah Cahn, farms about 100 acres and sells the majority of its 35,000 to 40,000 cases directly to consumers, pioneering the California wine club model. Husch Vineyards, the oldest winery in the AVA (1971), remains owned and operated by the third generation of the Oswald family. Goldeneye Winery, established in 1996 by the Duckhorn family of Napa Valley, is a dedicated Pinot Noir estate.

• Roederer Estate: founded 1982, first vines 1984, inaugural MV Brut released 1988; farms 620 acres; winemaker Arnaud Weyrich has led production since the late 1990s
• Navarro Vineyards: founded 1973 by Ted Bennett and Deborah Cahn; consistently recognized for California's finest Gewürztraminer; second generation now leading the winery
• Husch Vineyards (1971) planted Anderson Valley's first Pinot Noir in a 2.5-acre hilltop block called 'the Knoll,' using bud wood from Wente

Anderson Valley AVA was established on August 18, 1983, by the Bureau of Alcohol, Tobacco and Firearms after the Anderson Valley Appellation Committee submitted its petition. The viticultural area encompasses 57,600 acres, of which approximately 2,457 acres are under vine. As with all U.S. AVAs, wines labeled 'Anderson Valley' must contain at least 85% fruit sourced from within the defined boundaries. Anderson Valley is a sub-AVA nested within the broader Mendocino AVA, which was established in June 1984 and encompasses eight valleys in Mendocino County. The Mendocino AVA is in turn part of the large multi-county North Coast AVA. Anderson Valley forms a compact rectangle flanked by the Mendocino Ridge AVA to its south and west and the Yorkville Highlands AVA to its southeast. No formal sub-AVAs currently exist within Anderson Valley's boundaries.

• Established August 18, 1983; encompasses 57,600 acres with approximately 2,457 acres planted; 30 bonded wineries in operation
• 85% fruit requirement applies for Anderson Valley designation on wine labels
• Anderson Valley is a sub-AVA of Mendocino AVA (est. June 1984), itself part of the broader North Coast AVA; flanked by Mendocino Ridge AVA and Yorkville Highlands AVA

Anderson Valley stretches along Highway 128 approximately 110 miles northwest of San Francisco, passing through the small communities of Boonville, Philo, and Navarro. The valley is famous for Boontling, a folk jargon created in the 1890s by the isolated farming, ranching, and hop-picking community of Boonville. Drawing on English, Scottish Gaelic, Irish, Spanish, and Pomoan roots, Boontling has an estimated 1,600 terms and was once taught in local schools. As of 2015, fewer than 100 living speakers remained, many not fully fluent, making it nearly extinct. Sample words include bahl gorms (good food), horn of zeese (cup of coffee), pike (to walk or travel), and frattey (wine). The Anderson Valley Historical Museum in Boonville preserves the language's history. Visitors can tour tasting rooms year-round, with the annual Pinot Noir Festival in May and the International White Wine Festival in February drawing wine enthusiasts from across the country.

• Boontling created 1890s; approximately 1,600 documented terms drawn from English, Gaelic, Spanish, and Pomoan; fewer than 100 speakers remain as of 2015
• Annual events include the Anderson Valley Pinot Noir Festival (May) and the International White Wine Festival (February), both centered on the valley's key varieties
• Highway 128 runs the length of the valley, connecting 30 bonded wineries; average vineyard size is 15 acres, giving the region an intimate, farm-direct character