Northernmost wine region in California
in the region North Coast
that directly to the Sonoma County
followed. It is divided into the AVA areas Anderson Valley, Cole Ranch, Dos Rios, McDowell Valley, Mendocino (a comprehensive AVA), Mendocino Ridge, Potter Valley, Redwood Valley and Yorkville Highlands. Generally there are relatively mild winters and not too hot summers. In detail, however, there is a wide range between the cool and rainy Anderson Valley on the coast (climate zone I) and the warm McDowell Valley in the interior of the country (climate zone III). The area is crossed by the two rivers Russian River and Navarro. The soils consist of various types of deep alluvial soils in the river plains, gravelly clay soils in the area of the Russian River and gravel heaps on the surrounding hills.
The vineyards cover almost 6,500 hectares of vineyards, large parts are in the source area of the Russian River. The main grape varieties are Chardonnay, Zinfandel, Cabernet Sauvignon, Carignan (Mazuelo), Sauvignon Blanc, Colombard, Riesling, Gewurztraminer, Pinot Noir and Petite Sirah (Durif). At the beginning of the 1980s, the Roederer champagne house founded a 200 hectare winery. Since then, the cooler areas of Mendocino County have been predestined for sparkling wine. Well-known producers are Fetzer
, Hidden cellars, Kendall-Jackson
, Navarro Vineyards, Parducci Wine Cellars, Ravenswood
(Roederer Estate) and Scharffenberger Cellars.