Northernmost wine region in California
in the region North Coast
that directly to the Sonoma County
followed. It is organized into the AVA divisions Anderson Valley, Cole Ranch, Dos Rios, McDowell Valley, Mendocino (a comprehensive AVA), Mendocino Ridge, Potter Valley, Redwood Valley and Yorkville Highlands. In general, there are relatively mild winters and not too hot summers. However, there is a great deal of detail 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 deep, different types of silt beds in the riverbeds, gravelly loamy soils near the Russian River, and gravel heaps on the surrounding hills.
The vineyards cover almost 6,500 hectares of vineyards, large parts are located in the headwaters 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 vineyard. Since then, especially the cooler areas of Mendocino County are predestined for sparkling wine. Well-known producers are Fetzer
, Hidden Cellars, Kendall-Jackson
, Navarro Vineyards, Parducci Wine Cellars, Ravenswood
(Roederer Estate) and Scharffenberger Cellars.