The Russian River Valley sub-appellation is located in which region?

The Russian River Valley sub-appellation is located in which region?

• A. Mendocino
• B. Sonoma
• C. Napa
• D. Santa Barbara

Answer: (B)

The Russian River Valley is a cool-climate area that sits in Sonoma County, California. It’s one of Sonoma’s well-known sub-AVAs, defined by the fog-cooled growing season along the Russian River that helps preserve acidity—especially in Pinot Noir and Chardonnay. While a small fringe may extend toward Mendocino, the region is most closely identified with Sonoma, not Napa or Santa Barbara, which are separate regions. That connection to Sonoma is why this is the correct region.

The Russian River Valley is a cool-climate area that sits in Sonoma County, California. It’s one of Sonoma’s well-known sub-AVAs, defined by the fog-cooled growing season along the Russian River that helps preserve acidity—especially in Pinot Noir and Chardonnay. While a small fringe may extend toward Mendocino, the region is most closely identified with Sonoma, not Napa or Santa Barbara, which are separate regions. That connection to Sonoma is why this is the correct region.