Russian River Valley, one of the United States' top-ranked wine regions, is located at the heart of?Sonoma County, California. It is one of California's coolest and foggiest AVAs (particularly in its southern and western portions), and its cool?growing season?and long, slow ripening period promotes complexity and balance in the wines. As a result, Russian River Valley wines are widely respected, particularly those made from?Pinot Noir?and?Chardonnay.