Sonoma County, located in Northern California, is a distinguished wine region known for its diverse terroirs and high-quality wine production. The county benefits from a Mediterranean climate with cool coastal influences, which contributes to its varied and nuanced wines. It's celebrated for its exceptional Pinot Noir and Chardonnay, particularly in the Russian River Valley, where the cool climate enhances their elegance and complexity. The county also produces notable Zinfandel and Cabernet Sauvignon, as well as a range of other varietals like Syrah and Sauvignon Blanc.