• Larger and more diverse than Napa, it ranges from cool on the coast to warm inland, with a complete spectrum of varieties:
  • Russian River Valley: morning fog corridor; Pinot Noir and Chardonnay famous areas (Williams Selyem, Kistler, etc., general knowledge); sub-area Green Valley is cooler.
  • Sonoma Coast/West Sonoma Coast: The center of the new wave of extreme coastal cool, tight, high-acid Pinot Noir/Chardonnay.
  • Petaluma Gap (AVA established in 2017): A production area defined by "wind" - the Pacific wind flows in every day, thickening the skin and retaining acidity.
  • Dry Creek Valley: Old vine Zinfandel classic area, also with Sauvignon Blanc.
  • Alexander Valley: Warm, round Cabernet Sauvignon (Jordan, Silver Oak, etc., general knowledge).
  • Sonoma Valley/Moon Mountain: Historical production area, old vines and volcanic soil.