Climate: Cool to moderate, with most vineyards above the fog-line, meaning warmer nights and cooler days and less diurnal range than the valley floor. Typical mid-summer high temperatures about 85°F (30°C).
Soils: Sedimentary based, former seabed, shallow and generally well drained, as well as more acidic, with low fertility. Most have a sandy or sandy-loam texture.
Principal varieties & characteristics: Ageability is a hallmark of Mt. Veeder wines. Cabernet Sauvignon, Merlot, Zinfandel: Low yields give red wines a firm, tannic structure with strong earth-berry aromas and rich, but powerful flavors. Chardonnay: minerally, appley, even citrus flavors with good acidity.
Principle Wineries: