Los Carneros (Spanish for "the sheep" or "rams") is unique in the fact that it is situated in two counties: Napa and Sonoma. The area is about a 45 minute drive from San Francisco and sits near the San Palo Bay, the furthest northern extension of the San Francisco Bay. As the 6000 acres of vineyards are low-lying near this bay, early morning fog is an everyday occurrence, often not burning off until midmorning (around 10:00). This limits daily sun exposure, and that combined with the moderate temperatures, makes this an ideal site for cool-climate varieties. Pinot Noir and Chardonnay are the two dominant varieties, while there is also a bit of Merlot, Syrah and even a few Albariño vines in Corners.

In general, the wines of Carneros have very good acidity, deep color (a trademark of a cool climate) and subtle spiciness. These wines are not the fruit bombs as with some examples from California, but are more restrained with a good deal of finesse and elegance. (Wine/Appellations)