Covert Estate is in the eastern hills of the Vacas Mountain Range, in the Coombsville Appellation. It was started by three couples with backgrounds as wine collectors or vintners. Covert applies Bordeaux winemaking to Coombsville terroir.

Château d’Armailhac was purchased by Baron Philippe de Rothschild in 1933. The Baron later named it Mouton-Baronne-Philippe to honor his wife. Since 1989 it has once again been called Château d’Armailhac and it remains owned by the de Rothschilds.

Hundred Acre is owned by Jayson Woodbridge, a winemaker who has been defying conventional winemaking wisdom for years. He founded Hundred Acre wineries in California and Australia, and makes palate-pleasing, single-vineyard wines in both places.