While Marin has Heath Ceramics, whose creations can be found in many fine dining establishments and homes, Napa has NBC Pottery, located in the mountain town of Angwin, just above St. Helena.
Husband-and-wife team Will and Nikki Callnan have their pieces at places like The Restaurant at Meadowood and French Laundry. Be sure to check out the studio sale December 8 and 9.