From this paragraph please summarize the notable California regions where pinot noir is produced.

Context: Pinot noir's home is France's Burgundy region, particularly Côte-d'Or. It is also planted in Argentina, Australia, Austria, Bulgaria, Canada, Chile, northern parts of Croatia, Czech Republic, England, the Republic of Georgia, Germany, Greece, Israel, Italy, Hungary, Kosovo, the Republic of Macedonia, Moldova, New Zealand, Romania, Serbia, Slovakia, Slovenia, South Africa, Switzerland, Ukraine, United States, and Uruguay. The United States has increasingly become a major pinot noir producer, with some of the best regarded coming from Oregon's Willamette Valley, and California's Sonoma County with its Russian River Valley and Sonoma Coast appellations. Lesser-known appellations are found in Mendocino County's Anderson Valley, the Central Coast's Santa Lucia Highlands appellation, the Santa Maria Valley, and Sta. Rita Hills American Viticulture Area in Santa Barbara County. In New Zealand, it is principally grown in Martinborough, Marlborough, Waipara, and Central Otago.

Answer: Notable California regions that produce pinot noir include Sonoma County (Russian River Valley and Sonoma Coast), Mendocino County (Anderson Valley), Central Coast (Santa Lucia Highlands), and Santa Barbara County (Santa Maria Valley, Sta. Rita Hills American Viticulture Area).