
1) California wine center 2) California wine county 3) California wine region 4) California wine town 5) California wine valley 6) California winemaking county 7) County next to Napa 8) Its seat is Santa Rosa 9) Largest Bay Area county 10) Napa neighbor 11) West Coast wine county 12) Wine center near Napa
Found on
https://www.crosswordclues.com/clue/sonoma

city, Sonoma county, western California, U.S. It lies about 50 miles (80 km) northeast of San Francisco and 20 miles (30 km) southeast of Santa Rosa, ...
Found on
http://www.britannica.com/eb/a-z/s/126

A coastal county north of San Francisco and one of the top wine producing areas of California. Many Sonoma wines are fully as acceptable, qualitywise, as the finest of Napa Valley. Sonoma and Napa Counties have a common border from San Francisco Bay northward along the ridge of the Mayacamas Mountains.
Found on
https://www.encyclo.co.uk/local/22305
No exact match found.