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Sonoma County secrets you might not know

Locals call it “Sonoma Aroma,” the unpleasant scent that permeates Sonoma County air several times a year. The fragrant source? It’s when local dairy farmers start pumping out their holding ponds to spread cow manure out on their fields. (Alvin Jornada / The Press Democrat)

CRISSI LANGWELL,

If you’re local to Sonoma County, you might know a few of the secrets in the gallery above. But do you know all 20? Click through and test your Sonoma County knowledge!