Bellwether Farms is an artisan cheese company located in the heart of Sonoma County. Family owned and operated by the Callahans, the creamery produces some of the best sheep and cow milk cheeses in the world. Bellwether Farms began milking their sheep and producing hand-crafted cheeses in 1990, making them one of the first in the country. In addition to the sheep milk products, Bellwether produces wonderful cows milk cheeses from a neighbors herd of Jerseys.