FOOD: Jim Baum’s market in the San Geronimo Valley offers what some consider to be the best locally sourced food around.   David Briggs

On Mother’s Day weekend, a steady flow of customers passed through the doors of Jim Baum’s Marin Community Farm Stand in Forest Knolls. 

Conveniently located at a former gas station on the valley’s thoroughfare, the stand offers crates of produce and freezers of meat—along with beer and wine, soaps and preserves, and . . .