Food Safety Report: Mammoth Tavern - Mammoth, Old Mammoth Road, Mammoth Lakes, CA, USA 8 months ago • details 9 Suspected food poisoning. Symptoms: Diarrhea, Vomiting, Fever, Stomach Pain, Cramps, Chills, Headache Suspected source: Oysters Onset: 1 to 2 days Duration: Several days Sick: Me Additional information: I ate the… See more