East Texas Yamboree in Gilmer
A four-day harvest festival in Gilmer, Texas, founded in 1935 to celebrate the region's sweet potato crop after a weevil infestation and shipping quarantine nearly destroyed it. Held the third weekend of October and drawing over 100,000 visitors, it centers on a Queen's Coronation Pageant alongside two parades, a carnival, barn dances, livestock shows, and a car show.
Gilmer built an entire festival around the sweet potato after a weevil infestation nearly wiped out the crop that had become East Texas farmers' most reliable cash product in the early 1930s.