2019 Marshall County Blueberry Festival ‘MEGA PASS’ are on sale now through August 29. Pre-sale prices are $55 through August 24. Passes will cost $60 from August 25 through August 29. They will not be available for purchase after August 29. Shown in photo: ‘Blueberries in Marshall County’ located in front of the Blueberry Festival Office located at 233 East Jefferson St.