The 10th Annual Geode Fest in Hamilton, Illinois is the weekend of September 26th-28th, 2014. There is a $20.00 registration fee (single person) or $30.00 family fee entitles you to 2 – hunts per day on Friday and Saturday, and 1 – hunt on Sunday morning. Some of these guided hunts are on private property, not normally open to the general public for geode hunting at any other time.
More information can be found at the following link. Geode Fest Get out there... "It's a fun place to rock!"