50 Years of Hydro at the Dodge County Fairgrounds. Celebrating 50 years of John Deere hydro and all Horicon built John Deere machines. Factory tours, swap meet, dig in the dirt, exhibits, memorabilia displays, tractor parade, meet the retirees and the employees who designed and built these great machines. Many prototypes and one of a kind machines will be on the grounds. Large vintage snowmobile display. John Deere equipment only. Camping available. Free admission and free parking. Exhibitors are welcome.