Big Dipper is a wooden roller coaster at Geauga Lake amusement park in Bainbridge Township, Ohio. Built in 1925, the Big Dipper is an ACE "Coaster Classic" and an ACE "Landmark Coaster." Until September 2007, it was the oldest operating wooden coaster in Ohio, and the 7th oldest operating roller coaster in the USA (12th oldest in the world). Best Rollercoaster~rickety & wooden!!