Thunder Run is a powered roller coaster, themed after a runaway mine train, found at Canada's Wonderland, in Vaughan, Ontario, Canada. Rather than having a traditional chain lift hill, the train has an electric motor on board. The train (consisting of nine cars of two rows of two seats, plus an extra single row at the front of the train) flies directly into the Wonder Mountain, the artificial mountain that is a trademark of the park. The coaster opened on May 23, 1981,[1] and operated until 1985