Thunderhead is a wooden roller coaster located at Dollywood amusement park in Pigeon Forge, Tennessee. Manufactured by Great Coasters International, the ride opened on April 3, 2004, as the anchor attraction of a new section added to the park that season called Thunderhead Gap. Thunderhead features 22 turns and 32 crossovers and utilizes GCI's Millennium Flyer trains, which have been used on all GCI coasters since 1999.