Twisted Colossus

Twisted Colossus (formerly Colossus) is a steel roller coaster at Six Flags Magic Mountain amusement park. Originally designed and built by International Amusement Devices, the roller coaster opened as Colossus on June 29, 1978. It was the tallest and fastest wooden roller coaster in the world and the first with two drops greater than . Colossus became well known after appearances in film and television, including the box-office hit National Lampoon's Vacation. After more than 36 years in operation, Six Flags announced in 2014 that Colossus would be closed permanently on August 16, 2014. Within two weeks of its closure, Six Flags announced that the roller coaster would reemerge in 2015 as a steel-tracked roller coaster named Twisted Colossus. It was renovated by Rocky Mountain Construction to feature barrel roll inversions, and a near-vertical drop. Twisted Colossus opened on May 23, 2015.