Viper is a steel roller coaster made by Arrow Dynamics of the United States. The roller coaster is located in the Baja Ridge area of Six Flags Magic Mountain in Valencia, California. Viper is the last of the three 7-looper roller coasters built by Arrow Dynamics to remain operating. The other two, Shockwave at Six Flags Great America and the Great American Scream Machine at Six Flags Great Adventure, were demolished in 2002 and 2010, respectively.