The Underground

The Underground in Altoona, Iowa is a family-friendly amusement park that offers an exciting roller coaster experience. With a track length of 911 feet and a height of 15 feet, this enclosed coaster, built by Custom Coasters International, Inc., provides a thrilling ride for visitors.

Formerly operated with five cars, the park made changes during the 2019 season by removing the first and last car from each train. However, in 2020, the last cars were added back on, although they are not used for guests. The Underground is a popular destination for roller coaster enthusiasts seeking a unique and exhilarating adventure.

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