Roller coaster
Click here to watch the on-ride POV
Underground (Adventureland) sign.jpg
Location Atoona, Iowa, USA
Status Operating since April 27, 1996
Builder Custom Coasters International, Inc.
Type Wooden - Enclosed - Dark ride
Propulsion Chain lift hill
Inversions 0
Rolling stock
Manufacturer Philadelphia Toboggan Coasters
Riders per train 20

Underground is a wooden enclosed dark ride roller coaster located at Adventureland in Altoona, Iowa, USA.


The Underground is located indoors and is kept in the dark. It has various characters designed by Themed Environments and Effects.


The lap-bar restraints

2 trains with 6 cars per train. In each car, riders are arranged 2 across in 2 rows, for a total of 24 riders per train. The first and last cars were removed from each train during the 2019 season. The last cars were added back on for 2020, but are not open to riders.

External links

Articles on Adventureland
Adventureland (USA-Iowa) logo.png