Underground is a wood roller coaster at Adventureland (Iowa) · United States, built by Custom Coasters International. Catalog stats list it as 13 ft tall, no inversions. Current catalog status: Operating. Track it on CoasterTrak after you ride, or open it on the interactive map to plan a visit.
After you ride Underground, log it once as a unique coaster credit. Repeats at Adventureland (Iowa) add to total rides, not your credit count. Open the park page to see leftover credits you have not logged yet.
How to log Underground on CoasterTrak
Create a free account if you have not already.
Mark this coaster ridden after you sit the ride — add a date if you want history.
Re-rides increase total rides, not your unique credit count.
Open the Adventureland (Iowa) park page afterward to spot leftover credits you have not logged yet.
