| Underground
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| General
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| [[File:|link=|center]]
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| Park
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Adventureland
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| Location
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Atoona, Iowa
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| Status
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Operating
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| Operated
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| Operated
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1996 -
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| Opened
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1996
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| Opening
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| Cost
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| Height restriction
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| Statistics
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| Manufacturer
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| Builder
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| Designer
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Custom Coasters
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| Type
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Wooden- Enclosed
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| Type
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| Model
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| Riders per train
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1-28 riders
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| Riders per hour
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| Lift/launch system
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| Height
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13 feet
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| Drop
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feet
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| Top speed
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mph
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| Length
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911 feet
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| Dimensions
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feet x feet
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| Duration
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| Inversions
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| Steepest drop
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| Maximum g-force
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Underground is a roller coaster located at Adventureland Iowa in Altoona, Iowa
Design[]
Write about the ride's design here!
Trains[]
Photo Gallery[]
