Drapery and flowstone in Chimney Dome (Figure provided by A. Frierdich)
Illinois Caverns State Park
Waterloo, Illinois
33 miles away
"O'Fallon residents enjoy the park's educational cave tours and scenic picnic spots for family gatherings."
A unique state park featuring Illinois' only commercial cave open to the public.
Cave ToursPicnickingWildlife ViewingPhotographyNature Study
View park detailsMastodon State Historic Site
Imperial, Missouri
42 miles away
"O'Fallon residents may visit for a unique educational experience that pairs well with other St. Louis-area attractions. The site is especially appealing to those interested in natural history and archaeology."
An Ice Age fossil site and museum in eastern Missouri.
Museum VisitsWildlife ViewingPicnickingPhotographyEducational Programs
View park detailsGraham Cave State Park
Danville, Missouri
50 miles away
"Families from O'Fallon often visit for a nearby outdoor destination that combines a short walk with a meaningful historic site."
A historic park centered on a significant prehistoric cave site in the Loutre River valley.
HikingPicnickingWildlife ViewingBirdwatchingHistoric Site Viewing
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