The cave's formation dates back around a million years, according to Marengo Cave's website, but it was not discovered until 1883. In 1984, Marengo Cave was named a National Natural Landmark.

Indiana has plenty to offer for underground exploration. Check out these caverns and caves for an exciting experience without a ton of travel time.

Marengo Cave. The second most noted site by my friends and family is Crawford County's Marengo Cave. Discovered in the 1880s, Marengo Cave has since been open for tours. Bundle up.

Marengo Cave offers two different tours: the Crystal Palace and the Dripstone Trail. The Crystal Palace is an easy 40-minute tour packed with formation-filled rooms.

Learn more about cave tours and family-friendly things to do during a visit to Marengo Cave, a U.S. National Natural Landmark in southern Indiana.

MARENGO, Ind. (WDRB) -- It is one business that does not mind the upcoming extreme hot weather. It offers customers relief from the heat as well as a little education. Marengo Cave, about 35 miles ...

Marengo Cave. The second most noted site by my friends and family is Crawford County's Marengo Cave. Discovered in the 1880s, Marengo Cave has since been open for tours. Bundle up.

Marengo Cave in southern Indiana was discovered in 1883 by two local children. The 40-minute Crystal Palace tour includes formations like Mirror Lake, where still water creates a clear reflection ...