Tours of Marengo cave have been given since 1883, shortly after the cave's discovery. There are about 5 miles of known passageways in the cave, including an underground stream and the largest single room of any cave in Indiana. There are two different tours given, one covering 1 mile of cave and one covering 1/3 of a mile, each covering a different part of the cave.
Posted by Greg Heil on March 14, 2012
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