What’s in a cave? Bats?
“Not in this cave,” stated Cave of the Mounds staff geologist, Anne Bandow. “Many Wisconsin caves do shelter bats of several species and other creatures, but Cave of the Mounds has never had animal residents.”
Until August 4, 1939, the Cave of the Mounds was completely sealed below thick layers of limestone. There was no way for animals or humans to get in or out. The cave was a total secret until workers blasted through what they thought was a solid wall of rock and were amazed to discover the large underground cavern. Prior to that surprising event, no light had ever shone inside Cave of the Mounds nor had the eyes of any living creature peered inside.