Marengo Cave was discovered on September 6, 1883. There are many early descriptionsMarengo Cavern by H.C. Hovey in Scientific American, Cambridge City Tribune, Cambridge City, Indiana, Thursday, December 27, 1883, Page 4.An early description of Marengo Cave, Annual Report by Indiana Dept. of Geology and Natural Resources, 1897, Volume 21, page 144-149. and some confusion about the date and the story how the cave was discovered.Marengo Cave National Landmark
