Rushmore Cave into a rock known as limestone. The cave has a cornucopia of rooms including the Entrance Room, Post Office, Image Room, Big Room, Fairyland, Rope Room, Geode Room, The Rouge Room (Party Room), Arrowhead Room, and the Floral Room. The cave also includes boxwork and many dripstone formations including stalactites, stalagmites, columns, helictites and flowstone. Rushmore Cave Rushmore Cave is the closest show cave to Mount Rushmore National Memorial in the United States. It contains a wide variety of natural formations. It is the ninth longest cave in South Dakota. It measures a distance of . It was discovered in
Mount Buangor State Park and was reported to have been visited by Major Thomas Mitchell during the 1830s. There were a number of sawmills in the area in the 19th century. Mount Buangor State Park Mount Buangor State Park is located 60 kilometres west of Ballarat, Victoria in Bayindeen. The eucalypt trees include yarra and manna gums, blue gums and Messmates, narrow-leaf peppermint gums, snow gums and Red Stringybarks as well as large tree ferns. More than 130 species of birds have been recorded in the Mount Cole State Forest which includes this park. Fauna includes echidnas, deer, eastern grey kangaroos, wallabies, possums, gliders