Rushmore Cave 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 1876 when a log flume that supplied water to mining operations in town of Hayward broke and spilled onto the side of the hill. As the water flowed down the hill it started flowing into a small hole in the hillside. The local miners who went up to fix the flume noticed this abnormality and
Mount Rushmore (band) Harum, The Paul Butterfield Blues Band, The Grateful Dead, Steve Miller, Santana, Quicksilver Messenger Service, and Big Brother and the Holding Company. In June 1967 Mount Rushmore played 2 sets at The KFRC Fantasy Fair and Magic Mountain Music Festival; it was just one week before the Monterey Pop Festival which is considered the world's first "Rock Festival". In March 1968 Dotzler left to join local band Phoenix, and was soon followed by Phillips and Levin. Bolan and Kimble added Glenn Smith and Travis Fullerton to the line up and the group made two albums. Warren B. Phillips was the