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
Rushmore Memorial Library Rushmore Memorial Library The Rushmore Memorial Library, also known as the Rushmore Memorial Building, is located at the junction of NY 32 and Weygant Hill Road in Highland Mills, New York, United States. It is a small Arts and Crafts-style stone building constructed in the 1920s with a donation from Charles E. Rushmore, a local resident for whom Mount Rushmore is also named. It served as the Town of Woodbury public library until the mid-1980s, when a larger modern library was built. Today it is the headquarters of the town historical society. It was listed on the National Register of