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 Gilead State Park Mount Gilead State Park Mount Gilead State Park is located in Morrow County, Ohio, United States to the east of the village of Mount Gilead. Access to the park is via State Route 95. Work on the park began in the early 1900s, with the creation of a dam across Sam's Creek. Work continued through the proceeding decades, with a larger lake being completed below the first one on July 10, 1930. In 1949, the park was turned over to the Ohio Department of Natural Resources. Mount Gilead State Park covers , 32 of which are the lakes. It offers