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 Blue State Park Mount Blue State Park Mount Blue State Park is a public recreation area covering in the town of Weld, Franklin County, Maine. The state park's bifurcated land includes acreage on the west shore of Webb Lake as well as Mount Blue and other peaks to the east of the lake. The park is connected by road with the Tumbledown Public Lands, the site of Little Jackson Mountain, Tumbledown Mountain, and Tumbledown Pond, an alpine lake near the top of Tumbledown and Little Jackson mountains. The park and public lands are managed by the Maine Department of Agriculture, Conservation and Forestry.