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 Everett State Reservation Mount Everett State Reservation Mount Everett State Reservation is a public recreation area in the towns of Mount Washington and Sheffield, Massachusetts, that offers panoramic views of Massachusetts, Connecticut, and New York from the summit of Mount Everett. The reservation abuts Jug End State Reservation and Wildlife Management Area; Bash Bish Falls State Park and Mount Washington State Forest lie to the west. All are managed by the Massachusetts Department of Conservation and Recreation. The state legislature established the Mount Everett Reservation Commission in 1908. The commission was provided a fund of $5000 to purchase land in the towns of