Cumberland Cavern (Higginbotham and Henshaw Caves)
Cumberland Cavern, known to be at least 27 miles in extent, is one of the longer cave systems in the country. Two interconnecting caves contain stalagmites, stalactites, helictites, flowstone, cave pearls, botryoidal coral, gypsum flowers, needles, and pure white gypsum snow, as well as a wide variety of cave life.
Year designated: 1973
Please remember, National Natural Landmarks (NNLs) are not national parks. NNLs are owned by a variety of public and private entities and allowing visitation is at their discretion. Many NNL sites maintain public websites where additional information may be found.