Organ Cave System
The Organ Cave System, which contains seven caves including Organ Cave, is the largest cave system in West Virginia. The site is also noted for its saltpeter troughs and vats.
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.