Greenville Saltpeter Cave
Greenville Saltpeter Cave is the largest of the saltpeter caves in West Virginia. The cave contains rimstone pools and saltpeter deposits.
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.