Snake Butte illustrates one of two types of sand calcite deposits in the world.
Year designated: 1967
Ownership: Indian Trust (Oglala Sioux Tribe)
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.