Aunu'u Island is the site of recent episodes of volcanism backed by a geologically recent tuff cone.
Year designated: 1972
Ownership: Communal Lands
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.