National Natural Landmarks
Mount Lamlam is a remnant of a great caldera. It is the third key site on Guam disclosing the major volcanism that created the island.
Location: Guam, GU
Year designated: 1972
Ownership: Government of Guam
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.