National Natural Landmarks
Glacial Grooves State Memorial
Glacial Grooves State Memorial, located on Kelleys Island, is made up of very large limestone glacial grooves that measure several feet in depth.
Location: Erie County, OH
Year designated: 1967
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.