Shelter Rock, Glacial granite rock formation in Manhasset, New York.
The massive granite boulder measures 55 feet in height, 35 feet in width, and features a natural overhang extending 30 feet from its base.
During the last ice age, between 20,000 and 11,000 years ago, glacial movements transported and deposited this 1,800-ton granite formation to its current location.
Members of the Matinecock tribe used this natural formation for protection, with evidence suggesting human presence dating back to 1000 BC.
The boulder stands on the private Greentree estate, with its upper section visible from Shelter Rock Road, particularly during winter months when vegetation thins.
The Town of North Hempstead Historic Landmarks Preservation Commission designated this geological formation as a Town Landmark in March 2007.
Location: New York
GPS coordinates: 40.78930,-73.69110
Latest update: March 9, 2025 14:11
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