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Ironsides Island

Ironsides Island
Ironsides Island

Ironsides Island is a glacially-scoured granite knoll. The site's most significant feature is the breeding colony of great blue herons.

Location: Jefferson County, NY ; St. Lawrence County, NY

Year designated: 1967

Acres: 20

Ownership: Private

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Please remember, National Natural Landmarks (NNLs) are not national parks. NNL status does not indicate public ownership, and many sites are not open for visitation.

Last Updated: June 28, 2012