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Essex County, NJ

Riker Hill Fossil Site
Riker Hill Fossil Site, a National Natural Landmark in Essex County, NJ.

National Natural Landmarks in this county include:

← Back to listing of NNL sites in NJ.

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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