National Natural Landmarks

Palisades of the Hudson

Palisades of the Hudson
Palisades of the Hudson

Palisades of the Hudson is the best example of a thick diabase sill formation known in the United States. Columnar jointing, an olivine zone and thermal metamorphic effects are attributes found in rare combination at this site. The glaciated crest provides impressive evidence of the Pleistocene glacier.

Location: Bergen County, NJ ; Bergen County, NJ ; Rockland County, NY ; Rockland County, NY

Year designated: 1983

Acres: 1,900

Ownership: State




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