De Witts Clinton Park

West 52nd and West 54th Streets, has two unusual features that harken to a time one hundred years ago — and millions of years ago!
The park’s most striking feature is an unusual rock formation that juts out just west of the sports field. This unique outcrop, dating back 450 million years (that’s right: read that again!), is called exotic terrane, meaning that a portion of the earth’s crust formed by two tectonic plates grafted together to create a rock composition unlike anything that surrounds it.