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  NEW YORK STATE GEOLOGICAL SURVEY
  BUILDING STONES OF THE EMPIRE STATE PLAZA If you can spare an hour of your time, you can take a walking tour and examine some of the most attractive and interesting rocks from three continents, spanning a period of time in the Earth’s history going back more than one billion years. This can be done within the 98-acre Governor Nelson A. Rockefeller Empire State Plaza at Albany, New York. The eleven buildings that make up the Empire State Plaza are concrete and steel structures faced with more than 600,000 cubic feet of building stones from the three major rock classes – igneous, sedimentary and metamorphic.
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