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Eric Sanderson pictures New York -- before the City


Eric Sanderson pictures New York -- before the City
Eric Sanderson pictures New York -- before the City
Duration: 16:09

400 years after Hudson found New York harbor, Eric Sanderson shares how he made a 3D map of Mannahatta's fascinating pre-city ecology of hills, rivers, wildlife -- accurate down to the block -- when Times Square was a wetland and you couldn't get delivery.