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Eric Sanderson:
New York — before the City

TEDGlobal 2009 · 16:09 · Filmed Jul 2009

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.

Landscape ecologist
Armed with an 18th-century map, a GPS and reams of data, Eric Sanderson has re-plotted the Manhattan of 1609, just in time for New York's quadricentennial. Full bio