It seems the 315-year-old map was found by divers capturing Google Maps underwater street view images.

CNN: Heather Kelly,

Mr. Agarwala started scrolling through the county planning department's map of parcel lines, turning to Google Maps to get a satellite view of streets that looked promising.

WSJ: Building Outside the Box

New features include "immersive imagery, " and the map itself is now the user interface -- with Street View and Google Earth integration.

ENGADGET