2001 Using a high-powered computer and millions of bits of data from geological and oceanographic surveys over the past 100 years, University of Washington staffers produced this digital image of the city. The result is a picture that strips away most of man's interventions, laying bare the landscape carved by the Vashon Glacier some 14,000 years ago. (Data from Lake Washington and Lake Union had not been incorporated into the system.)

UNIVERSITY OF WASHINGTON

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