Tuesday, December 24, 2002

Satellite Surveys Retrace the Lewis & Clark Expedition By Leonard David, Senior Space Writer, Space.com posted: 07:00 am ET, 02 August 2001 WASHINGTON -- Satellites are taking sharp-eyed snapshots of a trail traveled nearly 200 years ago that opened up vast expanses of the unexplored American frontier to the fledging United States. The heroic expedition led by Meriwether Lewis and William Clark from 1804-1806 took the team across approximately miles 3,700 (6,000 kilometers) of uncharted wilderness. Now, satellite imagery is mapping their pathway to help reveal the contrasting ecological, environmental and cultural changes that have occurred over the past two centuries. Lewis & Clark Revisited: Satellite Archeology Digs Out The Past By Leonard David, Senior Space Writer, Space.com posted: 07:00 am ET 23 December 2002 7:49:08 AM

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