'(<a href="http://www.j-archive.com/media/2010-10-27_DJ_18.wmv">Jimmy of the Clue Crew presents the clue on a map.</a>)  The Oregon Trail started at Independence, Missouri and crossed the Great Plains by following this river'
the North Platte River
AMERICAN HISTORY: The Oregon Trail started at Independence, Missouri and crossed the Great Plains by following this river
The Oregon Trail started at Independence, Missouri and crossed the Great Plains by following this river
The Oregon Trail started at Independence, Missouri and crossed the Great Plains by following this river
AMERICAN HISTORY
the North Platte River
AMERICAN HISTORY