Original Map of Expedition
From 1804 to 1806, Meriwether Lewis and
William Clark led an expedition to explore the region from the
Mississippi River to the Pacific Ocean. The map shown here is
a portion of a larger map that Samuel Lewis copied from the
original drawn by Clark. It is titled "Across the Western
Portion of North America from the Mississippi River to the
Pacific Ocean." This section shows the Columbia River
flowing through the current states of Washington and Oregon to
its mouth at the Pacific. Along the edges of the river are the
names of various Native American tribes that the expedition
encountered along with the number of people at each site.
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The City of Wood River, Illinois
111 North Wood River Avenue
Wood River, Illinois 62095
(618) 251-3100
This page last modified
05/01/13 .
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