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On this day in Lewis & Clark history...

The weather warms enough that the men are able to set pickets. Clark organizes the geographic information that he has received from Jefferson and others, the Indians, and the fur trade clerk that recently visited Fort Mandan.

From the journals...

I engage my self in Connecting the Countrey from information.

William Clark

David Thompson's map: Bend of the Missouri River, 1798

David Thompson's hand drawn map

From the U.S. Library of Congress.

a clear pleasant day. we began to Set up the pickets of our fort.

Joseph Whitehouse

Fort Mandan

Log fort on sunny winter day

Photo ©2012 Gooseterrain2. Permission via the Creative Commons CC0 1.0 Universal Public Domain Dedication.