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On this day in Lewis & Clark history...

The day starts with rain which is followed by snow and hail. The Weather Diary has the only extant journal entries or notes for this day.

From the journals...

Rain Suceeded by Snow & hail

William Clark

Knife River pots in a Mandan shelter

nife River Mandan pots in a fire ring

Photo: Knife River Indian Villages National Historic Site, U.S. National Park Service.