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On this day in Lewis & Clark history...

Lewis and Clark take the keelboat down the Ohio River. Near this date, they round the big bend in the river near present Leavenworth, Indiana and pass the Little Blue River.

From the journals...

Little Blue river

Zadok Cramer
Snippet from a book used by Meriwether Lewis to help navigate the Ohio River

Quotation and picture from The Navigator: Or, the Trader's Useful Guide in Navigating the Monongehela, Allegheny, Ohio and Mississippi Rivers by Zadok Cramer, Fifth Edition, published in 1806. Lewis used an earlier edition to help him navigate and describe the journey down the Ohio River.