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On this day in Lewis & Clark history...

Lewis and Clark and several new recruits take the keelboat down the Ohio River somewhere between Louisville and Brandenburg, Kentucky.

From the journals...

Salt river, enters on the left side, This river is about 150 yards wide at its mouth, is navigable sixty miles, and enters the Ohio in a N. W. direction

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.