July 16, 1806

Off to the Marias

Lewis heads to the Marias River while Gass prepares wagon trucks above the Great Falls. Clark moves down the Yellowstone River by horse and Ordway paddles through the Gates of the Mountains.

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June 23, 1805

Portage route adjustments

Above the Great Falls of the Missouri, Lewis establishes an area to assemble the iron-framed boat, and the dugout canoe—abandoned the previous night—is brought in. On the way back to the lower camp, Clark adjusts the portage route. Prickly pears make walking difficult, and the men suffer from fatigue and sore feet.

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June 13, 1805

"sublimely grand specticle"

Lewis reaches the Grand Fall of Missouri and marvels at its ‘sublimely grand spectacle’. Several miles downriver, Clark gives Sacagawea a dose of salts as a purgative and the enlisted men move the boats 13 miles up the river.

Near the mouth of the Ohio at Fort Massac, General James Wilkinson has questions about the delegation of Native Peoples who recently arrived aboard the expedition’s barge (keelboat).

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April 7, 1805

Leaving Fort Mandan

The permanent party—under Capts. Lewis and Clark—leaves Fort Mandan in six dugout canoes and two larger pirogues bound for the Pacific Ocean. They make it only as far as Mitutanka, one of the Knife River Villages. The return party—under Cpl. Warfington—takes the barge and one canoe down the Missouri headed for St. Louis.

In Washington City, James Wilkinson writes to James Madison, United States Secretary of State, accepting his appointment as Governor of Louisiana Territory.

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Discover More

  • The Lewis and Clark Expedition: Day by Day by Gary E. Moulton (University of Nebraska Press, 2018). The story in prose, 14 May 1804–23 September 1806.
  • The Lewis and Clark Journals: An American Epic of Discovery (abridged) by Gary E. Moulton (University of Nebraska Press, 2003). Selected journal excerpts, 14 May 1804–23 September 1806.
  • The Lewis and Clark Journals. by Gary E. Moulton (University of Nebraska Press, 1983–2001). The complete story in 13 volumes.