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August 10, 1804

The Expedition travels 22½ miles up the Missouri River and camps across from Blackbird Hill, a high hill where the 'King of the Mahars' is buried.

from this Island the high hill which the Late King of the Mahars was buried on is high and bears West 4 miles—

William Clark
Indians crossing a small river joining the Missouri below a hill

August 10, 1805

Clark's group manages to move the canoes 13 miles up the Beaverhead River south of present Dillon. Lewis reaches the end of the Beaverhead River and turns west towards the continental divide in search of the Shoshone and their horses.

proceeded on the valley wider & covered with high Grass.
the River Small & amazeing crooked,
it is now gitting a Small Stream verry crooked and Shole in places, So that we have to wade and hall the canoes over.

John Ordway
Small river winding through a grassy valley

August 10, 1806

Lewis plugs cracks in the canoes with charcoal and tallow. In the evening, his group continues down the Missouri camping at present Williston, North Dakota. Clark waits for Lewis a few miles down the river near Tobacco Garden Creek.

The morning was somewhat cloudy I therefore apprehended rain however it shortly after became fair.

Meriwether Lewis
Muddy river and island with thick cottonwood forest