On this day in Lewis & Clark history...
The Expedition splits into two parties. Because of his inflamed ankle, Clark remains with the canoes and camps near Beaverhead rock, a landmark named by the Indians. Lewis is further ahead near present Dillon, Montana.
From the journals...
Friday August 9th 1805.
I directed my course across the bottom to the Stard. plain led left the beaver's head about 2 miles to my left and interscepted the river about 8 miles from the point at which I had left it; I then waded it and continued my rout to the point where I could observe that entered the mountain, but not being able to reach that place, changed no direction to the river which I struck some miles below the mountain and encamped for the evening having traveled 16 M.
Friday 9th August 1805.
the River and Smooth prarie the Same as yesterday.