On this day in Lewis & Clark history...
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 the journals...
10th August Friday 1804
from this Island the high hill which the Late King of the Mahars was buried on is high and bears West 4 miles—
Painting by Karl Bodmer circa 1833.
No. 31 growth of the sand bars near the banks of the river—
taken the 10th of August 1804
Field horsetail, Equisetum arvense
Photo created by Ammodramus who has released it to the public domain.