September 25, 1804
Good humor left behind

At Good Humor Island at present Pierre, South Dakota, a council with the Lakota Sioux brings diplomatic speeches, a military parade, and gifts. When the captains try to disembark, weapons are raised.
Good humor left behind

At Good Humor Island at present Pierre, South Dakota, a council with the Lakota Sioux brings diplomatic speeches, a military parade, and gifts. When the captains try to disembark, weapons are raised.
Prairie dog town

The captains climb Old Baldy—The Tower in present South Dakota. Everybody but the camp guard visits a prairie dog town, and they eventually catch one as a specimen. Pvt. Shannon is still missing.
Otoe's council, Floyd's illness

During a council at Fish Camp near present Homer, Nebraska, speeches with the Otoes are exchanged, but they appear dissatisfied with their gifts. Sgt. Floyd becomes seriously ill requiring urgent care.
The Omahas arrive

At Fish Camp near present Homer, Nebraska, the Omahas arrive for a council. Three Otoe chiefs witnessing deserter Pvt. Reed’s corporeal punishment ask for mercy, and Lewis’s birthday is celebrated.
Sudden storm

When they encounter a sudden storm, the men jump into the water to save the boats. An elk is wounded, and Lewis’s dog, Seaman, joins the chase. They encamp southwest of present Langdon, Missouri.