June 4, 1806
Seeking guides and diplomats

Lewis fails to secure Nez Perce guides to accompany him to the Falls of the Missouri. Clark seeks Nez Perce guides to accompany him to the Yellowstone River and to parley with the Shoshones.
Seeking guides and diplomats

Lewis fails to secure Nez Perce guides to accompany him to the Falls of the Missouri. Clark seeks Nez Perce guides to accompany him to the Yellowstone River and to parley with the Shoshones.
Managing horses

At Long Camp in present-day Kamiah, Idaho, a horse corral is made, and Lewis’s horse must be shot. Ordway brings in seventeen tainted salmon, and Drouillard returns with Sergeant Floyd‘s old tomahawk.
Lewis's woodpecker

At Long Camp, Lewis begins his twelve-day treatise on natural history. Today, he describes the Columbian ground squirrel and Lewis’s woodpecker, both new to science. Sgt. Ordway and two others leave for the Snake River to buy salmon, and a Nez Perce chief says the expedition can use any of his horses for food. Young Jean Baptiste continues to improve.
A South Fork village

At Long Camp, Jean Baptiste’s abscess improves, and the canoe-builders finish their dugout. Brothers Joseph and Reubin Field return from a village on the South Fork Clearwater River with a large quantity of cous bread and root, and plans are made to trade for more. Some Nez Perce give them a horse to eat.
Establishing Long Camp

Nez Perce People help ferry the expedition’s gear, horses, and personnel across the Clearwater River at Kamiah in present Idaho. Broken Arm (Tunnachemootoolt) and Red Grizzly Bear (Xàxaac `ilpilp) show the captains how they castrate horses, and the captains give the latter a grizzly bear claw necklace.
Nez Perce manner and dress

The expedition moves a few miles from Lawyer Canyon to the Clearwater River in present Kamiah, Idaho. Lewis describes in detail the manner, appearance, dress, ornamentation, and hairstyles of the Nez Perce.
Swallowing objections

At Lawyer Creek near Kamiah, Idaho, the Nez Perce chiefs share what they heard at yesterday’s council and the People are told to swallow their objections with their mush. The captains then give a gun and ammunition to Walammottinin, Twisted Hair, as payment for watching their horses the previous winter. They also form a plan for crossing the Bitterroot Mountains.