July 15, 1806

Yellowstone arrival

Clark crosses present Bozeman Pass and arrives at the Yellowstone River. Lewis organizes things at camp above the Great Falls of the Missouri, and McNeal fends off a grizzly bear by clubbing it.

 

July 14, 1806

Sacagawea knows a way

At the Great Falls of the Missouri, Lewis has the wheels and iron-framed boat dug up. Clark mires in Gallatin River swamps before finding an old bison trace. Sgt. Ordway‘s group paddles to Yorks Islands.

 

July 13, 1806

Two groups become three

At the Falls of the Missouri, Lewis finds last year’s cache has flooded. At the headwaters of the Missouri, Sgt. Ordway takes the canoes down the Missouri, and Clark heads up the Gallatin River valley by horse.

 

July 12, 1806

Navigating rivers

At mouth of the Sun River, Lewis deals with missing horses. He then crosses the Missouri in bull boats. Clark continues down the Jefferson River where Pvt. Howard’s canoe crashes into a sweeper.

 

July 11, 1806

10,000 buffalo

At the mouth of the Sun River, Lewis and his group hunt among 10,000 bison and begin making two bull boats from their hides. Clark’s group paddles down the Beaverhead while Sgt. Pryor herds their horses.

 

July 10, 1806

Down familiar rivers

Lewis hunts on the Sun River plains and Clark paddles down the Beaverhead River. Lewis finds lots of prickly pears and mud, and Clark passes six camps from the previous year.

 

July 9, 1806

Feasting on buffalo

Lewis nears the Great Falls of the Missouri feasting on buffalo, the first since 16 July 1805. At Fortunate Camp, Clark’s group prepares the dugout canoes, and Sgt. Ordway arrives with the stray horses.

 

July 8, 1806

Happy returns

Clark’s group returns to Fortunate Camp and opens a cache of tobacco. Lewis passes Haystack Butte and returns to the Missouri River plains. Ordway‘s group returns stray horses in the Big Hole Valley.

 

July 7, 1806

Over mountain and dale

Lewis follows the Road to the Buffalo over the Rockies, and Seaman is bitten by a beaver. While Clark’s group crosses the Big Hole Valley, four of his men spend the day searching for lost horses.

 

July 6, 1806

Approaching the Rockies

In their separate groups, the captains approach the Rocky Mountains. Clark crosses the divide and camps in the Big Hole Valley. Lewis crosses a prairie of knobs and camps near Lincoln, Montana.

 

July 5, 1806

Crossing rivers and creeks

Lewis continues east on the Road to the Buffalo naming Werner’s and Seaman’s creeks. Clark’s group crosses the West Fork Bitterroot River wetting several items and later camps in present Ross’s Hole.

 

July 2, 1806

Rest and torment

At Travelers’ Rest in present Lolo, Montana, the Nez Perce guides race their horses and have foot races. Pvts. McNeal and Goodrich suffer from syphilis, and mosquitoes torment everybody.

 

July 1, 1806

Plan to divide forces

The captains describe their plan to take different routes the Knife River villages. The Nez Perce guides agree to show Lewis the “Road to the Buffalo,” and he prepares several plant specimens.

 

June 30, 1806

Arriving at Travelers' Rest

The expedition travels thirty-one miles to return to their old camp, Travelers’ Rest. Along the way, Lewis’s horse falls. Clark is relieved to have the Bitterroot Mountains behind them.

 

June 26, 1806

Cache Mountain recovery

The travelers climb ‘Cache Mountain’ and recover the cargo left there on 17 June 1806. They continue to present-day Bald Mountain—their Greensward Camp—and are joined by another Nez Perce man.

 

June 14, 1806

Deciding to leave

At Weippe Prairie, the captains decide to risk the Bitterroot Mountain snow and order the men to start packing and gathering horses. Clark shudders with the expectation of great difficulties ahead.

 

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.

 

June 3, 1806

Early Bitterroot crossing

Long Camp, Kamiah, ID When the Nez Perce send an “express” to make an early Bitterroot crossing, the captains hope they too can now cross. The Indians inform them otherwise. They plan to move to the Weippe Prairie in one week.