Watercolor provided by waynewilsonart.com
Redstone Old Fort
On this day, Lewis likely reaches the Monongahela River at present Brownsville, Pennsylvania—called Redstone Old Fort in 1803. While on the Cumberland Road, he would have passed Uniontown and Fort Necessity where George Washington surrendered to French and Indian forces in 1754. Traveling the same road one month prior to Lewis, Thaddeus Harris describes the journey.
Favorable winds
After a stormy evening, favorable winds push the boats up the Missouri River. After 20 miles, they encamp west of present Corning, Missouri. Lewis collects a white sage specimen—now lost, but otherwise, the day appears uneventful.
Leaving the Great Falls
Lewis and the last of his crew leave the White Bear Islands above the Great Falls of the Missouri. Traveling by land, Lewis, Pvt. Lepage, and Sacagawea pass by a Blackfeet Sun Dance lodge. At the canoe camp near present Ulm, Clark has "an emensity of meat" dried to make pemmican, and everyone is tormented by mosquitoes.
Two groups become three
The expedition splits into three groups, each taking a different route to reach the mouth of the Yellowstone. At the headwaters of the Missouri, Sgt. Ordway and nine enlisted men head down the Missouri in dugout canoes. Clark and those remaining in his group head up the Gallatin River valley on horseback. Sacagawea recommends that they head to present Bozeman [...]
10 January–30 August 1803
The Lewis and Clark Expedition ostensibly began in February 1801 when President Thomas Jefferson wrote a letter to Army commander General James Wilkinson requesting that Lieutenant Meriwether Lewis become the President’s personal secretary. Exploration of North America’s western half had long been a goal of the president, and now he had a young protégé who might lead such an expedition.
On 18 January 1803, Lewis hand-delivers to the U.S. Congress the President’s request to fund what would become known as the Lewis and Clark Expedition. The President works in Washington City and Monticello to craft instructions and line up the best talent to assist Lewis. In France, three diplomats negotiate with Napoleon Bonaparte to purchase the Louisiana Territory.
Meriwether receives training, supplies and equipment in Philadelphia and avails himself of armaments and specialized equipment—including a collapsable iron-framed boat—at the Schuylkill and Harpers Ferry arsenals. By July 1803, everything is at Fort Fayette in Pittsburgh. All Lewis needs is a large boat to carry everything down the Ohio. He also needs to know if William Clark will accept his invitation to join him.
Day-by-Day Pages In-depth Articles
14 May–20 July 1804
On 14 May 1804—after more than a year of preparation and travel—the boats leave Camp River Dubois and head up the Missouri River. At St. Charles, the two captains, Clark’s slave York, interpreter George Drouillard, eight or nine French engagés, 34 enlisted men, and Lewis’s dog Seaman depart in three boats: the barge and two large pirogues.
Everyone quickly learns of the struggles and hazards of moving up the Missouri with its many sawyers and sandbars. Despite the overloaded boats and several close calls, they safely pass many landmarks made familiar by earlier traders from St. Louis.
Crossing the present state of Missouri and then heading north along the Kansas-Missouri border, they pass the homelands of the Omaha, Kansa, Otoe, and Pawnee. On 21 July, they reach the mouth of the Platte where only a handful of traders had ever continued north towards the Knife River Villages.
Day-by-Day Pages In-depth Articles
13 July–17 August 1805
Above the Great Falls of the Missouri, the expedition continues up the Missouri River in eight dugout canoes. There, the river flows along and through the eastern arms of the Rocky Mountains. Clark lists each river constriction as a gate, gap, or narrow.
| Clark’s description | Date | Present-day name | |
|---|---|---|---|
| 1. | Rockey Mountains at Pine Island rapid | 16 July 1805 | Tower Rock |
| 2. | Great Gate of the Rock Mouts. | 19 July 1805 | Gates of the Mountains |
| 3. | Little Gate of the Mountain | 25 July 1805 | Toston Dam, Lombard |
| – | three forks of Missouri | 27 July 1805 | Three Forks, Headwaters of the Missouri |
| 4. | Narrows of the 3d Mountain | 1 August 1805 | Jefferson Canyon |
| 5. | 4th Gap of the Mountain | 15 August 1805 | Rattlesnake Cliffs |
| 6. | Rapid at the narrows of 5th Mtn. | 16 August 1805 | Beaverhead Canyon Gateway |
1 From Clark’s list of “Estimated Distances”.
Below Three Forks, Montana, the Missouri River ends—fed by three forks named by the captains: the Gallatin, Madison, and Jefferson. They continue up the Jefferson until it too forks into three rivers.
The Beaverhead River is only a sixth the size of the Missouri, and the enlisted men must walk the heavy dugouts up the shallow rapids. They are encouraged when Sacagawea sees familiar landmarks such as Beaverhead Rock.
To get to the waters of the Columbia, they would need horses. The captains take turns scouting ahead by land to find the Shoshones who they hope will have horses. While crossing the Continental Divide at Lemhi Pass, Lewis finally meets them.
Clark would continue with most of the party moving the boats up the shallow Beaverhead. By the time they reach the end of the navigable river, Lewis and a group of Shoshones are waiting for them. One journalist would later name the place Fortunate Camp.
Day-by-Day Pages In-depth Articles
10 June–14 July 1806
With the acquisition of horses, Native Nations crossing the Rocky Mountains to hunt for bison became more common. Two of their trails are used by the captains—in separate groups—to return to the bison-rich plains.
After crossing the Bitterroot Mountains on what is known today as the Lolo Trail, the expedition divides forces at Travelers’ Rest. Lewis takes one group east and north up the Blackfoot River and then over Lewis and Clark Pass. They return to their old camp above the Great Falls of the Missouri to retrieve supplies and specimens cached there.
From Travelers’ Rest, Clark goes up the Bitterroot River and crosses the Continental Divide at present Gibbons Pass. They cross the Big Hole Valley and return to Fortunate Camp where they had cached tobacco, food, and most of the canoes.
At the Headwaters of the Missouri, Sgt. Ordway’s detachment paddles the canoes down the Missouri destined for the portage of the Great Falls. Clark’s group–along with all the horses—travel up the Gallatin River valley on their way to the Yellowstone River.
Day-by-Day Pages In-depth Articles
A working dog
Whether he was Lewis’s pet or the expedition’s working dog—or both—he was likely smaller than today’s Newfoundland dog. Did he get lost on the way home or was he present at Lewis’s death?
Private
At Long Camp, Potts nearly drowned when the dugout canoe he was in was swamped in the Clearwater River. But Potts’s worst accident happened when the Corps retraced the Northern Nez Perce Trail through the Bitterroots.
Enslaved Afrikan Adventurer
Two years after the conclusion of the historic Lewis and Clark expedition, York and his enslaver, the Virginia-born patrician William Clark, were at odds.
Meriwether Lewis William Clark Sacagawea York Jean Baptiste Charbonneau Seaman All Members
The Bears Tooth
Fort Owen—Flathead Village
Lolo Hot Springs
The American portraitist, artist and illustrator John Mix Stanley (1814-1872), served as one of the official artists with the Stevens railroad survey party to the Northwest. His record of highlights along the route often combined documentary verisimilitude with romantic fantasy.
The Lewis and Clark Expedition benefited from the Indians’ knowledge and support. Maps, route information, food, horses, open-handed friendship—all gave the Corps of Discovery the edge that spelled the difference between success and failure.
The success of the Lewis and Clark Expedition was due to its many members and the people they met, including politicians, Eastern gentleman scientists, traders, and the many people already living in the American west.
Their work in the emerging fields of botany, ethnography, geography, geology, and zoology are now considered classics of early American scientific literature.
Legacy is a very slippery sort of term. If we could erase our myth concepts of Lewis and Clark … it might reawaken something really extraordinary in our national consciousness.
The President’s representatives in Paris had bargained successfully with Napoleon’s bureaucrats not only to buy the port of New Orleans, then the keystone of the continent, but also to acquire, at three cents an acre, an area extending from the Mississippi River to . . . where? No one knew until Meriwether Lewis stood at the crest of the Rocky Mountains at a place known today as Lemhi Pass, on 12 August 1805.
To cross the Rocky Mountains, the Lewis and Clark Expedition needed horses and the skills to manage them. Despite their seemingly constant struggle to find missing and stolen horses, as a kind of calvary unit, they left hoof prints on approximately 1,500 miles of western terrain.
Because of the literate journalists, historians and visual artists can tell the Expedition’s story. When they celebrated with song and dance, we too can share in the experience.
Other topics include music, holidays, High Potential Historic Sites, and an index of articles from We Proceeded On.
Starting with its genesis in Jefferson’s Monticello, Lewis’s training and preparations in Philadelphia, and the barge’s excursion down the Ohio River, the route they took, often called the Lewis and Clark Trail, crosses the continent weaving an epic tale of western exploration treasured by many today.
Lewis and Clark left behind among many Indians a legacy of nonviolent contact. Those who came later enjoyed that legacy and too often betrayed it.
Although hunting and fishing were often considered a ‘gentleman’s sport’ especially in Europe, hunting and fishing for Native Americans and Americans alike were a matter of survival. The success of the Lewis and Clark Expedition depended on the success of its hunters.
Expedition Calendar
Links to every day-by-day page in a calendar format spanning 31 August 1803 to 26 September 1806. A page every day!
Starting at Pittsburgh, traveling to the Pacific Ocean, and then returning to St. Louis, the Lewis and Clark Expedition traveled approximately 10,600 miles. Of that, 85%—over 9,000 miles—was by boat. To understand travel in the early 1800 American West is to understand the boats and challenges of river navigation.
Lewis and Clark were among several significant explorers of North America both before and after the expedition.
Given President Jefferson’s directive to establish commerce, the captains worked extensively within a long-established network of North American fur trade. Part of their mission was to help establish the United States of America’s position within that industry.
From clichés and colorful sayings of the time to Native American languages, these pages feature the art of language.
Throughout the expedition the soldiers were expected to conform to the rules and routines of the frontier soldier of 1803.
From major crisis such as the death of Sgt. Floyd, Lewis’s gunshot wound, and the illness of Sacagawea to minor events such as sexually transmitted diseases, mosquito-born illnesses, and deep cuts, the medical aspects of the Lewis and Clark Expedition provide an interesting topic of study.
Experience the Lewis and Clark Trail
The Lewis and Clark Trail Experience—our sister site at lewisandclark.travel—connects the world to people and places on the Lewis and Clark Trail.
This site is provided as a public service by the
Lewis and Clark Trail Alliance
with additional funding from the following:
