Expedition Members
Learn about the people—and one dog—who were members of the Lewis and Clark Expedition.
On this day with Lewis & Clark
August 23, 1803
Ocean-going ships
In Pittsburgh, Meriwether Lewis waits for the completion the barge prior to departing down the Ohio River. Another traveler, F. André Michaux, tells of an ocean-going ship built there in 1802.
August 23, 1804
First bison kill
Blowing sand makes it hard to see. Despite that, Lewis collects a specimen of selenite, and Pvt. J. Field kills the expedition’s first bison. Camp is near present Vermillion, South Dakota.
August 23, 1805
The River of No Return
Clark sees the futility of trying to canoe down the Salmon River and turns back. At Fortunate Camp, Lewis has the dugouts sunk in a nearby pond and more Lemhi Shoshones arrive to help with the portage.
August 23, 1806
Passing the Moreau River
The expedition makes about forty miles stopping multiple times to wait for winds to abate or storms to pass. At their camp near present Forest City, South Dakota the mosquitoes are troublesome.
Featured Trail Segments
Eastern Beginnings
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
Among the Yanktons
21 August–8 September 1804
Moving along the present border between Nebraska and South Dakota, the expedition turns its ‘enlightened‘ attention to several features in the upper Missouri River mythology.
Instead of a volcano, they find blue earth, cliffs of white marl, and burning bluffs. Lewis becomes ill while testing one of the minerals he found. Instead of La Véndrye’s Golden Sands, they find hills of wind-blown loess. Instead of a Spirit Moundmountain of little people and devilish spirits, they find birds feeding on pissants atop present Spirit Mound.
Pvt. George Shannon fails to return from a hunting trip, and Patrick Gass is promoted to sergeant. At Calumet Bluff, their attention turns to receiving the Yankton Sioux. For two days, a council with speeches, gifts, songs, and dances is held.
At Old Baldy—present The Tower in South Dakota—everybody but the camp guard visits a prairie dog town, and they manage to capture one as a live specimen. He would travel to the Knife River Villages, Washington City, and reside in Peale’s Museum in Philadelphia.
Their encounters here had been encouraging, but Shannon is still missing, and the Lakota Sioux homelands are just ahead.
Day-by-Day Pages In-depth Articles
Down the Western Valleys
11 August–10 September 1805
Having reached the end of the navigable Missouri, the captains—aided by Lemhi Shoshone Chief Cameahwait, Sacagawea‘s brother—begin acquiring horses, making pack saddles, and caching supplies they can no longer take with them.
With the help of the Lemhi Shoshones, everything is carried across the Continental Divide. Clark and their new guide they call Toby, scout the Salmon River and find it is not navigable.
After nearly three weeks with the Shoshones, the expedition moves down the Lemhi River valley and heads up the North Fork Salmon River. The captains ignore Toby’s advice to follow the Indian Road, and they are forced to spend a snowy night near the summit of Lost Trail Pass.
Dropping down from Lost Trail Pass, the Flathead Salish give them a warm welcome and sell them some horses. The expedition then proceeds down the Bitterroot River Valley to Travelers’ Rest where they have yet to cross the Bitterroot Mountains.
Day-by-Day Pages In-depth Articles
The Final Leg
11 August–26 September 1806
While hunting on the Missouri River below present Williston, North Dakota, Lewis is accidentally shot through the flesh of his buttocks. The next day, they catch up to Clark’s party at Reunion Bay. As one united force, they are ready to sprint down the river to St. Louis.
At the Knife River Villages, they drop off the Charbonneau family and pick up Chief Sheheke and interpreter René Jusseaume who will visit Washington City.
The faithful paddlers meet several traders and receive flour, whiskey, woven shirts, and most importantly, news of the United States.
On 23 September 1806, the citizens of St. Louis—having given them up for dead—provide a boisterous welcome. The captains commence writing.
Day-by-Day Pages In-depth Articles
Native Nations Encountered
Northwest Coast
Plateau / Southwest
Northeast
Featured Artist Roger Cooke
The Yakima River
The Dismal Nitches
First Salmon Ceremony
Historical artist Roger Cooke worked with the Washington State Historical Society to recreate several Lewis and Clark scenes of their trek in Washington and Oregon. His art is featured on many interpretive signs at waysides throughout this area of the historic trail. Cooke’s works bring people to the forefront of the Lewis and Clark story. His illustrations feature not just the expedition members but Nez Perce, Palouse, Yakama, Wanapum, Walla Walla, Umatilla, Tenino, Wishram, and various Upper and Lower Chinook Peoples. He displays a full spectrum of emotions—even smiling Indians!—and multi-generational families near their villages. These are stories that modern cameras and digital editing cannot capture.
More
Calendar
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!
Language
From clichés and colorful sayings of the time to Native American languages, these pages feature the art of language.
The Arts
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.
Medicine on the Trail
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.
The Boats
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.
The Fur Trade
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.
Tools and Techniques
Explore the methods they used to get stuff done—from building canoes to making rope.
Synopsis of the Expedition
by Harry W. Fritz
The entire story is told in these five webpages.
Trail Diplomacy
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.
Hunting and Fishing
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.
Scientific Explorations
Their work in the emerging fields of botany, ethnography, geography, geology, and zoology are now considered classics of early American scientific literature.
Legacies
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.
Louisiana’s Purchase
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.
A Military Corps
Throughout the expedition the soldiers were expected to conform to the rules and routines of the frontier soldier of 1803.
Horse Travel
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.
The Trail
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.
Native American Nations
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.
People
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.
Other Topics
Other topics include music, holidays, High Potential Historic Sites, and an index of articles from We Proceeded On.
Related Explorers
Lewis and Clark were among several significant explorers of North America both before and after the expedition.
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.
Discover More
- The Lewis and Clark Expedition: Day by Day by Gary E. Moulton (University of Nebraska Press, 2018). The story in prose, 14 May 1804–23 September 1806.
- The Lewis and Clark Journals: An American Epic of Discovery (abridged) by Gary E. Moulton (University of Nebraska Press, 2003). Selected journal excerpts, 14 May 1804–23 September 1806.
- The Lewis and Clark Journals. by Gary E. Moulton (University of Nebraska Press, 1983–2001). The complete story in 13 volumes.
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Lewis and Clark Trail Alliance
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