Fort Mandan was the name of the encampment which the

Lewis and Clark Expedition The Lewis and Clark Expedition, also known as the Corps of Discovery Expedition, was the United States expedition to cross the newly acquired western portion of the country after the Louisiana Purchase. The Corps of Discovery was a select gro ...

built for wintering over in 1804–1805. The encampment was located on the

Missouri River The Missouri River is a river in the Central United States, Central and Mountain states, Mountain West regions of the United States. The nation's longest, it rises in the eastern Centennial Mountains of the Bitterroot Range of the Rocky Moun ...

approximately from the site of present-day

Washburn, North Dakota Washburn is a city in southern McLean County, North Dakota, McLean County, North Dakota, United States. Located along the upper Missouri River, it is the county seat of McLean County. The population was 1,300 at the 2020 United States census, 202 ...

, which developed later. The precise location is not known for certain. It is believed now to be under the water of the river. A replica of the fort has been constructed near the original site.

Construction and conditions

The fort was built of cottonwood lumber cut from the riverbanks. It was triangular in shape, with high walls on all sides, an interior open space between structures, and a gate facing the Missouri River, by which the party would normally travel. Storage rooms provided a safe place to keep supplies. Lewis and Clark shared a room. The men of the

Corps of Discovery The Corps of Discovery was a specially established unit of the United States Army which formed the nucleus of the Lewis and Clark Expedition that took place between May 1804 and September 1806. The Corps was led jointly by Captain Meriwether Lewi ...

started the fort on November 2, 1804. Fort Mandan was completed on November 27, 1804. They wintered there until April 6, 1805. According to the journals, they built the fort slightly downriver from the five villages of the

Mandan The Mandan () are a Native American tribe of the Great Plains who have lived for centuries primarily in what is now North Dakota. They are enrolled in the Three Affiliated Tribes of the Fort Berthold Reservation. About half of the Mandan still ...

and

Hidatsa The Hidatsa ( ) are a Siouan people. They are enrolled in the federally recognized Three Affiliated Tribes of the Fort Berthold Reservation in North Dakota. Their language is related to that of the Crow, and they are sometimes considered a pa ...

nations. The winter was very cold, with temperatures sometimes dipping to , but the fort provided some protection from the elements. Several of the men of the expedition suffered

frostbite Frostbite is a skin injury that occurs when someone is exposed to extremely low temperatures, causing the freezing of the skin or other tissues, commonly affecting the fingers, toes, nose, ears, cheeks and chin areas. Most often, frostbite occ ...

due to the severely cold conditions, which set in after only brief exposure.

Diplomacy

In addition to seeking protection during the winter, Captains

Meriwether Lewis Meriwether Lewis (August 18, 1774 – October 11, 1809) was an American explorer, soldier, politician, and public administrator, best known for his role as the leader of the Lewis and Clark Expedition, also known as the Corps of Discovery, with ...

and

William Clark William Clark (August 1, 1770 – September 1, 1838) was an American explorer, soldier, Indian agent, and territorial governor. A native of Virginia, he grew up in pre-statehood Kentucky before later settling in what became the state of Misso ...

spent much of this period on diplomatic efforts with the several Native American tribes who lived near the fort. As the expedition was to establish the first official contact between the United States and numerous nations across the territory, President

Thomas Jefferson Thomas Jefferson (, 1743July 4, 1826) was an American Founding Fathers of the United States, Founding Father and the third president of the United States from 1801 to 1809. He was the primary author of the United States Declaration of Indepe ...

had directed the captains to pursue diplomatic goals. They were to try to establish friendly relations with as many tribes as possible, and to prepare them for the arrival of United States traders to the region. They were also to claim United States territorial

sovereignty Sovereignty can generally be defined as supreme authority. Sovereignty entails hierarchy within a state as well as external autonomy for states. In any state, sovereignty is assigned to the person, body or institution that has the ultimate au ...

over the land, which had been occupied by Native Americans for thousands of years. The historic tribes had differing conceptions of property use than did the European Americans. The Teton people had already shown resistance to the expedition. Lewis and Clark gradually adjusted their goals, working to form alliances with the

Arikara The Arikara ( ), also known as Sahnish,
''Mandan, Hidatsa, and Arikara Nation.'' (Retrieved Sep 29, 2011) ...

, and

against the Teton.James P. Rhonda, ''Lewis and Clark among the Indians'' (Lincoln: University of Nebraska Press, 1984), 81-83. The Mandan were cautiously favorable toward such an alliance. When the Expedition returned to the area in 1806 while traveling east, the Mandan sent one of their chiefs, ''

Sheheke Sheheke, Sheheke-shote (Mandan: Shehék Shót), translated as White Coyote, and also known as Coyote or Big White (c. 1766–1812), was a Mandan chief. His name is also sometimes spelled Shahaka. Sheheke was at the time of the arrival of Meriwe ...

,'' on the trip to

Washington, D.C. Washington, D.C., formally the District of Columbia and commonly known as Washington or D.C., is the capital city and federal district of the United States. The city is on the Potomac River, across from Virginia, and shares land borders with ...

to meet with Thomas Jefferson. But the Mandan did not commit to trading with the United States at the expense of their previous partnership with Great Britain through Canadian traders. The Hidatsa strongly resisted the American diplomatic efforts, often avoiding meeting with Lewis and Clark.

Preparations for spring travel

The Corps spent much time during the winter to prepare for their travel in the spring, repairing equipment, making clothing, processing dried meats, etc. In addition, on the way to their winter site, they had used maps made by previous explorers. From that point on in their westward journey, they would enter territory unfamiliar to Europeans according to known documentation. Clark noted that he gathered information from chief

about the route to the west in order to make a preliminary map. Not knowing if they would survive the journey, Lewis and Clark used the winter to compile their descriptions of

tributaries A tributary, or an ''affluent'', is a stream or river that flows into a larger stream ('' main stem'' or ''"parent"''), river, or a lake. A tributary does not flow directly into a sea or ocean. Tributaries, and the main stem river into which the ...

of the Missouri River, their observations about the Native nations encountered, and their descriptions of plant and mineral specimens which they had collected. All of this material was compiled into a manuscript which they called the ''Mandan Miscellany''. In the spring the captains sent a copy of the manuscript to government officials in St. Louis via their large

keelboat A keelboat is a riverine cargo-capable working boat, or a small- to mid-sized recreational sailing yacht. The boats in the first category have shallow structural keels, and are nearly flat-bottomed and often used leeboards if forced in open w ...

.Clay S. Jenkinson, ed, ''A Vast and Open Plain: The Writings of the Lewis and Clark Expedition in North Dakota, 1804-1806 (Bismarck: State Historical Society of North Dakota, 2003), pp. 437-439 The boat was planned to return before their expected arrival at the Mandan area in 1806.

Sacagawea

Lewis and Clark appear to have first met

Sacagawea Sacagawea ( or ; also spelled Sakakawea or Sacajawea; May – December 20, 1812)Sacagawea
." Her husband

Toussaint Charbonneau Toussaint Charbonneau (; March 20, 1767 – August 12, 1843) was a French Canadian explorer, fur trapper and merchant who is best known for his role in the Lewis and Clark Expedition as the husband of Sacagawea. Early years Charbonneau was ...

served as a Hidatsa interpreter for the expedition, and the journals imply that she lived at the fort with him. Their son

Jean Baptiste Charbonneau Jean Baptiste Charbonneau (February 11, 1805 – May 16, 1866), sometimes known in childhood as Pompey or Little Pomp, was an American explorer, guide, Animal trapping, fur trapper, trader, military scout during the Mexican–American War, ''alcal ...

, whom she kept with her throughout the expedition, was born on February 11, 1805, possibly at the fort.''Lewis and Clark Journals'', 11 February 1805
University of Nebraska Lincoln

1806 and after

When the Corps passed back through the area in August 1806 on their return journey to the East, they found the fort had burnt to the ground. The cause is unknown. Since that time, the

has slowly eroded the bank and shifted course to the east, eroding away the former site of the fort. The Lewis and Clark Fort Mandan Foundation built a replica of the fort along the river, from the intersection of ND 200A and

US 83 U.S. Route 83 (US 83) is a major north–south United States Numbered Highway that extends in the central United States. Only four other north–south routes are longer: US 1, US 41, US 59, and US 87, while U ...

. Made according to materials and design as described in the expedition's journals, it is located near the North Dakota Lewis and Clark Interpretive Center. The fort replica holds reproduction items, such as "Meriwether Lewis' field desk, William Clark's map-making tools, bunks the men slept in, equipment they carried in the field, clothes they wore, and the blacksmith's forge." In addition, the site has staff to give tours and interpretive programs about the Lewis and Clark Expedition and its significance in United States, state and regional history. Walking trails go along the property and the river.Lewis and Clark Fort Mandan Foundation
, official website

References

External links

Fort Mandan Foundation
official website {{coord, 47, 17, 53, N, 101, 5, 14, W, display=title Lewis and Clark Expedition Conflicts in 1805 Landmarks in North Dakota

Military and war museums in North Dakota Museums in McLean County, North Dakota History museums in North Dakota Pre-statehood history of North Dakota Mandan, Hidatsa, and Arikara Nation Forts along the Missouri River Buildings and structures completed in 1804