Fort Mandan

The encampment was located on the Missouri River approximately twelve miles (19 km) from the site of present-day Washburn, North Dakota, which developed later.

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.

[6] In addition to seeking protection during the winter, Captains Meriwether Lewis and William Clark 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 had directed the captains to pursue diplomatic goals.

Lewis and Clark gradually adjusted their goals, working to form alliances with the Arikara, Hidatsa, and Mandan against the Teton.

When the Expedition returned to the area in 1806 while traveling east, the Mandan sent one of their chiefs, Sheheke, on the trip to Washington, D.C. to meet with Thomas Jefferson.

[11] The Corps spent much time during the winter to prepare for their travel in the spring, repairing equipment, making clothing, processing dried meats, etc.

[12] Clark noted that he gathered information from chief Sheheke about the route to the west in order to make a preliminary map.

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.