Fort Mandan - Lewis & Clark expedition

On October 24, 1804 the expedition met with Mandan Chief, Big White to establish friendly relationships with the tribe and to seek protection from the coming winter. The captains decided to build their winter lodgings/fort across the river from the Mandan village. Naturally the fort was named after the Mandans.

It is believed Lewis and Clark first met Sacagawea and her husband Toussaint Charbonneau near Fort Mandan. Both would serve as interpreters and guides on the rest of the trip.