Fort Mandan (North Dakota)

Fort Mandan was a sturdy wooden trading post built in 1804-1805 in present-day North Dakota. It served as winter quarters for the Lewis and Clark Expedition, providing shelter, supplies, and a base for their journey to explore the Louisiana Purchase and the western territories. The fort was a key stop for trade with Native American tribes and helped the explorers prepare for their western trek. Today, the site is recognized as a historical landmark, commemorating the early American exploration and the interactions with Native peoples.