In 1803, Thomas Jefferson and the United States gained a large amount of land to the west of the Mississippi River. When France sold the United States the Louisiana Purchase, life for every human in the United States completely changed. After Lewis and Clark explored the land, many settlers began to venture past the Mississippi River into the Louisiana Purchase. For Native American tribes in the West, life as they knew it would begin to fade away. Lewis and Clark spent their longest stay on the journey near present-day Washburn, North Dakota where they stayed for the winter. Sakakawea also joined the Corps of Discovery in North Dakota.
Finding Aids for the Louisiana Purchase:
612 East Boulevard Ave.
Bismarck, North Dakota 58505
Museum Store: 8am - 5pm M-F; Sat. & Sun. 10am - 5pm.
State Archives: 8am - 4:30pm., M-F, except legal holidays, and 2nd Sat. of each month, 10am - 4:30 pm.
State Historical Society offices: 8am - 5pm M-F, except legal holidays.
phone: (701) 328-2666
fax: (701) 328-3710