1. Lewis and Clark Expedition

2. The Lewis and Clark Expedition
Part of the Lewis and Clark Corps of Discovery at the three forks of the Missouri River. Individuals from left are Coulter, guide; York, Clark's servant; Captain Meriwether Lewis; Captain William Clark; Sacagawea; Charbonneau, Sacagawea's husband. From the painting "Lewis and Clark at Three Forks" by Edgar S. Paxson.

3. Zebulon Pike Expedition

4. Zebulon Pike is arrested in Santa Fe.

5. Lewis and Clark have a peace council with the Otoe and Missouri chiefs.

6. Lewis and Clark’s men built cabins.

7. Lewis and Clark’s canoes are upset while trying to run rapids
Lewis and Clark’s canoes are upset while trying to run rapids. One crew member is nearly killed.

8. Native Americans are curious about York.

9. Lewis and Clark hunt grizzlies.

10. Grizzlies hunt Lewis and Clark

11. Sacagawea is reunited with her people, the Shoshone.

12. Lewis and Clark battle with the Minnetarees who have stolen their horses.