Lewis and Clark's expedition explored the newly acquired Louisiana Purchase lands, strengthening the US claim to the Oregon Territory. They gained extensive knowledge of the American West's geography by discovering over 100 new plant and animal species, but also found no direct water route across the continent. Their journey helped open diplomatic relations with Native American tribes.

1. Lewis & Clark’s
Achievements

2. They explored the northern
Louisiana Purchase lands.

3. They strengthened the U.S.
claim to the Oregon Territory.

4. The U.S. gained an extensive knowledge
of the geography of the American West.

5. They discovered that there in no direct
water route across the continent.

6. They helped open diplomatic
relations with the Indians.

8. They observed and described 178
plants and 122 species of animals.
They discovered 22 different animals…

9. Black-tailed Prairie Dog

10. Bushy-tailed Woodrat

11. Grizzly Bear

12. Mule Deer

13. Pronghorn Antelope

14. Swift Fox

15. White-tailed Jackrabbit

16. Black-billed Magpie

17. Clark’s
Nutcracker

18. Common Poorwill

19. Greater Sage-grouse

20. Interior Least Tern

21. Lewis’
Woodpecker

22. McCown’s Longspur

23. Trumpeter Swan

24. Western
Rattlesnake

25. Western Hognose Snake

26. Blue Catfish

27. Channel Catfish

28. Cutthroat Trout

29. Goldeye

30. Mountain Sucker

31. The End
THE
END