| Answer | Crossword Clue |
|---|---|
| OTO | Tribe visited by Lewis and Clark |
| BISMARCK | State capital whose site was visited by Lewis and Clark |
| OTOE | Tribe met by Lewis and Clark |
| OTOE | Tribe encountered by Lewis and Clark |
| OTOE | First tribe encountered by Lewis and Clark |
| OTOE | First tribe met by Lewis and Clark |
| OTO | Indian tribe encountered by Lewis and Clark |
| OTOE | Early tribe met by Lewis and Clark |
| OTOES | First tribe encountered by Lewis and Clark |
| OTOE | First Indian tribe met by Lewis and Clark |
| OTOE | Tribe met by Lewis and Clark in 1804 |
