| 100% | EXPLORING | 9 | The primary activity of Lewis and Clark |
| 53% | STLOUIS | 7 | End of the Lewis and Clark Expedition, 9/23/1806 |
| 53% | HELENA | 6 | Capital that's the seat of Lewis and Clark County |
| 53% | OREGON | 6 | Farthest point of the Lewis and Clark expedition |
| 53% | HELENA | 6 | Seat of Lewis and Clark County |
| 51% | TRAILOFTHECENTURY | 17 | Lewis and Clark expedition, for the 1800s? |
| 47% | SNOOPING | 8 | Activity of Harriet the Spy and Nancy Drew |
| 46% | COMMERCE | 8 | The activity of buying and selling goods |
| 46% | HUEY | 4 | ___ Lewis and the News, "The Power of Love" band |
| 45% | NORTHMINCH | 10 | Channel separating Lewis and Harris from the mainland of Scotland |
| 43% | SIOUXCITY | 9 | Site of a Lewis and Clark stop, 1804 |
| 43% | MISSOURI | 8 | *Lewis and Clark and the Gateway Arch |
| 43% | OHIO | 4 | Columbus' state and the birthplace of Clark Gable |
| 43% | TEAGUE | 6 | Lewis —, director of films The Jewel of the Nile and Cujo |
| 42% | IDA | 3 | Home of Gem, Lewis and Clark Counties: Abbr. |
| 42% | SIOUXCITY | 9 | Iowa port on the Lewis and Clark Trail |
| 42% | SACAGAWEA | 9 | The Shoshone woman who accompanied Lewis and Clark |
| 42% | TIMETABLE | 9 | List of activities and the times they'll be done |
| 41% | OTO | 3 | Indian tribe encountered by Lewis and Clark |
| 41% | OTOES | 5 | First tribe encountered by Lewis and Clark |
| 41% | OTOE | 4 | Early tribe met by Lewis and Clark |
| 41% | OTOE | 4 | First tribe met by Lewis and Clark |
| 41% | SACAGAWEA | 9 | Shoshone woman who aided Lewis and Clark |
| 41% | SACAGAWEA | 9 | Indigenous woman who helped Lewis and Clark |
| 41% | OTOE | 4 | First tribe encountered by Lewis and Clark |
| 41% | HUEY | 4 | ___ Lewis and the News, a pop rock band who sang the hit song "The Power of Love" |
| 41% | MONTANA | 7 | Lewis and Clark Trail setting |
| 41% | KEELBOAT | 8 | Lewis and Clark expedition vessel |
| 41% | DUO | 3 | Lewis and Clark, for one |
| 41% | SURNAMES | 8 | Lewis and clark, e.g. |