| Answer | Crossword Clue |
|---|---|
| IDAHO | Lewis and Clark are counties in it |
| IDAHO | Its counties include both Lewis and Clark |
| IDA | St. with both Lewis and Clark counties |
| IDAHO | Lewis and Clark crossed it |
| HELENA | Capital in Lewis and Clark County |
| HELENA | State capital in Lewis and Clark County |
| WESTCOAST | Lewis and Clark got there in fall 1805 |
| OTOE | Tribe met by Lewis and Clark in 1804 |
| OTO | Tribe encountered early in the Lewis and Clark expedition |
| OTO | Tribe that met with Lewis and Clark in 1804 |
