Across
- 4. widely held cultural belief in the 19th-century United States that its settlers were destined to expand across North America.
- 7. Belgian Catholic priest and member of the Society of Jesus
- 9. a confrontation in 1859 between the United States and United Kingdom over the British–U.S. border in the San Juan Islands
- 10. He was a British explorer, navigator, cartographer, and captain in the British Royal Navy.
- 14. is a mountain pass in the northwest United States, through the Cascade Range in Washington.
- 15. the encampment of the Lewis and Clark Expedition in the Oregon Country near the mouth of the Columbia River
- 18. they will often float on kelp beds to open tough shells with the aid of a rock.
- 21. was a United States policy that opposed European colonialism in the Americas
- 22. was an international incident and political dispute between the Spanish Empire, the Kingdom of Great Britain, and the fledgling United States of America
- 23. 19th-century fur trading post that was the headquarters of the Hudson's Bay Company's Columbia Department
- 25. was an American explorer, soldier, politician, and public administrator, best known for his role as the leader of the Lewis and Clark Expedition
Down
- 1. of 1843 In what was dubbed "The Great Migration of 1843" or the "Wagon Train of 1843", an estimated 700 to 1,000 emigrants left for Oregon
- 2. was a territorial dispute over the political division of the Pacific Northwest of North America between several nations
- 3. was a conflict between the United States and the Yakama, a Sahaptian-speaking people of the Northwest Plateau
- 5. permitted the entrance of Montana and Washington into the United States of America
- 6. a shortened version of North-Wester
- 8. This explorer was sent to explore the area north of Alta California in response to information that there were colonial Russian settlements there.
- 11. The first Governor of the U.S. State of Washington
- 12. Council was a meeting in the Pacific Northwest between the United States and sovereign tribal nations of the Cayuse, Nez Perce, Umatilla, Walla Walla, and Yakama
- 13. was a British officer of the Royal Navy best known for his 1791–95 expedition, which explored and charted North America's northwestern Pacific Coast regions
- 16. Was a Suquamish and Duwamish chief. A leading figure among his people and has a city named after him
- 17. is a Chinook word meaning by and by, the unofficial state motto of Washington
- 19. was a Canadian retail business group and fur trading business
- 20. was a U. S. Army post in the Washington Territory and was originally called Harney’s depot.
- 24. are a multi ancestral indigenous group whose homeland is in Canada and parts of the United States between the Great Lakes region and the Rocky Mountains.