Across
- 1. myth / pioneer spirit
- 6. movement in the West
- 7. of Guadalupe Hidalgo (1848)
- 8. mining culture
- 9. F. Austin
- 10. O’Sullivan
- 11. and Clark Expedition (1804–1806)
- 15. of Texas (1845)
- 17. Young
- 19. Purchase (1803)
- 22. Jefferson
- 23. War (1846–1848)
- 24. Whitman
- 26. Taylor
- 27. Gold Rush (1848–1855)
Down
- 2. of railroads
- 3. Scott
- 4. gin
- 5. K. Polk
- 9. Anna
- 12. Canal
- 13. Revolution (1835–1836)
- 14. Houston
- 16. Compromise (1820) — sets the tone for expansion debates
- 18. Purchase (1853)
- 20. culture
- 21. or Fight!” slogan
- 25. locomotive
- 28. Trail migration