Across
- 4. The mission at which the Texan revolutionaries made a stand against the Mexican Army in their fight for independence
- 6. Exploration of the Northwest, covering Idaho, Washington, Oregon, California, Nevada, and Utah
- 9. The railroad built to connect the Eastern and Western coasts of the United States
- 10. An expedition to explore much of the territories of Mexico through Kansas, Colorado, New Mexico and Texas
- 12. The war fought between the United States and Mexico that resulted in much of Mexico's territory becoming part of the U.S.
- 14. The small chunk of land later purchased from Mexico by the U.S.
- 15. The offshoot from the Oregon Trail used by the Mormons to settle Salt Lake City, Utah
- 16. The 300-mile trail running from Philadelphia, PA to Lexington, KY that breached the Appalachian Mountains for the first time
- 17. Rugged individuals who lived in the wilderness and worked as traders, trappers, and guides
- 18. A burst of settlement in California after gold was discovered in 1848
- 19. The military settlements established by the first Spanish settlers across the Southwest region of North America
- 20. A decisive military engagement between Texan revolutionaries and the Mexican Army which resulted in the establishment of the Republic of Texas
- 21. The civilian settlements established by the first Spanish settlers across the Southwest region of North America
- 22. An invention that allowed for rapid electric communication using tapping patterns like Morse Code
- 23. The name given to the territory gained by the U.S. from the Mexican-American War
Down
- 1. The path running North-South through Texas, Oklahoma and Kansas
- 2. The most well-known route for settlers looking to reach the Northwest region
- 3. The religious settlements established by the first Spanish settlers across the Southwest region of North America
- 5. A transnational mail service running from Missouri to California in the 1860s
- 7. The path taken by the Corps of Discovery to find a water route to the Pacific
- 8. The path taken by settlers who got trapped in the Sierra Nevada Mountains and had to resort to cannibalism to survive
- 11. The treaty that ended the Mexican-American War
- 13. A separation from the Oregon Trail to reach New Mexico from the North
