1. Exploration of the Continent, 1804–1830, 1 of 3

2. Exploration of the Continent, 1804–1830, 2 of 3

3. Exploration of the Continent, 1804–1830. 3 of 3

4. Indian Territory before the Kansas-Nebraska Act of 1854

5. The Overland Trails, 1840

6. Overland Emigration to Oregon, California, and Utah, 1840–1860

7. Texas: From Mexican Province to U.S. State, 1 of 3

8. Texas: From Mexican Province to U.S. State, 2 of 3

9. Texas: From Mexican Province to U.S. State, 3 of 3

10. The Mexican-American War, 1846–1848

11. Territory Added, 1845–1853

12. Where the Forty-Niners Came From

13. California in the Gold Rush