The Final Puzzle

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Across
  1. 3. One of the main resources in the West
  2. 5. This amendment made slavery illegal
  3. 7. Recently ended in the United States
  4. 8. These people were put into reservations
  5. 9. Food that was high in demand
Down
  1. 1. Connects the East and the West Coast
  2. 2. Messenger system
  3. 4. War that caused the Frontier
  4. 6. _____Kingdom