Westward Expansion

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Across
  1. 3. towns that serviced new mines and emptied when the mines closed
  2. 4. a popular route for cattle drives from San Antonio to Abilene,
  3. 8. mail delivery system in which messengers transported mail on
Down
  1. 1. movement of cattle herds to market or new grazing lands
  2. 2. an area that is undeveloped
  3. 4. the name given to the Great Plains during the years when they
  4. 5. great herds of cattle
  5. 6. across the country
  6. 7. name given to 1859 gold and silver discovery in western