the transcontinental railroad

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Across
  1. 4. What it is
  2. 5. where the west started
  3. 7. marks the end of the railroad
  4. 8. opposite of west
Down
  1. 1. where the east started
  2. 2. is usually on the end of a train
  3. 3. like hotwheels
  4. 6. Iowaosite of east