A Well Kept Secret

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Across
  1. 2. A young cowboy who found an ancient treasure
  2. 3. Very serious or important
  3. 7. Scientists who study people who lived long ago
  4. 8. Any object made by humans, especially one that's
  5. 10. The pointy tip of an arrow made of metal or stone
  6. 12. Places to store grain
Down
  1. 1. The act or process of digging out
  2. 4. A sudden, surprise attack
  3. 5. The Fremont People disappeared, or left their homes about 800 years ago
  4. 6. Keep something safe and in good condition
  5. 9. To solve and explain a mystery
  6. 11. Hunter-gathereers and farmers who lived in Utah long ago