The mountains

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Across
  1. 1. used to cross from one place to another
  2. 4. full of shadows
  3. 5. very tired
  4. 7. a deep narrow valley
  5. 9. a big rock
Down
  1. 2. not believable
  2. 3. very big
  3. 6. going a long way down
  4. 8. many trees can be found here