Higher Forms

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Across
  1. 4. open area of hills
  2. 5. steep-face
  3. 9. eroded layers of rock
  4. 10. Isolated hill
  5. 11. steep edge
  6. 12. rounded top
Down
  1. 1. sticking up rock
  2. 2. easy to climb
  3. 3. high open land
  4. 6. down below
  5. 7. between the mountains
  6. 8. sand