Chain Crosswords Long Geography Hard — Set 6

Hard 15×15 Set 6
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Across
  1. 1. A word related to geography
  2. 3. Mountain that erupts lava
  3. 5. A word related to geography
  4. 8. Deep narrow gorge
  5. 11. Flat elevated area of land
  6. 12. A word related to geography
Down
  1. 2. A word related to geography
  2. 4. Deep gorge carved by a river
  3. 6. Land completely surrounded by water
  4. 7. A word related to geography
  5. 9. Narrow strip connecting two landmasses
  6. 10. Physical features of an area