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Underground Passages and Tunnel Travels is a medium crossword puzzle with 16 clues covering . Play it online for free below, or create your own crossword with our free crossword maker.

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Underground Passages and Tunnel Travels
Moderate difficulty suitable for most players
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Across
  • 1. Vertical or inclined passage used in mining operations
  • 2. Road or path passing beneath another
  • 4. Underground conduit for waste and storm water
  • 5. Urban underground train system common in cities
  • 7. Ancient underground burial chambers
  • 9. Horizontal passageway in a mine
  • 11. A passage dug through or under earth or rock
  • 12. Underground tunnel dug by animals
  • 14. Horizontal entrance to a mine
Down
  • 3. Natural hollow space in the earth often explored by spelunkers
  • 6. Tube or passage that conveys air or fluids underground
  • 8. Existing or situated below the earth's surface
  • 10. Electric rail vehicle that can run underground in some cities
  • 13. Steep slope often encountered in underground mining paths
  • 15. Process of drilling tunnels underground
  • 16. Rapid transit railway system usually underground
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