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Mine shaft lets in a bit of daylight and greenery.

Mine shaft lets in a bit of daylight and greenery. previous next

  • thumbnail: Mine shaft lets in a bit of daylight and greenery.
  • thumbnail: Solidity of the rock formation is clear from this picture.
  • thumbnail: The mine tunnel has to be lit with artificial light.
  • thumbnail: Mine tunnels are dark, but stable places.
  • thumbnail: Underground water supply is abundant here.
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