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The Tunnel Challenge
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Through Mountain

Through Mountain
Cutting through a mountain is hard work! Choose a tool or technique below, and try to figure out the best way to chew a mile-long railway tunnel through this mountain!

Hint: The tunnel score will help you compare the different methods. A score of 100 is the best solution for this location.


fire-setting Hand Tools Gunpowder
Fire-Setting Hand Tools Explosives
Compressed Air Drill Tunnel Boring Machine Tunnel Shield
Compressed
Air Drill
Tunnel Boring Machine Tunnel
Shield

Choose a location


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