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founder:
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Dragontree
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date created:
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06/23/2012
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no. of members:
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4
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description/mission statement:
Mankind has been endeavouring to discover methods of crossing natural obstructions for centuries. We have many types of bridges with various construction designs but when we can not build a bridge we often tunnel through the earth itself, or even under water. There are many tunnels, all vital to our infrastructure and they display some of the most marvellous feats of engineering.
This category seeks canal tunnels which are safely accessible and are of some interest.
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open enrollment: OFF
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This group manages the following:
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