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After $3.5M Spent, California Ditches Mine Tunnel Tourism Project
![Mine tunnel [bc0147] | the mine museum is underground, right… | Flickr](https://live.staticflickr.com/3162/2825661031_5dbf05b61c_b.jpg "Mine tunnel [bc0147] | the mine museum is underground, right… | Flickr")
Mine tunnel [bc0147] | the mine museum is underground, right… | Flickr
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Walhalla Long Tunnel Extended Gold Mine, Tour, Gippsland, Victoria, Australia
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Old abandoned gold ore mine tunnel with wood timbering in Ural Stock Photo | Adobe Stock
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Tunneling & Mining
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