Touring the Amazing Mammoth Cave
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The huge passages of Mammoth Cave. |
Longest known cave system in the planet - geolocation. 400+ miles explored and more to explore. I took the historic tour; two miles walk in around two hours. It was pretty cold down there. Native Americans walked into this darkness two thousand years ago. They came for the gypsum - from the Greek "gypsos", meaning plaster. There are remains of mining operations from the times of the Civil War in the cave. Also, a lot of old graffiti in many passages. I stayed in the campground of the national park. No electricity and coin-operated showers. What a nuisance.