Just three years ago, a group of Idaho men traveled to an unnamed Western state and in an unnamed range of rugged mountains, hiked up a steep trail. At the top, they unraveled climbing ropes, stepped ...
Gabriel C Rau has received funding from the NSW Government (Australia), the European Commission, the German Research Foundation (DFG) and the German federal government. Cave explorers have traversed ...
Mammoth Cave, the world's longest known cave system, stretches 426 miles under Kentucky. The cave's limestone began forming 330 million years ago when the region was submerged under an ocean. Visitors ...
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