- Inner Space Cavern
Inner Space Cavern is a
Karst cave located inGeorgetown, Texas . The cave was discovered by the Texas Highway Department in1963 during the construction ofInterstate 35 . There were no known openings to the cave before this time; however, some filled-insinkhole s have been found. Several miles of cave passage have been surveyed, with many sections of the cave remaining unexplored, due to filled-in areas blocking passage.The caverns were carved by
water throughlimestone . The caverns are estimated to be 90-100 million years old but only had an opening to the surface since the latePleistocene period 20-45,000 years ago, evidenced by finds ofmammoth and sabre-toothed catbone s.The cave was opened to the public in
1966 . Visitors enter via a cable car which is lowered into the cave. Tours are available of this easily accessed cavern, with 1.2 miles of passage being open to the public. However, non-public passages are well-guarded and independent exploration is not allowed.Inner Space Caverns is the first cave to place felony charges on a visitor for damaging the cave's formations.
External links
* [http://www.innerspace.com/ Inner Space Cavern] official website
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* [http://www.flickr.com/photos/alexmuse/sets/72157600269786975/ Cavern Photos] by Alexander Muse
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