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“prehistoric cave with Ice-Age skeletons”
Inner Space Cavern is a karst cave located in Georgetown, Texas. The cave was discovered by the Texas Highway Department in 1963 during the construction of Interstate 35. There were several large openings to the caverns during the Ice Age, and several skeletons of prehistoric Ice-Age animals have been found in the caverns; many were trapped in the cave after they fell through the opening, unable to escape, and others drowned in thick, quicksand-like mud at the bottom of watering holes. Some filled-in sinkholes have been found, including the prehistoric entrance to the caverns. 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 passing through Edwards limestone. The caverns are estimated to be 90–100 million years old but were only open to the surface since the late Pleistocene period 20,000–45,000 years ago, evidenced by finds of mammoth and saber-toothed cat bones. All natural entrances closed approximately 14,000 years ago. The cave was opened to the public in 1966. Three different levels of tours are available, ranging from a basic guided tour to guided spelunking, with over 1.2 miles of passage being open to the public. However, non-public passages are well-guarded and independent exploration is not allowed. Apart from the main entrance, which was created by dynamite blasts, one of the original 18-inch diameter drilled holes serves as an emergency entryway/exit and a means for ventilating the cave.
This place was awesome! We did the Adventure Tour and I was very impressed with our tour guides knowledge level as she seemed really young. Each room was cooler than the next and it was also... Read more
They have the safety down, the knowledgeable and funny guides, and the caverns are well kept. All rules that kept us from enjoying it more (touching, eating, drinking, etc) were explained to the... Read more
If you know me, you'll know that I am a huge sucker for geology, rocks, and even a rockhound. What better way to spend a Sunday afternoon, instead of being cooped up inside the house watching... Read more
Inner Space Cavern
Hours
- Sun, Sat: 10:00 am - 5:00 pm
- Mon - Fri: 9:00 am - 4:00 pm
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Wheelchair Accessible
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Credit Cards Accepted
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