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Ruby Falls


Ruby Falls is a waterfall found in the subterranean area of Tennessee’s Lookout Mountain, in Chattanooga, in the United States. This 145 foot underground fall is housed by a cave that was formed with the formation of Lookout Mountain.

This cave was carved into limestone rock and formed by water erosion. This waterfall was first discovered in 1928 by Leo Lambert, a chemist who had a fascination with caves. He was trying to create a new path. Ruby Falls Cave was opened for tourism in 1930 and it was among the firsts to feature electric lights for tourism purposes.


Fast Facts: –

  • The entrance of these falls is at the base of Lookout Mountain. It is the tallest underground waterfall open to public.
  • The Ruby Falls Cave had no natural openings and could not be entered until the 20th century. 
  • The path behind the waterfall was built in 1954.
  • ‘Ruby Falls’ was named after the wife of Leo Lambert, who was called ‘Ruby’.
  • This waterfall was named after Leo Lambert’s wife whose name was also ‘Ruby’.
  • The temperature inside Ruby Falls year-round is a cool 60 degrees Fahrenheit.
  • The men who constructed the pathways at this waterfall were mining engineers from the copper mines of Copperhill, Tennessee.
  • This waterfall is estimated to be around 30 million years old.
  • It formed by an underground stream that is 1120 feet below ground and this waterfall is accessed by an elevator.
  • The water of these falls has a large Magnesium content that makes it a natural laxative.
  • In 1975, an alternative exit was built in case the main elevator ever malfunctions.



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Declan, Tobin. " Fun Facts for Kids about Ruby Falls ." Easy Science for Kids, Oct 2020. Web. 29 Oct 2020. < >.

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Tobin, Declan. (2020). Fun Facts for Kids about Ruby Falls. Easy Science for Kids. Retrieved from

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