Fall in Underground' !

Fall in Underground' !

Fall in Underground' !

Nature is blessed with numerous beautiful waterfalls.. But, how about a 'fall in underground' ?That's Ruby Falls - world's only "underground waterfall" ...

A 145-foot high underground waterfall, Ruby Falls is located within Lookout Mountain, near Rock City and Chattanooga, Tennessee, in USA.

The cave which houses Ruby Falls was formed with the formation of Lookout Mountain. About 200 to 240 million years ago (in the Carboniferous period, at the end of the Paleozoic era) the eastern Tennessee area was covered with a shallow sea, the sediments of which eventually formed limestone rock. About 200 million years ago, this area was uplifted and subsequent erosion has created the current topography. The limestone in which the cave is formed is still relatively horizontal, just as it was deposited when it was below sea level.

The Lookout Mountain Caverns, which includes Ruby Falls Cave, is a limestone cave. These caves occur when slightly acidic groundwater enters subterranean streams and eats away at the relatively soft limestone, causing narrow cracks to widen into passages and caves in a process called chemical weathering. The stream which makes up the Falls entered the cave sometime after its formation.

A standing testimony to nature's wonder, these Falls are located at the end of the main passage of Ruby Falls Cave. The stream, about 1120 feet underground, is fed both by rainwater and natural springs. It collects in a pool in the cave floor and then continues through the mountain until finally joining the Tennessee River at the base of Lookout Mountain.

The Steiner family of Chattanooga, Tennessee, which owns the Ruby Falls, made it more spectacular by installing electric lights in the cave perhaps the first commercial caves to be outfitted colourfully'.

This natural phenomenon is a staple ingredient of Chattanooga tourism (USA).

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