Viddler

Beneath the Black Hills of South Dakota is the intriguing underground world of Jewel Cave. With 141 miles of explored passageways, Jewel Cave ranks as the second longest cave in the world. The cave was discovered at the turn of the century by...

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Beneath the Black Hills of South Dakota is the intriguing underground world of Jewel Cave. With 141 miles of explored passageways, Jewel Cave ranks as the second longest cave in the world. The cave was discovered at the turn of the century by brothers passing through Hell Canyon. On February 7, 1908, President Theodore Roosevelt declared the site a national monument.
At this time only a few of the caves wonders had been discovered. Less than one mile of passage was known. The primary attractions were chambers lined with jewel-like crystals. Exploration continues to reveal hidden miles of passages beneath the Black Hills.

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