SCI & TECH● LOW2h ago · Sep 16, 2026, 10:33 PM
In 1999, scientists poured fluorescent dye into Kentucky sinkholes to map Mammoth Cave's hidden hydraulic system; they discovered that approximately 60% of its aquifer extended beyond the park's boundaries
Clarín · north america
It is the longest cave system in the world, stretching over 400 miles. It has been protected since 1941 by a national park in Kentucky.
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