Over 390 miles
More then 390 miles of passageways have been mapped.
It contains over 390 miles of mapped passageways.
Over 390 miles.
Over 390 miles of passageways have been mapped.
With more than 350 miles of surveyed passageways, Mammoth Cave is at least 3 times longer than any cave known. How long might it be? Geologists estimate that there could be as many as 600 miles of yet undiscovered passageways.
* Stalactites grow from the top down. * Stalagmites grow from the bottom up. * When they join you have a column. The other forms of speleothems include: * Flowstone * Dripstone * Anthodites * Helicites * Chandeliers * Straws and * Draperies Cave popcorn, snotties and cave pearls also exist and 10 mm cave pearls and larger are special finds for speleologists,
over 1,000 miles
over 1,000 miles
More than two hundred miles. Well over 300, with Flint Ridge Cave to which it connects - the combined system is the world's longest known.
over 1,000 miles
It has just over 151.34 miles (243.56 km) of mapped passageways.
Mammoth Cave has at least 390 miles of known passageways.