I do not know. If you are so curious go and count.
3
More then 390 miles of passageways have been mapped.
over 1,000 miles
over 1,000 miles
over 1,000 miles
Over 390 miles.
Over 400 miles of passageways have been mapped and surveyed in Mammoth Cave National Park, making it the world's longest known cave system. Extensive exploration and mapping efforts have been ongoing to document the complex network of underground passages and chambers.
* 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 390 miles
Over 390 miles of passageways have been mapped.
resources which are surveyed and their quality and quantity have been determined for utilisation