🌍 where
Where Is the World's Largest Cave System?
geographynature
Quick Answer
Mammoth Cave in Kentucky, USA, has over 680 km of surveyed passages.
The Full Story
Mammoth Cave, located in central Kentucky, is the world's longest known cave system, with over 680 km (420 miles) of explored passages — and new passages are still being discovered. The limestone cave system was carved by water over millions of years. It was used by Native Americans over 4,000 years ago and became a major tourist attraction in the 1800s. Mammoth Cave National Park was established in 1941 and designated a UNESCO World Heritage Site in 1981.
Key Facts
1.The cave contains at least 200 species, many found nowhere else on Earth.
2.Explorers add about 8–16 km of newly surveyed passages each year.
3.The cave's name refers to its mammoth size, not the extinct animal.
YouTube Angle
Suggested video title for this topic:
"Mammoth Cave — 680 Kilometres of Underground Wonder"