Kentucky.
Mammoth Cave in Kentucky is the world's longest known cave system. The Jewel Cave system near Custer, South Dakota is ranked as the second longest known cave system.
Mammoth Cave
Mammoth Cave, located in Kentucky's Mammoth Cave National Park in the United States.
The state with the largest cave system in the United States is Kentucky. The Mammoth Cave National Park in Kentucky is home to the world's longest known cave system, with over 400 miles of explored passageways.
mammoth cave if you researched how big mammoth cave is well i don't know how long but it is the longest in the world
The Mammoth Cave system in Kentucky, USA, is the longest known cave system in the world, with over 400 miles of explored passageways.
if you mean the longest, it's the Flint Ridge Cave / Mammoth Cave system (Kentucky) - also the world's longest known cave - with well over 350 miles of surveyed passages.
Mammoth Cave is located in the state of Kentucky, in the United States. It is known as the world's longest cave system with over 400 miles of explored passageways.
Kentucky. the roaring sea horse that lives in a kelp forest cave system, china ( also known as the sao- faung system) What is the world's longest cave? Respuesta: Mammoth Cave System in USA ( Kentucky) with 370.000 lenght miles
Kentucky. the roaring sea horse that lives in a kelp forest cave system, china ( also known as the sao- faung system) What is the world's longest cave? Respuesta: Mammoth Cave System in USA ( Kentucky) with 370.000 lenght miles
If you mean "longest" then it's Kentucky. where 360+miles of surveyed passages make the combined Flint Ridge cave / Mammoth Cave system make it in fact the world's longest.