it is 400 km it is right trust me i should know.
The longest cave system is Mammoth Cave in Kentucky, it's length is 367 miles (591 kilometers).
Mammoth Cave in Kentucky.
Mammoth Cave, located in Kentucky's Mammoth Cave National Park in the United States.
Kentucky.
Mammoth Cave in Kentucky.
Mammoth Cave in Kentucky.
Kentucky contains Mammoth Cave National Park which is the world's longest cave system. (Visit it. IT IS AWESOME.)
Mammoth Cave is the longest known cave system in the world. Therefore, yes, it is indeed the longest cave system explored by man in central Kentuky, in Kentucky, in the United States, in North America, in the Western and Northern Hemispheres and on Planet Earth It is also the longest cave system known to have ever been explored by man in the Universe. If the question was intended to find out where Mammoth Cave is located, then yes it is located in cental Kentucky near Bowling Green.
mammoth cave KY is a cave in Kentucky that is really, really, really long i mean miles long
Mammoth Cave is the largest cave system in all of Kentucky.
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