Mammoth cave began forming about 10 million years ago when an ancient sea covering the central United States disappeared and erosional forces let cracks and holes expose the limestone that was beneath the sea. Rainwater began to get underground and hallowed out the cave.

Mammoth Cave, located in Kentucky's Mammoth Cave National Park in the United States.

In Kentucky.

There's only one Grotte Lascaux - the painted cave - plus of course the artificial copy that we'd see as tourists. It's by no means the only cave in the region thoogh.

Odd question! All its features developed: the cave's passages and chambers, its speleothems, its sediment deposits. If any of the system's passages still carry streams, they are known as "active" and are still forming.

The height and width of Mammoth Cave varies depending on where you happen to be in the cave. Its explored length is about 400 miles (over 600 km), and spelunkers report that there are still many more miles to discover.

Of course the secret to that answer is very dependent on where you are at when you decide to make that journey. If for example you were in Chicago, Illinois a simple answer would be to head south for about 391 miles and you will then be very close to Mammoth Cave. The mode of transportation of course could vary and that choice would be up to the individual. Walking is a pleasant way to pass some time, but driving might be faster if you are pressed for time.

It is partly located there. The cave is so big it streches for miles.

Stalactites refers to the formations that grow downward from the top of the cave.

• Mammoth Cave is the world's longest known cave. It is longer than the world's second and third caves joined together, with about 100 miles to spare.
• Mammoth Cave has about 367 miles of explored cave passages, which equates to about 590 km.
• It is one of North America's oldest tourist attractions.
• Tours have been operating at Mammoth Cave since 1816.
• Native Americans have left behind perfectly preserved relics of their time, including slippers, cane torches and gourds. Even mummified bodies have been found, as the dry area of some parts of Mammoth cave is perfectly suited to preserving organic material.
• Native Americans were believed to have collected minerals from the cave system some 2000-4000 years ago.
• The Green and Nolin Rivers flow through the Mammoth Cave National Park.
• Fish that live in the rivers do not have eyes, because of e darkness of the cave.
• Mammoth Cave is 379 feet (118 m) deep
• There used to be a tuberculosis ward in Mammoth Cave, set up by a doctor who believed the dry air would help patients. Unfortunately, the dry air did not counter the cool temperatures or the problems of smoke from heating and cooking, and the patients died. The doctor himself died of TB a few years after the ward was closed.

The park is named after a cave that's pretty big -- so big that some consider its size to be "mammoth."

Mammoth Cave is located in Cave City, Kentucky.

The Green and Nolin Rivers run through Mammoth cave National Park.

It is about 10 miles north of Hot Springs South Dakota in the southwestern corner of the state,

Be awed and amazed.

There are trails to explore. There are a variety of guided tours and they can earn the Jr. Ranger Badge while in the park. It is one of our favorite National Parks.

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.

Because it is the largest cave in the world.

Mammoth Cave was used between 2000 and 4000 years ago by Native Americans. However, the first European discovery of Mammoth Cave is believed to have been in 1797, by Robert Houchins, who was apparently pursuing an injured bear he was hunting.

The Tanoby Ruins is a very special place. You can catch Unown there! But, in order to make Unown apear there, you must unlock them. To do this, go to Sevault Canyon on Seven Ilsand. Find the Tanoby Key there, and solve the rock puzzle with the HM Strength. Once you do, there will be a small earthquake. Now, go to the Tanoby Ruins, choose a ruin, and Unown will apear like wild Pokemon! And the best part is, you can have as many as you want!

Doubtfully. Mammoth cave was made from water carving paths and fissures through the limestone rock and soil. See the related link for more information.

It is in central Kentucky near Brownsville.