A great deal of Kentucky is made up of Karst topography better known as Cave area. At one time the area was under water. The bones, shells and other matter sank to the bottom to form sediment. As the areas rose above sea level that sediment hardened and became what we call Limestone. Water worked it's way through the cracks in the limestone and created one of the Seven natural Wonders of The World…Mammoth Cave. It is the longest cave system in the world. Most of Mammoth Cave is dry and void of Stalagmites and Stalactites because a large sandstone cap covers most of the cave. One area where the cap does not exist is the area above the Frozen Niagara. It is a must see if you are going to Mammoth Cave NP. One tip: buy your tickets for the frozen Niagara in advance online by visiting their website: http://www.nps.gov/maca

You will also find plenty to do above ground as well. Hiking, Biking, Fishing, Camping and much more. If you live in Kentucky and have not visited this place you are really missing out.