I suggest you may be able to find out from or via the National Speleological Society web-site or its other publications. Expect thousands!
The UK hasthousands of recorded caves altogether, listed across cavers' regional guide-books, but I don't know if US cavers have similar books readily available.
No, Long Island is not the largest island in the US. The largest island in the US is the Big Island of Hawaii.
Cavern, grotto, the French word for (Cave) is Grotte.
California contains the largest number of Asians in the US.
The largest deposits of sphalerite is found in the US.
Pittsburgh, Pennsylvania is home to the largest natural gas field in the US, known as the Marcellus Shale field.
what is interesting about Carlsbad Cavern is that it is the largest room out of all natural caves
Carlsbad Caverns- it is the largest cavern in the world, and is located in southeast New Mexico.
I'll explore this cavern when I have a flashlight.
Cavern is a noun.
The suffix for cavern is -ous, as in cavernous.
Space Cavern was created in 1980.
Space Cavern happened in 2600.
Cavern of the Fear was created in 2002.
The Cavern Club was created in 1957.
Cavern Creatures was created in 1983.
Cavern Creatures happened in 1983.
The US is the largest importer China is the largest exporter then Germany then the US