A (usually) natural, large, void in the rock - and they are always underground by definition so the adjective is tautologous.
The word "subterranean" is superfluous by definition, but essentially a cavern is a large void in the rock. Normally the term is applied a bit loosely to refer to particularly long, natural caves with many large chambers and passages; but is sometimes used to describe very large, man-made, underground chambers.
Peak Cavern was formed by the gradual erosion of the limestone rock by underground streams over millions of years. The dissolving of the limestone created a network of passages and chambers that make up the cave system we see today.
Cavern formation is typically caused by the dissolution of soluble rocks (such as limestone) by water, usually through a process called chemical weathering. Over time, the water erodes and dissolves the rock, creating large underground cavities known as caverns.
Castleton, Derbyshire Engalnd? I ask because I don't know if there is a Castleton in a caving area in the USA. Sticking to Derbyshire: Peak Cavern, Giant's Hole, Oxlow Cavern, Nettle Pot... That's 4 natural caves in or near Castleton; then there are assorted former mines like Knotlow, Old Tor, Blue John, etc. Actually Knotlow mine drops into natural passages. If it's show-caves/ mines you want your best source of information may be that designed fortourists. Peak and Blue John are partially show cave and mine respectively.
Luray Caverns is located in Luray, Virginia, USA. It is a popular tourist attraction known for its stunning underground rock formations, such as stalactites and stalagmites.
A cavern is an underground chamber formed by erosion
its at the place where there is a long dive spot
Two features formed by underground weathering are caves and sinkholes. Caves are formed by the dissolution of limestone or other soluble rocks, creating underground chambers and passages. Sinkholes are depressions in the ground that form when the roof of an underground cavern collapses.
in the underground cavern near Poseidon's statue
team rocket
A cave or cavern.
people eat the limestone and live in the underground cavern's :) ... actual lol
lv 2 underground I'll try to get more
Souterrain Souterrain
Artificial Intelligence
If you had a large enough cavern I suppose this could be done
people eat the limestone and live in the underground cavern's :) ... actual lol