A magma chamber.
It is a massive magma chamber to what has been called a supervolcano that lies beneath much of the park.
The source of heat for all of Yellowstone's thermal features such as geysers and hot springs is the Yellowstone Caldera, which is a large volcanic crater located beneath the park. The caldera is fueled by a magma chamber located deep underground, providing the heat necessary for these features to exist.
A magma chamber.
An underground cavern is a large cave or chamber typically found beneath the Earth's surface. These formations are often created through geological processes such as erosion, dissolution of rock, or volcanic activity. Underground caverns can contain unique ecosystems and geological features.
two huge mountains called chaka cavern
A cavern is a large cave. Generally a cave is considered to be a cavern if it is large and extends a long way underground. Caverns often have other geological features within them such as stalactites or stalagmites. The exploration of caves and caverns is known as speleology.
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.
I'll explore this cavern when I have a flashlight.
Cavern is a noun.
The suffix for cavern is -ous, as in cavernous.
Cavern of the Fear was created in 2002.
The Cavern Club was created in 1957.