limestone cave
Underground karst hollow
A limestone cave is a natural underground chamber formed when slightly acidic water dissolves limestone rock over thousands or millions of years.
Most caves open to tourists are limestone caves, featuring stalactites, stalagmites, and other formations created by mineral-rich water dripping through the stone: We toured a limestone cave in Kentucky.
- flowstoneCalcite sheet from seepage
- stalactiteHanging cave mineral deposit
- cavernLarge natural underground chamber
- grottoSmall scenic cavern
- karstEroded soluble rock terrain
travertine · mineral deposits · dissolution · bat colony · archaeological site · aragonite · folklore legends · natural wonder · guided tour · sacred rituals · pool · chamber · hidden passage · echo chamber · formations · spelunking · bats · crystal
- cavescavern, caves, caverns, grotto, grottos
- natural wondersnorthern lights, aurora borealis, auroras, rainbows, Great Barrier Reef
- undergroundunderground, subterranean, tunnels, tunnel, underground passages
- underground spacesbasement, cellar, cavern, tunnel, mine
- cave dwellingscliff dwelling, rock shelter, dugout, Mesa Verde, pueblo
- geological formationsmineral deposit, ore deposit, coal deposit, oil deposit, gold deposit
limestone cavemountain peak
Topmost point of elevation
open plain · open sky · mesa · plateau · butte
limestone cavemine shaft
Vertical tunnel for extraction
subway tunnel · underground bunker · basement · bomb shelter · catacombs