The region's rock art, which amounts to thousands of paintings in limestone caves
, has been studied since 1994 when the images were first spotted by the French explorer Luc-Henri Fage.
Our tour guide Jonathan also led us into the underground network of the Quadirikiri limestone cave
, kicking up dust to create a stunning visual image as sunlight broke through gaps in the rocks above.
This is a small, tubular limestone cave
formed during the Jurassic-Cretaceous era about 60 million years ago.
Hidden underneath the hilly grasslands studded with ocotillos and mesquite trees in southeastern Arizona lies a world shrouded in perpetual darkness: Kartchner Caverns, a limestone cave
system renowned for its untouched formations, sculpted over millennia by groundwater dissolving the bedrock and carving out underground rooms and passages.
Most of the caves where these animals persist are lava tubes, except for a single limestone cave
that sits on top of the same lava flow comprising the other caves.
On one of the steep cliffs of this river is limestone cave
that goes by the name Baengnyong.
Most hydrologist agree that base level hydrology is the primary control of limestone cave
development and lithologic control is secondary.
One of the world's most extensive limestone cave
systems the Legends, Mysteries and Ghost Tour is the popular way to see them.
The limestone cave
has been closed to the public but after safety checks it has been opened for the three-night event from last night, with archive images of Roker's history accompanied by a sound track projected on to its walls.
Scientists found the relics at the Chonbadae limestone cave
in Hwanghae-bukdo province of North Hwanghae quoting Korean Central News Agency (KCNA) a foreign television channel reported.
Police began moving in from dawn to break up a crowd of around 5,000 who had started gathering in the Batu Caves, a sacred Hindu temple set amid a limestone cave
just outside the Kuala Lumpur city center as they attempted to march towards the British Embassy.
* The deepest limestone cave
in the United States is Lechuguilla Cave in Carlsbad, New Mexico.