Alabaster Caverns State Park in Oklahoma has an impressive 'world's largest' structure and it is something you need to ...

Gypsum caves, while rare, are not unheard of, even in the United States. For example, South Dakota's dazzling Jewel Cave National Monument is rich in gypsum crystals. But Alabaster Caverns stands ...

These massive selenite (gypsum) crystals, some measuring as long as 11 meters and weighing as much as 55 tons, still amaze scientists and adventurers alike. The cave's record-setting conditions ...

Mysteriously beautiful, White Sands National Park is home to the world's largest gypsum dune field. Spread across over 275 ...

B ack in March 2013, an unusual and tragic story emerged about a man who was swallowed by a sinkhole in Florida. No trace of ...

With warmer weather and spring break on the horizon, it’s the perfect time to pack up and hit the road. From national parks to historic sites, there are plenty of ...

Vast wave-like dunes of glistening gypsum sand engulf 275 square miles ... of year is Carlsbad Caverns National Park. More than 119 caves of all shapes and sizes make up this stunning park ...

Collapse dolines occur as consequences of the gradual collapse of a cave passage at depth ... where sandstone and limestone overlie gypsum. Others may be buried by more recent deposits.

Find Gypsum Cave stock video, 4K footage, and other HD footage from iStock. Get higher quality Gypsum Cave content, for less—All of our 4K video clips are the same price as HD. Video Back Videos home ...

Sinkholes that result from the removal of a soluble rock such as chalk, gypsum or limestone are called ... by sinkholes and underground caves. Building works, changes in water table level and ...