Search results
Results from the WOW.Com Content Network
The following is a list of sinkholes, blue holes, dolines, crown holes, cenotes, and pit caves. A sinkhole is a depression or hole in the ground caused by some form of collapse of the surface layer. Some are caused by karst processes—for example, the chemical dissolution of carbonate rocks [1] or suffosion processes. [2]
This list of deepest caves includes the deepest known natural caves according to maximum surveyed depth as of 2024. The depth value is measured from the highest to the lowest accessible cave point. The depth value is measured from the highest to the lowest accessible cave point.
Hranice Abyss. Hranice Abyss (Czech: Hranická propast) is the deepest flooded pit cave in the world. It is a karst sinkhole near the town of Hranice, Czech Republic.The greatest confirmed depth is 519.5 m (1,704 ft), of which 450 m (1,476 ft) is underwater.
Sistema Huautla is the deepest cave in the Western Hemisphere and the ninth deepest cave in the world, tied in depth with the cave Hirlatzhöhle of Austria; it is listed as the twenty-ninth longest at about 62.2 miles of surveyed passages compared to Mammoth Cave in Kentucky, USA, the longest cave system in the world at 420+ miles. [2]
This list of deepest mines includes operational and non-operational mines that are at least 2,212 m (7,257 ft), which is the depth of Veryovkina Cave, the deepest known natural cave in the world. The depth measurements in this list represent the difference in elevation from the entrance of the mine to the deepest excavated point.
The deepest blue hole in the world is the Taam Ja' Blue Hole in Chetumal Bay, which was found to have a depth of more than 420 metres (1,380 ft) in 2024. [ 3 ] The second deepest is the Dragon Hole , or Longdong, in the South China Sea at 300.89 metres (987 ft) deep, [ 4 ] while the third deepest blue hole in the world is Dean's Blue Hole at ...
At a total depth of 339 meters (1,112 ft), it is one of the deepest known water-filled sinkholes in the world. [1] Using an autonomous robot, the underwater portion of Zacatón has been measured to be 319 meters (1,047 ft) deep (a 20-meter (66 ft) difference between the rim of cliff and surface of water adds to the total depth). [2]
Buckskin Gulch, Utah—possibly the longest, deepest slot canyon in the world at over 13 mi (21 km); a tributary of the Paria River; Cane Creek Canyon, Alabama; Canyon de Chelly, Arizona; Canyonlands National Park, canyons of the Colorado River and its main tributary the Green River, Utah