Longest cave system
The current longest cave system record is 420 miles, held by Mammoth Cave System, set on September 11, 2021.
420
miles
Mammoth Cave System
- Holder
- Mammoth Cave System
- Record
- 420 miles
- Metric
- 675.9 km
- Exact figure
- About 676 km (420 miles) surveyed
- Location
- Kentucky, United States
- Date set
- September 11, 2021
- Recognized by
- Cave Research Foundation
Sources
- nps.gov Mammoth cave national park adds new miles to cave length
- livescience.com Mammoth cave system kentucky record
Spotted an error or a newer record? Use the form below with a source link.
Spotted something out of date?
More caves, canyons and glaciers records
-
Caves, Canyons and Glaciers 2.12 million sq mi Largest tropical rainforest Amazon rainforest · South America (mostly Brazil) See record ↗ -
Caves, Canyons and Glaciers 4,350 miles Longest continental mountain range Andes · South America See record ↗ -
Caves, Canyons and Glaciers 19,715 ft Deepest canyon on land Yarlung Tsangpo Grand Canyon · Tibet, China See record ↗ -
Caves, Canyons and Glaciers 14,764 ft Highest and largest plateau Tibetan Plateau · Tibet, China See record ↗