385 Mammoth Cave, Kentucky, USA

Mammoth Cave National Park is more than just the home to the longest cave system in the world, over 52,000 acres in south central Kentucky.

[@glenndarilek520]

Back when I was a caver (about 50 years ago) cavers found a connection between Mamouth cave and The Flint Ridge cave, making them the longest cave in the world! I forgot how many miles of passageway.

[@RickFidelisReed]

@@glenndarilek520 Amazing 🤩