Mammoth Cave, part of the Green River valley and hilly country of south central Kentucky, is the world's longest known cave system, with more than 390 miles explored. Early guide Stephen Bishop called the cave a "grand, gloomy and peculiar place," but its vast chambers and complex labyrinths have earned its name - Mammoth.
Paste this code where you want the video to appear.
TV Schedule Filters
Location Help
KET provides PBS national programming for all viewers in our broadcast areas. We use your web browser to confirm your location.
If you're a KET donor, you may watch this content from anywhere in the United States.
We provide online video of PBS national programming for KET viewers. Please allow KET to access your web browser's location to watch this video.
Explore KET
Ad Blocker Detected
It appears your browser is using an ad blocker. In addition to blocking ads, this software affects our ability to properly detect your location, which we must do before allowing access to video content. Please add KET.org to your safe list or disable your ad blocker for the best experience.