SizerooHow long is Mammoth Cave's mapped length?
426 milesAbout 686 km · Land-sized
Over 420 miles (680 km) has been mapped so far, the longest known cave system on Earth.
A red kangaroo would need about 86,000 hops (26 ft, or 8 m, each) to cover it.
🦇426 miles
🌋the Yellowstone Caldera
To scale: Mammoth Cave is about 9.5× bigger than the Yellowstone Caldera.
Things about the same size
- How long is Lake Michigan?307 miles
- How long is the Hudson River?315 miles
- How far is Los Angeles from San Francisco in a straight line?347 miles
- How long is the Erie Canal?363 miles
- How long is the Blue Ridge Parkway?469 miles
- How long is the Indianapolis 500?500 miles
- How long was the longest lightning flash ever recorded?515 miles
- How wide is Ceres, the biggest object in the asteroid belt?583 miles
Many real things vary in size, so we use a typical or official figure. Spotted a mistake? Email [email protected].