Mammoth Cave National Park

Sinkhole Trail

easy_moderate Geology BuffsShort HikesFamilies
1 mi Distance
Varies Estimated Time
Out & Back Trail Type

What to Expect

The Sinkhole Trail is a short connector route that threads through one of Mammoth Cave's most underappreciated surface features — the karst terrain that hints at the labyrinth below your feet. Over roughly a mile, you'll wind past collapsed sinkholes where the ground has literally swallowed itself, offering a geology lesson you can see without crawling underground. The trail links Heritage Trail to Echo River Springs Trail, so you can build it into a longer loop if you're feeling ambitious. The path rolls gently through hardwood forest with enough ups and downs to keep things interesting without punishing your knees. Note that sections are currently partially closed, so check at the visitor center before heading out. This one is perfect for curious hikers who want to understand why the ground above Mammoth Cave looks the way it does.
Geology BuffsShort HikesFamiliesTrail Connectors

Safety Advisory

Stay on the marked trail and well back from sinkhole edges — the ground near collapse features can be unstable, and a stumble into a sinkhole is no joke.

The trail can be slick after rain since karst terrain drains unpredictably — some sections stay muddy long after the last storm while others dry out fast.

Trail Details

Distance 1 miles round-trip
Difficulty easy_moderate
Estimated Time Varies
Trail Type Out & Back
Pets Not allowed
Season Year-round
Trailhead Sinkhole Trail

Pro Tips

Trail Tip

Stop at the visitor center before starting — the partial closure means the trail configuration changes, and rangers can tell you exactly which sections are open and suggest the best route to still see the most impressive sinkholes.

Trail Tip

Combine this with Heritage Trail and Echo River Springs Trail for a longer outing that covers the best above-ground geology in the park without repeating any ground.

Trail Tip

Look for the sinkholes where you can actually see exposed rock layers and root systems clinging to eroded edges — these spots tell the story of how water carved the cave system hundreds of feet below where you're standing.

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