Cedar Sink in Mammoth Cave National Park

#9 of 30 sights in Mammoth Cave

Sight · Mammoth Cave National Park

Cedar Sink

Nearly 300 stairs lead into a forested sinkhole.

Photo: National Park Service
Type
Sight
Nearest trail
0.6 mi
Audio stories
5 nearby
  • Trailhead
  • Parking

Hear the audio tour

Cedar Sink

Overview

About Cedar Sink

Why stop

  • Steep sink walls and cave drainage make the geology visible up close
  • Seasonal wildflowers add interest to the forest walk

Heads up

  • The 295 stairs turn a short loop into a substantial climb
Cedar Sink is a large, steep-walled sinkhole in Mammoth Cave National Park, reached by a short forest walk and a long stair descent. It gives you an up-close look at the rock-and-water landscape that continues underground through the cave system. If geology or wildflowers are your thing, keep this stop in the plan; the climb back out is the tradeoff.
Parkwolf’s verdictA sinkhole worth climbing down to

Map

Where it is

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SightCedar Sink37.14873, -86.15454
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Plan your stop

Before you go

Best time to go

Wildflowers are part of the draw here, with different species blooming in succession through spring, summer and fall. The seasonal color softens a visit that is otherwise all about rock and stairs; there isn't just one short bloom window to aim for.

4 active Mammoth Cave alerts

  • ClosureGreen River Ferry suspendedGreen River Ferry service is suspended because low water levels prevent operation. - Service will resume once water levels rise and conditions are safe; a river forecast is available.Official details
  • ClosureAccessible Tour unavailableThe Accessible Tour is unavailable because mechanical issues have taken the cave elevator out of service. - Check back for updates or call the visitor center at (270) 758-2180.Official details
See all 4 alerts
A park ranger sits on a dash-mounted phone, talking, as Parkwolf’s Tour Guide plays “Army Cutworm Moths: A Grizzly Bear Buffet” on Grand Loop Road below Dunraven Pass in Yellowstone
Parkwolf Tour GuideThe highest, rockiest slopes around here are a summer buffet for grizzly bears.

Mammoth Cave Tour Guide

Your drive to Cedar Sink, narrated.

Parkwolf is a GPS audio tour guide for Mammoth Cave National Park. As you drive, it chimes in with what’s ahead: hidden gems, upcoming stops, history, geology, and wildlife, right through your car’s speakers.

Recorded for this place

Cedar Sink
0:00 / 0:25
“Cedar Sink trailhead is coming up, for a walk into a steep-walled limestone hollow. Allow an hour to ninety minutes for the full one point six mile outing, with nearly three hundred steps in total.”

Plays as you drive up to Cedar Sink in the Parkwolf Mammoth Cave Tour Guide.

More stories near here in the app

  • Turnhole Bend Nature Trail
  • Joppa Missionary Baptist Church and Cemetery
  • An Acorn's Autumn Start
  • Rectangles in the Wood
  • 52 audio storiesacross Mammoth Cave’s roads, triggered by GPS as you drive
  • Wildlife heatmapsfor White-tailed Deer, Tricolored Bat, Cave Salamander, and 13 more
  • Works offlinemaps, 47 trails, 42 places, and audio download before you lose signal
  • CarPlay readysimple controls built for the drive
★★★★★
“Fantastic app with many points of information… It’s great to just turn on while you’re driving and it gives you an audio tour of the national Park. We love it!!!!”
JMJamesApp Store review
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4.7 from 8,600+ ratings

Guide

More about Cedar Sink

The stairs are the real commitmentThe signed trail is an approximately one-mile loop.

The signed trail is an approximately one-mile loop. The first three-quarters of a mile rolls through the forest on dirt, then stairs drop about 150 feet into the sink. You climb about the same height back out, with 295 steps total. The park estimates 45 to 60 minutes, and the path at the bottom is flatter and more stable than the stair sections. This is a short walk by distance, but it isn't accessible to everyone. Trailhead parking can fill when visitation is high. Dogs are allowed on leashes no longer than six feet.

A window into the cave landscapeThe limestone under this part of Kentucky began as sediment on a shallow sea floor about 350…

The limestone under this part of Kentucky began as sediment on a shallow sea floor about 350 million years ago. Rainwater slowly dissolves the rock and opens underground drainage routes. Cedar Sink is a karst window into that hidden system, and the bowl likely formed when limestone collapsed above a cave.

Watch for the underground streamWater can emerge from beneath one wall, cross the sink floor and disappear below the opposite…

Water can emerge from beneath one wall, cross the sink floor and disappear below the opposite bluff. The flow varies with rainfall, so you might see a green pool or a short stream, or find the channel dry. Either way, the exposed walls make the shape of the sink easy to read from below.

Photograph the walls from insideFrom inside the sink, frame the limestone wall with some of the floor or stream below it.

From inside the sink, frame the limestone wall with some of the floor or stream below it. That gives the picture a sense of the drop. If the water is low, let the layered cliff carry the frame instead, and stay on the developed trail and away from the sink edge.

Wildlife

Wildlife in Mammoth Cave

All Mammoth Cave wildlife maps

Sighting maps show where each species has been reported across Mammoth Cave. Wildlife moves, so no sighting is guaranteed.

Keep exploring

Near Cedar Sink

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Trails nearby

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Parkwolf’s Mammoth Cave ranking

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Take Parkwolf to Mammoth Cave.

The audio tour guide for the drive, plus offline maps, trails, and wildlife heatmaps for when the signal drops.

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