Mammoth Cave National Park

A ranger explains Mammoth Cave in the vast passage known as Broadway. Rotunda, one of the cave's largest rooms, is just ahead.
Rolling hills, deep river valleys, and the world's longest known cave system. Mammoth Cave National Park is home to thousands of years of human history and a rich diversity of plant and animal life, earning it the title of UNESCO World Heritage Site and International Biosphere Region.
Map showing location of park.
The side of a white vehicle with the brown, green and white National Park Service Arrowhead Logo and the words "U.S. Park Ranger" written in green.
Mammoth Cave National Park Conducts Sobriety and Safety Checkpoints
Mammoth Cave National Park law enforcement officers will conduct periodic sobriety and safety checkpoints on park roads and riverways throughout the remainder of 2026.
A cable ferry sits at the riverbank with its ramp down, guide cables overhead
Green River Ferry Reopens in Mammoth Cave National Park 
The Green River Ferry in Mammoth Cave National Park will reopen March 5 and resume daily operations from 6 a.m. to 6 p.m. CST.
Mammoth Cave National Park Seeks Public Comment on Proposed Rule for Bicycle and Horse Use
The National Park Service invites public comments on a proposed rule that would amend special regulations for riding bicycles and horses within Mammoth Cave National Park.   
A person is illuminated by red lighting as they look at the night sky through a large telescope.
Experience the Geminids Meteor Shower at Mammoth Cave National Park
Mammoth Cave National Park will host a star party for the Geminids meteor shower on Saturday, Dec. 13 from 5 p.m. to 9 p.m. This free family-friendly event is open to all, from seasoned astronomers to first-time star gazers.
A large group of people stand in a expansive dark cave while holding small candles.
Mammoth Cave National Park at the annual Cave Sing celebration on December 7
Mammoth Cave National Park will host the 46th annual Cave Sing celebration on Sunday, Dec. 7, at 2 p.m. CST. The free holiday event will feature musical performances inside the cave.
A cascade of water pours over a rock ledge. Green foliage is in the background.
Photo by NPS Photo/ Deb Spillman
A long staircase travels down a slope into the dark cave opening.
Photo by NPS Photo/ Thomas DiGiovannangelo
A long cave passage with an oval shape.
Photo by NPS Photo/ Thomas DiGiovannangelo
A small white church building with yellow flowers in the foreground.
Photo by NPS Photo/ Thomas DiGiovannangelo
A wooden boardwalk leads into the forest.
Photo by NPS Photo/ Thomas DiGiovannangelo
A view of a river valley with hills covered in trees. A blue sky with white clouds stands above.
Photo by NPS Photo/ Thomas DiGiovannangelo
A large stacked stone pillar reaches the flat ceiling containing signatures in a cave passage.
Photo by NPS Photo/ Jackie Wheet