Inside Mammoth Cave on lantern tour. (61dd1407-82f9-4ddc-8a94-70b0e6b80b5c)
The trail along the Domes and Dripstones cave tour route is often bumpy, pitted, and worn. Thousands of people walk along this (91132e18-de81-411c-825b-81412fb50f8c)
Mammoth cave system and surface
The braincase of a shark-like chondrichthyan from Mammoth Cave, Kentucky. Carboniferous (Mississippian) period. Cropped
Stalactites and stalagmites, made of travertine, can be seen on the Frozen Niagara tour of Mammoth Cave. Travertine, or (38206de9-1dd8-b71b-0bc1-cdfde0e6a271)
Limestone formation in Mammoth Cave, Kentucky, USA.
Carmichael Entrance to Mammoth Cave (e5ba1bb6-d2d8-46b5-a3d0-feda05b386f6)
Completed Paving Stones in Mammoth Cave (e906dab9-6901-4000-a477-e1b394a8204b)
Completed College Heights Stairs (e6d86e39-eaae-4f93-93c2-d0c9c6258e3a)