Large rock walls with a gap between. Title: Annetta's Dome at Mammoth Cave. Text on bottom: Views of Mammoth Cave and Vicinity. Text on top: 'These are pronounced the very best specimens of subterranean photography yet produced.' - Scientific...
Mineral formation of gypsum inside Mammoth Cave. Mammoth Cave is the longest cave system in the world and located within Mammoth Cave National Park in Mammoth Cave, Kentucky.
Large rocks worn down and reshaped by large forces of water inside Mammoth Cave. Mammoth Cave is the longest cave system in the world and located within Mammoth Cave National Park in Mammoth Cave, Kentucky.