Onyx Cave, Show cave in Carroll County, Arkansas, United States.
The limestone formations within Onyx Cave create intricate patterns along the walls and ceilings throughout multiple connected chambers and passageways.
The cave system, discovered in the 1930s during local exploration activities, opened to the public shortly after and became a regional tourist destination.
Regular guided tours through Onyx Cave educate visitors about geological processes and the importance of cave preservation in the Ozark Mountains.
The cave maintains a constant temperature of 57 degrees Fahrenheit throughout the year, requiring visitors to bring light jackets even during summer months.
Natural mineral deposits have created distinctive orange and brown striped patterns on the cave walls, resembling the semi-precious stone that gives the cave its name.
Website: http://onyxcaveeurekasprings.com
GPS coordinates: 36.44121,-93.68425
Latest update: May 29, 2025 22:11
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