Onyx Cave

Onyx Cave denotes several caves in the United States:

• Onyx Cave (Arizona) , National Natural Landmark
• Onyx Cave (Arkansas) , the oldest visitable cave in Arkansas
• Onyx Cave, Missouri , listed on the NRHP
• Great Onyx Cave , in Mammoth Cave National Park, Kentucky
  • Great Onyx Cave Entrance , listed on the NRHP
• Crystal Onyx Cave , Kentucky

This is a disambiguation page for differentiating between several terms identified with the same word.