Onyx Cave

United States of America

Onyx Cave is a solutional cave system with about 0.5 miles (0.8 km) of passages formed in Permian limestone in the Santa Rita Mountains of Arizona. It is part of the Coronado National Forest. It was designated a National Natural Landmark in 1974.

Listen to the audio guide for Onyx Cave Free on WIP — starts by itself when you arrive, even with the screen off

Nearby

Cave of the Bells monumenti · 1 km away
Kentucky Camp beni_culturali · 4 km away
Santa Rita Abbey monastery · 9 km away
Infrared Optical Telescope Array observatory · 11 km away
Empire Ranch beni_culturali · 14 km away
Rosemont Copper mine · 15 km away