Crystal Ball Cave
All photos courtesy of Louise Hose and Tom Strong.
Crystal Ball Cave is located in Western Utah. You can find out more about this cave and book a tour on the Bates Family Ranch website.
Lehman Caves
Photo by Famartin 
Photo by antaresjhw 
Photo by James Martin Phelps
Lehman Caves is located in Great Basin National Park in Baker, NV. You can reserve a tour through the National Park Service website.