I’ve now only a couple caves left to explore in the system. I’m all out of troll, dragon and lizard-people jokes. So, instead I will just encourage you to reserve your tour in advance, since they can sell out. I was lucky to get the last single ticket to the shortest tour, where I was able to see the jewel-like dog’s tooth structure above. There are many more interesting crystal and other features to see. And the cave maps continue to expand as new sections are explored.

Here’s the link to my visits to all parks in South Dakota.