- It's in Black Hills of South Dakota. (Actually, I've heard of the Black Hills!)
- It was the 7th designated National Park. (1903, Teddy Roosevelt)
- It was the 1st cave designated as a National Park. (It's a National Park?)
- It's the 2nd longest cave in the US. (It was 3rd until very recently.)
- It's the 6th longest cave in the world. (Two of the others are in the US too.)
- 95% of the world's boxwork formations are in Wind Cave. (Boxwork???)
- It's a 3-dimensional maze cave. (Too scary to even contemplate!)
We got to the Visitor Center and signed up for the Fairgrounds Tour--1/2 mile long, lasts 1-1/2 hours.
From above ground you'd never guess there was a cave under your feet. The cowboys who discovered it heard a whistling noise and followed it to a hole in the ground where wind was blowing out.
The Ranger who was our tour guide crammed a group of us into the elevator (building and original shaft built by the CCC; since updated but not enlarged) and took us down in groups. If you're claustrophobic, this is the first test. The rest of the tour was just fine.
I've put more pictures from Wind Cave on Flickr: Wind Cave NP