This looks like it will be a nice page, but you ought to check the links. Many of them don't lead to a specific SP page, but to the first Area & Ranges (SP) page.
Edited to add: it appears you are working on the links; now they seem to go to outside websites, but they aren't working. I look forward to seeing this page when you are done.
There was a weird formatting thing going on in my cut-and-paste, the links should work now. Let me know if I missed one. Thanks for catching these!
I din't check them all, but the ones I checked seem to be working.
It turns out there are lots of Needles -- a worrisome statement on the creativity of the community :) -- and I was sloppy and attached the wrong one. It should all be good now.
Yes, Mark Doiron list attached it to his NP list, doubtless because of Wind Cave, Jewel Cave and Mount Rushmore. I think each is probably too small to warrant separate treatment.
I love the Black Hills. The only suggestions I have would be to add links to some climbing websites that feature the Black Hills (mountainproject.com has some good info), as well as add the Mickelson Trail - http://gfp.sd.gov/state-parks/directory/mickelson-trail/
Also, Bear Butte State Park is now $4 per person or $6 per vehicle (a very minor point).