This is an OK campsite. Our camp spot wasn't flat. There was water across from us. The worst thing was the outhouse. It stunk really bad and wouldn't think about returning there
Most people doing the great American roadtrip think Rushmore is a must, and most people have barely heard of the badlands. I'm gonna let you in on a secret, Rushmore is not as amazing as you think it is. They're tiny and it's boring. A short drive away (in the across America timeframe) is the Badlands. And they're not overrated, they're underrated and amazing. Spend your time in this amazing American landscape (and pass up Rushmore).
Camping in the badlands area is a must! There are so many hikes in the area that a couple days is necessary to soak up the greatness of the scenery! We enjoyed our stay at Cedar Pass. Nice sites with good amenities.