Absolutely the best campsite I've ever stayed at! You'll never experience anything like it, seeing the stars like how they should be! Unfortunately there's a little light pollution to the west, and to north, but almost nothing to the South or East.
This is truly remote camping, absolutely nothing nearby. Hardly any road noise or airplanes overhead.
This is Bear country, so be sure to store your food properly and practice proper campsite safety. I actually sat out and watched the stars with a can of bear mace in my camping chair right next to me, just in case. I was the only person at the campsite.
It's very well maintained, with very nice facilities. Need to bring in your own water, but there are restrooms.
If you're heading east from here, you can drive through the very large telescope array the next day, which is also amazing!
I can't recommend this campsite enough, it's unlike anything you'll ever experience!