I'm not sure about NF campgrounds in the area, but Gros Ventre Campground is a
wonderful site within Grand Teton NP. We've tent camped there many times. (In fact, that is where we spotted a
Scamp last summer that started us on our egg search! We just acquired a
Casita last month and we're looking forward to our first trip to Gros Ventre CG in our own egg!)
There are no hookups but there
may be a dump station... I never had the need to look before but I think I remember seeing one at the entrance. No reservations, but we've never had a problem getting a site.
Here's some info on campgrounds in
Grand Teton NP and in the nearby
Bridger-Teton NF.
Have fun... it is a beautiful area!