Headwater Campground @ Flagg Ranch Yellowstone

Check rvparkreviews

Their web site specifically states that tents sites are available. By that I would assume pop ups are allowed also.

"Are pop-up campers & tents allowed?"

As I remember, yes. I agree...look at rvparkreviews.

If you're in a tent or pop-up, why not stay in one of the park's campground with much better scenery and space?

There were tents and popups when we were there 2 years ago.

2gypsies wrote:
If you're in a tent or pop-up, why not stay in one of the park's campground with much better scenery and space?

And a heck of a lot cheaper too.

Agreed, go to the cheaper side of Colter Bay....beautiful USFS Campground with showers just down the road a piece at the laundry. Loved it there!! Isn't Flagg Ranch between Yellowstone and Grand Teton?

We camped between a popup and tents, when we were there 2 years ago.

I have looked at Coulter Bay & Gros Ventre, but neither take reservations. More than likely, arriving on the weekends, what would be the likelihood of being able to get a spot, much less two since there will be two families?

I'd say getting a spot in Colter Bay or Gros Ventre campgrounds would be very doable, especially if you can get to the campground before 2pm, earlier, if possible. Stay close by the previous night. Each has 300 non-reservable sites. We've been there many times with our 40' motorhome and have never see them full. With a pop-up or tent you'll have your choice of any site.