Six Mile Gap Campground...
...on six mile road near the CO/WY border. We did the float on the North Platte River. This is a minimal campground near the river with nothing more than a vault toilet. Great views of mountains and plains and even some pronghorns near the camp. I don’t remember if there was potable water or not. Lots of roads around here are dirt so call the rangers if you have concerns about your low clearance vehicle.