As steep as you'll ever want to drive with a hairpin curve or two. IF you don't have trailer brakes dont try it unless its a very small trailer. You can augment braking with 4 wheel low but don't keep constant pressure on your brakes or you WILL heat them up to the point of not working.

We stayed in an RV PARK 200yds from the State park entrance which was very plain. But we took notes for our next visit to stay in the canyon. We have a 36’ 5th wheel so our notes are tailor to our rig. Here you go: Mesquite area #85 pull through great #83

It’s steep but manageable. The bigger worry was the two lane road and the tight switchbacks. If another camper was coming towards you, you’d definitely need to take turns. But if all clear, then there is plenty of room. It’s beautiful!!

It's about a 10 percent grade when you get to the portion of the road that descends to the canyon floor. There are a couple of tight turns along the way. I saw folks in large Class A RV's as well a 5th wheel travel trailers at the campground.

It’s a pretty steep drive. Definitely wouldn’t take the drive down if the weather wasn’t good. It’s a 2 line road so you have to drive very slow since it is also a curvy ride down. But it is a gorgeous state park and we are looking forward to going back. Hope that kinda helps.

Honestly, I don't remember. Just remember how awe struck we were at the beauty of the canyon driving in to the campground

If I remember correctly, it was paved and not noticeably steep.

Not very as I recall. Nicely paved.

It's a bit steep, a couple winding corners and narrowish in places, but it's all paved so not really an issue. It's not a very long drive and the challenging bits are short. We did it in a 39 ft 5th wheel and there were plenty of large rigs there so go slow and use your exhaust brake if you have one - else use a low gear - and it's no problem

It's a 10 percent grade on the switchbacks.

Pretty steep, but plenty of RVs make it daily.