Black Rock Mountain State Park, GA

I called the park back in 1995 when I had a F350 crew cab and 30' TT. Asked if I would fit and their answer was "if you can get it up the hill, you will fit.". Once started up, you are committed until the top. At places I was in first gear, foot 1/2 way to the floor, passenger tire over the white line and the trailer coming close to the guard rail. Luckily, it was winter time (use to be open year round) so had pick of our sites. Was fantastic looking down over Clayton 1,700 feet below.

Was just back there a couple months ago in the TC. Hill was just as bad as I remember it, but didn't have any problem because have tons of power to spare.

Be warned, it is 8-10+% grade for a couple of miles. If your rig can make it up that climb without blowing the transmission, you will fit. You would definitely want to disconnect the toad. Not sure what other hills you have climbed, but don't know of anything in the area to compare it.

I've been up there several times, but never with the TT. That road is one winding road straight up the mountain. I saw a MH go up there once but they seemed to be struggling. I was behind them and I can't tell you how happy I was with they turned off! You're welcome to try it, of course. Personally, I think Tallulah Gorge SP is nicer. It's probably about 20min south of Dillard, GA.

If you are at all interested in the Foxfire books or early mountain living, I'd highly suggest seeing the Foxfire museum. It is up the same road as Black Mountain SP. There is a left turn just before you get to the SP. Well worth the time spent, IMO. There are 16 buildings brought there from GA, NC, and TN. You can either hike the whole loop or take your car up to the top and drive down. We drove since my knees are shot. It's very hilly mountainous terrain.

They mean it when they say 25 foot sites. It's a serpentine climb but if you're confident in your RV driving skills it's not a problem.
Be aware of the occasional vertical mountain walls next to the road and pull over the middle a line a bit if it's too narrow and you should be fine.

It's a beautiful area around BRMSP: don't forget to stop by Dillard and Mountain City. There's a fruit and veg stand north of the park where we always stock up on fresh vegetables and fruit. Near the NC border is a creamery with some of the best homemade ice cream we've had. You can watch the cows graze where the milk comes from while you eat your cone. We always buy a couple pounds of fresh butter from them too.

If you find BRMSP too intimidating, there's another Georgia SP on Lake Rabun just west of Clayton: Moccasin Creek State Park. It's sites are level and very easy to park and the park has easy ingress/egress off the road.

Many have gone up there with larger than 25' RVs. I drove it many times to visit with my DRW F350. Going up, you had to keep an eye on the rear flair keeping it off the mountain at the same time having the frontend in oncoming traffic.

Very steep and tight roads. I would not like driving anything larger than a pop up. Nice place to visit but wouldn't want to camp there.

Sorry, double post.

I didn't even like driving my truck up it.

I would not want to do it. That is a steep climb up to the park. Others will chime in. I pulled a 22 ft TT up there with my Dodge Ram 3500 Diesel and it wasn't a lot of trouble, but I would not want to do it again. I'm chicken.