Watch for the turnoff; it's easy to miss. The BLM site indicates 35' max but when you enter the road there is a sign that indicates a max of 24' with an 18' trailer. Go for it! The road is steep, dirt and very narrow with a couple of tight switchbacks but look upon this as a challenge and you'll enjoy the ride up. Just keep your fingers crossed that you don't meet another rig coming down! When you get into the park, go slow and watch out for trees. The sites are for the most part very unlevel and pretty small but there are a few that a big rig can fit in. We stayed in site (they call them units) number 8 and it worked out just fine, even got leveled. It's kind of a side of the road pull through. Once you're in, it is excellent. Quiet and beautiful. There is water available but no dump. Each site has a secluded picnic table and fire ring. Have to haul out your garbage. Initially, we didn't have a MiFi connection but found that it sort of comes and goes. We were able to do a weather check for example. There was almost no one here when we stayed (until three vans from BYU arrived!). There's a good hike which is labeled Nature Trail. Great place to stay! We camped here in a Motorhome.