I was just up there with my 25' (29' overall) TT. Stayed at a spot just above the lower parking lot. There is a wash, so backing in got the rig to some big angles. The site is very unlevel. I used about 4 inches of leveling blocks. To get out, I pulled up the road then backed down to the parking lot to turn around. The road is wide enough to making backing easy. Absolutely gorgeous area, well worth the trouble getting in and out! Personally, I wouldn't go any further up with a large and/or tall rig, because there are low hanging trees and I don't want to rip off my AC cover.