I pulled a 35 footer up there with a similar truck. It's steep but no big deal. Not much shade at the top but it is a beautiful view from there.
We spent the first two nights of seven at a lower level site with our trailer hanging out in the drive because they claimed that I told them that my trailer was only 25 feet long. I told them since I've never owned a 25' trailer it was pretty unlikely that I would tell them that. They insisted it was my error not theirs. Other than the "we're perfect and you don't have a clue how long your trailer is" attitude it was an enjoyable stay.