Trailer length and towing

I tow a 35' trailer and my truck is around 20'. So it's a significant length all together. Having said that, I've had no problems finding a place to camp or getting around in the parks. Did have one tough time when I was in Beavers Bend in Oklahoma and went down the wrong loop looking for a camping site. Wasn't so much the roadway, that was fairly easy to get around. It was the camps with the extra vehicles sticking out on the roadway. Made it tough with all the trees and extra bumpers but I made it. Didn't think I was going to at first and got a bit nervous. My wife said I missed the car by about 2 inches.