Well, we have a 27' TT, and not all of the sites in Canyon would have been able to handle us. We did get one there, but we had to park the Ram sideways in front of it. No problem, really. They looked up which sites would handle us before giving us one. We got there on June 14th, so we were able to walk in and get one. This time of year will be harder, but several of the campgrounds are non-reservable. Canyon is actually one of the reservable ones. We drove around Norris when we first got there, but it was hard to even manuever the roads with our rig (we're about 50' bumper to bumper) - almost got hung up on one curve in there. The campsites there were too small for us. Bay Bridge had some bigger sites, I believe, but not a lot of trees in there. The nice thing about Canyon is it's in the middle of the park, so it's a good satellite location for taking day trips to other areas of the park. I called there before I went and talked to a ranger who gave me good info on what campgrounds could handle us. I also had a brochure with good info in it. I can give you more details if you want on the campgrounds in the park. I'll be on line late tonight (after work) and tomorrow. Then I'll be camping Sun -Tue.
Dave