we were at molly brown last june. our site (6) was right on the lake.
our 26 footer fit perfectly but I think anything bigger might have had some issues. in site 6, we had to back down the driveway. which I didn't know until I got there.
make res for august right away. the res window for recreation.gov is 6 months. not sure about sites at the other cgs there. I road my bike through them but didn't look at any specific sites. I did, however, feel that molly brown was the best of the cgs there.