Hi, we stayed in G3 with a 32 ft motor home. There was plenty of room. The site to the right of us (if you’re standing looking at the lake) was huge! These would be primo spots! I don’t know what # the other one was but if you look on the site map you should be able to determine. Great place! Enjoy! Bring serious mosquito spray if visiting in July :)

If you go to the Recreation dot gov website you can at search for Diamond Lake in Oregon you can access a site map of the two campgrounds. I used a filter for our trailer length to select our site but I would you caution you that there might be a little effort needed for leveling once you're at the site. Also reservations are only open 6 months in advance so currently nothing past the first week in June. There is an active ranger station there so a phone call might help. Enjoy your visit.