You'll need to find a private campground not a state park unfortunately
They close labor day
D Whitaker is correct. Fish Creek stays open for a couple of weeks after Rollins closes. Worst case scenario is that you will need to pay for 2 sites.
Rollins Pond closes on Labor day. You might want to check out Fish Creek campground which is right next to Rollins as i believe they are open till about Oct 20th or so... They have sites that will also accommodate your 40 footer I believe...
No, website says it's only open between May 18 and September 3
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