Lots of room
I spent my 14 days here. It is a bit noisy because of the trails used by off-road vehicles. The biggest grass field is sometimes used by multiple RVs and locals said don't even think of coming here during Sturgis' motorcycle rally. Right over the hill is the little town of Nemo which has a camping resort. All that folks spill out into this dispersed space with their ATVs and such. Mostly didn't bother me and I was here with two locals who leave their trailers here for lengthy amounts of time. Rangers apparently don't enforce the 14 days unless you cause a problem.
Month of VisitJune